Monitoring Reports

Situational Awareness (Saturday, 2025-10-04)
There has been no rainfall over the past 24 hours. According to the Middle Atlantic River Forecast Center, average basin rainfall over the next three days is expected to remain near zero inches. The seven-day outlook indicates up to 0.75 inches of total rainfall in parts of the basin.

Special Conditions
U.S. Drought Monitor percent coverage of the Potomac for D1 and greater is currently 59 percent. 

Situational Awareness (Friday, 2025-10-03)
No precipitation was observed in the Potomac basin over the past 24 hours. The Middle Atlantic River Forecast Center projects little to no rainfall over the next three days. The seven-day outlook indicates a total of up to 0.5 inches of rain across the basin.

Situational Awareness (Thursday, 2025-10-02)
No rainfall fell in the Potomac watershed yesterday according to Middle Atlantic River Forecast Center (MARFC) estimates. Dry conditions are predicted to persist in the watershed for the next five days, according to forecasts from MARFC and from the National Weather Service’s Weather Prediction Center.  

Special Conditions

Situational Awareness (Wednesday, 2025-10-01)
Potomac River flows have been hovering around 2000 cfs due to the recent rain, but no significant rainfall is expected over the next 10 days. According to information from the Middle Atlantic River Forecast Center, trace amounts to 1/4 inch of rain fell in the southern half of the Potomac watershed over the past 24 hours and no rain is forecast over the next 3 days.

Situational Awareness (Tuesday, 2025-09-30)
Trace amounts of rain fell in the lower basin yesterday. According to the Middle Atlantic River Forecast Center predictions, no appreciable rain is expected over the next five days.

Special Conditions
The USGS website appears to be down and gage data are not available at this time.

Situational Awareness (Monday, 2025-09-29)
Flows have moderately increased over the past week. Flow at Point of Rocks is currently hovering around 2,000 cfs. No rainfall was recorded in the basin over the past 24 hours, according to the Middle Atlantic River Forecast Center. Over the next three days, 0.01 to 0.1 inches of rain are expected, with no substantial rainfall forecast for the week.

Special Conditions
None

Situational Awareness (Sunday, 2025-09-28)
Widespread rainfall fell across the basin over the past 24 hours, ranging from trace amounts to 0.5 inches. Over the next 72 hours, 0.1 to 0.25 inches is forecast for the southern portions of the basin.

Special Conditions
None

Situational Awareness (Saturday, 2025-09-27)
Over the past 24 hours, the Potomac Basin received 0.1 to 0.75 inches, mainly in the southwestern headwaters, with little to none elsewhere. Over the next 72 hours, 0.1 to 1 inch is forecast across the basin, with the highest amounts in the southern areas.

Situational Awareness (Friday, 2025-09-26)
Widespread precipitation fell across the basin over the past 24 hours, ranging from trace amounts to an inch in some areas.  According to the Middle Atlantic River Forecast Center predictions, the next 3 days may see additional rain between trace amounts and 0.75 inches.  

Situational Awareness (Thursday, 2025-09-25)

Potomac River flows are expected to rise slightly over the next several days according to Middle Atlantic River Forecast Center (MARFC) predictions. MARFC estimates that total rainfall over the past three days has ranged from 0.25 to 1 inches in most portions of the Potomac watershed above Little Falls. Cumulative precipitation forecasts call for 0.50 to 0.75 inches of rain over the next three days.

Special Conditions

None