| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 20120 |
25 Oct 2021 @ 1238 |
--- |
cb |
10.5 H into the eruption SB NV is jetting mix of water and steam 30'. SV mostly steam 10'. There is still a very narrow cascade of water coming off the hillside above the upper deck & a flow of water down the NV runoff channel. Nothing flowing down SV channel. CISTERN SPRING @ 1247 has dropped 3' below overflow (water level is right at the intersection of the crossed logs. No boil, clear & blue. EMERALD SPRING is a little cloudy, VERY turquoise blue, no bubbles & overflowing. |
| 20099 |
24 Oct 2021 @ 1000 |
24 Oct 2021 @ 1800 |
cb |
SB activity was much like yesterday. Some concerted play but mostly solo SVV with heavy runoff. If there was CNVSV, NV would stop and SV would take over with large fountaining that produced gully washer run off. 3 or 4 NVV's that got our attention at best. |
| 20093 |
23 Oct 2021 @ 1000 |
23 Oct 2021 @ 1830 |
cb |
SB activity has improved from yesterday. Not much notable activity in the morning. Activity seemed to pick up around 1255 with a nice concerted babbling brook. 1505 there was the first observed NV bounce in this interval & another @ 1544. Platform is mostly SV dominated with many SVV solos that were Gulley washers putting water down both the left & right sides below the footbridge. |
| 20080 |
22 Oct 2021 @ 1150 |
22 Oct 2021 @ 1633 |
bbev |
9D PE: Steady light runoff down SV channel, with little evidence of water reaching either side channel below bridge. Shoulder is wet and water is tickling down back channel. Very grumbly. 1200-1330; increased activity from both vents, some concerted, mostly angled, thick jetting from NV. SV had several vertical, fountain-like minors, with audible runoff, that put a little water down the channel towards Echinus. Mostly quiet after that. |
| 20071 |
21 Oct 2021 @ 1315 |
21 Oct 2021 @ 1343 |
mwolf |
well we're past the wispy, huffy stage. SV occasionally putting decent water down the runoff channel. imagine it will show up on the temperature logger. NV not very frequent but definitely more water than a few days ago. |
| 20061 |
19 Oct 2021 @ 1516 |
19 Oct 2021 @ 1541 |
cb |
6D2.5H PE..NV vent is having mostly wispy play with an occasional thicker, angled 15' minor. (viewed from upper deck) Nothing seen from SV & SV runoff channel is bone dry. |
| 20037 |
18 Oct 2021 @ 1508 |
--- |
mwolf |
steamin, huffin, and grumblin. dry runoff. in about 15 minutes of observing, saw a few NV splashes with one that i would call an actual angled minor. emerald and cistern look pretty "normal" to me. |
| 19995 |
16 Oct 2021 @ 1134 |
--- |
cb |
2D23H PE.. Steamboat is very quiet and no water. CISTERN SPRING is ~1.5' below overflow with a nice boil and clear pool. EMERALD SPRING is clear calm & in overflow |
| 19980 |
15 Oct 2021 @ 1245 |
--- |
cb |
2D PE. Steamboat is gently steaming & channels mostly dry.(snow melt) The icicles in the dead zone are AMAZINGLY BEAUTIFUL! CISTERN SPRING is down 2' below the inner tube rim. no boil. no steam. Water is a still, beautiful blue color. (still draining). EMERALD SPRING is turquoise blue, clear, calm & overflowing. |
| 19970 |
12 Oct 2021 @ 1915 |
--- |
Ben VL |
Both vents active, NV 20' give or take, SV hard to see with wind direction. Minors occurring every several seconds, kinda quiet in between. Not very rumbly. SV had a couple that were sustained for a few seconds but they didn't sound all that large. Did not see any vertical, but I was not there long. Steady flow under the bridge, and more than I would have suspected given the current minors. Wet spots in the runoff channel suggest either bigger minors have occurred, or melted snowfall (maybe both).
Cistern high and in overflow, relatively clear, with not all that big of a boil.
Emerald clear, calm, more blue than green, and probably in overflow (hard to see). |
| 19933 |
07 Oct 2021 @ 1731 |
--- |
cb |
9D4H PE.. Steamboat is a LITTLE BIT more active today. 1 concerted NV angled spray to 10' & SV angled splash to 3'. SV channel has areas of rainwater dampness & dry spots.
EMERALD SPRING is a bit clearer today with fewer bubbles & more blue than pea green again. Definitely not clear tho! It is still in overflow. CISTERN SPRING is still in overflow. |
| 19927 |
06 Oct 2021 @ 1655 |
--- |
cb |
SB entire platform is guiet, calm & dry as a bone. EMERALD SPRING is still overflowing, cloudy pea green with bubbles = wonky! |
| 19914 |
06 Oct 2021 @ 1032 |
--- |
cb |
7D21H PE.. Steamboat is very quiet. occational spritz of water out of SV, 3' MAYBE! NV just gentle billows of steam. CISTERN SPRING is still in COPIOUS overflow with a VERY VIGOROUS boil. |
| 19891 |
05 Oct 2021 @ 1815 |
05 Oct 2021 @ 1842 |
cb |
7D5H. Steamboat is gently steaming with a faint gurgle. Some very weak NV spray that is only visable from upper deck. Nothing from SV. Entire platform is dry.
