| Date: | 2019-05-24 |
| Time: | 1512 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | 4m01s < d < 4m24s |
| Time Entered: | 2019-05-24 15:13:30 |
| Time Updated: | 2019-05-24 15:17:50 |
| Time Uploaded: | 2019-05-24 15:17:50 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1513 | NPS 1510; ~30s continuous preplay leading up to eruption starting @ 1512(:51) |