| Date: | 2020-05-20 |
| Time: | 1827 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 5m04s |
| Standardized Duration: | 5m 4s |
| Time Entered: | 2020-05-20 18:27:31 |
| Time Updated: | 2020-05-20 18:36:38 |
| Time Uploaded: | 2020-05-20 18:36:40 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1802 | NPS 1835; had big preplay @ 1810 which would have started an eruption under different circumstances |