Data Sources
A curated list of public sources for rainfall, heavy rain, and flooding data in Michigan.
01
Rainfall
Official sources providing rainfall and precipitation measurements across Michigan.
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NOAA National Centers for Environmental Information (NCEI)
https://www.ncei.noaa.gov
National archive for historical rainfall and climate data.
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NOAA Climate Data Online (CDO)
https://www.ncdc.noaa.gov/cdo-web
Station-based daily, monthly, and annual precipitation data.
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PRISM Climate Group
https://prism.oregonstate.edu
High-resolution gridded precipitation data commonly used for analysis and modeling.
02
Heavy Rain
Data sources and records related to extreme and heavy rainfall events in Michigan.
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NOAA National Weather Service (NWS) – Michigan
https://www.weather.gov
Heavy rain alerts, warnings, and weather event information.
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NWS Storm Events Database
https://www.ncdc.noaa.gov/stormevents/
Historical records of heavy rain and extreme weather events.
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NOAA Atlas 14
https://hdsc.nws.noaa.gov/hdsc/pfds/
Precipitation frequency estimates used for intensity-duration-frequency analysis.
03
Flooding
Sources documenting flood events, water levels, inundation areas, and flood impacts across Michigan.
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USGS Water Data for Michigan
https://waterdata.usgs.gov/mi/nwis
River stage, streamflow, and flood-related hydrologic data.
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FEMA Flood Map Service Center
https://msc.fema.gov
Official flood hazard maps and floodplain data.
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Michigan Department of Environment, Great Lakes, and Energy (EGLE)
https://www.michigan.gov/egle -
State-level water, flooding, and environmental data.
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FEMA Disaster Declarations
https://www.fema.gov/disaster/declarations
Official records of federally declared flood disasters.