| Date: | 2021-05-20 |
| Time: | 1200 |
| Geyser: | Whirligig |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 4m49s |
| Standardized Duration: | 4m 49s |
| Time Entered: | 2021-05-20 13:16:23 |
| Time Updated: | 2021-05-20 16:56:57 |
| Time Uploaded: | 2021-05-20 16:57:07 |
| Entrant: | Skookum |
| Observer: | |
| Submitted to: | GeyserTimes for iOS |
| Comments: | Great eruption with wide, rapid bursting up to eight feet. Deep drain following eruption with roughly one hour to following overflow. Left basin at 1430 with no additional eruption observed. |