| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 16872 |
16 Apr 2021 @ 0750 |
16 Apr 2021 @ 1400 |
User34 |
lots of angled jetting from North, no vertical seen. South too steamy to see but frequent babbling brooks. Never seemed all too interested in erupting. Cistern at scalloped edge with a two-point boil. |
| 16866 |
20 Mar 2021 @ 1345 |
--- |
JSJ |
The new Steamboat Geyser article is still behind a paywall. The United States Geological Survey has posted public domain images from the article that show the Steamboat & Cistern plumbing system geometries. See attachments. |
| 16865 |
17 Mar 2021 @ 0900 |
--- |
RLJones |
The report of the University of Utah's 2018 study of Steamboat Geyser has been released. Goggle: "U scientists plumb the depths of the world's tallest geyser". They were able to track the fissures and channels down to about 450 feet. They appear to be planning to do a new and larger study in 2021. or later, to look deeper into the earth. It appears that the 2018 study did not go deep enough to find the reservoir(s). |
| 16858 |
03 Mar 2021 @ 2100 |
--- |
Polly |
Spike on Tantalus that doesn’t appear to be weather related. YNM went down at 1800. YNR has possible faint increase in boldness but could have just been increased in sensitivity. Hopefully someone else can take a closer look at data.
Tantalus update at 2135 - spike has a strong drop-off. |
| 16852 |
13 Feb 2021 @ 1445 |
13 Feb 2021 @ 1509 |
Micah Kipple |
Very steamy. Observations limited. Semi-frequent voluminous angled minors to 30 feet from North Vent. Steam obscured visual observations of South but it was participating in some minors as evidenced from sound and exactly two instances of discharge down the runoff. One concerted minor lasted about 10 seconds and discharge was strong enough to push gravel down the channel. |
| 16845 |
06 Feb 2021 @ 1415 |
06 Feb 2021 @ 1425 |
Micah Kipple |
Lightly steaming with no huffing. No evidence of flow down channel. |
| 16843 |
04 Feb 2021 @ 1540 |
04 Feb 2021 @ 1550 |
Micah Kipple |
No water yet(?). Light huffing steam. Center of runoff channel about 2 feet wide is snow free. |
| 16836 |
31 Jan 2021 @ 1645 |
--- |
markwolf |
no change to status quo in quick 15 minute visit |
| 16834 |
28 Jan 2021 @ 1620 |
28 Jan 2021 @ 1640 |
Micah Kipple |
Frequent minors 10-40 feet from both vents. A significant amount of minors are concerted. I saw one vertical sustained ~5 second 30 foot minor from South Vent. There may have been more vertical activity but swirling steam and ongoing tour-guiding hindered my observations. There is OK runoff but not a huge amount. Overall: looks OK for in the middle of a disturbance. |
| 16826 |
24 Jan 2021 @ 1529 |
--- |
markwolf |
consistent decent minors from NV. a few pretty voluminous. SV much more sporadic. steady but mild flow under the bridge |
| 16811 |
17 Jan 2021 @ 1500 |
18 Jan 2021 @ 1200 |
JarnoO |
Water was first detectable by the logger around 1500 on January 17. Temperature rose as expected, but started to average out at 8°C by 1800. Still around 8°C by 1200 today. |
| 16804 |
11 Jan 2021 @ 1310 |
11 Jan 2021 @ 1335 |
Micah Kipple |
Runoff completely clear. Frequent concerted minors to tree height with at least 3 considerable vertical minors sustained for 10-15 seconds each putting down a nice (but not massive) wave of runoff. A coworker of mine who came around ~0800 and has been at the upper platform since told me there has been a large increase in the size and volume of minor eruptions since then. |
| 16800 |
05 Jan 2021 @ 1405 |
05 Jan 2021 @ 1415 |
Micah Kipple |
Light steaming with some weak huffs. The channel is mostly clear of snow but some higher projections have patches which indicate that it's not having significant minors yet. If anything. |
| 16799 |
02 Jan 2021 @ 1530 |
--- |
ypcaribou |
Does not appear to have erupted as of 1530. Cistern roiling and full. |
| 16798 |
01 Jan 2021 @ 1400 |
--- |
ypcaribou |
Not very active, a few minors...Cistern was full with slight overflow. (time approximate) |
| 16794 |
27 Dec 2020 @ 1600 |
27 Dec 2020 @ 1605 |
Micah Kipple |
Large, period, voluminous puffs of steam seen from the overlook. I suspect that significant minors are occurring. Unfortunately I can't wait longer. |
| 16790 |
24 Dec 2020 @ 1415 |
24 Dec 2020 @ 1434 |
