Last Known Eruption
1d 6h 30m ago

Latest Eruptions

Eruption DurationInterval
15 Jun 2019 @ 1640 ns maj3d 3h 48m
12 Jun 2019 @ 1252 maj5d 11h 39m
07 Jun 2019 @ 0113 ns maj5d 4h 26m
01 Jun 2019 @ 2047 majsee comments5d 3h 18m
27 May 2019 @ 1729 maj107d 2h 6m
20 May 2019 @ 1523 maj6d 19h 29m
13 May 2019 @ 1954 maj5d 11h 54m
08 May 2019 @ 0800 maj5d 5h 40m
03 May 2019 @ 0220 E maj7d 3h 55m
25 Apr 2019 @ 2225 E maj17d 1h 41m
08 Apr 2019 @ 2044 E maj14d 3h 7m
25 Mar 2019 @ 1737 E maj8d 2h 43m
17 Mar 2019 @ 1454 E maj6d 13h 0m
11 Mar 2019 @ 0154 E maj6d 1h 15m
04 Mar 2019 @ 2339 E maj7d 11h 57m
25 Feb 2019 @ 1142 E maj9d 10h 36m
16 Feb 2019 @ 0106 E maj7d 4h 21m
08 Feb 2019 @ 2045 E maj7d 5h 23m
01 Feb 2019 @ 1522 ns maj7d 2h 50m
25 Jan 2019 @ 1232 E maj9d 5h 20m
16 Jan 2019 @ 0712 E maj11d 15h 10m
04 Jan 2019 @ 1602 E maj9d 16h 41m
25 Dec 2018 @ 2321 E maj8d 11h 21m
17 Dec 2018 @ 1159:49 E maj9d 10h 52m
08 Dec 2018 @ 0107 E maj9d 4h 30m
28 Nov 2018 @ 2037 E maj7d 1h 27m
21 Nov 2018 @ 1910 E maj6d 8h 6m
15 Nov 2018 @ 1104 E maj7d 18h 48m
07 Nov 2018 @ 1616 E maj7d 8h 55m
31 Oct 2018 @ 0821 maj7d 12h 52m
23 Oct 2018 @ 1929 maj~8d 5h 17m
15 Oct 2018 @ 1412 maj26m 7d 3h 47m
08 Oct 2018 @ 1025 maj7d 15h 31m
30 Sep 2018 @ 1854 maj6d 13h 36m
24 Sep 2018 @ 0518 maj~1h 0m 6d 19h 42m
17 Sep 2018 @ 0936 maj1h 15m 5d 5h 13m
12 Sep 2018 @ 0423 maj~55m 4d 18h 3m
07 Sep 2018 @ 1020 maj43m 8s 5d 10h 59m
01 Sep 2018 @ 2321 maj5d 2h 9m
27 Aug 2018 @ 2112 E maj5d 9h 29m
22 Aug 2018 @ 1143 maj14m 17d 21h 33m
04 Aug 2018 @ 1410 maj14d 15h 34m
20 Jul 2018 @ 2236 maj22m 14d 8h 59m
06 Jul 2018 @ 1337 maj32m 20d 20h 42m
15 Jun 2018 @ 1655 maj37m 4d 15h 49m
11 Jun 2018 @ 0106 maj6d 16h 2m
04 Jun 2018 @ 0904 maj30m 7d 13h 49m
27 May 2018 @ 1915 maj19m 7d 21h 27m
19 May 2018 @ 2148 maj6d 17h 57m
13 May 2018 @ 0351 E maj8d 4h 36m
04 May 2018 @ 2315 E maj7d 16h 45m
27 Apr 2018 @ 0630 E maj7d 14h 4m
19 Apr 2018 @ 1626 E maj35d 11h 5m
15 Mar 2018 @ 0521 E maj3y 193d 6h 38m
03 Sep 2014 @ 2243 E maj23m 1y 34d 3h 13m
31 Jul 2013 @ 1930 E maj6y 162d 2h 30m
21 Feb 2007 @ 16001y 274d 2h 19m
23 May 2005 @ 1441 maj1y 213d 18h 15m
22 Oct 2003 @ 2026 maj178d 16h 32m
27 Apr 2003 @ 0354 E maj32d 2h 22m
26 Mar 2003 @ 0032 E maj193d 3h 12m
13 Sep 2002 @ 2220 maj140d 20m
26 Apr 2002 @ 2200 ie maj1y 359d 16h 0m
02 May 2000 @ 0600 ie maj8y 214d 14h 11m
02 Oct 1991 @ 1549 maj1y 120d 7h 41m
04 Jun 1990 @ 0808237d 12h 31m
09 Oct 1989 @ 1937 A157d 8h 33m
05 May 1989 @ 1104 maj12m 109d 20h 19m
15 Jan 1989 @ 1345 A maj4y 112d 10m
26 Sep 1984 @ 1435 maj20m 82d 5h 34m
06 Jul 1984 @ 0901 maj8m 23d 9h 11m
12 Jun 1984 @ 2350 maj~19m 19d 19h 5m
24 May 1984 @ 0445 A69d 5h 45m
15 Mar 1984 @ 2200 A93d 13h 0m
13 Dec 1983 @ 0900 A106d 20h 2m
28 Aug 1983 @ 135865d 18h 33m
23 Jun 1983 @ 192516m 47d 19h 25m
07 May 1983 @ 0000 A20d 6h 3m
16 Apr 1983 @ 165714d 16h 57m
02 Apr 1983 @ 0000 A9d 9h 20m
23 Mar 1983 @ 144010d 14h 40m
13 Mar 1983 @ 0000 A12d 0m
01 Mar 1983 @ 0000 A24d 13h 5m
04 Feb 1983 @ 105515d 16h 55m
19 Jan 1983 @ 1800 ie18d 18h 0m
01 Jan 1983 @ 0000 A24d 4h 0m
07 Dec 1982 @ 2000 A24d 10h 0m
13 Nov 1982 @ 1000 A15d 11h 0m
29 Oct 1982 @ 0000 A19d 4h 0m
09 Oct 1982 @ 2000 A19d 9h 23m
20 Sep 1982 @ 103715m 13d 23h 1m
06 Sep 1982 @ 113633d 2h 33m
04 Aug 1982 @ 0903 maj43d 6h 51m
22 Jun 1982 @ 021213d 18h 22m
08 Jun 1982 @ 07506d 20h 36m
01 Jun 1982 @ 111411d 23h 20m
20 May 1982 @ 1154 maj10d 18h 54m
09 May 1982 @ 17004d 19h 43m
04 May 1982 @ 21176d 9h 17m
28 Apr 1982 @ 1200 A4d 6h 43m

Interval Statistics

Interval Count100
Min3d 3h 48m
Max8y 214d 14h 11m
Mean135d 15h 57m
Median10d 3h 40m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
11835 16 Jun 2019 @ 1742 --- bbev LE closing lower deck until further notice. Upper deck and boardwalk to Cistern will remain open for now.
