| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 37862 |
31 Oct 2024 @ 0857 |
--- |
MAB |
ping pong size bubbles nearer center of pool area - shoulder vent steaming |
| 37709 |
24 Oct 2024 @ 1149 |
--- |
SantaFe108 |
~2ft below rock, boiling from multiple points. Sidewall Vent gently steaming. |
| 37506 |
10 Oct 2024 @ 1316 |
--- |
SantaFe108 |
1.5' below rock, bubbling all over the place. Sidewall Vent quietly emitting steam. |
| 37349 |
03 Oct 2024 @ 1014 |
--- |
SantaFe108 |
Sidewall Vent gently forcing steam, water level ~2ft below rock and bubbling from multiple spots. |
| 35349 |
19 Jun 2024 @ 1144 |
--- |
Craigmon99 |
Boiling lazily |
| 35350 |
19 Jun 2024 @ 1144 |
--- |
Craigmon99 |
Boiling lazily |
| 35071 |
10 Jun 2024 @ 0931 |
--- |
SantaFe108 |
Low, boulder in middle almost entirely exposed. Sidewall vent gently forcing steam. |
| 29047 |
22 Oct 2023 @ 1305 |
--- |
SantaFe108 |
Rippling and bubbling all over the pool. Murky gray color. |
| 28987 |
21 Oct 2023 @ 1605 |
--- |
JR |
Gentle steam |
| 28909 |
20 Oct 2023 @ 1106 |
--- |
MAB |
agitated ripples from bubbles in many spots - too steamy to really see color |
| 28850 |
17 Oct 2023 @ 1607 |
--- |
MAB |
murky |
| 29094 |
01 Aug 2022 @ 1200 |
--- |
research-mab |
8/01/2022 - no time noted - Hurricane Vent turning blue |
| 22855 |
26 Jul 2022 @ 1154 |
--- |
cb |
steamy but no activity. water at the base is at the same level its been for a few weeks |
| 29085 |
16 Jul 2022 @ 1200 |
--- |
research-mab |
no time noted - 7/16
Hurricane Vent and Scummy Pool don’t seem as dark brown. Maybe changing color |
| 22528 |
12 Jul 2022 @ 1609 |
--- |
cb |
pool is ~3" higher |
| 22353 |
06 Jul 2022 @ 1011 |
--- |
cb |
Has more water in the pool than ive seen lately. The dry caked mud at the bottom of the pool is partially covered in water and it has areas beneath the vent and on the edge toward Congress that have a small roiling boil. Also the color milk chocolate. |
| 22167 |
27 Jun 2022 @ 1116 |
--- |
MAB |
water level in pool dropped quite a bit exposing deep mud cracked areas on E & W ends of pool |
| 29073 |
18 Jun 2022 @ 1200 |
--- |
research-mab |
6/18 Post Flood: - no time noted - Hurricane Vent water level super low & muddy! |
| 21210 |
06 May 2022 @ 1140 |
--- |
MAB |
some chunks have sloughed off of the shoulder vent - will compare photos from previous years - haven't yet stood there during its cycle to see if more or less water is spritzing out than other years but now am interested and will do that |
| 16493 |
30 Oct 2020 @ 1459 |
--- |
steve |
The side vent is steaming with no water. |
| 29147 |
16 Jun 2020 @ 1129 |
--- |
research-mab |
According to The Geysers of Yellowstone 5th edition, “Hurricane Sidewall Vent: has been noted to spray several feet high since 2015. This was my first time witnessing it! 11:29 AM – J McIlwain |
| 14600 |
11 Jun 2020 @ 1645 |
--- |
cb |
Vent is gently steaming. pool is low, the rock in the pool is 1.5' exposed and water is a clear blue color |
| 11017 |
20 Apr 2019 @ 0945 |
20 Apr 2019 @ 0950 |
MAB |
Very forceful water sprays and roaring steam from the north shoulder vent, moreso than last year, and in series. Water seen 945, 947, 949, and brief at 950. The crack is enlarged more to the east. |
| 29569 |
05 Jun 2016 @ 1200 |
--- |
research-mab |
6/5/2016 - no time - 2-3 ft “eruption” plus a lot of & steam and noise from a vent on the southwest corner of Hurricane Vent |
| 29458 |
08 Aug 2012 @ 1345 |
--- |
research-mab |
8/8/2012 Hurricane Steam Vent loud, visible steam that died away and became quiet as I watched at 1345 |
| 29818 |
18 Aug 2004 @ 1200 |
--- |
research-mab |
