Situational Awareness (Thursday, 2025-10-09)
Potomac River flows are holding relatively steady. No appreciable amount of rain fell in the Potomac watershed yesterday. According to the Middle Atlantic River Forecast Center, 1/10 to 1/4 inch is expected over the next three days in most parts of the watershed, and an average accumulation of more than 1/2 inch is expected over the next 4 days.
Special Conditions
None
Situational Awareness (Wednesday, 2025-10-08)
Over the past 24 hours, precipitation across the basin ranged from trace amounts to more than 1.75 inches. The Middle Atlantic River Forecast Center predicts trace amounts of rain in parts of the basin over the next three days.
Special Conditions
None
Situational Awareness (Tuesday, 2025-10-07)
No precipitation was recorded in the basin over the past 24 hours. The Middle Atlantic River Forecast Center predicts 0.25-0.75 inches of rain across much of the basin over the next three days, with localized totals up to 1.5 inches possible.
Special Conditions
None
Daily flows:
Little Falls gage flow 2025-10-06: 918 MGD (1420 cfs)
Situational Awareness (Monday, 2025-10-06)
According to Middle Atlantic River Forecast Center predictions, no rain fell in the Potomac watershed over the past 3 days, but approximately 1/2 inch is expected over the next 3 days.
Special Conditions
USGS stream gage website pages will not be updated due to the lapse in federal funding. However, at this time updated streamflow data continues to be available.
Situational Awareness (Sunday, 2025-10-05)
No rainfall has been recorded over the past 24 hours. According to the Middle Atlantic River Forecast Center, basin rainfall over the next three days is expected to range from 0.25 to 0.75 inches. The seven-day outlook indicates total rainfall of up to 0.75 inches in parts of the basin.
Special Conditions
None
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.