EMERALD SPRING is a cloudy greenish color and there are tennis ball& ping ping ball sized bubbles breaking the surface on the east side of the pool and by the outlet channel. (bw side) It is in overflow. The 3 trees feature is active again with 3 more small vents (quarter sized) in its runoff channel. HUM, DOES this explain the SV major minor yesterday on 10/4? |
| 19885 |
04 Oct 2021 @ 1700 |
--- |
cb |
Steamboat is very quiet, little to no grumbling. a few wispy, 2'-5' angled jets from both vents & Channels dry. CISTERN SPRING is still overflowing with a VERY vigorous boil. EMERALD SPRING overflowing, calm! |
| 19881 |
04 Oct 2021 @ 0900 |
04 Oct 2021 @ 0943 |
cb |
I came down to SB because of the large 40° spike on the temp graph. SV runoff channel is very wet 20' below its vent. At Steerage the channel is damp and the dampness extends out beyond the bridge toward Echinus for a bit. Some pooling in the main runoff channel and the dampness extends to Tantalus creek. Steamboat is billowing steam and fairly (oddly) quiet. (1) wispy angled NV spray. Nothing seen out of SV. Back shoulder is dry. A weird, out of the blue, major minor? 🤪 CISTERN SPRING is still in COPIOUS overflow in all directions. EMERALD SPRING is steamy, calm and in overflow. |
| 19894 |
03 Oct 2021 @ 1700 |
--- |
cb |
Some light angled spritzing out of both vents. SV 3', NV 8'. Platform & channels are bone dry |
| 19859 |
02 Oct 2021 @ 1612 |
--- |
cb |
water has come into the platform with an occational 5' NV angled splash. Nothing from SV |
| 19854 |
02 Oct 2021 @ 1000 |
02 Oct 2021 @ 1030 |
cb |
3D20.5H PE. 30° Steamboat is gently billowing steam from both vents with slight grumbling sounds. entire platform is dry. no spray from either vent observed. Gurgling from the crevice between the upper deck and the NV in the rocks is very pronounced this morning. CISTERN SPRING is in overflow in all directions. @1300 no water yet. |
| 19830 |
01 Oct 2021 @ 1500 |
01 Oct 2021 @ 1513 |
bbev |
3D,1hr PE: Very soft, barely audible rumble, with occasional billowing steam from both vents. Runoff channels dry. No water seen in short observation. CS is overflowing in all directions with moderate boiling, clear blue pool. |
| 19804 |
30 Sep 2021 @ 1114 |
--- |
cb |
1D 22H PE. EMERALD SPRING is clear calm turquoise & overflowing. @ 1153 CISTERN SPRING is filling, water level way down in the vent and just barely visible at this time. ( below the 2 "holes" on the east side) Audible churning with a lot of steam. STEAMBOAT is dry and quiet. |
| 19779 |
29 Sep 2021 @ 0900 |
--- |
cb |
19.5 Hours PE.. Boardwalk is a skating rink on this 20° morning! Some water out of NV with streamers. SV mostly steam with a weak trickle of water down the channel & a BIG billowing tall steam cloud. CISTERN SPRING is completely drained with no visible water & barely steaming. Vent & bottom was easily visible on this chilly morning. |
| 19760 |
27 Sep 2021 @ 0730 |
27 Sep 2021 @ 1735 |
cb |
A bit better today as i saw a bit more vertical action from NV BUT it is still occasional AND MOSTLY ANGLED. Good concerted action from 1140 - 1300 with 4 events at 1140, 1144, 1155 & 1303. Another nice CNVVSVV @ 1541 & 1614. Other than these its a lot of SV solos that put a LOT of water down the channel. Still SV dominated. The graph doesn't tell the whole story! |
| 19748 |
26 Sep 2021 @ 0730 |
26 Sep 2021 @ 1845 |
cb |
Nice water levels out of SV. Many very strong fountaining SVV with babbling brooks and rivers. 3 CNVV @ 1511, 1555 & 1745. SV solo @ 1832 that was a rock mover! Improved behavior today with more NV (mostly angled) & concerted play. |
| 19730 |
25 Sep 2021 @ 1910 |
--- |
User34 |
First vertical bursts seen from North all day, about 5-15 feet. Again at 1928 |
| 19726 |
25 Sep 2021 @ 0750 |
25 Sep 2021 @ 0810 |
bbev |
14D,1hr PE: Heavy geyser fog this morning. SV still most active, playing vertically and putting out audible runoff. Only angled play seen from NV in brief observation. Appears to have been an increase in runoff overnight, as all three channels below the bridge have water in catch basins and are damp as far as I can see. Slight accumulation of debris in trough. Bookstore closing Monday. |
| 19723 |
24 Sep 2021 @ 1625 |
24 Sep 2021 @ 1900 |
cb |
Some improvement today. Still very much SV dominated with many SV fountaining, sustained solo's that put a nice babbling brook down the channel. These were occationally accompanied with NV, most angled, but a few with vertical bounce. Debris (pebbles from the last eruption that accumulate in SV channel) have not moved down the SV channel & into the trough yet. |
| 19718 |
24 Sep 2021 @ 0740 |
24 Sep 2021 @ 0810 |
bbev |
13D,1hr PE: Little change from yesterdays observation, other than NV showed some vertical bounce during a steamy concerted minor that put down good water from SV. No evidence of any stronger SV runoff overnight. SV runoff still steady, more than a trickle at steerage and no pooling in catch basins to the right of trough. |
| 19707 |
23 Sep 2021 @ 1730 |
23 Sep 2021 @ 1830 |
bbev |
12D,11hr PE: Both vents active, occasionally concerted. SV had several solo minors that approached vertical 15'+ and sustained for 10-15 seconds. Runoff at bridge was light and steady, with at least one minor that put water into the channel towards Echinus. Trough is mostly clear of debris, so should be a good tell of increased runoff. NV was less frequent with 20-25' angled play and no vertical seen. CS continues to be very high and overflowing in all directions. |
| 19694 |
23 Sep 2021 @ 0745 |
23 Sep 2021 @ 0810 |
bbev |
12D,1hr PE: Both vents active, NV angled 15’+, SV angled and independent of NV to 10’+. SV runoff has steady trickle that appears to reach all the way to Tantalus creek. Back shoulder appears moist, but is difficult to see due to wind direction. Steady, soft grumble from SB. CS continues to overflow in all directions, muddy pool is full and overflowing. ES is also overflowing, flat, and clear. This cycle appears different than the last IMHO, due to early high water levels in both CS and ES. Also due to earlier return of water to SV and the observation that SV is having solo minors, which it rarely, if ever had prior to previous eruption. |
| 19685 |
22 Sep 2021 @ 0800 |
--- |
bbev |
11D,1hr PE: Several light spritzes from SV, that barely reached the back shoulder. Did not see any liquid water from NV during my 5 min observation this chilly morning. May be some moisture trickling down the shoulder and SV runoff, but difficult to see in morning light. Softly grumbling. Much different behavior than last interval. |
| 19650 |
18 Sep 2021 @ 1432 |
18 Sep 2021 @ 1438 |
novakg |
1432: Emerald is in overflow with a lovely blue color.