9/18/2004 Disturbance Day! - no time noted - This morning on rove, I noticed some disturbance behavior! - Hurricane Vent is turbid |
| 29961 |
29 Aug 1998 @ 1408 |
29 Aug 1998 @ 1439 |
research-mab |
8/29/1998 Hurricane Vent 208 210 214 239 – may have been more but had to keep walk moving |
| 29959 |
21 Aug 1998 @ 1517 |
--- |
research-mab |
8/21/1998 Hurricane Vent – 1517 roaring noise from 3 vents |
| 29958 |
21 Aug 1998 @ 1426 |
21 Aug 1998 @ 1440 |
research-mab |
8/21/1998 Hurricane Vent – 14:26. 14:28. 1431, 1433, 1436, 1440, (Rebecca saw) |
| 29957 |
20 Aug 1998 @ 1840 |
--- |
research-mab |
8/20 Hurricane Vent strong hissing/howling release from 3 vents at 640 p for about 1m |
| 29956 |
15 Aug 1998 @ 1408 |
--- |
research-mab |
8-15/1998 I saw Hurricane Vent erupt again today! It was at 208 pm – for 2 min. The process was the same as I mentioned earlier (back 5 pages) I was quite excited, just as before! |
| 29955 |
16 Jul 1998 @ 1609 |
--- |
research-mab |
7/16/1998 I saw Hurricane Vent erupt! For the first time this year at least for me. At 409pm for 1 min there was heavier steaming from vent on ledge NE of pool – it was roaring too then it began to get quieter and section of rock along that edge of the pool were wet and there was a wave and ripples moving across the pool from the direction of the vent. |
| 29970 |
07 Jul 1997 @ 1200 |
--- |
research-mab |
7/7/1997 - no time noted - Water in Hurricane Vent is low (~6-9 in) |
| 30031 |
19 Jun 1996 @ 1200 |
--- |
research-mab |
6/19/1996 - no time noted - Hurricane Vent seems inactive but Congress pool is the most active that I have seen. |
| 30146 |
26 Sep 1995 @ 1200 |
--- |
research-mab |
9/26/1995 - no times noted - A quick heads up to observe Hurricane Vents “backwards” eruptions. It is having a series of 2-5 eruptions about 2 minutes apart. I have not observed a closed interval between this series. It is a lot of fun to watch |
| 30056 |
15 Jun 1995 @ 1200 |
--- |
research-mab |
6/15/1995 - no time noted - New breakout by Hurricane – to west in duff near (dead) brown tree |
| 30191 |
31 Aug 1994 @ 1200 |
--- |
research-mab |
8/31/1994 - no time noted - After the Ledge eruption... Hurricane Vent has started an interesting eruptive pattern – first noticed Fri or Sat. There is a steam vent on the NE side of slope which will release a great amount of steam for 30 sec. After which water flows from a small 1” x 1/2” (?) square vent below the steamvent quite near the pool level. The rock around the water run off area is black in color – the water flows for 30 sec or so… Have seen series of eruptions & also single eruptions an hour or so apart. |
| 30456 |
01 Sep 1992 @ 1030 |
--- |
research-mab |
9/1/1992 Saw Hurricane Vent erupt & overflow ~ 10:30 am |
| 30400 |
29 Jul 1992 @ 1515 |
--- |
research-mab |
7/29/1992 - inferred time based on other entries - Also note that I saw my first activity from Hurricane Vent for this season – seems to be steam and water every three minutes |
| 30314 |
26 Apr 1992 @ 1200 |
--- |
research-mab |
4/26/1992 - no time noted - Hurricane Vent – quiet |
| 30567 |
22 Jul 1991 @ 1200 |
--- |
research-mab |
7/22/1991 - no time noted - Hurricane Vent int ~2½ min |
| 30546 |
08 Jul 1991 @ 1200 |
--- |
research-mab |
7/8/1991 - no time noted - Hurricane Vent seems peculiarly quiet. |
| 30531 |
22 Jun 1991 @ 1200 |
--- |
research-mab |
6/22/91 - no time noted - Hurricane Vent is still steaming them overflowing frequently ie ~ 3-5 min. |
| 30508 |
16 May 1991 @ 1200 |
--- |
research-mab |
5/16/1991 - no time noted - Hurricane Vent – same as usual |
| 30687 |
27 Sep 1990 @ 1200 |
--- |
research-mab |
9/27 - no time noted - Hurricane Vent – very heavy water phase and heavy sulfur crystal build up around the vents |
