| Date: | 2021-04-17 |
| Time: | 1146:35 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 4m02s |
| Standardized Duration: | 4m 2s |
| Time Entered: | 2021-04-17 11:46:50 |
| Time Updated: | 2021-04-17 11:55:26 |
| Time Uploaded: | 2021-04-17 11:55:27 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1151 | NPS 1147; spray from 1150:37-onw |