1435: Steamboat has no water from the vents and the runoff channels are not wet.
1438: Cistern is in heavy overflow in all directions with a double boil in the center of the pool. |
| 19603 |
16 Sep 2021 @ 0918 |
--- |
cb |
5D2.5H PE... Steamboat is gently steaming, channels dry. CISTERN SPRING is high & overflowing in all directions. It has a weak 2 pt boil. EMERALD SPRING pool has dropped slightly but is still overflowing, calm, clear and blue green in color. |
| 19576 |
15 Sep 2021 @ 0847 |
--- |
cb |
4D2H PE & 30°... SB is gently steaming with occational gentle huffs, no water from the vents, channels dry except for the dampness in the far left side of SV channel (closest to the lower platform) that comes from the seap/crack below Jabba. This dampness spreads out 2' wide ~15' down from SV's vent. CISTERN SPRING water is ~ 1' below the rim of the inner tube and has a audible boil. To steamy to accurately view. EMERALD SPRING is calm and in overflow. |
| 19559 |
14 Sep 2021 @ 0945 |
--- |
cb |
Gently steaming, no water from either vent. SV channel is wet ~10' down the channel from the seap or crack below Jabbas jaw. Jabba is the big gray rock mound in front both vents. The "seap" is only visable by heavy steam. A rocky mound in between the lower deck and the "seap" obscures any view of this. CISTERN SPRING @1019 has no visable water or audible sounds but has a fair amount of steam coming from deep down in its vent. |
| 19526 |
13 Sep 2021 @ 0852 |
--- |
cb |
2D2H... SB vents are quiet and huffing steam. SV channel at the top is dry but wet 15' below SV opening and I believe this is from the steaming seap or crack that is developing below Jabbas jaw. CISTERN SPRING @1019 has no visable water or audible sounds but has a fair amount of steam coming from deep down in its vent. EMERALD SPRING @1754 Pool is high, in overflow, clear, calm & blue green in color. |
| 19505 |
12 Sep 2021 @ 0745 |
12 Sep 2021 @ 0915 |
mhreed |
Prior to 0800, Steamboat was in wet steam phase without jetting. At 0840 noticed tall NV jetting and a more vigorous steam column from a vantage point near Orby. Jetting of varied height continued through 0915 when we departed. SV was also bursting to heights of 10-25 ft. |
| 19486 |
11 Sep 2021 @ 1650 |
--- |
Graham |
10h post eruptive, all steam. |
| 19456 |
10 Sep 2021 @ 1030 |
10 Sep 2021 @ 2000 |
William |
Heard through the grapevine today that certain gazers have been highly critical and unappreciative of the recent notes regarding SB. I want to personally thank cb and bbev, Art and Larissa, Ben VL, Dan A, Suzanne, Demetri, Cris G. and any others who have taken their time to observe and report on SB during this interval. It takes a certain kind of jerk to criticize others who are putting in time and effort while you sit back expecting someone to tell you when to magically arrive for an eruption of the best unpredictable geyser in the world. I believe it is fair to say that any REAL gazers appreciate what those named have been doing, THANK YOU! |
| 19470 |
10 Sep 2021 @ 1530 |
10 Sep 2021 @ 1900 |
mhreed |
Observed from the lower deck. Overall, activity did not match that described over the past few days, but seems to have improved slightly from Ben's morning observations. A few isolated energetic minors were observed. Otherwise, play was frequent and typically concerted or led by South Vent. Notable events include: 1633 concerted (if lethargic) play with good discharge from South Vent, 1709 concerted play with sustained vertical water in both vents with very strong discharge down the South Vent runoff channel - energetic followup activity continued through 1711, and 1833 voluminous play from both vents with some vertical. |
| 19453 |
10 Sep 2021 @ 0830 |
10 Sep 2021 @ 1020 |
Ben VL |
Nothing much going on. Minors are severely dis-improved from the last few days. Much less sustain & volume, no vertical observed, and the best runoff was a 3. No evidence of anything strong occurring in the hour or two before I got there. |
| 19410 |
09 Sep 2021 @ 0912 |
09 Sep 2021 @ 1645 |
Ben VL |
Improved and dis-improved activity from yesterday. At 1031, 1050, 1116, and 1129 we had concerted vertical, sustained minors that all put out level 5 runoff. The 1129 event had immediate, large followup and I ran to decker. No additional followup after I got there. Activity crashed after. A good conc. V minor here or there but pretty much stayed in a lull most of the afternoon. Left at 1645. |
| 19386 |
08 Sep 2021 @ 0945 |
08 Sep 2021 @ 2146 |
Ben VL |
Dis-improved slightly from yesterday. Spent most of the morning and early afternoon in a lull. Eventually had some nice pushes with strong runoff at 1412, 1459 & 1504. Other highlights include 1720, 1733, 1802, 1945, & 2004. None of these minors were anywhere near the strength of those we saw yesterday and the day before where we thought it could've easily started. Overall baseline runoff is slightly better than yesterday, and SV is more willing to have minors independent of NV. Gravel in the trough continues to be moved around / added to. |
| 19377 |
08 Sep 2021 @ 0700 |
08 Sep 2021 @ 1835 |
Suzanne |
Activity not as good as what was reported yesterday. There were concerted minors but nothing really sustained. South Vent did have a few solo minors but they were angled. North Vent had many vertical bounces and a few taller minors with South Vent joining in. I counted 15 total minors throughout the day that were good enough to note with decent runoff (porpoising) from South Vent. The best occurred at 1411, 1500, 1504, and 1719. Some of the better minors were spaced over an hour apart before the next good one. Activity picked up slightly in the evening to keep us there an extra hour with minors occurring at 1719, 1733, and 1802. |
