National Weather Service United States Department of Commerce

Great Falls Weather Radar Will Be Offline August 11-17

Beginning August 11, the weather radar in Great Falls will be offline for approximately a week for an important upgrade. Technicians will replace the radar’s generator, fuel tanks, and accompanying components. For direct access to surrounding radar sites, please visit the following web page: Read More >



Current Hydrology Discussion


Additional Resources

Current Watches and Warnings

   Flash Flood Watch  
   Flash Flood Warning  
   Flash Flood Statement  
   Areal Flood Warning  

   Hydrologic Outlook  
   Flood Watch  
   Flood Warning  
   Flood Statement  
   Flood Advisory

Current and Forecast River Stages


Significant River Flood Outlook for the Missouri River Basin


Current Radar Imagery

1 Hour Precipitation Storm Total Precipitation
National Radar Map

Liquid Precipitation And Snowfall Forecasts

Snowfall Forecast (See Graphic for Date and Time Range)


Day 3
Excessive Rainfall Outlook
Excessive Rainfall Outlook
Excessive Rainfall Outlook
Day 3

Antecedent Conditions - Snow Cover, Basin Snow Water Equivalent (SWE), and Soil Moisture

Current Observed Snow Depth


 Montana SNOTEL Current Snow Water Equivalent (SWE) % of Normal Soil Moisture


Drought Information

Current Drought Conditions For Montana

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Drought Outlook

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Climate Outlook

CPC 6 to 10 Day Precip Outlooks CPC 6 to 10 Day Precip Outlooks
CPC 8 to 14 Day Precip Outlooks CPC 8 to 14 Day Temperature Outlooks