Micah Kipple |
Lightly steaming with some weak huffs. I saw maybe one little spritz from North. Channel is still snow covered. |
| 16788 |
23 Dec 2020 @ 1415 |
23 Dec 2020 @ 1425 |
Micah Kipple |
Light steam with occasional very weak huffs. No runoff. No water. Basically no sound. Very quiet. Cistern is up and overflowing with a 2 point light roil/boil. |
| 16490 |
30 Oct 2020 @ 1235 |
--- |
steve |
Steamboat was just steaming for the short time I watched it. The runoff channel is dry. |
| 16458 |
26 Oct 2020 @ 1218 |
--- |
markwolf |
better SV activity today, more runoff but little side trough by bridge still frozen |
| 16453 |
25 Oct 2020 @ 1843 |
--- |
markwolf |
nothing too impressive during a short sunset visit to the frozen deck of steamboat. runoff channel still quite snowy and frozen on the edges, so i dont think they has much significant flow. notably, cistern is low, a few centimeters below the scalloped edges. I'm no cb or bbev but there's my best in-basin update. my fingers are still thawing out. |
| 16421 |
14 Oct 2020 @ 1142 |
--- |
bbev |
Forceful steaming from both vent as we wave goodbye.
Water running down far back channel, possibly from condensation from W wind. So long you FB, hope to see you next spring :( Evidence of lots of runoff on Echinus side of steerage and would guess a shorter duration. Cistern down 3', just to rim of inner tube. |
| 16419 |
13 Oct 2020 @ 0700 |
13 Oct 2020 @ 1400 |
cb |
SB seems to have dramatically dis improved overnight. Play this morning was mostly angled jetting that occationally put a babbling brook down the SV runoff channel. There was some concerted play but water level was marginal at best. |
| 16417 |
12 Oct 2020 @ 0815 |
12 Oct 2020 @ 1930 |
cb |
Some nice minors for day 6.5 in this interval. Good concerted, thick, tall, vertical NV's with nice SV raging rivers @ 1032, 1348 - 1415 & a really nice one at 1830. |
| 16414 |
12 Oct 2020 @ 0759 |
12 Oct 2020 @ 0820 |
bbev |
6D, 11 hrs PE: Another welcoming minor as l walked up at 0759. 0806 very nice CNVSVSHr. Russell reported nice concerted minors in the hour before l arrived. Cistern lower than 24 hours ago. Trough has accumulated a little more gravel. light, sporadic runoff at bridge. Yak-Tac conditions on boardwalk with another inch of snow last night. 0819 SB favorite trick, big concerted minor as l say l am leaving for last day of work. |
| 16410 |
11 Oct 2020 @ 1905 |
--- |
cb |
5D22H PE. Steamboat had some nice concerted minors this afternoon with good runoff and verticality. :) A really nice, thick, tall, concerted NV with SV fountaining that produced a raging river down the channel. Interesting! Cistern Spring Pool has dropped a little. Water is lapping at just below the scalloped edges of the pool. Overflowing out the established runoff channel to the south and a bit out the backside. Runoff channel toward Veteran is trickling into the catch basin but not any further. |
| 16407 |
11 Oct 2020 @ 0802 |
11 Oct 2020 @ 0822 |
bbev |
5D,11hrs PE: Walked up to nice concerted minor with verticality from NV. and very good runoff from SV. NV jetting to 25+' and SV 15-20'. 0808 another nice CNVSVSHr. Good rumbling from the FB! 2" of fresh snow to make first tracks down the boardwalk. Trough has accumulated some additional gravel and last night's rain has put water towards grassy knoll. Steady trickle at steerage. |
| 16402 |
10 Oct 2020 @ 1248 |
--- |
cb |
water from SV minors has just reached the foot bridge at steerage. Water extends ~10' past the bridge. no trickle of water down the channel, it is just wet. |
| 16384 |
10 Oct 2020 @ 0752 |
10 Oct 2020 @ 0808 |
bbev |
4D, 11hrs PE; jetting from NV 10-20'. SV runoff is moist with occasional splashing out of the vent. No water at steerage or to dead forest. Trough clear of debris. Cistern is high with overflow creeping toward muddy pool and just filling catch basin to the West. One car in parking lot this morning! |
| 16367 |
08 Oct 2020 @ 1025 |
--- |
bbev |
Quietly steaming. |
| 16337 |
06 Oct 2020 @ 1018 |
06 Oct 2020 @ 1610 |
cb |
13H 15M into the eruption. Both vents are still throwing water! NV 25' continuously. SV 10' with a steady stream of water flowing down the runoff channel. Cistern Spring is down ~1.5' below the inner tube rim. It is calm, steamy and blue!
