Situational Awareness (Sunday, 2024-06-30)
Substantial rainfall was recorded overnight and early this morning in the northeastern parts of the basin. It is expected that the entire basin will receive an average of 0.8 inches of rain by the end of the day. River flows at the Points of Rock gage have increased to 2930 cfs. We will continue to monitor flows over the next day.
Situational Awareness (Saturday, 2024-06-29)
No rainfall was recorded in the basin over the past 24 hours. About 0.4 inches is expected over the next 3 days.
Special conditions:
The river flow fluctuations due to the National Park Service bathymetric survey at Dams 4 and 5 have subsided.
Situational Awareness (Friday, 2024-06-28)
Dry conditions persist. According to the Middle Atlantic River Forecast Center predictions, average rainfall in the portion of the Potomac basin above Little Falls will total 0.3 inches over the next 24 hours and 0.5 inches over the next 3 days. The week-long outlook expects a total of approximately 0.7 inches.
Situational Awareness (Thursday, 2024-06-27)
Potomac River flows continue to slowly decline due to persistent dry conditions. According to the Middle Atlantic River Forecast Center predictions, a basin-wide average of 0.3 inches of rain is expected over the next 24 hours and 0.5 inches over the next three days. The week-long outlook calls for approximately 0.7 inches of rain in the basin above Little Falls.
Situational Awareness (Wednesday, 2024-06-26):
According to the Middle Atlantic River Forecast Center predictions, the next 24 hours may see 0.2 inches of rain. Over the next 3 days, the average basin rainfall may be around 0.5 inches. The week-long outlook expects a total of approximately 0.7 inches of rain in the basin.
Situational Awareness (Tuesday, 2024-06-25)
CO-OP is initiating daily drought monitoring and reporting today because Potomac River flow at the US Geological Survey’s gage at Point of Rocks, Maryland, has fallen below 2000 cubic feet per second (cfs), CO-OP's daily monitoring threshold. According to the Middle Atlantic River Forecast Center (MARFC) quantitative precipitation forecasts, 0.5 inches of rain are expected over the next 3 days. MARFC ensemble forecasts predict additional rain and rising river flows over the next 10 days.
Situational Awareness (Wednesday, 2023-11-22)
CO-OP is suspending drought operations because flow at the US Geological Survey’s gage at Point of Rocks, Maryland, has risen above the daily monitoring threshold of 2000 cfs as the basin received an average of about 1.4 inches of rain yesterday. Middle Atlantic River Forecast Center predictions indicate that flows are expected to remain above the daily monitoring threshold for at least the next 10 days.
Situational Awareness (Tuesday, 2023-11-21)
Dry conditions have continued, though Potomac River flows have been holding relatively steady in recent weeks. Forecasts call for a substantial amount of rain in the Potomac basin over the coming days: approximately 1.3 inches over the next 24 hours and 2 inches over the next 3 days. We hope this doesn’t cause too much of a problem for your family’s Thanksgiving travel plans, but we are grateful for getting some relief from this drought!
Situational Awareness (Monday, 2023-11-20)
According to the Middle Atlantic River Forecast Center, the basin will be dry on Monday and then receive rain on Tuesday. The following 3-day basin average precipitation total is 1.6 inches, with possible precipitation in the 1 to 2 inches range. This precipitation forecast may produce river and creek rises in streamflow on Tuesday and Wednesday. Currently, Shepherdstown and Point of Rocks USGS gage flows remain steady.
Situational Awareness (Sunday, 2023-11-19)
River flows continue to remain steady. According to the Middle Atlantic River Forecast Center predictions, 0.8 inches of rain are expected over the next 3 days, and a total of 1.5 inches over the next week.