11818 16 Jun 2019 @ 0805 --- cb 15H33M post eruptive. 40° SB is quiet and gently steaming. runoff channels are damp. Cistern Spring has water just barely visable in the bottom of the crater. It is lightly steaming. No gurgling/ boiling sounds. ** 0941 no visable water, no steam, no sounds.
11817 15 Jun 2019 @ 1925 15 Jun 2019 @ 2010 Polly I could hear Steamboat easily in the parking lot when I arrived. North Vent was in a loud steam phase while South showed little spurts of water. At 1946 NV went back into water phase - throwing small rocks & dirty water. SV began roaring with about 30’ of water height. At 1947, SV quieted & then came back roaring again. NV water was about 3 times the height of the trees behind it & about double the height of the taller trees to the right. At times SB was percussive while going in & out of steam. At 1952, NV became quieter, then came right back. SV was still roaring. 1956 NV went back into steam & was louder than SV. When I got back to the parking lot, the roaring was much quieter.
11807 15 Jun 2019 @ 0845 --- bbev 2D, 20H. SV runoff steady light flow down near channel. SV 25+' and frequent enough that water is running off the back shoulder with a steady flow down the back runoff channel.
11789 14 Jun 2019 @ 1135 --- cb 1D22H post eruptive. SB is steaming with a few low splashes from both NV & SV to 5'. All run off channels dry. Cistern Spring is in overflow. it's a clear beautiful turquoise blue color with a 2 point boil.
11759 13 Jun 2019 @ 0800 --- bbev ~19 hrs. post eruption Quietly steaming. Runoffs dry. Cistern drained, no sound no steam.
11756 12 Jun 2019 @ 1735 12 Jun 2019 @ 2011 bbev Arrived to NV jetting mixed water/steam 40+' and sv in strong steam, and runoff channel dry and white. ~1800 NV began to become more vertical, "granding" to 40' and SV began to mix with wispy water. By ~1830 NV appeared to be trying to pause, water would increase in SV, then NV would spike to 80', and SV back to mostly steam. NV continued to pause and spike and SV eventually turned to vertical (even right to left) full water. By 1900 the SV channel had moistened and had significant runoff. Both NV and SV continued concerted, vertical and angled jetting, with no water seen out of NV for at least 1, but no more than 2 seconds, at times. NV would usually spike 50-80' after these short "pauses". SV was steady at 25+'.
11761 12 Jun 2019 @ 1800 12 Jun 2019 @ 2000 Rubick I just wanted to had several comments to Bill’s note (11756). 1800 - Cistern level ~18” from top 2100 - Cistern is approximately 1/2 full. 1900 - 2000bDuring the steamboat after show the South vents appeared to have a “Firehose” like eruptions.
11758 12 Jun 2019 @ 1801 12 Jun 2019 @ 1930 MAB North vent post-eruptive spikes visible above the steam ... as seen from Vixen.
11769 12 Jun 2019 @ 0800 12 Jun 2019 @ 1350 Tara When I arrived at steerage at 0800, it was clear that no significant runoff had occurred there yet, because the trough was more than half full of gravel and the left channel was mostly dry. From 0800 to 1030 I checked back every 30-45 minutes and saw nothing encouraging. Word from the lower platform was that no North Vent vertical had been seen all morning, either. Starting around 1030, there was a slight increase in the height of North Vent and by 1100 the runoff was increasing very gradually. Around 1130-1140 I noted a couple of overflows that got the right side of bottom rock wet and there was a trickle down the left channel. At about 1150, there was a more sustained flow that got my attention and when I moved to the bridge I could see that gravel was being moved in the trough. At 1200 there was a minor with sustained South Vent that resulted in the first 5+ overflow of the day. From that point minors were coming every 1-2 minutes and every overflow was 4 or better. I could feel the increase in the temperature on the bridge from the warmer water in the channel beneath it. At 1214 there was another minor with even stronger sustained South Vent and a 5+ overflow that moved debris down the channel, washed gravel across Elvis, and made a gouge in the remaining gravel in the trough. There still had not been any vertical in North, but it seemed to be getting stronger. There were 4.5 runoffs at 1221 and 1223, then a 5 at 1227, and finally at 1229 North went vertical and South put out another 5+ flow, followed by another at 1230. At 1231 a "woohoo" minor was called on the radio and more debris washed down the channel with a 5++ flow. Then at 1233 there was a sustained strong minor with a very tall burst from North Vent. The platform was cheering and the overflow was off the scale, washing debris down the left channel and easily pushing a billiard ball size rock clear to the bottom. Then there was a brief quiet period when I feared that the chance had passed and I had the idea to check on Cistern. I jogged over for a quick look, and it was still overflowing and had a strong roiling boil to 6-8" in the center. By the time I got back to the bridge another "woohoo" minor was called at 1237, and starting at 1243 the minors were coming about once a minute with North vertical and 5 or better overflows that again increased the temperature on the bridge. There were more radio calls at 1248, then two more huge minors, then a wall of water as South Vent began to sustain and North Vent pushed higher and higher until it finally initiated the eruption just as the clock turned to 1252. North and South Vents surged upward together, then a needle of white water from North Vent speared straight up into the sky and it built to full power. The spray drifted to the east, where it filled a channel that is forming on that side, created a waterfall shortcut down the main channel, and also flowed across the trail on the east side of the bridge. About 4 minutes in, the breeze shifted slightly and North Vent began to appear muddy and many more rocks were thrown. A massive flood filled the west channel; I remember looking over 6 or 7 minutes in and seeing white caps. North Vent first ran out of water 27 minutes into the eruption, though wispy water returned to both North and South, and the eruption was still very loud with a lot of water a full hour after the start as I was leaving the area.
11742 12 Jun 2019 @ 1245 12 Jun 2019 @ 1252 bbev Several radio calls of strong minors. One false start call. Call to close the store at 1250. Saw water column climbing as l got to bench. Beautiful viewing conditions, lots of rocks.
11741 12 Jun 2019 @ 0715 12 Jun 2019 @ 0808 bbev No change at steerage overnight. Did not see anything approaching vertical out of NV during brief observation. Plenty of observers.
11729 11 Jun 2019 @ 1730 11 Jun 2019 @ 1930 bbev Plenty of concerted play with fair SV runoff. Did not see any NV vertical before mosquitoes carried me off.
11733 11 Jun 2019 @ 1656 --- Polly More pebbles and silt at the bottom of the Steamboat runoff channel bridge have been dredged since last night.