@ 1149 both vents are still throwing water! NV 35', SV 10+ and both continually. Cistern Spring is down 2' from rim of inner tube.
@1251 SB had transitioned to billowy steam as viewed from Yellow Funnel and Orby.
@1551 SB (19H into eruption)is rhythmically huffing billowy steam. Interestingly, SB's platform is dry and it looks like it's been coated in a layer of dried pottery clay. Especially Jabba. SV runoff channel looks like it's been painted with plaster of paris or a Porcelain paint! SO white! 19H - Cistern Spring is empty of all visable water. |
| 16334 |
05 Oct 2020 @ 0815 |
05 Oct 2020 @ 1915 |
cb |
9D9H PE. Not a lot of good activity today. 840 - 930 had some good SV with nice water flowing down the channel. (4) Other than that the only real stand up and shout event was at 1752 with a CNVVSVVH++. Would have pleased many on the platform if it had started but nope.... Not much followup after that. Cistern Spring is overflowing to the south and backside with a vigorous blooping boil. |
| 16331 |
04 Oct 2020 @ 0800 |
05 Oct 2020 @ 0120 |
Ben VL |
Had a couple active periods with several strong minors throughout the day. 1030-1130 had a lot of nice activity as well as the 1700 hour. Occasional isolated strong minors between. I stayed after dark for a while and saw a couple more isolated strong minors. Nothing got me on my feet shouting today. |
| 16324 |
03 Oct 2020 @ 0930 |
03 Oct 2020 @ 1930 |
cb |
7D9H PE. some nice minors that were mostly angled. a few SV that ok river down the channel then we had 1 good CNVVSVH+ @ 1905 that put a good raging river down SV. Cistern spring is low again like last interval. Only overflowing out the established channel toward the south. It has a very vigorous blooping boil 3 - 5". |
| 16321 |
03 Oct 2020 @ 0804 |
03 Oct 2020 @ 0819 |
bbev |
Both vents active. Light runoff at steerage. Past runoff has been enough for a trickle at the grassy knoll. Plenty of runoff in far southern channel below the bridge. Cistern somewhat low with scalloped edges exposed and muddy pool 3-4 " below overflow. Only overflow from Cistern is out the back channel towards tantalus. |
| 16317 |
02 Oct 2020 @ 0930 |
--- |
cb |
5D23H PE. Water is back in the system. Debris still scattered all in the SV runoff channel. Some light water on the back shoulder. No water anywhere near the grassy knoll. Cistern Spring is overflowing out the established runoff to the south, minimally out the back side and to the west. |
| 16308 |
29 Sep 2020 @ 1835 |
29 Sep 2020 @ 1851 |
cb |
3D 8H PE. Steamboat is huffing with an occational small spritz of water out of NV. Cistern Spring is barely overflowing on the south, west and backside. There is a trickle of water approaching the muddy pool. It's mainly overflowing out the established channel to the south. It has a mediocre boil. |
| 16295 |
28 Sep 2020 @ 0834 |
28 Sep 2020 @ 0848 |
bbev |
1D, 22hrs PE; Quietly steaming on cool 20° morning. Cistern also steamy. Can hear water and only able to see vigorous boiling by standing on middle rail in front of the spring. |
| 16291 |
27 Sep 2020 @ 1605 |
--- |
cb |
1D 5.5H PE. Steamboat is gently steaming and Cistern has completed drained. No sounds or steam on this chilly fall day! |
| 16277 |
26 Sep 2020 @ 1655 |
--- |
cb |
6H 20M in the eruption. SB is still roaring steam, no water and not as powerful as I've seen in the past at this time. |
| 16253 |
25 Sep 2020 @ 0830 |
25 Sep 2020 @ 1745 |
cb |
2 nice minors that could have lead to an eruption but NV just doesn't have the juice/umph/upsie to push through a good vertical minor to take it all the way to eruption. One at 1133 that put a solid 4.5 (5 is eruption)down the runoff at the footbridge and had many up on their feet shouting! Another at 1418 that could have been a start but just didn't have what it needed! Both had tall vertical SV that put a raging river down its runoff channel. Cistern Spring is still VERY low and overflowing only out of the established channel to the south. The scalloped edges and biscuits are WAY exposed. (1.5") Very chilly and windy day. |