| 30656 |
14 Aug 1990 @ 1200 |
--- |
research-mab |
8-14: - no time noted - Today was my 1st observation seeing Hurricane Vent steaming without subsequently spewing water. Is this normal? {handwritten reply above - ‘I’ve seen it a couple of times without water – but I think it is rare!} - Another Hurricane Vent w/o water phase {added} |
| 10863 |
23 Jun 1990 @ 1800 |
--- |
research-mab |
6/23/1990 Hurricane vent not showing water flow after steam for first time that I’ve noticed. |
| 30613 |
27 Apr 1990 @ 1200 |
--- |
research-mab |
4/27/1990 - no time noted - Hurricane Vent appears as frequent and interesting as always. |
| 10860 |
16 Sep 1989 @ 1800 |
--- |
research-mab |
9/16/1989
New fresh surface sulfur deposits at Crater Springs & Hurricane Vent. |
| 30736 |
07 Sep 1989 @ 1441 |
--- |
research-mab |
9/7/1989 - Hurricane Vent- bubbling in pool more intense and all across. 1441 steam eruption, 30 sec later water, end 1442. 1444 steam 1444:30 water. Water phase is longer and heavier than usual. - Colloidal Pool – very muddy at surface with intense bubbling. |
| 10862 |
06 Aug 1988 @ 1800 |
--- |
research-mab |
8/6/1988 Hurricane Vent In Porcelain Basin, Hurricane Vent has an upside down (for a geyser, that is) eruption. It’s eruption is preceded by increased steaming from the fumeroles to the north. After several minutes of increased steam, water overflows from a horizontal crack in the rock, which is about one foot long and about 1½ feet above the water level, on the north side. The water flows out for about 1-2 minutes. |
| 30806 |
03 Jul 1988 @ 1200 |
--- |
research-mab |
7/3/1988 - no time noted - Hurricane Vent has dropped about 6” in water level. It continues to have “water fall” eruptions out of the horizontal crack on the north west side of the rock wall. |
| 10861 |
02 Jul 1988 @ 1800 |
--- |
research-mab |
7/2/1988 Observations: Hurricane Vent has dropped about 6” in water level. It continues to have “water fall” eruptions out of the horizontal crack on the north west side of the rock wall. |
| 31047 |
19 Feb 1983 @ 1200 |
--- |
research-mab |
2/19/1983 - no time noted - Hurricane Vent 140º slightly turbid & calm |
| 31202 |
15 Jan 1982 @ 1200 |
--- |
research-mab |
January 15th, 1982 - no time noted -Hurricane Vent – 146º another low temp. This is a hard one to take a temp on in the winter so again it may be wrong. Blue-green slightly turbid calm H20
= = Colloidal Pool 178º bright blue slightly turbid & calm H20 |
| 31605 |
11 Dec 1981 @ 1200 |
--- |
research-mab |
Dec 11 1981 - no time noted - Hurricane Vent 140º grey/blue turbid water calm – temp is probably low since the ground was muddy and I wasn’t going to stick around long.
= Colloidal Pool 168º slightly turbid blue/green and calm |
| 31426 |
09 Jul 1981 @ 1200 |
--- |
research-mab |
Thurs July 9 - no time noted - Sunday is splashing 4’ beyond Hurricane Vent's name sign. And Hurricane Vent sure is down in level (about 1 foot) compared to 3 wks ago during our training. |
| 31823 |
29 May 1981 @ 1200 |
--- |
research-mab |
5-29-81 - no time noted - Water levels in Colloidal & Hurricane ↓75cm. |
| 31816 |
30 Sep 1980 @ 1200 |
--- |
research-mab |
9/30/80 - no time noted - Colloidal Pool + Hurricane Vent were muddy “swiss cheesy” which surprised me. |
| 31755 |
09 Sep 1980 @ 1200 |
--- |
research-mab |
Tuesday Sept 9 1980 - no time noted - Hurricane Vent – turbid, grey green, calm. No overflow 164°
= Colloidal Pool - blue, turbid water, overflowing 170° |
| 31615 |
08 Jun 1980 @ 1200 |
--- |
research-mab |
June 8 1980 - no time noted - Hurricane Vent – blue-grey, waterfall appears to have been inactive for a long time. 142ºF – calm.
