| Date: | 2021-08-16 |
| Time: | 0018 |
| Geyser: | Fan and Mortar Event Cycle |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2021-08-16 17:05:06 |
| Time Uploaded: | 2021-08-16 17:05:06 |
| Entrant: | Dan A |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | First MVS at 0018, river off 0020, frequent MVS until 0045, river on 0050, G on 0100, A on 0105, one good upper mortar surge around 0118 |