National Weather Service United States Department of Commerce

Forecasts of future precipitation are derived from weather models and from forecaster judgment. Although accuracy of precipitation forecasts can vary from weather system to weather system, such forecasts are important for river forecasts.

Low Bandwidth
 

More national forecast precipitation options
Static images. Updates every 6-12hrs.

Forecast precipitation interactive maps
Gridded forecasts for future rainfall. Interactive maps with reduced functionality indended for mobile devices and tablets.

 

Full-Featured
 

Forecast precipitation interactive maps
Interactive maps with dynamic overlays. Gridded forecasts for future rainfall. Not recommended for mobile devices.