Snake River above Jackson Lake at Flagg Ranch WY
Is Snake River above Jackson Lake at Flagg Ranch WY flooding right now?
Snake River above Jackson Lake at Flagg Ranch WY measured 2.27 ft on 2026-09-11 01:30:00 UTC. That observation was 7.7 ft below its 10 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
2.27 ft
Streamflow
217 cfs
Minor flooding here begins at 10 ft. The highest crest on record was 10.75 ft on Wed, Jun 5, 1996.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 9 ft | 6.7 ft below |
| Minor flood | 10 ft | 7.7 ft below |
| Moderate flood | 11 ft | 8.7 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 10.75 ft | 1996-06-05 |
| 10.16 ft | 1997-06-05 |
| 9.41 ft | 1986-06-06 |
| 9.3 ft | 1995-06-06 |
| 9.25 ft | 2011-06-24 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Snake River near Moran, WY | 17.1 mi | Teton County |
| Boundary Creek near Bechler Ranger Station Y.N.P. WY | 17.9 mi | Teton County |
| Pacific Creek at Moran, WY | 18.7 mi | Teton County |
| Buffalo Fork above Lava Creek, near Moran, WY | 21.2 mi | Teton County |
| Fall River above Yellowstone Canal near Squirrel ID | 24.1 mi | Fremont County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.