11734 11 Jun 2019 @ 1536 11 Jun 2019 @ 1608 Polly Just after I wrote in my book, “Plenty of water but not enough oomph,” a nice series began. Minors at 1536, 1537 (heavy vertical North & strong South & raging river), 1546, 1547 (thick tall North but no vertical, with S jet), 1549 (thick, tall, wide - I called it a Holy Cow), continuing on to a “Woo! plus” at 1608. 3 or 4 “raging rivers” in that series. Long much quieter lull (~2 hours) after that.
11731 11 Jun 2019 @ 1115 11 Jun 2019 @ 1215 Polly 78% concerted. Some small South jets with 1 babbling brook. No vertical North Vent minors seen.
11745 11 Jun 2019 @ 1201 --- Bhoffer Powerful minors above 50’
11711 10 Jun 2019 @ 1615 10 Jun 2019 @ 1727 Polly About 60% concerted minors with the rest being North Vent initiated. No South initiated minors seen. A very small amount of water seen in the North Vent vertical spot. Some long pauses between some minors. Likely not as strong this hour as what I saw previously from Steerage.
11710 10 Jun 2019 @ 1559 10 Jun 2019 @ 1609 Polly Series of minors 1559-1604 that sent “decent“ runoff as well as “babbling brooks” down the runoff channel. Bottom of trough cleared to the low point on the right side. Mixed pebbles and silt in the other 3/4 of the trough.
11698 10 Jun 2019 @ 1016 10 Jun 2019 @ 1127 bbev 3 days 9 hours: Concerted play, NV to 30', SV 15-20+' with continuous runoff. SV having some solo sustained vertical play with decent runoff. SV strong enough that water is running off in the far south channel and down the shoulder between. NV had several voluminous, thicck minors, but nothing approaching vertical during brief observation. Continuous, steady, clear, SV runoff at bridge, trough has accumulated additional gravel since day before last eruption. Cistern opalescent and overflowing in all directions.
11665 08 Jun 2019 @ 1736 --- bbev Still quietly steaming, little more rumbling than this morning. Cistern 20-24" below overflow, opalescent with moderate boil.
11671 08 Jun 2019 @ 1642 --- Bhoffer Quiletly steaming with occasional larger puffs of steam. No water in runoff channel.
11643 08 Jun 2019 @ 0758 --- bbev Steamboat quietly steaming. Cistern has a vigorous boil just visible from the deck above, approximately 4-5 ft below the rim of the inner tube.
11630 07 Jun 2019 @ 1751 07 Jun 2019 @ 1803 bbev ~16.75 hours post eruption. Quietly steaming, NV puffing steam, but not making a sound. No water seen in brief observation. Cistern totally drained, no sound, no water, no steam.
11628 07 Jun 2019 @ 0830 07 Jun 2019 @ 1130 Rubick Both vents we’re putting on an after show! The North Bend was having constant eruptions 15-50’ much like Daisy. The south vent was quite active as well. All of the canals were running - milky in color. The runoff was tapering off at 1130 when I left. Cistern was approximately 3 feet from the top. I’m estimating 1/3 full. Cistern comments are subjective.
11621 07 Jun 2019 @ 1051 --- CrisG mixed water-steam with jetting from both vents. NV to top of trees as viewed from 2nd deck.
11615 07 Jun 2019 @ 0850 --- CrisG Rumbly steam phase not audible from parking lot. Watery steam from both vents, with NV having much more water than SV. No jetting noted. Cistern dropping.
11613 07 Jun 2019 @ 0630 --- Graham Steam is audible from parking lot. NV putting out very wet steam. SV just steam. Trickle of water down SV runoff and steady stream down NV channel. NV channel is eroding the soft rock by the bridge post and undercutting the small trees on the Cistern side. Wouldn't surprise me if they come down in the next eruption. Little debris on the Cistern path and bridge. Looks like more small channel erosion on the Echinus side and more debris on the path there, so wind was likely blowing in that direction.
11609 06 Jun 2019 @ 0730 06 Jun 2019 @ 2052 bbev 4D 11hr. Continuous light to moderate runoff from SV, with angled 15-20+'. NV angled jetting 30+'. Active period between 0749 and 0906 with regular Concerted North Vertical about every 10min. 0850 Sustained CNV with SV Heavy runoff (5+ at steerage). Several CNV follow up, then mostly quiet until 1030. CNV every 10-15 min. 1245 Sustained CNV with SVH followed almost immediatly at 1246 by another SCNV with SVH. 45min quiet, increased activity until 1510 SCNVw SVH, no follow up. 1607 SCNV with SVH followed by another at 1610. several CNV followed. 1800 relatively quiet with exception of thunder and heavy hail for past 90min., activity picking up some. CNV about every 20min. during second deluge. 2007 nice SCNV with sun out. 5 days 0hrs, FB wins again.
11601 06 Jun 2019 @ 1715 --- novakg No Steamboat yet. Plenty of lightning and rain.
11610 06 Jun 2019 @ 1155 --- Graham Runoff definition of Micah 5 is water over Middle Rock and runoff going over the flat rock on the left side of the bottom of the runoff channel. 5+ was my definition when the runoff completely covered the flat rock. 1155 First Micah 5 at steerage since 1100. 1246 Micah 5 all SV. 1247 flooding over bottom rock and half the left side sloping rock. Almost started from this one. Micah 5+ 1347 strong concerted Micah 5. Covered the bottom left rock. 1525 concerted vertical with Micah 5 runoff. 1608 and 1611 and 1613 Micah 5+. 1805 Micah 5. Hard to see after the rain and hail.
11504 02 Jun 2019 @ 1146 02 Jun 2019 @ 1147 cb Absolutely quiet! just steaming. no noise
11499 02 Jun 2019 @ 0800 02 Jun 2019 @ 1000 cb SB markedly quieted down during this observation with less continuous huffing with water out of NV to more rhythmic gentle huffing and MUCH less water expelled. Cistern Spring is rapidly draining. Down 2.5' in 2 hours.
11488 02 Jun 2019 @ 0800 02 Jun 2019 @ 0811 bbev ~11.25 hours post eruptive.The FB is softly huffing with mixed steam/water from both vents, NV upto 25', and light runoff in SV channel. CS is down 1' into inner tube and quiet, opalescent, no boil. New debris between CS and bridge. SV has milky runoff and trough is mostly clear of gravel. New debris on bridge.
11490 02 Jun 2019 @ 0510 --- Graham Still in rumbly steam phase audible close up but not in the parking lot. NV putting out watery steam with small runnoff in NV channel, more than a trickle. SV runoff flowing steadily but nothing over any part of middle rock. Trough is milky. Cistern dropping but still pretty full.
