| Date: | 2018-12-21 |
| Time: | 1152 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | ~4m00s |
| Standardized Duration: | ~4m 0s |
| Time Entered: | 2018-12-21 11:53:06 |
| Time Updated: | 2018-12-21 11:57:10 |
| Time Uploaded: | 2019-05-13 21:45:20 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT 1159 | NPS 1156 |