| Date: | 2021-07-31 |
| Time: | 1431 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | |
| Time Entered: | 2021-07-31 14:31:57 |
| Time Updated: | 2021-07-31 16:09:24 |
| Time Uploaded: | 2021-07-31 16:09:24 |
| Entrant: | Kat |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | GT and NPS prediction 14:27 |