11483 01 Jun 2019 @ 0937 01 Jun 2019 @ 1941 udo Gravel pit is nearly totally down to bedrock. Left side is wet despite some moderate to heavy runoff. SV channel beginning to change to lighter color - light stripes. Seemed more percussive in the early morning, less so after noon. Concerted heavy minors with SV going vertical @ 0938, 0947, 1103, 1114, 1124. 1st concerted sustained heavy vertical 1424. Next 1910. Not much improvement but not disimproved either.
11466 01 Jun 2019 @ 0825 --- cb (37° 4D 15H post eruption.) Some nice concerted play with good water levels in both vents. Cistern Spring pool is low but in overflow. CS pool is VERY steamy again this morning. I am unable to see the boil but can hear it. Opalescent blue in color.
11457 31 May 2019 @ 1655 --- cb Mostly concerted play with quiet periods for a few minutes between minors. NV 10 - 20'. SV 10 - 12'. Activity much like this morning with slight increase in water level. Cistern Spring is a opalescent blue color. Still very steamy and hard to see the boil except when the breeze is out of the north. In overflow.
11453 31 May 2019 @ 1153 --- ge From an untrained eye, regular minor play from both vents
11448 31 May 2019 @ 0815 31 May 2019 @ 0835 cb (40°, 3D 15H post eruptive.) @ 831 Nice NV initiated play with angled 15' - 25' jetting and SV joined in a few seconds later with 8' - 10' jet that produced a nice babbling brook. SV runoff channel is very wet with obvious signs of good water levels. NV channel is dry. Did not see much concerted play in my brief observation. Cistern Spring is to steamy to see into the majority of the pool but edges show a color to beautiful blue green color. Audible boil and in overflow. Emerald Spring is also to steamy to see into the pool.
11425 30 May 2019 @ 0817 30 May 2019 @ 0820 bbev Some water seen from SV. Has not erupted yet.
11412 29 May 2019 @ 0942 29 May 2019 @ 1001 Art North and South vents quietly steaming. Air Temperature about 34-42. Cistern refilling, just below the “inner tube” with a vigorous boil. Still muddy/murky from previous Steamboat eruption.
11377 27 May 2019 @ 0830 27 May 2019 @ 1330 Tara There was a good push just as I arrived around ~0830 with strong overflow and some good NV vertical, but after that there was not much encouraging activity. There was one NV vertical at ~1305 with good runoff but no follow up.
11369 26 May 2019 @ 1721 --- Graham Three minors with North Vent vertical , best so far. NV has been mostly quiet today with some vertical every 1 to 3h. SV has been putting out a lot of water.
11366 26 May 2019 @ 0700 26 May 2019 @ 1400 Tara Brief pushes at ~0715 and ~0850 with NV vertical and good runoff, but they did not build. Overall runoff had increased from yesterday but NV was not getting much height or vertical.
11347 25 May 2019 @ 0625 25 May 2019 @ 0715 Kyle incremental improvement from last night. much more concerted play. getting some vertical from both vents. sustaning of minors greater. Runoff volume much greater. Rumbling has increased dramatically.
11346 24 May 2019 @ 2030 24 May 2019 @ 2100 Kyle SB activity very sparse during this time. 1-2 very short minors per minute. nothing lasting longer than 15 sec and most 5 sec or less. mostly either SV or NV alone with very few concerted minors. Likely in a quiet portion of it's cycle and a longer observation period is required for a truer picture.
11345 24 May 2019 @ 2000 24 May 2019 @ 2030 Stephen_Gemar SV was the more active of the two, with some nice runoff. NV to 25’+ at times, while SV was 10-20’, with some nice runoff. There was a quiet period of ~1-2 minutes after concerted minors. Nothing vertical or sustained for very long.
11342 24 May 2019 @ 1727 24 May 2019 @ 1808 bbev Concerted play ~65% with SV being most active. NV 25+', SV 20' with fair runoff. 1-2 min quiet between concerted min.
11669 24 May 2019 @ 0928 24 May 2019 @ 0935 Ben VL ~3d 18h in. Steamboat is having minors again. NV 15' or more, south is around 10' or so. Minors are relatively frequent and have some decent volume to them. Some concerted an sustained play as well. In the few minutes we were there, we saw two good concerted, sustained, and moderately thick (for this point) minors, and a couple low end babbling brooks. No vertical seen. Cistern is steamy and in overflow with at least a 1' diameter boil.
11337 24 May 2019 @ 0615 24 May 2019 @ 0715 Kyle During an hour of observation minor activity consisted of angled jetting from both vents. NV 20-40 ft, SV 10-25 ft. much of the jetting was concerted(~40%). 1-3 minors per minute lasting 5-30secs. in the last 1/4 hr a few (5 or less) vertical bursts were observed mixed in with SV jetting. they were short lived and 10 ft or less in height. Runoff in. SV channel is continuous but confined to middle of channel. no water has reached the "left" (as viewed from below) portion of the channel. Cistern is full and overflowing with a gentle boil.
11306 22 May 2019 @ 0630 22 May 2019 @ 0710 Kyle quietly steaming. no airborne water. small steady flow in SV channel running down to bridge in "steerage"
11280 21 May 2019 @ 0900 21 May 2019 @ 0930 Kyle Quietly steaming with occasional gentle puffs of steam. No water. Cistern is empty and quiet.
11397 21 May 2019 @ 0908 --- Ben VL In weak steam phase, not what I would quite call gentile yet. Huffs from NV every few seconds. Cistern is empty and quiet.
11271 20 May 2019 @ 0741 --- JarnoO Logger seems to be operational again. Started logging non-negative temperatures @ 1607:32 MST (1707:32 MDT), with end time 0641:32 MST (0741:32 MDT).
11372 19 May 2019 @ 0730 19 May 2019 @ 2130 Ben VL A lot like yesterday. Very cold and steamy, so I did not take a lot of notes. Many (probable) decent minors were obscured by steam, so it was hard to see exactly how SB was doing. North vent was having a lot of thick, tall angled minors throughout the day. It occasionally had vertical, but when it did it was usually brief. Follow-ups to the better minors were rare. South vent generally looked good for most of the day, but there were a couple stretches where it hardly played at all. Lots of quiet pauses that lasted a minute or more. A lot of the better minors were followed immediately by a pause. Had an energy peak between 1700 and 1800 with consistent minors that were tall, thick, and concerted, many of them were sustained, and there was not a lot of quiet time in between. The peak contained a good series of minors, the best of which was a concerted minor with good SV, and a 20' - 30' high, thick vertical burst out of North that was not sustained. Had another energy peak around 2000. Just as we were driving away, got a radio call that things were picking up again. We came back to look, and there were a lot of concerted, sustained, tall, voluminous minors with little time in between. Hardly any of them had NV vertical, though. The activity died down again, and we called it a day. Overall, nothing super exciting today, I did not observe any real Granding even. Plenty of minors that would have been extremely exciting if the NV play had been vertical.
