Fortymile River Water Levels at Tetlin, AK - Live FMSA2 Gauge & Flood Status

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Critical Stages
91' - Action	97' - Flood	98' - Moderate Flood	Major Flood

Fortymile River - Gauge FMSA2
South Fork, AK
Lat: 64.05N, Lon: 141.77W

Latest Observation
Updated: 5:00 PM AKST 11/14/25

Stage:	82.38 ft
Flow:	1.27 kcfs*
* Thousand cubic feet per second

Forecast

Observation History Hydrograph Flood Impacts Historical Events

hydrograph

Flood Impacts

Historical Crests

Historical crest information is not available.

Data provided by NOAA Advanced Hydrologic Prediction Service