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Hydrologic Information

Advanced Hydrologic Prediction System (AHPS)
Composite page for river gauge readings
Montana Ice Jam Awareness Day - January 22, 2009
National Flood Safety Awareness Week - March 16-20, 2009
Report an Ice Jam

Hydro warnings, watches, and statements
Flood/Flash Flood Watch
Flood Warning
Flood Statement
Flash Flood Warning
Flash Flood Statement
River Statement
Extended Hydrologic Outlook

Precipitation Graphics
Monthly, water year, and calendar year precipitation plots and analyses:
Total Precipitation: Water Year
Contour plot of total precip: Water Year
Percentage of Normal Precip: Water Year
Total Precipitation: Calendar Year
Contour plot of total precip: Calendar Year
Percentage of Normal Precip: Calendar Year
Total Precipitation: Crop Year
Contour plot of total precip: Crop Year
Percentage of Normal Precip: Crop Year
Percentage of Normal Precip: Calendar Year
Historical Annual and Seasonal Precipitation Chart

Daily/monthly temp & precip graphics

Radar-derived precipitation estimates for Missouri River Basin

Missouri Basin RFC QPF:
Input to NWS River Forecast Model
Latest 12Z Basin Average Precipitation Forecasts

Miscellaneous precipitation graphics:
Normal Annual Precip for Montana

Other Hydro Links
National Weather Service links:
NWS Office of Hydrologic Development (OHD)
Missouri Basin River Forecast Center
Northwest River Forecast Center
National Operational Hydrologic Remote Sensing Center
Flood Awareness Week

U.S. Geological Survey links:
Current Montana Streamflow Map
Water Resources of Montana
Stream Gaging and Flood Forecasting Overview
National Water Conditions
Montana USGS

U.S. Bureau of Reclamation links:
Reservoir, Water Management and Supply Information

Other Government Agency links:
U.S. Army Corps of Engineers: Missouri River Region - Water Management Information
Water Management Resources from Alberta Environment

Montana Department of Natural Resources (DNRC) links:
Water Resources Division

The National Drought Mitigation Center helps people and institutions develop and implement measures to reduce societal vulnerability to drought.

Snow related links
National Operational Hydrologic Remote Sensing Center
Montana Natural Resources Conservation Service (NRCS)
NRCS Snowfall Trends in Montana River Basins
Montana Snow/Water Equivalent
Continental snowcover by satellite

Information on Flood Dangers
Low-Water Crossing Flood Safety

Webmaster
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Great Falls Weather Forecast Office
5324 Tri-Hill Frontage Rd
Great Falls, MT 59404-4933

Tel: (406) 453-2081

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