= Colloidal Pool – lovely aquamarine color, calm 188ºF |
| 32029 |
14 Oct 1979 @ 1200 |
--- |
research-mab |
October 14 1979 - no time noted - Algae is beginning to grow again in the runoff channels of Porcelain basin. Colloidal Pool and Hurricane Vent have turned blue once again. |
| 31997 |
27 Sep 1979 @ 1200 |
--- |
research-mab |
September 27 1979 - no time noted - Hurricane Vent – 166ºF- calm, pale blue milky water
= Colloidal Pool – 192ºF – boiling to 1 foot. Opaque greyish yellow-green color |
| 10857 |
20 Sep 1979 @ 1800 |
--- |
research-mab |
09/20/1979
Hurricane Vent – The floating sign has been removed, Hmm? Anyone counted to see if all our maintenance staff is alive. Hurricane Vent appears unchanged at 169ºF. Waterfall not erupting at observation.
= Colloidal Pool – muddy-brown grey boiling in three locations to one foot. All trace of its beautiful blue color gone. 192ºF |
| 31918 |
03 Sep 1979 @ 1200 |
--- |
research-mab |
Sept 3 1979 - no time noted - Colloidal Pool boiling vigorously, cloudy water. Hurahh! It finally lived up to its name this summer. |
| 10856 |
23 Aug 1979 @ 1800 |
--- |
research-mab |
08/23/1979 Nice waterfall in Hurricane Vent today at 1200 pm |
| 31880 |
28 Jul 1979 @ 1200 |
--- |
research-mab |
July 28 1979 - no time noted - Hurricane Vent 160ºF (Steamvent beside Hurricane Vent -western side – 200ºF) Waterfall starting again along horizontal crack on east side.
= Colloidal Pool 152º |
| 10855 |
09 Sep 1978 @ 1800 |
--- |
research-mab |
09/09/1978 Hurricane Vent – Grey, milky water – waterfall was active, dropping 1 foot to water level. Pool temp 156ºF |
| 32043 |
25 Mar 1978 @ 1200 |
--- |
research-mab |
March 25 1978 - no time noted - Hurricane Vent – low water level, little steam |
| 10853 |
31 Aug 1977 @ 1800 |
--- |
research-mab |
08/31/1977 Hurricane Vent’s level has declined 8-10” |
| 32292 |
28 Jul 1977 @ 1200 |
--- |
research-mab |
07/28/1977 - no time noted - Hurricane Vent – falls in on again off again cycle 152º
= Colloidal Pool 182° |
| 10854 |
07 Jul 1977 @ 1200 |
--- |
research-mab |
07/07/1977 - no time - Hurricane Vent’s water fall is back. |
| 10850 |
17 Sep 1976 @ 1800 |
--- |
research-mab |
09/17/1976 Hurricane Vent – the waterfall is pouring in much larger amounts of water. However, the level of the pool remains unchanged. |
| 32560 |
10 Sep 1976 @ 1200 |
--- |
research-mab |
09/10/1976 - no time noted - Hurricane Vent – water level down ~3”
= Colloidal Pool – has returned to its pre- Aug 31 activity |
| 10851 |
04 Sep 1976 @ 1200 |
--- |
research-mab |
09/04/1976 - no time - There is elemental sulphur being deposited around the steam vents above Hurricane Vent = At Colloidal, only the main boiling spot remains active.
The other 3 are seen occasionally, but only go 2-3’ high. |
| 10852 |
01 Sep 1976 @ 1200 |
--- |
research-mab |
09/01/1976- no time noted - Hurricane Vent – water level is being raised by increased output from the water fall issuing from the crack in the wall. |
| 32509 |
31 Aug 1976 @ 1200 |
--- |
research-mab |
08/31/1976 - no time noted - We are for sure in the grip of an end-of-the-season change! Porc Basin has gone bananas! Hurricane Vent is a light brown, no increase in activity.