11270 19 May 2019 @ 0627 19 May 2019 @ 1945 bbev 2" of snow and NE wind made viewing difficult. Plenty of concerted play with strong SV and heavy runoff. NV tall and thicck, 40-50'. First vertical splash actually seen was at 0900. IMO NV seemed slightly more active than SV, although SV had numerous vertical minors, whereas NV merely splashed 3-5 ' in the vertical area. 0900 to 1200 strong concerted minors seen from upper deck, NV jetting 50-70', SV vertical 30+' two to three times an hour, but impossible to see if anything from NV approached vertical. Two NV vertical splashes seen at 1219 and 1226. NV continued jetting thicck minors to 50'+. 1330 to 1630, wind change allowed for several NV vertical splashes to be seen. Concerted play continued with SV 30+' and NV jetting to possibly to 60+'. 1655, increased activity. 1700, strong concerted with vertical NV, followed at 1705 by a sustained, concerted NV vertical. 1725 concerted with tall, thicck NV with vert. splash. 1735 Very long, sustained, vertical concerted minor, best of the day, that put a huge amount of water down SV channel, lasting about 20 seconds, followed by NV jetting 60+' but unable to see if vertical due to steam and wind direction. Next hour was relatively quiet followed by an hour of active concerted minors, some NV vertical splashing. Going home at 6 day mark, No eruption yet.
11269 19 May 2019 @ 0600 19 May 2019 @ 1630 RMichaels Steamboat didn't have any exceptional minors during the times observed. By exceptional minors, I mean minors that would formerly be described using the highly subjective and now universally panned terms of "Woo," "Woohoo," "OMG," "Holy S___," etc. Steamboat had periodic increases in activity every few hours, but very few minors with any North Vent vertical play. As Bill mentioned in his note, the wind made for difficult viewing conditions so it's possible vertical play was obscured. Despite the general absence of vertical, North Vent was thick, tall, and voluminous. South Vent produced good runoff and appeared to have frequent vertical play (from what could be seen through the steam). Each vent had good energy and there were quite a few concerted eruptions. That said, it seemed to me like the energy shifted back and forth between North and South vent and they only occasionally matched energy levels. As of my departure time, it looked like a regression in activity compared to yesterday, which had some tall sustained concerted minors with vertical play from both vents that got observers on their feet. One minor at 1156 yesterday even caused one observer to yell "Woo!" in elation and encouragement. No such exclamations occurred in my presence today.
11351 18 May 2019 @ 1930 18 May 2019 @ 2130 Ben VL Snowy and miserable conditions this evening. It was so steamy it was hard to see what was going on most of the time. Did not take many notes due to the temperature. However, I did note two minors - 1940 (WooHoo, or better - not sure exactly), and 1942 (probably either a Woo or WooHoo - again, not sure). Vertical frequency was not that bad for the early part of the sit. Most minors that had vertical did not sustain it. South Vent had consistent and often sustained vertical. Good volume in both vents the whole time.
11262 17 May 2019 @ 2000 --- cb nice woowho @ 2028 CNVVSVH, @2045 A HOLY S**T that got us all standing up. CNVV to 80'+ with SVVH with a raging river! WOW!
11261 17 May 2019 @ 1330 17 May 2019 @ 1800 hurleyintjl Woohoo 1431, 1438 Omg 1450 (heavy runoff) Woo 1500 Woohoo 1518 Woo 1533 Woohoo 1554. Good runoff
11257 17 May 2019 @ 1331 --- cb Good water levels in both vents for this time post eruption. (3d18h) Mostly concerted starts but SV occasionally dominates with very tall (granding*ish) play accompanied with good babbling brook+ runoff. NV angled jetting 20' - 35' and will stop when SV dominates the play. (37°) Cistern Spring was to steamy to see clearly but was obviously overflowing.
11249 16 May 2019 @ 1244 16 May 2019 @ 1255 bbev Steady, light runoff at bridge, with increased flow over shoulder of middle rock (2+?). SV appears to have nice 10-15' angled jetting, and NV seen jetting the same. Trough has partially filled with fines and gravel. 1250 NV seen jetting 20'+
11243 15 May 2019 @ 0905 --- cb 41° Steamboat is gently steaming from both vents. Slight gurgling can be heard from the middle platform. SV runoff channel is dry. NV runoff channel still has some pooling in low areas and depressions. Cistern Spring is refilling and water level is 6'' below the rim of the inner tube. It has a 2 point vigorous boil.
11239 14 May 2019 @ 1651 14 May 2019 @ 1705 cb VERY quiet, just gently steaming. All channels dry. Cistern Spring has drained. no visible water, no sounds and no steam (65°)
11237 14 May 2019 @ 0900 14 May 2019 @ 0950 cb SB is rhythmically huffing steam only from both vents. All channels have a trickle of water. Runoff in both channels are a tiny bit cloudy but not milky white. @0915 Cistern Spring was down 3' from the rim of the inner tube and no boil.
11234 14 May 2019 @ 0646 --- Rubick Arrived at steamboat 645. It is in the steam phase. Cistern is about 4 feet down from the top. Runoff Channals have small amounts of water in them milky in color. All of the decks were total ice for about 1/8 of a mile from steamboat. Most of the ice had melted off by 0745. Several notes from yesterday‘s eruption. I arrived at 1130. For most of the day it had runoff’s every 5 - 10 minutes (babbling brooks). I was at the decks for most of the day, I did do several walk around in the lower basin and up to the parking lot. During the day until eruption I did not witness any Wahoos or OMG’s. At 1752 there were a series of Wahoos and OMG’s for approximately 2-3 minutes, Steamboat went dormant for a few seconds and the went into eruption at 1755.
11229 13 May 2019 @ 2040 --- steve The steamboat eruption happen with partly cloudy skies but some of setting sun did peek through. At about 2040 the wind shifted and drenched the platforms, driving most people out
11226 13 May 2019 @ 0640 13 May 2019 @ 1915 bbev Lots of concerted play throughout the day with SV dominating the action. SV had continuous runoff with strong, vertical, sustained minors occurring once or twice an hour. Vertical NV minors were less frequent, and shut down by SV quickly. There were 2 events during the day where NV was sustained for maybe 5 sec. with follow up, impressive con....STEAMBOAT 1956! Radio call at about 1953 of 4-5 BIG minors as l am writing this note at the trailer. Eruption called as we flew into parking lot. Tall, tall, tall seen from Emerald over the trees. l would say tallest of the half dozen l have seen from this perspective. Dirty NV with lots of rocks thrown above the water column. NV turned to steam maybe 15 min in, and SV continued to throw water 20'+ for the time we remained, about 2045. l am sure eruption post will have that info. I was saying that IMO there had been 2 good events that where considered "whoo who", or, concerted, vertical, sustained, tall minors, that get you on your feet. Both of those where followed by another significant, concerted minor within a minute or two. The last of these was recorded at 1454. We had left mid deck at 1915 after, what l had thought, was a relatively active period that had not produced much.