| 16247 |
24 Sep 2020 @ 0730 |
24 Sep 2020 @ 1900 |
cb |
A good concerted minor at 0808 this morning that put a raging river down SV. Some events during the day that were mediocre. Activity picked up at 1630 with tall vertical NV and good SV runoff. 1745 nice CNVVSVH++ and another around 1830 as I was getting ready to leave. Cistern Spring water level is very low. It is only overflowing from the established channels to the south and on the backside. Most of the platform is dry where is is normally wet with overflow. Scalloped edges and biscuits around the edge of the pool are exposed. hum.... |
| 16245 |
24 Sep 2020 @ 0700 |
24 Sep 2020 @ 1710 |
bbev |
Some improvement from yesterday. Concerted vertical with heavy runoff every 1-3 hours, but nothing following other than angled minors with weak runoff. |
| 16234 |
22 Sep 2020 @ 0900 |
22 Sep 2020 @ 2000 |
cb |
SB had a few nice minors at 1144,1542 and a nice thick minor at 1829. Alot of concerted play again today with decent water levels as the day progressed. |
| 16223 |
21 Sep 2020 @ 1715 |
--- |
cb |
5D 5.5H. PE. SB SV runoff channel has water to Tantalus creek. Water has not reached the grassy knoll. Debris are still scattered all down SV channel. Frequent SV angled minors to 10'. NV angled and a few vertical bounces to 20'. A trickle of water down the back shoulder and the back runoff channel is damp. ~75% 0f the play is concerted. |
| 16216 |
21 Sep 2020 @ 0843 |
21 Sep 2020 @ 0903 |
bbev |
4D, 21hrs PE: very foggy this morning, SB grumbling, NV angled jetting to 20'. SV runoff damp. Can hear SV splashing with trickle coming down runoff. Trickle of runoff at bridge, with water making its way down middle channel below the bridge. Trough mostly clear of gravel, with some build up just under the bridge. Difficult to see, but l do not think there is any water on shoulder or back channel. Cistern just lapping at scalloped edges of pool. |
| 16204 |
20 Sep 2020 @ 0944 |
20 Sep 2020 @ 1030 |
cb |
3D 22H PE. Steamboat is lightly grumbling and steamy. SV runoff channel has a very thin area of dampness that extends about 10' from the vent. (most likely from rain last night) 1 NV splash during my observation. Nothing from SV. |
| 16190 |
19 Sep 2020 @ 0915 |
--- |
cb |
2D21.5H PE. Steamboat is gently steaming and the platform is bone dry. (observed before the rain has started) Cistern Spring is overflowing to the south, backside and into the muddy pool but not to the NW toward Veteran. (looks to be in early overflow.) |
| 16140 |
15 Sep 2020 @ 1812 |
--- |
Graham |
At least 4 vertical surges between 0715 and 1945 with the strongest activity ~1400. Runoff has been fine. It just hasn't erupted yet. |
| 16137 |
14 Sep 2020 @ 1941 |
--- |
Graham |
Several good pushes and vertical. North vent dominated. It has potential to erupt whenever it wants or not. |
| 16124 |
14 Sep 2020 @ 0833 |
--- |
bbev |
4D, 17.5hrs SV runoff a steady, light flow. Back shoulder and back runoff have water. Strong, tall, angled 25' NV when l arrived. SV active to 15-20'. Runoff at steerage is light and trough is unchanged from yesterday morning. Real smokey again today |
| 16114 |
13 Sep 2020 @ 1730 |
--- |
cb |
4D2.5H.PE. SV runoff channel is damp and still has lots of debris scattered in the channel. Back shoulder/channel, Jabba, ET are bone dry. SV runoff channel at the foot bridge is dry as far up the channel as I can see. Some angled, wispy 15' - 25' NV jets. Occational SV angled, 10' jets. Some concerted but not much water in either. Cistern Spring is the same as this morning. |
| 16098 |
13 Sep 2020 @ 0831 |
13 Sep 2020 @ 0857 |
bbev |
