| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 23522 |
01 Sep 2022 @ 0940 |
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aferrara |
No eruption overnight. Nothing abnormal to report. |
| 23486 |
30 Aug 2022 @ 2000 |
30 Aug 2022 @ 2035 |
Art |
Thanks to Mark Wolf for posting the note earlier in the day. Went out and took a look from 1600-1630 and then again from 2000-2030. Excelsior is having sizzling boils, some strong enough to put out waves across the pool. The boils are coming from about 3-5 areas in the center of the pool with the strongest boils in the South West corner near the "beach/alcove". They come from each vent independently and not in concert. Most boils are around 1-2' (.3m-.6m) but occasionally a strong boil will happen, lasting 15 seconds to a height of 4-6 feet (1.2m-1.8m). These stronger boils push waves across the pool even with a strong wind. |
| 23482 |
30 Aug 2022 @ 1000 |
30 Aug 2022 @ 1150 |
mwolf |
frequent large boils heard, some causing significant waves. around 1130, observed a few of the boils visually, one estimated 3-4 ft. two main boil areas. edge vents on south side boiling vigorously. most activity ive observed in the two summers of coming at least once a week. |
| 6298 |
12 Sep 2017 @ 1224 |
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User34 |
Frequent boiling episodes from the center lasting a few seconds each, mostly to 1-2 feet but some as high as 5 feet |
| 4130 |
14 May 2017 @ 0626 |
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ypcaribou |
Audible and visible "boil up" splash toward middle of pool that lasted a few seconds. |
| 1105 |
14 Jul 2014 @ 2300 |
14 Jul 2014 @ 2359 |
WillBoekel |
Was heard doing some infrequent boils that sounded much like crested pool boils at about midnight. |
| 12714 |
14 Aug 1994 @ 1734 |
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JarnoO |
1 meter boils |