11225 13 May 2019 @ 0800 13 May 2019 @ 1400 Tara After a few isolated larger minors in the early morning, there was a Woo at 0949 and a Woohoo with NV Granding at 1038. From 1148 to 1225 there was a push with good runoff and occasional NV vertical, but the vertical splashes did not exceed 10-15 feet and could not sustain or build. Seemed to be headed into a lull by 1330.
11220 12 May 2019 @ 0730 12 May 2019 @ 1915 cb From 0730 - 1200 the activity has been mostly ( 80%+)concerted NV/SV events. 3 events producing some NV vertical action with significant raging rivers down SV runoff channel! Activity to this point has progressed nicely. Cistern Spring is in overflow with a 2 point vigorous boil. The addition of the boulder against the bridge has changed the ability to dredge the trough of accumulated silt, sand, gravel and rocks. It is down to bedrock directly beneath the runoff channel but the debris is piled up in front of the boulder. @1800 the debris flow has changed direction and is flowing out to the south. 1200 - 2030 had 3 notable events. A 1444 and 2 WOOWHO'S @ 1725 & 1848. @ 2030 there has been an audible increase in SB grumblings and increased sustained concerted events with SV raging rivers.
11205 10 May 2019 @ 1305 10 May 2019 @ 1438 udo Quietly steaming with occasional barely audible huff. SV channel whiter than yesterday (drier?). Cistern is overflowing in all directions with normal (good!) roiling boil over the vent. Both channels trickling at bridge area. ET has some white striping and a white left hip that disappear after wafting steam wets those areas a bit! Weird. Soft rumbles heard after 1400.
11202 10 May 2019 @ 1010 10 May 2019 @ 1035 bbev SB is quiet and steamy. Bubbler 15' directly in front of mid deck appears to be putting out a trickle of water down NV runoff. Bubbler 50' up NV channel also active. SV channel is white and completely dry. Cistern boiling, a little milky, and overflowing out west side, very little to the east. SV runoff still moist but no runoff past bridge. trough is partially filled with fines and small gravel. Large rock has partially dammed the runoff under bridge. Breakout in NV channel has no steam, unchanged..
11193 09 May 2019 @ 1259 --- udo Quietly steaming. SV runoff channel is white. Cistern is totally drained with barely any steam drifting out. Tiny trickles are flowing down both channels, however upper part of SV channel appears dry. Erosion is impressive as is the new boulder that hit the middle of the bridge. Emerald Spring and its neighbor are clear and in overflow.
11191 09 May 2019 @ 1114 09 May 2019 @ 1145 cb SB is gently steaming with an occasional huff. SV is a chalky white color and is dry but has a thin trickle of water flowing down at the bridge. Go figure! Cistern Spring has no visible water, no audible churning sounds and the faintest of steam. "IT" > the "Interesting Thing" in the NV runoff channel was eroded by Steamboats eruption yesterday and has no activity/steam. The trough has an accumulation of fine silt and sand built up in the runoff pool but there is some bedrock visable with coarser gravel closer to the bridge and in front of the new boulder.
11190 08 May 2019 @ 0802 08 May 2019 @ 1930 cb NV was straight up, not angled, most likely because of wind direction blowing toward decker's island. NV stayed in steam phase with a thin stream of water in the middle. Crazy vortex that swirled around this thin thin thin stream of water. Stayed that way most all day. At 1930 NV was starting to huff steam/and this thin stream of water. SV was hard to see, NV steam blocked it. Temps were cold and windy. @ 1930 Cistern Spring was 12 - 14" below the rim of the inner tube.
11187 08 May 2019 @ 1050 08 May 2019 @ 1630 cb @ 1050 SB is in constant steam phase. NV runoff is milky white. I'm not seeing the cycling from steam to water that I've seen in previous eruptions at this stage. @ 1630 SB is a bit quieter but still in steam phase. I saw no mixed water/steam phase today. There is a big bolder nudged up against the bridge at the trough. It was not there last night. Cistern Spring is down 18" from overflow @ 1135. down 2.5' @ 1500. down 3.5' - 4' @ 1625.
11186 08 May 2019 @ 0810 --- Rubick I wanted to add a few things to the RL Jones eruption note. Runoff water was milky white. During the irruption the majority of the water was running down on the East side of canals. It actually washed a rather large rock into the trough. Of course there were water in each of the canals; however, there was knee high water after I crossed the trough bridge. In my opinion leading up to this eruption (05/08/19) there were no Wahoos or OMG‘s. My observations were - Consistent 10-40’ minors from the NV & SV every 5-10 minutes with babbling water. Consistent for 36 hours prior to the eruption. Lastly I wanted to say thanks to all the Gazers for the information and encouragement. Roy
11185 07 May 2019 @ 1745 07 May 2019 @ 2015 RLJones My observations were almost identical to Carol's for both SB and Cistern. I was able to observe SV as the wind direction changed slightly. When NV hit 40 ft SV would be around 20 to 25 ft. Most minors were concerted. Never were any vertical. The larger minors (NV 40 ft) became more frequent after 1830 occurring about every 10 minutes each creating a loud strong rush of water in the main channel. I checked the rock at the bridge and they never went around the left side of the rock. As for Cistern: At 1755 there was light overflow out of the back left corner and the front right and was the same at 2005.
11182 07 May 2019 @ 1637 07 May 2019 @ 1728 cb SB is having some play out of both vents. SV runoff channel has had some nice babbling brooks. @ 1654, put water almost proposing over middle rock. 1658 & 1702, 1704, nice babbling brook. NV angled jetting 30 - 40'. Hard to see SV at middle deck as steam/breeze out of the west. Cistern Spring is barely in overflow. scalloped edges on the rim are visable. Overflow areas on all side are just moist. The "Interesting Breakout Thing" in the NV run off channel south of the boardwalk is not steaming today. ( weather today is snowy and cold) Trough is clear of debris just beneath runoff, (bedrock)but gravel still piled up in front of the bridge. Not sure if it is in the filling or clearing stage.
11176 05 May 2019 @ 1409 05 May 2019 @ 1432 bbev SV splashing enough to moisten the runoff channel that was dry this morning. Trickle of runoff at steerage. Cistern and NV runoff breakout unchanged. No water seen in NV, only quiet steam. 1430 NV spritzing some water.