= Colloidal Pool has gone crazy. There are 3-4 boiling spots, all of which are constantly going. The main one is “erupting” as high as 10 feet! This causes large waves to surge over the pool’s edge & under the boardwalk. |
| 10848 |
14 Jul 1976 @ 1800 |
--- |
research-mab |
07/14/1976 At Hurricane Vent, the little fumarole is much quieter of late. Water fall continues. |
| 10849 |
19 Jun 1976 @ 1800 |
--- |
research-mab |
06/19/1976 Hurricane Vent – first waterfall I have seen in a hot spring. The cracks in the Northeast side of the vent have enlarged over the winter. Water appears to be constantly flowing from a crack in the vent, dropping two feet to the pool at the base of the vent. |
| 10843 |
18 Aug 1975 @ 1800 |
--- |
research-mab |
08/18/1975 Hurricane Vent – pool at bottom of vent is beginning to bottom out. |
| 10844 |
06 Aug 1975 @ 1800 |
--- |
research-mab |
08/06/1975 Hurricane Vent is continuing to drop. The level of the pool in Hurricane Vent [h]as been dropping since the earthquake of June 30th, 1975 |
| 32616 |
06 Jul 1975 @ 1200 |
--- |
research-mab |
07/06/1975 - no time noted - Nuphar Lake down 1 ft along with Hurricane Vent & Congress Pool |
| 10845 |
05 Jul 1975 @ 1800 |
--- |
research-mab |
07/05/1975 Hurricane Vent - - the pool in the vent is dropping or has dropped about 10” |
| 10846 |
30 Jun 1975 @ 1733 |
--- |
research-mab |
06/30/1975 5:33 Hurricane Vent has refilled to normal level |
| 10847 |
30 Jun 1975 @ 1325 |
--- |
research-mab |
06/30/1975 New fractures in north side of Hurricane Vent. Hurricane Vent is draining 1:25 pm. Down about 2 ft. |
| 10842 |
07 Sep 1974 @ 1800 |
--- |
research-mab |
09/07/1974 Hurricane Vent – water level has dropped 3-4” |
| 10841 |
12 Apr 1973 @ 1800 |
--- |
research-mab |
04/12/1973 Hurricane Vent 180° – fumaroles near edge puffing vents along joint on NE side 200° |
| 10858 |
15 May 1972 @ 1800 |
--- |
research-mab |
05/15/1972 Hurricane Vent – blue gray water, no bubbling, sulfur crystals have vanished from steam vents {from last year} 169º |
| 10859 |
25 Sep 1971 @ 1800 |
--- |
research-mab |
09/25/1971 Hurricane Vent has a line of 1 inch high bright yellow sulphur crystals being deposited from steam vents near the top NE edge of the Hurricane pit. In that the crystals are long, relatively separate from each other, and are in sharp contrast to the brownish purple soil below, I can honestly say that this is one of the most beautiful sights that I have seen in the basin all summer. (RH) |
| 32940 |
11 Sep 1971 @ 1800 |
--- |
research-mab |
09/11/1971 - {afternoon temps 1430-1900} - Hurricane Vent 172° - no visual change last 6 weeks
= Colloidal 194° |
| 33204 |
31 Jul 1971 @ 1200 |
--- |
research-mab |
July 31 1971 - no time - Big change – water is a gray muddy color- a little more steam activity at the north side. Water 85C 185F |
| 33206 |
26 Jun 1969 @ 1200 |
--- |
research-mab |
1969- June 26 - no time - Water mildly gray to green in color. No bubbling action. 160ºF |
| 10839 |
16 Oct 1964 @ 1800 |
--- |
research-mab |
10/16/1964 Hurricane is quiet, gray & full. |
| 10838 |
09 Oct 1964 @ 1800 |
--- |
research-mab |
10/09/1964 Hurricane is very high at 185º. Seems as though there is a tunnel-like connection between Hurricane & Colloidal. The wave action of Colloidal has corresponding splashes at the north edge of the Hurricane. |
| 33088 |
09 Oct 1964 @ 1200 |
--- |
research-mab |
10/09/1964 - no time - Hurricane (Lewis temp) 169° - Oct 9 - 185° (high water) |
| 10837 |
05 Oct 1964 @ 1530 |
05 Oct 1964 @ 1630 |
research-mab |
10/05/1964
Porcelain Basin observed from 3:30 pm to 4:30 pm
Hurricane has gained back its original level (pre-Sept 25) & maybe more. It is murky gray. |
| 10836 |
04 Oct 1964 @ 1800 |
--- |
research-mab |
10/04/1964 Hurricane Vent has gained a foot or so of water as has the small ex-mudpot just east of Colloidal Pool. |
| 33591 |
03 Oct 1964 @ 1801 |
--- |
research-mab |
- no time noted - Hurricane Vent lost water at the same rate and time with Colloidal and was completely dry on October 3. It began to gain water on the 4th and was full again on the 5th. When the water was drained, tunnel could be seen which probably connects with Colloidal. |
| 10835 |
03 Oct 1964 @ 1800 |
--- |
research-mab |
10/03/1964 Hurricane Vent is completely dry. |
| 10840 |
30 Sep 1964 @ 1800 |
--- |
research-mab |
09/30/1964 Big Colloidal & Hurricane Vent have gained but not to original level. |