| Date: | 2021-08-26 |
| Time: | 1717:22 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 4m27s |
| Standardized Duration: | 4m 27s |
| Time Entered: | 2021-08-26 17:17:46 |
| Time Updated: | 2021-08-26 17:27:29 |
| Time Uploaded: | 2021-08-26 17:27:32 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1710 | NPS 1718; large preplay 1712 going into 1713; followed by light spray |