11172 05 May 2019 @ 0903 05 May 2019 @ 0940 bbev Steamy and lightly rumbling. Area behind SV appears moist. Cistern is full, clear, boiling in two areas in center of pool. Overflowing in all directions as well as lightly to the east into muddy pool. NV channel breakout still steamy and unchanged from last night's observation.
11164 04 May 2019 @ 1537 04 May 2019 @ 1830 cb platform is quiet and gently steaming. No audible sounds. SV runoff channel is white and dry. NV channel has a thin trickle of water. Cistern Spring is filling. water level is about 1.5' below the rim of the inner tube and has a vigorous boil. ** Interesting "newish" this year breakout thing down at the bridge! (edited for those who didn't like the word NEW!) About 20' below the boardwalk, In the NV runoff channel, is a new steaming feature! It looks like a blow out hole! Fine debris built up in a berm around a newly excavated hole with bigger chunks of rock in it. It is the shape of a bath tub, about 3' by 6'. There is a new damp runoff channel that is black and dark gray in color and runs toward Tantalus Creek in 2 channels. Looks like the runoff channel meets up with Tantalus Creek somewhere in the grassy meadow west of Cistern Springs. Above it, north, toward the bw @ the bridge, is a fine deposit of gray mud. It has a strong odor and the steam leaves a very bitter taste in my mouth. It looks like it erupted, excavating a bathtub sized hole, produced runoff and scattered debris! I can hear a hissing/huffing sound. Steam is coming from a side vent and from a depression within the blowout zone. I have photos!
11161 04 May 2019 @ 0620 --- jkgood SB steaming nicely, very soft grumbling just audible. Cistern is boiling vigorously, water is just visible.
11155 03 May 2019 @ 1853 03 May 2019 @ 1907 cb SB is calm and quiet, just gently steaming. SV runoff channel is coated white but still has moist areas down by the bridge that are grayish. NV runoff channel has a thin trickle of water. Cistern Spring is empty. No steam or audible water sounds.
11148 03 May 2019 @ 0732 03 May 2019 @ 1017 bbev Did not hear start from Madison CG. Forcefull steam from NV, SV steamy but less force, light runoff in both channels. Beautiful sunny morning with both decks iced up with icicles everywhere.. Cistern down 20-24" below runoff, clear, no bubbles or boil. Heavy continuous SV runoff cresting shoulder of middle rock. Trough is mostly empty including gravel pit closest to bridge. NV runoff below bridge has eroded remarkably from last year. 0759 water returning to NV, jetting 50-80' and ejecting small rocks .0804 granding, pausing, hoth vents back to water. nv bursting 60 -80' and SV continuous 30-40+'.0808 slight pause, then NV vert to 90+', sv mixed with water still 30+'. 0842 SV turning to mostly steam, past half hour hs been water30+' from SV. NV has been consistently "Granding" 20-80', with some reaching 100'.. 0850 SV returning to water. NV has been non stop for past hour. 0907 SV cycling from water to steam, NV continues to jet to 80'. 1009, no change, SV mostly water, but cycling occasionally to steam. NV jetting and granding to 80+'.
11169 02 May 2019 @ 1400 02 May 2019 @ 1700 Tara Others have more detailed notes about minors as my time at Steamboat was short. In my time at steerage there were several strong flows that moved golf ball size rocks down the channel and overall the overflow was pretty good, though coming mostly from South Vent. North Vent a few vertical splashes during this span, with occasional sustained angled play. We also noted that the grumbling sound could be heard from the lower platform. Also of note was that the "glaze" deposits similar to those observed in late July/early August 2018 were starting to appear in the channel at steerage, but I do not know when that started.
11184 02 May 2019 @ 0940 02 May 2019 @ 1640 Polly Strong concerted minors with vertical surges (Woo-hoos) were seen today at: 0944, 1007 (not as strong as the others), 1110, 1231 (this one was a series of 2), and 1406. We saw a nice vertical series 1609-1620 that produced “raging rivers” (strong runoff). Today & the 2 previous days we often saw long periods of quiet weak minors in between the strong minors. I didn’t record when we first saw the milky coloring begin near the South Vent but I believe it was at about 1400. We all left on the early side due to a windy snowstorm.
11139 01 May 2019 @ 2029 01 May 2019 @ 2050 ypcaribou NV initiating with SV joining in within seconds most of time. Continuous babbling runoff at steerage from 2032 to 2040 with a raging river at 2035 after a sustained bursting. SV burst to tree tops from mid deck concerted with a somewhat shorter NV that was sustained enough to cause an audible raging river about 2045. In short time I was there, mostly shorter and angled bursts though many were concerted. Heard Sandhill Cranes in the basin.
11142 01 May 2019 @ 1801 01 May 2019 @ 1905 bbev Both vents active, mostly SV with angled NV. 1814 sustained solo sv with strong runoff. 1821 strong Concerted Minor seen from steerage, moderate sv runoff. Trough has less debris than last observed by this writer. 1825 another CM, no vert. from NV. 1828 solo, sustained SV with heavy runoff in left side of channel. 1833 another solo, sustained SV with runoff covering middle rock.1842 sustained vertical SV, followed by concerted minor with NV vertical seen from mid deck. Activity increasing. 1901, past 20 min has been frequent angled concerted, nothing strong, or with any substantial runoff. Big concerted minor as we turn to leave. Typical of the fickle b***h
11125 01 May 2019 @ 1545 01 May 2019 @ 1730 JeffL Very nice looking minors. Not many concerted minors or even verticals. SV seemed to be putting out a lot of water while NV didn't seem to be doing much.
11138 01 May 2019 @ 1300 01 May 2019 @ 1430 Polly SB had a “Woo” at 1323. After that, there was an unusually quiet period after 1330 for about 30 minutes. Lots of rumbling, but little water. It started stronger minors with good runoff at 1350. I went to steerage and saw continuous runoff of varying strengths 1404-1416 with a raging river at 1426.
11123 01 May 2019 @ 0930 01 May 2019 @ 1235 cb From steerage: the Trough is dredged to bedrock right under the run off channel. quarter size and bigger debris collected just in front of the bridge. It looks like SB had some nice minor activity overnight as the run off channel had running water with ice formations all the way on the left side. Impressive run off at Steerage all morning. Nice concerted minors with impressive SV runoff but most of the play is SV dominated. 2 NV vertical play at 1104 & 1140. We will stop on our way home tonight. more later.
11232 30 Apr 2019 @ 1125 30 Apr 2019 @ 1335 Polly North Vent stronger than South most of today. A couple of vertical North Vent minors seen today. Most minors had concerted starts, but durations were on the short side with several seconds between them. Runoff volume was decent at times.
11115 28 Apr 2019 @ 1145 --- cb very quiet. barely any steam. VERY VERY faint low murmur sounds. I can hear Ledge from lower platform!