| 19365 |
07 Sep 2021 @ 1130 |
07 Sep 2021 @ 2100 |
Ben VL |
Somewhat similar to yesterday. Had some fantastic surges in the morning and early afternoon, at 1332 a push came with three good back to back strong minors (yesterday most did not have followup). It quieted down after and went into a lull most of the afternoon with a couple other strong events tossed in. Play in the evening did not get as strong as after yesterday's afternoon lull. A lot of strong minors begin with NV, then SV joins in and both go vertical and get VERY large, then SV takes over and finishes it off. Often times the runoff on these is a 4+ or a 5. NV still seems to be dragging SV into nice behavior most of the time, although in the evening it seemed like SV was starting to become a little more willing to behave independently. |
| 19469 |
06 Sep 2021 @ 1000 |
06 Sep 2021 @ 2200 |
Art |
60 Days Post Eruptive - Entering to put some observations to the USGS temp chart which I'm sure will raise some eyebrows! Arrived at 1000 with the intention of sitting on Constant/Whirligig but thankfully was called over by Ben due to very interesting behavior. At 0932 MDT (0832 MST) Ben observed a VERY strong concerted N/S minor. Then at 1016 MDT (0916 MST) another HUGE concert minor occurred, washing large amounts of gravel down the South Vent runoff channel to the bridge/steerage. The event had little if any followup, but then at 1122 MDT (1022 MST) Ben, Larissa and I were at Decker when out of nowhere another HUGE minor occurred. The minor lasted for 15-30 seconds and if it was any other time in this active phase you would have sworn that SB was starting. Dan confirmed that large amounts of gravel were again washed down the runoff channel and little to no followup occurred. These large events are shown on the USGS temp chart as spikes to 50°c. More moderate concerted minor events occurred after this from around 1200-1300 (MDT). At 1412 and 1419 MDT (1312 & 1319 MST) an incredible concerted minors got us on the radio as SB looked like it was about to start yet again. This event shows as up well over 50° on the USGS temp chart. After that heart stopping series, SB returned to behavior more in line with the last two days, as opposed to the mornings activity. N/S concerted minors with periods of stronger activity punctuated by 30-50 minutes of decreased activity. These lulls in activity featured either both vents being mostly quiet or North Vent sending large flashy bursts up with little/no south. Cistern Spring is still in good overflow with a very slow/small runoff into the muddy pool. Emerald Spring is still in very good overflow, compared to last week. Crater Springs is not doing major or minor eruptions and is in constant boil from the North Pool vent. |
| 19343 |
05 Sep 2021 @ 1220 |
05 Sep 2021 @ 2040 |
Ben VL |
Long periods of quiet with intermittent bursts of strong activity. Mostly quiet with occasional surges early in the afternoon. 1608-1720 had increased activity with concerted NVV & sustained SV noted at 1608, 1611, 1621, 1626, 1631, 1633, 1639 huge N vert, 1653, 1657, 1706, 1711 tall, thick Nvert with heavy SV solo finish, 1719 HUGE vertical NV, 1720 smaller. Mostly quiet until another push at 1810: 1810 heavy, tall SV + RR, 1812, 1813/4, 1815 both V & sustained for almost a minute. 1816/7.
Smaller push at ~1920, & again ~2020. Runoff very light outside of strong minors. Cistern is very full and overflowing on all sides. ES has much more runoff than yesterday or the day before per Art & Larissa, clear, calm, and mostly blue. |
| 19468 |
04 Sep 2021 @ 1015 |
04 Sep 2021 @ 2000 |
Art |
58 days 4 hours since last eruption. After a very lackluster past few days, Steamboat is back to having concerted minors with decent water output from the south vent, as well as south solos and tall north vent minors. Any periods of concerted minors were followed by long periods of relative inactivity or energetic North vent solos. |
| 19467 |
03 Sep 2021 @ 1100 |
--- |
Art |
57 Days 5 Hours - Steamboat looks zapped of energy. South vent runoff a trickle. Signs of some stronger minors overnight from the bottom of south vent runoff channels gravel in trough pushed back about 3-4”. Went back later in the day around 1800 and totally unchanged. Still barely any water out of South vent. |
| 19466 |
02 Sep 2021 @ 2000 |
02 Sep 2021 @ 2100 |
Art |
56 Days 13 Hours - Arrived to energetic minor activity with South Vent putting out weak solo minors and then stronger minors in concert with North. Definitely the most water down the runoff channel observed this week. That said, nothing sustained and activity quickly died down. Short observation period. |
| 19465 |
01 Sep 2021 @ 1600 |
01 Sep 2021 @ 1730 |
Art |
55 Days 10 Hours Post Eruptive - Mostly unchanged from previous days observations, with some minor improvement. North vent still very energetic and entertaining to watch, again strong enough to put water over into the South vent runoff channel at times. From the bottom of the South vent runoff channel, aka the bridge, aka steerage, no signs of strong minors overnight. When we started to head out, the runoff channel had a decent amount of water as minors had picked up. That said no ""raging rivers"" observed. Other folks had eyes on it longer and reported unimpressive minor behavior most of the day. Emerald Spring, still in overflow. Cistern Spring unchanged. USGS temperature charts confirm no major minor activity. |
| 19464 |
31 Aug 2021 @ 1530 |
31 Aug 2021 @ 1650 |
Art |
