| Date: | 2021-09-21 |
| Time: | 1542 A |
| Geyser: | Old Faithful |
| Webcam: | No |
| Initial: | No |
| Long/Short: | Long |
| Duration: | |
| Time Entered: | 2021-09-21 15:52:23 |
| Time Uploaded: | 2021-09-21 16:01:54 |
| Entrant: | STS |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | Subtracting 97 minutes from new NPS prediction 1719 |