3D, 17.5hrs PE: Some splashing from NV. Trickle coming down SV channel, with very little splashing out of the vent. No water on back shoulder or back channel. Channel is dry at steerage and trough is mostly empty of gravel. Cistern overflowing into muddy pool and just covering scalloped edges. Smokey today! |
| 16089 |
12 Sep 2020 @ 1700 |
--- |
cb |
3D2H PE. No change since this mornings report. |
| 16087 |
12 Sep 2020 @ 1130 |
--- |
cb |
2D20.5H PE. SB is gently huffing. Entire platform bone dry. Did see 1 very small SV splash. Cistern Spring is in overflow on all sides with a moderate boil. |
| 16051 |
11 Sep 2020 @ 0850 |
--- |
cb |
1D17H PE. SB platform is dry. Cistern Spring is rising. Just starting to refill. water level still WAY down in the tube. Not visable because of steam and water depth so far down in the tube but I can hear the boil. |
| 16024 |
08 Sep 2020 @ 0630 |
08 Sep 2020 @ 1950 |
Graham |
Nothing exciting again today or rwported last night. South Vent did improve and join in with North after around 1600. Nothing vertical though. |
| 16025 |
08 Sep 2020 @ 0800 |
08 Sep 2020 @ 1930 |
cb |
NV seemed to dominate the day with nothing but angled jetting. No vertical play except for a very slight spray around 1700ish. SV was hard to view from any angle for most of the day due to the cold, snowy, steamy conditions that blew SB steam toward the platforms and down toward the foot bridge. SV play & runoff picked up around 1530 with some better runoff and loud percussive grumbling. NV continued its nearly constant play till I left at 1930. |
| 16026 |
08 Sep 2020 @ 1200 |
08 Sep 2020 @ 1900 |
underarockphoto |
You know the Fan and Mortar notes “angle never quit”?
North essentially didn’t stop for several hours. Nearly perpetual angled jetting that alternated between wispy and heavy. Pauses occasionally. One seasoned observer likened it to “wild phase” activity just bleeding energy off the system all day. Absolutely NO signs of a disturbance. |
| 16023 |
08 Sep 2020 @ 1220 |
08 Sep 2020 @ 1515 |
bbev |
Very little water out of SV. NV was all angled and l saw no vertical from either vent. Someone said, "lt looks like it is stuck"! |
| 16020 |
08 Sep 2020 @ 0945 |
08 Sep 2020 @ 1215 |
jkgood |
Didn’t observe anything truly attention grabbing all morning. Best wishes y’all! |
| 16016 |
07 Sep 2020 @ 0600 |
07 Sep 2020 @ 1800 |
Graham |
No minors strong enough to get anyone excited. Left before dark due to the snow. |
| 16011 |
07 Sep 2020 @ 1600 |
--- |
Kitt B |
No Steamboat as off 1600. Weather started deteriorating around 1500 switching from rain to sleet to snow with steam from the geyser heading either toward the main platform or toward the bridge. Viability was poor most of the afternoon. Saw continuous line of vehicles from Madison intersection to Fountain Flats due to a small herd near the road plus one lone bison in the canyon. |
| 16014 |
07 Sep 2020 @ 0000 |
07 Sep 2020 @ 0630 |
underarockphoto |
Steamboat continued its activity over night. At 0047 and 0048 a large minor event got Ben and I’d attention. NV was vertical and sustained around 40’ with SV dumping enough water to move most gravel out of the runoff. This event repeated at 0114. Somewhere around 0420 while Hope Brooks and I were surveying baselines at Decker Island and Decker 2 another minor put enough water to cover the grassy knoll. At 0400 the wind shifted and I moved from the Upper platform to Steerage to avoid being clobbered by a surprise eruption. Runoff was a steady babbling brook from 0430 to around 0615 at which time it began slowly dropping to a trickle.
The behavior pattern where SV would build in size and volume over the span of an hour, ending in a large concerted minor eruption (usually angled but sometimes vertical) happened four times with the ending minors happening at 0048, 0213, 0330, and 0430. By 0700 this pattern seemed largely gone. It was very easily noticeable from the upper platform by watching the steam in SVs runoff gradually increase in volume and length towards steerage.