54 Days 10 Hours Post Eruptive - Arrived to an almost totally dry runoff channel. North vent dominant, very little South. Around 1600 South Vent put out enough water to dampen the channel down to the bridge (steerage). Trough showed signs of some stronger minor activity overnight. USGS temp graph shows probable source as a strong series of minors overnight with runoff temp approaching the 45° C threshold. Emerald Spring in overflow. Cistern Spring gentling boiling and overflowing heavily out of back channel. |
| 19463 |
30 Aug 2021 @ 1600 |
30 Aug 2021 @ 1730 |
Art |
53 Days 10 Hours Post Eruptive - North vent continues to dominate minors with very little South vent observed. Minimal runoff, trough shows no sign of any strong pushes. Water slightly cloudy and unchanged from previous day. USGS temp graph validates decrease in strength of minor activity over last 24ish hours. |
| 19147 |
29 Aug 2021 @ 1800 |
29 Aug 2021 @ 1830 |
User34 |
Minors every few minutes, mainly North dominated, occasionally with heavy jetting but usually it was just throwing slugs of water, often with a "twist" of the water. Two minors had vertical and lasted a bit longer, and were accompanied by South splashing to maybe 10-15 feet. A couple times, South gave some spits with only huffing from North. |
| 19462 |
29 Aug 2021 @ 0745 |
29 Aug 2021 @ 1700 |
Art |
52 Days Post Eruptive. Steamboats activity was dramatically decreased from yesterday. Almost no concerted minors, North vent dominated the day, at times playing so energetically that it kicked water over towards South Vent generating runoff. South Vent minors were few and far between with almost no vertical or sustained eruptions observed. Runoff channel was close to drying out between 1031-1113 and then again around 1500. At 1600 couple small angled minors, with no followup, dampened the runoff channel again. From steerage, water is slightly cloudy, compared to yesterdays crystal clear. Gravel in trough is unchanged with no signs of any significant minor activity overnight. |
| 19461 |
28 Aug 2021 @ 0655 |
28 Aug 2021 @ 1855 |
Art |
51 Days Post Eruptive - Arrived to a decent amount of runoff at steerage. Concerted minor activity continued from 0659-0808 but then things slowed down with gaps of about 20-30 minutes between minors putting any runoff down the channel between 0903-1047. At 1134 we had a huge concerted minor, 40'-50', that was sustained for approximately 10 seconds. That got everyones attention. That was not followed up however, and things quieted down quickly. Minors were few and far between until 1510, when our of nowhere North and South shot up together with a huge volume of water out of south that washed a TON of gravel down the runoff channel. Again, it had no followup and no runoff was generated until almost 1605. USGS Temp logger shows a spike to 50° C as a result of this activity! Finally at 1745, there was one more concerted minor worth noting, with minimal followup and weak minors through 1857. At steerage, runoff is crystal clear and the strong minor at 1510 pushed the gravel around in the trough. |
| 19460 |
27 Aug 2021 @ 1510 |
27 Aug 2021 @ 1950 |
Art |
50 Days 12 Hours Post Eruptive - North vent dominant, very little energy from south. Whatever energy it showed last night (2021-08-26), appears to be gone. Long periods with minimal/no minor eruptions capable of putting water down run off channel from south vent. Longest quiet period observed, 1622-1806. No signs of any strong minor activity at steerage. Trough unchanged. |
| 19458 |
26 Aug 2021 @ 1700 |
26 Aug 2021 @ 2130 |
Art |
49 Days 12 Hours Post Eruptive - Arrived to a much improved runoff channel, compared to bone dry two days prior on 8/24. Runoff was light but consistent. North vent was the vent that started most play with south "coming along for the ride" at times. South minors continued to create light runoff throughout the evening, with things slowing down around 1830-1943. At 2022 a huge concerted minor had both vents playing to 40-50' holding for 10 seconds. At 2040 another HUGE concerted minor holding 50'+ for close to 10-15 seconds, huge raging river of water down south vent runoff channel. No followup and any further minors, decreased in strength and frequency from 2047-2126. |
| 19088 |
26 Aug 2021 @ 0945 |
26 Aug 2021 @ 1330 |
bbev |
Walked up on big SV runoff. NV dominated and initiated any concerted play. SV put out several good runoff but with no vertical play and nothing over~12'. NV would have strong vertical, sustained minors and SV would just tag along for the ride. |
| 19043 |
24 Aug 2021 @ 0900 |
--- |
cb |
47D +a few hours...SB was ... ick today. Same story, different day. Arrived to a wet SV channel but no water flowing. By 1000 SV channel was drying up in spots, by 1400 SV to the footbridge was completely bone dry. Occational NV Angled, Vertical, VBounces & reverse jetting 10'-30', but just the intermittent SV ~5' angled spray that ONCE @ 1600 dampened the channel to the footbridge. EMERALD SPRING's pool is up and just barely overflowing. The Three Trees feature is bubbling and putting out quite a bit of water down the East side of ES run off channel. CISTERN SPRING IS also up a bit (1") and has a blooping boil. |
| 19030 |
23 Aug 2021 @ 1725 |
23 Aug 2021 @ 1910 |
bbev |
