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Local Info
Critical Stages
ActionFloodModerate FloodMajor Flood
Thunder Bay River - Gauge BOLM4
Bolton, MI
Lat: 45.12N, Lon: 83.64W
 
Latest Observation
Updated: 9:30 AM EDT 10/14/25
Stage:11.29 ft
Flow:0.329 kcfs*
* Thousand cubic feet per second
Forecast
hydrograph
Flood Impacts
Historical Crests
Historical crest information is not available.

Data provided by NOAA Advanced Hydrologic Prediction Service

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