Products > Basin Precipitation Map

Potomac Basin Precipitation Monitoring

This map displays precipitation totals from the previous day (calculated from midnight to midnight). Cumulative daily values are averaged by Potomac basin sub-watershed and computed by CO-OP's Low Flow Forecast System based on gridded multi-sensor precipitation estimates provided by the Middle Atlantic River Forecast Center.

Rainfall Totals (inches)
0.0 1.0 2.0 3.0 6.0+