On a tangential note: the night sit was wonderful, warm and dry. The moon lit everything up, and some passing meteor shower produced large and slow fireballs once every ten to twenty minutes. |
| 16015 |
06 Sep 2020 @ 0800 |
06 Sep 2020 @ 2359 |
underarockphoto |
At 0800 runoff at Steerage was barely a trickle and the runoff only went a few yards past the bridge. By 0900 the runoff had widened considerably and around 1100 there was finally a minor which fully wet the runoff channels and moved debris. NV rapidly began producing large minors with semi-frequent thick and vertical minors - but SV was no where to be found. SV slowly began increasing in volume throughout the day. A cycle developed where NV appeared to be in control, dragging SV along with it. This cycle ended abruptly around 1900 when SV apparently decided it was ready to play and there were three consecutive minors where SV was fountaining up to 35’ and North had repeated vertical surges. Ben and I moved to Decker after this to be in position to measure the starting surge just in case. For the next five hours minors were well defined and promising enough that we stayed well after dark. The cycle of NV pulling along SV ended after the minors of 1900 and it appeared SV was in control and dragging along NV with it in a cycle that progressed in definition over the next several hours. Minors that appeared capable of initiating an erupting occurred around 1900, 20:35, and 23:00. None had any follow ups.
The observations in these comments are entirely my own and do not reflect the observations of all present obsevers. They are posted solely for historical documentation. Any use by the reader is solely at their own discretion and choice. |
| 15996 |
06 Sep 2020 @ 0700 |
06 Sep 2020 @ 0715 |
SteveO |
Weak jetting from NV & SV. Runoff channel wet to 20' past the bridge, just a little trickle coming down. |
| 15986 |
05 Sep 2020 @ 1914 |
--- |
cb |
3D22h40M. PE. SV runoff is damp 30' down the channel from the vent. DAMP is the key word here. SV channel at the foot bridge is DRY! Back shoulder is dry as is the back channel, ET & Jabba. Some occasional minor splashing out of both vents. SV 5' wispy splash. NV Angled 10' - 15' wispy jet. Sounds very "airy" much like this time last interval. Cistern Spring is overflowing on all sides with a weak (flooded) boil. |
| 16010 |
05 Sep 2020 @ 0904 |
05 Sep 2020 @ 1007 |
underarockphoto |
SUMMARY: Steamboat is slowly waking up with wispy angled North Vent jets to 20-40' and South to 6'. Minors are distinct with periods of quiet between them. Minors tend to begin with grumbling huffs. Water is slowly starting down the runoff channel. No signs of a disturbance.
Original Notes
0904, Emerald, clear and calm
0907, NV, angled and wispy, 10ft
0913, NV, wispy and angled, 10ft
0914, Cistern, light boil overflow on all three sides
0916, NV wispy jets. Again at 0917, 0920
0918, Crater Spring, clear and calm
0919, Tantalus, clear and calm
0926, SV 2ft wisp
0929, NV angled to 20ft and SV to 3ft
0935, SV wisp
0940, water slowly going down runoff channel
0941, angled NV to 10ft
0947, NV vertical to 40ft no SV
0954, angled NV to 30ft SV to 4
1007, NV angled to 40ft SV to 8ft runoff 'front' pushed a foot. |
| 15968 |
05 Sep 2020 @ 0850 |
--- |
bbev |
3D 12hrs pe: SB quiet, only spritz jetting from NV seen once during brief observation. SV channel bone dry. |
| 15961 |
04 Sep 2020 @ 1934 |
--- |
cb |
2D23H PE. Steamboat is gently steaming. Entire platform is dry. Cistern Spring is overflowing on all sides. |
| 15942 |
03 Sep 2020 @ 1805 |
--- |
cb |
1D21.5H PE. Steamboat is gently steaming. Platform completely dry. Cistern Spring is filling and the water level ~1.5' below the inner tube rim. It has a 1 point blue-ping :) (blooping) boil! |
| 16850 |
01 Sep 2020 @ 1000 |
01 Sep 2020 @ 2030 |
Tara |
Observations started at ~5d16h PE. After decent runoff between 1000-1100, activity weakened. There was a moderate push midday with good overflows (4 on steerage scale with debris wash) at 1330 and 1343 following NVV minors. After this, isolated NVV minors at 1428, 1623, and 1729 produced decent overflow (3-3.5 on steerage scale) but did not sustain. I left for the parking lot at 1910 and did not return until 2000, but nothing of note was reported by others during that time. Minors were weak from 2000 right up until 2033 when the eruption sequence started. |
| 15926 |
31 Aug 2020 @ 1950 |
