| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 15984 |
04 Sep 2020 @ 1149 |
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Janet Jones |
Drowned out by overflow from Rainbow Pool (as I have seen every time I've visited this year). |
| 11288 |
11 May 2019 @ 1150 |
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Siegmund |
Did not see Handkerchief erupt during ~3 hours starting 1150 today, nor any other time on the 12th or 13th. |
| 10377 |
18 Sep 2018 @ 1650 |
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Siegmund |
Not IE any time I was at Black Sand Basin, 16-20 Sep 2018. (Longest observation period was today 1647-1805.) |
| 9413 |
02 Aug 2018 @ 1543 |
--- |
JSJ |
Not erupting. Light pulsing with concentric ripples radiating outward from pool center. |
| 8607 |
09 Jun 2018 @ 1954 |
--- |
JSJ |
Not erupting. Lightly roiling. |
| 8555 |
02 Jun 2018 @ 0743 |
02 Jun 2018 @ 1906 |
Siegmund |
Handkerchief was silent during several drivebys on June 1st and 2nd, and during a 3-hour sit on June 4th. The water level in the crater near the boardwalk, which rises and falls when Handkerchief erupts, was the same (bubbling gently and ~10cm below overflow) every time I checked it. I suspect Handkerchief is dormant this season. |
| 3724 |
27 Sep 2016 @ 1002 |
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WillBoekel |
Stopped erupting. |
| 3279 |
09 Jul 2016 @ 1615 |
--- |
JSJ |
Intermittent low splashing at 1615. Nothing more for the rest of the afternoon. No eruption or splashing in the late morning to 1615 either. |
| 3310 |
02 Jun 2016 @ 1230 |
02 Jun 2016 @ 1345 |
JSJ |
Not erupting. |