11098 27 Apr 2019 @ 0846 27 Apr 2019 @ 0900 bbev Steamboat quietly steaming, south vent run off dry. No water seen in brief visit. No water visible in Cistern from above. Cistern lightly steaming and can barely hear water. Trough area definitely has eroded over the winter, and is partially filled with sand and gravel.
11107 27 Apr 2019 @ 0808 --- ypcaribou Quietly steaming with a gentle huffing deep in the vent.
11085 26 Apr 2019 @ 1212 26 Apr 2019 @ 1331 cb Post eruptive observation. Both vents still in continuous water phase. SV 10 -15', NV 30 - 50' steady continuous water jets. Nice grumbling sounds. Constant stream of runoff down SV channel. The steaming vent to the south appears larger than last fall and is huffing steam. @1319 SV runoff channel is damp but no longer has water. SB is fluctuating between water and steam and is quieter with some huffing sounds. Cistern Spring is 4' below the inner tube and the pool is clear and blue. It has some gentle bubbles on the west side. New thing to note > On Jabba's south ear there are 2 new small areas (vents?) that we observed steaming today. @1315 Cistern Spring pool has dropped another 4". Emerald Spring is a BEAUTIFUL turquoise greenish color and calm.
11079 25 Apr 2019 @ 0900 25 Apr 2019 @ 1900 Tom C. No eruption yet. Looked about the same as Tues. With, possibly, one notable exception. In my very subjective opinion, sometime before 1530 silica started to rapidly accrete in the runoff channel, turning it a slightly greyish white. By ~1800, it was white all the way to the top of 'bottom rock', with some faint zebra striping in the first 6' or so of the delta. The breakout springs just S. of Vixen also seemed to be much more silica-laden as well. With the one closest to the boardwalk being a gorgeous opalescent blue. This may imply an influx of hotter silica saturated waters. Or not. IIRC, this phenomenon [whitening of the r-o channel] was first observed following last year's disturbance. Either just before or during the 7/6 major. Trough substantially dredged, but runoff flow has changed quite a bit from last Fall. 'Amphitheater' on right side of trough still pretty full. Still about 4" of gravel covering area between trough and bridge. Edit:@Tara I definitely had that note in mind. As well as Udo's 7/6/18 entry "What's different with this from the others I've seen is this runoff was milky, not muddy..." and Bill's 7/7/18 note "There is a steady flow of milky water in both runoff channels at the bridge..." Neither of these actually talks about the color of the r-o channel itself, just the r-o. And I wasn't there on those dates. So I probably conflated all three. Who's to say what I was thinking, really? My apologies for any confusion this may have caused. But I think my pseudoscience supposition still stands.
11072 24 Apr 2019 @ 1500 24 Apr 2019 @ 1940 ddshepard Increased number and intensity of minors after about 17:30 as compared to earlier this afternoon. Notable Woo Hoo at 19:25
15 Jun 2019 @ 1640 JarnoO As seen on the Tantalus Creek gauge. Tallest spike is SB's. Discharge before spike: 6.96 cfps @ 1745 (attributing it to preciptation; before preciptation 3.83 cfps @ 1430-1500), first increase @ 1800 to 10.5 cfps. Highest 11.2 cfps @ 1815. Δ = 4.24 cfps.
15 Jun 2019 @ 1640 JarnoO Trace as seen on YNM. Noteworthy of this eruption, is that the eruption started at 1639 E and was loud enough to be picked up by the seismo in the first 3-4 minutes. Thereafter it apparantly was too 'quiet' to be picked up, up until 1650.
12 Jun 2019 @ 1252 JarnoO USGS' Tantalus Creek graph. Discharge before spike: 3.95 cfps @ 1345 (4.19 cfps between 1215 & 1330), first increase @ 1400 to 4.31 cfps. Maximum 5.71 cfps @ 1430. Back to near-normal @ 1600, with 3.83 cfps. Δ = 1.76 cfps
12 Jun 2019 @ 1252 JarnoO Trace as seen on YNM. Steamboat is at the top.
07 Jun 2019 @ 0114 JarnoO USGS' Tantalus Creek graph. Discharge before spike: 6.81 cfps @ 0215 (attributing that to preciptation); first increase @ 0230 to 8.59 cfps; max 10.2 cfps @ 0245. Δ = 3.39 cfps.
07 Jun 2019 @ 0114 JarnoO Trace as seen on YNM.
01 Jun 2019 @ 2047 JarnoO USGS' Tantalus Creek graph. Discharge before spike: 4.19 cfps @ 2145; first increase @ 2200 to 5.18 cfps; max 6.81 cfps @ 2215 (also @ 2230). Δ = 2.62 cfps
01 Jun 2019 @ 2047 JarnoO Trace as seen on YNM.
27 May 2019 @ 1730 JSJ Tantalus Creek discharge graph showing an afternoon rain event and Steamboat Geyser's 5:29 PM major eruption on 27 May 2019.
27 May 2019 @ 1730 JarnoO USGS' Tantalus Creek graph. Due to preciptation, Steamboat's spike isn't as noticeable as with previous eruptions. Steamboat's water reached gauge @ 1845 (12.7 cfps, from 11.5 cfps), highest @ 1900 (12.9 cfps).
27 May 2019 @ 1730 JSJ Norris Museum seismogram showing Steamboat Geyser's 5:29 PM-onward major eruption on 27 May 2019.
20 May 2019 @ 1523 JSJ Tantalus Creek discharge graph showing Steamboat Geyser's 3:23 PM-onward major eruption on 20 May 2019.
20 May 2019 @ 1523 JSJ Norris Museum seismogram showing Steamboat Geyser's 3:23 PM-onward major eruption on 20 May 2019.
13 May 2019 @ 1954 JSJ Tantalus Creek discharge graph showing Steamboat Geyser's 7:55 PM-onward major eruption on 13 May 2019.
13 May 2019 @ 1954 JSJ Norris Museum seismogram showing Steamboat Geyser's 7:55 PM-onward major eruption on 13 May 2019.
08 May 2019 @ 0800 JSJ Tantalus Creek discharge graph showing Steamboat Geyser's 8:00 AM-onward major eruption on 8 May 2019.
08 May 2019 @ 0800 JSJ Norris Museum seismogram showing Steamboat Geyser's 8:00 AM-onward major eruption on 8 May 2019.
03 May 2019 @ 0220 JSJ Tantalus Creek discharge graph showing Steamboat Geyser's 2:20 AM-onward major eruption on 3 May 2019.
03 May 2019 @ 0220 JSJ Norris Museum seismogram showing Steamboat Geyser's 2:20 AM-onward major eruption on 3 May 2019.
25 Apr 2019 @ 2225 JSJ Tantalus Creek discharge graph showing Steamboat Geyser's 10:25 PM-onward major eruption on 25 April 2019.
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