Situational Awareness (Saturday, 2025-12-27)
According to information from the Middle Atlantic River Forecast Center (MARFC), Potomac River flow at the USGS’s Point of Rocks gage will likely remain about CO-OP’s daily drought reporting threshold of 2000 cfs for the next week. Therefore, we are suspending daily drought monitoring and reporting for the time being.
Situational Awareness (Friday, 2025-12-26)
According to the Middle Atlantic River Forecast Center, trace amounts of rainfall fell in the basin over the past 24 hours. Over the next 3 days, the average rainfall may be around 0.1 inches, with greater accumulations occurring in northern portions of the basin.
Special Conditions
None
Situational Awareness (Thursday, 2025-12-25)
According to information from the Middle Atlantic River Forecast Center, modest amounts of rain fell in the Potomac watershed during the past 24 hours - up to 0.25 inches. Over the next 3 days, the average accumulations of approximately 0.1 inches are expected.
Special Conditions
Happy holidays!
Daily flows:
Little Falls gage flow 2025-12-24: 1674 MGD (2590 cfs)
Situational Awareness (Tuesday, 2025-12-23)
According to information from the Middle Atlantic River Forecast Center, 0.01 to 0.25 inches of rain fell in the northern portion of the Potomac watershed during the past 24 hours and average accumulations of approximately 0.1 inches are expected over the next 3 days.
Special Conditions
Yesterday’s daily flow at Point of Rocks was unavailable and was computed from provisional real-time data.
Situational Awareness (Monday, 2025-12-22)
According to the Middle Atlantic River Forecast Center, no rain fell in the basin over the past 24 hours. The week-long outlook expects a total of approximately 0.1 to 0.25 inches of rain in the basin, with greater totals expected in western portions of the basin.
Special Conditions
None
Situational Awareness (Friday, 2025-12-19)
According to the Middle Atlantic River Forecast Center, observed precipitation yesterday ranged from about 0.25 to 0.75 inches. Over the next five days, average basin rainfall is expected to be around 0.01 to 0.25 inches, with some areas possibly receiving up to 0.5 inches.
Situational Awareness (Thursday, 2025-12-18)
According to the Middle Atlantic River Forecast Center, there was no observed precipitation in the basin over the past 24 hours. Between 0.25 and 1 inch of rain is possible over the next 3 days.
Situational Awareness (Wednesday, 2025-12-17)
According to information from the Middle Atlantic River Forecast Center (MARFC), there was no precipitation during the past 24 hours in the Potomac River watershed about Little Falls. MARFC ensemble forecasts indicate that the watershed will receive a cumulative average of approximately 1/2 inch of rain over the next 3 days.
Special Conditions
Situational Awareness (Tuesday, 2025-12-16)
According to the Middle Atlantic River Forecast Center, no appreciable precipitation fell in the basin over the past 24 hours. Over the next 3 days, the average basin precipitation may be around 0.5 Inches.
Situational Awareness (Monday, 2025-12-15)
According to the Middle Atlantic River Forecast Center, trace amounts of precipitation fell in eastern portions of the basin over the past 24 hours. Over the next 3 days, no precipitation is anticipated. However, the week-long outlook expects a total of approximately 0.5 inches of precipitation in the basin.