Henrys Fork at St Anthony ID

Fremont County, Idaho · USGS gauge 13050500 · NWS ANTI1 · Henrys Fork flood status · Idaho river levels

Nearby: river levels near St Anthony

Is Henrys Fork at St Anthony ID flooding right now?

Henrys Fork at St Anthony ID measured 3.83 ft on 2026-09-11 01:45:00 UTC. That observation was 3.2 ft below its 7 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
3.83 ft
as of 20 min ago
Streamflow
1,700 cfs
data refreshed 2 min ago

Minor flooding here begins at 7 ft, with major flooding at 11 ft. The highest crest on record was 8.84 ft on Wed, Jun 8, 2011.

Flood forecast

NWS forecast, issued 11 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

CategoryStageCurrent distance
Action6.5 ft2.7 ft below
Minor flood7 ft3.2 ft below
Moderate flood8.2 ft4.4 ft below
Major flood11 ft7.2 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
8.84 ft2011-06-08
8.62 ft1984-05-16
7.77 ft1975-06-04
7.57 ft1997-05-30
7.49 ft1996-05-17

Nearby gauges

GaugeDistanceCounty
Teton River near St Anthony ID4.0 miFremont County
North Fork Teton River at Teton ID4.8 miFremont County
Fall River near Chester ID6.3 miFremont County
Nf Teton River near Sugar City ID6.9 miMadison County
Sf Teton River near Rexburg ID10.5 miMadison County
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.

Sources: USGS monitoring location · NWS gauge & forecast