| Date: | 2019-12-21 |
| Time: | 0834 ns |
| Geyser: | Castle |
| Webcam: | Yes |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | |
| Time Entered: | 2019-12-21 08:46:12 |
| Time Updated: | 2019-12-21 08:59:04 |
| Time Uploaded: | 2019-12-21 08:59:05 |
| Entrant: | CraigC |
| Observer: | JoeN, LindaG and myself |
| Submitted to: | Geysertimes.org |
| Comments: | Observed significant steam rise above the fog at 0834, but then visibility worsened until 0842 when water spikes became visible. |