--- |
cb |
5D2H15m PE. Steamboat has improved a bit from this morning. SV runoff channel has water flowing to the footbridge. The debris has moved ~10' down from the vent and is in small groupings directly across from the middle platform. Not enough strong minors to push them down to the trough yet. SV had a few 5' splashes and NV had some angled 25' jets, some that were "airy" and others that had more water in them but all in all the platform was not very impressive tonight. See what tomorrow brings! |
| 15907 |
31 Aug 2020 @ 0916 |
--- |
cb |
4D15H40m PE. SV runoff channel is wet but no water running down the channel and it still has lots of debris in it from the last eruption. The rain/snow had just started when I arrived. Looks like some overnight minors have dampened SV channel yet I didn't see much out of either vent in the 15 minutes I was there. SV had 1 small splash and one NV 10' angled, airy, mostly steamy jet. |
| 15900 |
30 Aug 2020 @ 1721 |
30 Aug 2020 @ 1741 |
cb |
4D PE. So...Platform and all vents, runoff channels, ET, Jabba are all bone dry! Some mild grumbling with an occational SV puffball, airy, 3' splash. Nothing out of NV but occational airy, wispy pushes of steam. |
| 15896 |
30 Aug 2020 @ 1006 |
30 Aug 2020 @ 1040 |
cb |
3D16.5H PE. SB is starting to grumble with occational huffs of steam. no water in either vent yet. Entire platform is dry. @ 1032 there was a small angled jet from NV & @ 1035 a concerted 15' angled jet from NV with 5' SV. Again @ 1038. Water is back into the system! Cistern Spring is overflowing on all sides with a vigorous boil. It is an opalescent turquoise blue color. |
| 15799 |
29 Aug 2020 @ 1320 |
29 Aug 2020 @ 1436 |
cb |
2D 21H PE. Platform and vents are dry. Cistern Spring is overflowing on the south end (toward Echinis) and over the blackside. Just BARELY a trickle over NW side (toward Veteran). Pool is clear blue in color with a moderate boil. |
| 15764 |
28 Aug 2020 @ 1136 |
--- |
cb |
1D18H PE. STEAMBOAT is gently steaming. Platform is dry. Cistern Spring is on the rise. water level is not visable yet, (~9' below the rim of the inner tube.) It is very steamy and has an audible roiling, vigorous boil that is putting up an impressive steam cloud. |
| 15735 |
26 Aug 2020 @ 2112 |
--- |
hurleyintjl |
Left at 2045, no pauses or restarts observed |
| 15728 |
25 Aug 2020 @ 2045 |
--- |
Tara |
NO Steamboat yet as of this time. Many isolated strong minors throughout the day, many folks left at 2030 as a storm moved into the Norris area. |
| 15721 |
23 Aug 2020 @ 1700 |
23 Aug 2020 @ 1715 |
cb |
SB platform is still dry as a bone! Some very weak angled play from both vents. SV - 5', NV - 8'. No water in SV runoff channel at all. Cistern Spring is in overflow with a mediocre boil. 1815 walked by again and SV has 5' thin trail of water/dampness that is just starting to extend down from the vent. Back Shoulder, back channel, Jabba all bone dry. |
| 15694 |
23 Aug 2020 @ 0623 |
23 Aug 2020 @ 0634 |
ypcaribou |
Two whispy, short, angled, random NV. Mostly just huffing. Vents just barely wet. channel bone dry. Cistern in overflow and a milky blue. |
| 15683 |
22 Aug 2020 @ 1549 |
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cb |
2D13H PE. Platform is dry and SB is gently steaming. no water or sounds. Cistern Spring is in overflow with a weak boil |
| 15674 |
21 Aug 2020 @ 2004 |
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cb |
1D17H PE. SB is gently huffing. Cistern spring is 6' below overflow |
| 15660 |
20 Aug 2020 @ 1724 |
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cb |
14H 24M PE. SB is huffing steam from both vents. no water and platform is completely dry. Cistern Spring's pool is down ~1.5' from the rim of the inner tube. The pool is calm and a opalescent steel blue color. |
| 15654 |
19 Aug 2020 @ 1000 |
19 Aug 2020 @ 2000 |
cb |
5D5H PE. Water levels improved exponentially overnight and we had some nice minors with good runoff throughout the day. One minor that started just as a thunderstorm was passing us and it got many of us up on our feet coaching it to start but alas, it did not. Good minors after that but "no Steamboat yet". |
| 15638 |
18 Aug 2020 @ 1000 |
18 Aug 2020 @ 1030 |
cb |