46.5D PE. NV having occasional, solo, thickk, vertical bounce, with spritsy, less frequent SV. SV runoff has very light, steady trickle all the way to steerage. Shoulder is damp, with much less water than when l walked out at 1130. At that time, Emerald was in very good overflow, with its water well over the stick to the right of its runoff. 1745 WOW!! Huge sustained NV, well over the trees, lasting about 15 seconds. Nothing really from SV. 1753 Concerted North Vertical with an angled SV that put down a BBrook. l think l will watch a little longer. l was about to say that Emerald was 3-4" below this mornings level, and no longer overflowing as l just walked down. Several more robust CNV with angled SV that put out audible runoff down SV channel over the last hour. |
| 18973 |
20 Aug 2021 @ 0954 |
--- |
cb |
43D 3.5H..Steamboat has changed A BIT. NV is still having forceful angled, vertical bounces & reverse jetting 10'-25'. SV has occational angled 5-8' jets and yesterday I saw a few weak babbling brooks, no consistent water down the channel and today the channel has areas of dry patches from the vent down the channel 10'. Back shoulder is damp but I think that's partially from rain, no trickling water. EMERALD SPRING is higher and just a hair below overflow. It's clear, calm & greenish. CISTERN SPRING is pretty much the same. |
| 18961 |
18 Aug 2021 @ 1734 |
--- |
cb |
41D11H..STEAMBOAT'S NV has some forceful angled jets and some vertical (+reverse jets) bounces 10' - 25'. SV is having some occasional jetting but the temperature and steam makes it hard to see height. Back shoulder is rain water damp in spots. CISTERN SPRING's pool is low, weak boil & overflowing toward Echinus and has green algae accumulating around the edges of the platform. EMERALD SPRING pool is higher (rained HARD last night and all day today), up 2" to almost overflowing level. It is clear, calm & greenish. |
| 19457 |
13 Aug 2021 @ 1552 |
13 Aug 2021 @ 1640 |
Art |
36D 9H - Unchanged per CB’s observations yesterday. Bone dry at steerage. Cistern is unchanged. Emerald spring is still several inches below overflow. |
| 18909 |
12 Aug 2021 @ 1929 |
12 Aug 2021 @ 2000 |
cb |
35D 13H.. Brief visit this evening. NV having some fairly strong angled and vertical jetting and bounces with an occational reverse jet over ET & the SV. No activity from SV observed other than steaming. However the SV runoff channel is damp. Back shoulder is DRY. EMERALD SPRING is still WAY below overflow by ~3-4". It is clear calm & greenish. CISTERN SPRING is still low and overflowing toward Echinus & Veteran with a bit out the backside into the bobbysock trees. Still has a weak boil. Pool is clear and blue. |
| 18861 |
07 Aug 2021 @ 1730 |
--- |
cb |
30D11H.. EMERALD SPRING is still WAY below overflow. Same level as last report ~4". It is calm & blue green in color. STEAMBOAT'S SV channel is bone dry. I saw ONE 5' Spritz during my observation. NV is having occational angled jets, some vertical bounces and reverse jets to 10'-20' sometimes accompanied with loud (booming) forceful huffing. Jabba & back shoulder dry also. CISTERN SPRING is the same. Barely overflowing toward Echinus and toward Veteran. It has a weak boil, water is clear and a beautiful turquoise blue color. |
| 18793 |
02 Aug 2021 @ 0833 |
--- |
cb |
25D2H.. Steamboat is doing much the same activity as I've observed in the past few days. Strong huffing of steam from both vents but predominantly NV. NV is a mix of steam and both angled jets and strong vertical bounces of water. SV is mostly all steam with an occational wispy spritz of water. SV channel is very wet ~10' below its vent and mostly dry above it. There is a thin trickle of water that appears to be coming from a steaming vent somewhere below Jabbas right jaw and flows down the far left side of SV channel. Channel is wet with a continuous trickle of water to the footbridge and beyond. Back shoulder is dry. This note is taken before any rain overnight. Cistern Spring is the same >low pool, weak boil, overflowing toward Echinus and a bit in a low spot toward Veteran. |
| 18704 |
28 Jul 2021 @ 0800 |
--- |
cb |
Some angled play from NV but mostly huffing steam from both vents. SV runoff channel is dry from the vent down 10ish feet, from there channel is damp on the far left side to the foot bridge. |
| 18692 |
27 Jul 2021 @ 0900 |
27 Jul 2021 @ 1845 |
cb |
quick note. Very little water if any from either vent. mostly just occational steam. viewed off and on from Decker. SV channel is bone dry. Trough has some residual pooled water. EMERALD SPRING is at the same water level, down 4" from overflow, clear, calm and more blue than green. CISTERN SPRING is also the same. Only overflowing out the channel toward Echinus. weak boil. |
| 18660 |
25 Jul 2021 @ 0855 |
--- |
cb |
17D2.5H.. SB is forcefully huffing mix of steam and water from NV, SV mostly steam. SV run off channel at the top, just below the vent is bone dry, 15' below the vent the channel is damp. I believe this is from NV splashes coming over the "dip" (Jabbas left ear) and running down the lefthand side of SV channel. Very little water in SV. CISTERN SPRING is still low and barely in overflow with a weak boil. EMERALD SPRING is also the same, pool 3-4" below overflow, clear, calm, green. |
| 18638 |
24 Jul 2021 @ 1857 |
--- |
cb |
16D12.5H.. SB is huffing forced steam with some bounces of water from NV to 5' and mostly airy spray with bigger water droplets. Nothing but steam from SV. Both channels are bone dry. CISTERN SPRING is only barely overflowing out the established channel toward Echinus. It is cloudy blue with a very weak boil. EMERALD SPRING is still ~3-4" below overflow. It is clear, calm & greenish in color. The 3 Trees feature along the east edge of Emerald's runoff, close to the boardwalk, that I have watched for 3 years is putting out a little bit of water down Emeralds channel, but not much! No boil at all. The sputter in the green algae 3' toward the Museum is inactive. |
