Percolating. . .
| Geyser: | Whistle |
| Date/Time From: | 1991-07-18 @ 0000 |
| Date/Time To: | 1991-07-18 @ 2359 |
| Entrant: | geysergaze |
| Observer: | Clark Murray, Goldberg Family, Bill Warnock |
| Time Entered: | 2013-02-19 22:50:41 |
| Time Updated: | 2013-12-03 08:05:57 |
| Time Uploaded: | 2013-02-19 22:50:41 |
| Submitted to: | Geysertimes.org |
| Note: | Observed NS from Old Faithful Overpass. water phase lasted over four minutes, which is very long historically. Most water phases last about a minute. |