SB is just starting to get water into the platform. Only 1 CNVSV minor that had a small amount of water discharged @ 1024. SV runoff channel is damp ~30' down the channel as viewed from the middle deck. SV channel is bone dry at the foot bridge looking up the channel toward the vents. Back shoulder and back channels are bone dry. @ 1330 SV water had still not reached the foot bridge. @1712 SV runoff channel has a THIN trickle of water at foot bridge. At middle deck some CNVSV minors that put a wee bit of water down the channel but not enough to move the small rocks and debris at all. Back shoulder has a few thin, damp areas but not much and zero water in the back channel. **FYI the Norris basin, parking lot and road will be closed at 1800 tonight thru ~1000 tomorrow morning to move new exhibits into the museum. Please be considerate of this closure! |
| 15630 |
17 Aug 2020 @ 1927 |
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cb |
3D 4H PE. Steamboats platform has not changed much since yesterday evening. Some wispy minor play from NV (one 5' angled jet) and 1 SV 2' spray. The whole platform is completely dry! Cistern Spring is overflowing in all directions with a vigorous boil |
| 15617 |
17 Aug 2020 @ 0749 |
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bbev |
2D, 16hrs PE; Quiet and steaming on cool morning. Runoff channel bone dry, no water seen. |
| 15612 |
16 Aug 2020 @ 1859 |
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cb |
2D3.5H PE. SB is quietly steaming. A faint gurgling sound from NV. No water in the platform yet. Cistern Spring is in overflow with average boil and it is a cloudy turquoise color. FYI, the no-see-ums and deer flies are out in force! |
| 15594 |
16 Aug 2020 @ 0840 |
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cb |
1D17H PE. STEAMBOAT is gently steaming away. no water yet. platform dry. slight grumbling. Cistern Spring is refilling and the pool is ~1' below the inner tube rim. It has a vigorous boil. |
| 15572 |
14 Aug 2020 @ 1945 |
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ypcaribou |
4h 15m PE (approx) - Steam cloud barely visible above ttees from Elk Park. |
| 15500 |
10 Aug 2020 @ 1500 |
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William |
16h PE: Steadily billowing fluffy steam with occasional weak puffs out of NV. Some water still pooled in the runoff as viewed from middle deck. Cistern is 1.5-2' below the inner tube, with a bright blue color. Wind direction caused the area of boardwalk between Cistern and the bench before Steerage to be coated with .25" of pine needles and dirt. Muddy pool is particularly full with water. |
| 15498 |
10 Aug 2020 @ 0800 |
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KarlH |
9 hrs post eruption, constant water erupting to 50-70 feet from NV, 20-30 feet from SV. |
| 15468 |
09 Aug 2020 @ 0600 |
09 Aug 2020 @ 1230 |
jkgood |
Activity seems largely the same as yesterday so far. A single nice minor at ~11:30, and seemed to perk up a bit afterward, some good grumbles and pops. Had to head out hope it lights up for y’all! |
| 15453 |
07 Aug 2020 @ 1200 |
07 Aug 2020 @ 2110 |
cb |
Steamboat was really lackluster this afternoon. SV had not moved the small piles of pepples down the SV channel that were from the previous eruption. Play from both vents improved around 1600. Taller more sustained jetting from both vents, a few were vertical, that produced some babbling brooks. Cistern Spring has a VIGOROUS boil and overflowing on all sides. |
| 15456 |
07 Aug 2020 @ 0900 |
07 Aug 2020 @ 2000 |
KarlH |
Overall a quiet day at Steamboat. The quiet overflow previously reported was the rule of the day, with some activity picking up around 1400 and about every two hours after that. Between 1600 and 1700 there were some minors that started to move a little of the gravel at the top of the runoff channel, but even that remained when the Hoppes left around 2000. Best activity of the day to that point was the last hour, but vertical activity was essentially non existent today. |
| 15422 |
07 Aug 2020 @ 0620 |
07 Aug 2020 @ 0740 |
Suzanne |
South Vent minors producing light runoff in the channel. Occasional angled thin splashing from North. Nothing voluminous yet. |
| 15420 |
06 Aug 2020 @ 1500 |
06 Aug 2020 @ 1700 |
KarlH |
Runoff channels dry. I would describe minor activity as quite whispy. |
| 15393 |
05 Aug 2020 @ 2003 |
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cb |
2D10H PE. SB platform is completely dry. Some gentle grumbling with some huffing. Cistern Spring is in overflow with a vigorous boil. |