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
Situational Awareness (Tuesday, 2025-09-23)
According to the Middle Atlantic River Forecast Center, trace amounts of rainfall feel in western portions of the upper basin over the past 24 hours. The next 72 hours may see between 0.5 and 2 inches of rain. While the week-long outlook expects a total rainfall between 0.75 and 2 inches in the basin.
Special Conditions
None
Situational Awareness (Saturday, 2025-09-20):
According to the Middle Atlantic River Forecast Center predictions, the next 3 days may see trace amounts of rain around the edges of the basin. The week-long outlook expects a total of around 0.5–1.5 inches, which is modest compared to the heavy rainfall bands in the central U.S.
Special Conditions:
None
Situational Awareness (Friday, 2025-09-19)
No precipitation fell in the past 24 hours. Flows at Point of Rocks remain above the 2,000 cfs daily monitoring threshold but are expected to decline in the coming days. Forecasts from the Middle Atlantic River Forecast Center call for light rainfall of 0.01 to 0.1 inch over the next three days, with basin-wide totals of 0.01 to 0.5 inch expected over the week ahead.
Special Conditions
None
Situational Awareness (Wednesday, 2025-09-17):
Yesterday, 0 to 1.5 inches of precipitation fell across the region, leading to some increases in stream flows today. The Middle Atlantic River Forecast Center projects an additional 0.1 to 0.75 inches of precipitation over the next 24 to 72 hours.