| 18600 |
23 Jul 2021 @ 0836 |
--- |
bbev |
Some occasional spritsy, angled jetting out of NV. CS only overflowing out back channel. Emerald springs still 3" below overflow. |
| 18572 |
22 Jul 2021 @ 0946 |
--- |
cb |
14D3H.. Steamboat is gently huffing steam. NV had a wisp of water in 1 huff. SV channel is damp in places but dry around the vent. Trough has water but I believe it is from rainfall, same with patchy dampness in SV channel. CISTERN SPRING pool is low and is 1" below overflow in most directions. The established channel toward Echinus has a weak flow of water. Cistern has a weak boil and is a cloudy turquoise blue color. EMERALD SPRING is very low. pool is still down ~4" below overflow. it is calm, greenish/blue and clear. |
| 18520 |
19 Jul 2021 @ 0800 |
19 Jul 2021 @ 0830 |
cb |
11D1.5H.. Steamboat is Huffing mostly steam with an occational wisp of water out of both vents. Channels are dry as is the Trough. CISTERN SPRING is about an inch or 2 below full overflow. Pool is just at the scalloped edges and water is starting to seep out of the established channel toward Echinus. Water is cloudy blue with a weak boil and very small convection waves if any! EMERALD SPRINGS pool is still way below overflow, ~4"+ below overflow, it is clear and calm, back to green in color and steamy! |
| 18501 |
18 Jul 2021 @ 1004 |
--- |
cb |
10D3.5H... SB is gently steaming with an occational huff. 1 spritz of water from SV. ET is wet. Nothing observed from NV. Channels dry. CISTERN SPRING is not yet in overflow. Still ~1.5' below overflow with a weak 1 point boil. EMERALD SPRING is even lower than last night, down ~5". It is clear, greenish, with slight convection in the thumb.
@ 1343 CISTERN SPRING is at about the same point in the pool. Very weak, sluggish 1pt boil |
| 18485 |
17 Jul 2021 @ 1944 |
--- |
cb |
9D13H... Steamboat is not even huffing much. Just gentle steam from both vents. CISTERN SPRING has filled to 4' above the inner tube rim or 6'+ below overflow..It has a meh (mediocre) 2 pt boil. EMERALD SPRING is 3-4" below overflow still, the pool has cleared, is more green than blue & only has slight convection in the thumb area. |
| 18446 |
16 Jul 2021 @ 0803 |
--- |
cb |
8D1.5H. Steamboat is gently steaming. No water in either vent. channels dry. CISTERN SPRING is filling. Water is only up to the cave, 8' below the rim of the inner tube. It has a vigorous boil. EMERALD SPRING is still below overflow, 3" below the out flow channel. Slight bubbles still in the thumb, cloudy opalescent blue in color. |
| 18410 |
13 Jul 2021 @ 0903 |
--- |
cb |
5D2.5H. Steamboat is gently steaming with light huffing. no water from either vent. SV channel is dry. NV has some pooling water in low depressions. CISTERN SPRING is empty, steaming and no audible sound of water deep in the vent yet. EMERALD SPRING pool has come up a bit but still not in overflow. Pool is still blue, slight bubbles and cloudy. |
| 18374 |
11 Jul 2021 @ 1409 |
--- |
cb |
3D7.5H near end! last rhythmic huffs/bursts of steam (and a bit of water) from NV. SV channel mostly dry. CISTERN SPRING has no water yet. EMERALD SPRING still milky turquoise blue, not overflowing with random bubbles in and around the thumb. |
| 18350 |
11 Jul 2021 @ 0831 |
11 Jul 2021 @ 0854 |
cb |
3D2H ie. NV is still continously pushing water/steam mix to ~15'+ with rhythmic huffing. SV is also a mix of light water/steam with a continuous flow of water down the runoff channel. CISTERN SPRING is empty and lightly steaming. No audible sound of water. EMERALD SPRING is milky cloudy, turquoise blue in color, still has the small bubblers breaking the surface and the pool is low and not in overflow. |
| 18363 |
10 Jul 2021 @ 2220 |
--- |
annelies8 |
still in steam phase |
| 18342 |
10 Jul 2021 @ 1758 |
--- |
cb |
2D11.5. Steamboat is still ie with milder play compared to this morning. NV still is producing mix of a thin veil of water with steam to 10'. SV huffing steam, no water in the vent or channel. CISTERN SPRING is empty and dry, no steam or audible water sounds. EMERALD SPRING is turquoise blue in color, cloudy, not in overflow and with the same small bubblers on the edge of the pool closest to the boardwalk. |
| 18339 |
10 Jul 2021 @ 0724 |
--- |
cb |
2D50M. Steamboat is still putting out a continuous stream of mixed water and steam to 20'+ from both vents. SV & NV also have a continuous stream of water flowing down their channels! SV water is milky white. Green algae in SV channel is mostly gone. Another Energizer Bunny eruption! Cistern Spring is still empty but has steam. No audible water sounds from it yet.. EMERALD SPRING IS greenish blue, cloudy with random, small, golf ball sized bubbles breaking the surface by the thumb area of the pool. |
| 18320 |
09 Jul 2021 @ 1942 |
--- |
cb |
1D13H. Emerald spring is more blue than green, clear, Not in overflow and has 3 areas that have golf ball sized bubbles breaking the surface in the thumb, close to the edge by the boardwalk and on the south edge. More than this morning. SB is still pushing a continuous thin jet of water from the NV to ~15'. SV is forcefully huffing a mix of steam & water. There is a light flow of water down the SV channel and it is coated in white! Cistern Spring is empty/no steam and also is white with a yellowy/ light green tint on the top inner rim. |
| 18321 |
09 Jul 2021 @ 1500 |
--- |
MAB |
Most of the morning visitor and staff reports described bursts up to 50 ft including wetting the platforms and people - by late afternoon descriptions were lower heights but it still had some water in play |
| 18316 |
09 Jul 2021 @ 0705 |
