| Date: | 2019-07-04 |
| Time: | 0116 |
| Geyser: | Steamboat |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | 76min |
| Standardized Duration: | 1h 16m |
| Time Entered: | 2019-07-04 02:54:37 |
| Time Updated: | 2019-07-04 09:44:15 |
| Time Uploaded: | 2019-07-04 12:03:08 |
| Entrant: | William |
| Observer: | Ben, Lisa, Jody, Kevin and I. |
| Submitted to: | GeyserTimes for Android |
| Comments: | Observed "Pressure Cooker Mode" begin at 20:50 from steerage after a very strong single minor around 20:42 that sent significant runoff down SV channel. Very quiet from 21:15 until a long series of increasingly powerful minors began around 00:30. Minors began to pick up vertical action, follow up and water volume at 01:00. NV continuous water for at least 63min, SV tried to switch to steam as early as 01:42 but could not fully switch. NV and SV spent the last 20-25 minutes of water phase trading back and forth as primary water spouter. Both vents in steam at 02:19. . |
| nomad | Time Entered:2019-07-04 23:04:06 Time Uploaded:2019-07-04 23:04:09 Submitted to:GeyserTimes for iOS |
| https://www.flickr.com/photos/jsjgeology/48195016582 | Norris Museum seismogram showing Steamboat Geyser's 1:16 AM-onward major eruption on 4 July 2019. | Entrant: JSJ Time Entered:2019-07-04 11:45:11 Time Updated:2019-07-04 11:46:32 Time Uploaded:2019-07-04 11:46:32 Submitted to: |
| https://www.flickr.com/photos/jsjgeology/48194975941 | Norris Junction seismogram showing Steamboat Geyser's 1:16 AM-onward major eruption on 4 July 2019. | Entrant: JSJ Time Entered:2019-07-04 11:47:18 Time Updated:2019-07-04 11:47:45 Time Uploaded:2019-07-04 11:47:44 Submitted to: |
| https://www.flickr.com/photos/jsjgeology/48198191466 | Tantalus Creek discharge graph showing Steamboat Geyser's 1:16 AM major eruption on 4 July 2019. |