National Weather Service United States Department of Commerce
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

River Ice Reports

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