--- |
cb |
24.5 H. Steamboat is still ie and both vents have water to ~40'. Cistern has drained with a slight wisp of steam. Emerald has some golf ball to tennis ball sized bubbles breaking the surface along the thumb and side closest to the boardwalk. It is very steamy, greenish and not in overflow. |
| 18291 |
06 Jul 2021 @ 0948 |
06 Jul 2021 @ 1103 |
cb |
35D22H. Both vents are active. Still NV dominated with tall, sometimes vertical play. SV has good, angled, jetting that is putting out some babbling brooks. Evidence of some nice SV play before I arrived as the SV tributaries below the bridge are wet and have pooled water in low depressions. Very typical of good activity I've observed.... then it drops off to a dismal trickle. Green algae is forming in SV channel ABOVE the trough and extends 30'+ below the bridge & it is most dense in the trough and 6' below the bridge. Emerald spring is clear, calm and overflowing. Cistern Spring water level is just at or barely below the scalloped edges (sinter rim) of the pool. It is overflowing out the established run off channels and a bit out the backside and toward Veteran. Color is blue and it's clear with a vigorous boil. Muddy pool is devoid of water. |
| 18287 |
06 Jul 2021 @ 0830 |
--- |
udo |
Temp gauge is offline. Significant drop in temps were recorded for more than a day prior to data link loss. |
| 18286 |
06 Jul 2021 @ 0715 |
--- |
cb |
35D 19.5 H. Steamboat has exceeded its longest interval in this series that started in March 2018. That one was 35D 10H 49M. |
| 18269 |
04 Jul 2021 @ 1230 |
04 Jul 2021 @ 2130 |
William |
As Carol described, hot and cold periods of activity with the last one of the day happening around 16:00. Really quiet thereafter with steerage runoff turning from pathetic to dismal intermittently until I left. |
| 18265 |
04 Jul 2021 @ 1027 |
04 Jul 2021 @ 1230 |
cb |
34D+. SB is having very active periods followed by inactivity. Active periods have tall, NV angled and vertical play accompanied by SV angled and aalllmosttt vertical, tall play. SV is currently putting out babbling brooks and several raging rivers. I have watched this play alot in the past few weeks and we get impressive action only to see it dissimprove directly afterwards. But, it is a holiday and.... :) 😀 There is more green algae in the trough and down the channel past the bridge. Cistern spring pool is low! Only over flowing out the established channel toward Echinus and barely over the back side. Surrounding edges of the platform are caked dry as is the muddy pool. Emerald Spring is low and BARELY overflowing. Event non-geyser related: >The Beverly's caught MANY cutthroat trout (22") in the past 3 days! |
| 18201 |
30 Jun 2021 @ 0830 |
30 Jun 2021 @ 1630 |
cb |
30D+ PE. This morning SB activity looked better than yesterday with a bit more water in SV channel. 0930 runoff is back to a trickle at steerage. next activity was @ 1510 &1525. we had a nice babbling brook that dispersed water into the channel toward Echinus and a wee bit (viewed with binoculars) down the middle channel just above the dead trees. Activity slowed down to a trickle and I left. Cistern Spring has not changed since yesterday and Emerald spring is clear, calm, greenish and in very slight overflow. The green algae in the trough and just below the bridge in the cracks is spreading a bit. |
| 18190 |
29 Jun 2021 @ 1750 |
--- |
Graham |
Not as good as yesterday. South unable to sustain any volume or runoff. North less active too. |
| 18189 |
29 Jun 2021 @ 0700 |
29 Jun 2021 @ 1710 |
cb |
29D PE. Arrived to a very lack luster platform. Very little continuous water flowing down SV channel. Tall, sometimes vertical NV accompanied with angled SV. Babbling brook at 0829 & 0912. Activity decreased after that to snooze level! From noon to 1615 activity has not changed much. Occasionally there will be a SV minor that puts a meh river down the channel. Water at bridge is mostly a consistent weak trickle @ 1711. There is a bit of green algae growing on the right side of the trough on the sinter shelf. Cistern's pool has dropped a smidgen & is overflowing only toward Echinus and out the backside. It has a vigorous 2 point boil.. Emerald Spring is clear, calm & greenish. |
| 18179 |
28 Jun 2021 @ 2200 |
--- |
William |
No follow up push since the 14:00 hour. Some strong NV minors through the evening and SV fountaining at 21:03 but never really tried to erupt this evening. |
| 18159 |
28 Jun 2021 @ 1945 |
--- |
Graham |
Good activity early morning with North active and South vent putting out a fair amount of water. Next activity was around 1400 with some sustained activity from North and South and the best water, including raging river. Nothing else significant and both vents were pretty quiet when I left. |
| 18120 |
27 Jun 2021 @ 0730 |
27 Jun 2021 @ 2016 |
cb |
27 D PE. Not much change from yesterday. |
| 18116 |
27 Jun 2021 @ 1100 |
--- |
TheHikingDude |
2 minors up to 60ish feet from NV. SV tried a couple times but only got to around 10 feet |
| 18104 |
26 Jun 2021 @ 1730 |
--- |
Graham |
Some improvement over yesterday per Carol. NV dominated. One raging river from SV and several babbling brooks. |
| 18086 |
25 Jun 2021 @ 0900 |
25 Jun 2021 @ 1700 |
bbev |
25D PE: Slight improvement from yesterday. Some solo and concerted SV play that put several babbling brooks down the runoff channel. Thicker NV, some were vertical. Cistern is a tad bit lower with dry patches on the backside and towards Veteran. A bit more rainbow sherbert colored algae growing above the muddy pool and much more orange colored algae in the Bobby Sox trees on the backside. |