No rain fell in the basin over the past 24 hours. Rainfall is expected over the next 3 days according to the Middle Atlantic River Forecast Center, ranging from 0.1 to 1 inch. The National Weather Service’s 7-day forecast predicts additional rainfall over the course of the next week, with 7-day totals up to 1 ¼ inches in some areas.
Potomac River flows continue to slowly decline. A modest amount of rain – ranging from 0.1 to 0.5 inches – is expected in the basin over the next 3 days according to Middle Atlantic River Forecast Center forecasts.
Over the last 24 hours, no precipitation has been recorded in the basin. No significant rainfall is expected over the next 72 hours.
Potomac River flows continue to fall. National Weather Service forecasts indicate that no rain will fall in the basin over the next three days.
Potomac River flows at Little Falls have been relatively steady for the past few days. The USGS conducted two field discharge measurements at Point of Rocks over the course of the past few days and adjusted flow values accordingly. No rainfall is expected in the basin over the next three days.
CO-OP is reinitiating daily drought monitoring and reporting today because Potomac River flow at the US Geological Survey’s stream gage at Point of Rocks, Maryland, is approaching the 2000 cubic feet per second (cfs), CO-OP's daily monitoring threshold. According to the Middle Atlantic River Forecast Center, no rainfall is expected in the basin over the next three days.
CO-OP is suspending daily drought monitoring emails because flow at the US Geological Survey’s gage at Point of Rocks, Maryland, has risen above the 2000 cfs monitoring threshold. Yesterday, a tornado watch lasted until 9 p.m., but there were no confirmed tornadoes in the region. Some parts of the basin observed up to 1.75 to 2 inches of precipitation during this time. The Middle Atlantic River Forecast Center predicts an additional 0.1 to 1.25 inches of rainfall over the next 72 hours, possibly arriving by this Thursday.
Precipitation amounts over the past 24 hours varied from trace amounts in the middle of the basin to over an inch in some locations in far western areas and in some parts of the DC metro area. Given the locations of the heaviest rainfall amounts, only a modest increase in flows at the USGS gage at Point of Rocks has occurred at this time. Flows remain below the threshold for daily monitoring.
The basin received negligible rain over the past 24 hours. But the weather forecast shows some potential relief in the coming days. According to the Middle Atlantic River Forecast Center, precipitation totals ranging from 0.25 to 2 inches are expected in the next 72 hours throughout the basin.
River flows continue to slowly decline. National Weather Service forecasts indicate that there will be significant rainfall in the northern half of the basin – 0.5 to 1.5 inches - over the next three days.