National Weather Service United States Department of Commerce

Severe Thunderstorm and Flash Flooding Risks from Southern Plains to Midwest; Heat Wave Developing in the Southeast

Severe thunderstorms and flash flooding will again be possible from the Southern Plains into the Midwest on Friday. Periodic risks of severe thunderstorms, along with flash flooding, are forecast from the Central and Southern Plains to the Great Lakes and Northeast into the Memorial Day weekend. Temperatures across much of the East will run above normal where they will hold into Memorial Day. Read More >

Hydrology - River, Rainfall, Snow and Ice Data

Observations and Current Conditions

Rainfall and River Reports

Streamflow

HADS (alternate site for Streamflow)

Rainfall Data

Snowfall Data

Ice

Precipitation Frequency Data Server

Water Temperature

Forecasts and Guidance

Forecasts and Statements

Flash Flood and Headwater Guidance

Meteorological Model Ensemble River Forecasts (MMEFS)

SHEF

Drought Information

Miscellaneous Links