| Date: | 2020-10-03 |
| Time: | 0848 |
| Geyser: | Three Sisters |
| Webcam: | Yes |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2020-10-03 08:57:07 |
| Time Updated: | 2020-10-03 08:58:31 |
| Time Uploaded: | 2020-10-03 08:58:33 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Some vent in the Three Sisters had action which caused the roadway runoff te become very steamy. May have been big action by MYR-1, but steam made it impossible to tell. Did not appear to have its origin at Mugwump, but again steam makes it difficult. |