Flow at the Point of Rocks gage fell below the 2,000 cfs threshold on Friday. Daily monitoring begins today. For more information on ICPRB's drought monitoring visit http://tinyurl.com/oda5aqp.
The Middle Atlantic River Forecast Center reports that the majority of the basin received a negligible amount of rain over the past 24 hours; very limited areas received 0.5 to 2 inches. Little to no rain is expected over the next 2 days.
Daily flow and demand monitoring is discontinued now that flow at the Point of Rocks gage has risen well above 2,000 cfs.
Thank you to everyone who provided daily reports.
Point of Rocks flow is currently at 4,140 cfs and is above the low flow threshold of 2,000 cfs. Bear with us while we wait to see if Point of Rocks flow remains above the low-flow threshold of 2,000 cfs.
The National Weather Service reports that yesterday between 0.5 and 2.0 inches of rain fell over the basin. The 72-hour forecast shows between 0.1 and 0.25 inches of rain may fall in the basin. The 7-day forecast shows that between 0.1 and 0.6 inches of rain may fall in the basin.
During the past 24 hours the western half of the basin received 1 to 2 inches of rain. More rain is on the way, with forecasted accumulations of 1 to 2 inches across the basin over the next two days. Given the forecast and recent rainfall, we expect that mean daily flow at Point of Rocks will soon rise above the trigger for daily drought monitoring of 2000 cfs.
The National Weather Service reports that yesterday between 0.1 and 0.5 inches of rain fell over much of the basin. The 48-hour forecast is showing significant rainfall, with accumulated totals between 1.0 and 2.0 inches across the basin.
Trace amounts of rain fell across much of the basin over the last 24 hours. Some areas received up to a quarter of an inch of rain. The Middle Atlantic River Forecast Center predicts that one to one and three quarters inches of rain may fall across the basin in the next 72 hours.
The Potomac basin received 0 to 1/4 of an inch of rain over the past 24 hours. The National Weather Service's 3-day forecast calls for total accumulations of 1/10 to 3/4 inch in the basin, with most areas expecting to receive 1/4 to 1/2 inch of rain..
Flow at Point of Rocks remains below the low-flow threshold of 2,000 cfs. Flow at Point or Rocks continues to rise, but is still below median levels for this time of the year.
The Potomac basin received 1/4 to 3/4 of an inch of rain over the past 24 hours, and 1/2 to 1 1/2 inches over the past 5 days. Flows throughout the basin continue to rise, but are still below median levels for this time of the year in many areas. The National Weather Service's 3-day forecast calls for total accumulations of 1/4 to 1/2 inch in most parts of the basin.
Yesterday, an isolated area of the basin received trace amounts of precipitation. The National Weather Service forecasts 1/4 of an inch of rain over the entire basin over the next 24 hours. Accumulations over the next 3 days could reach between 1/2 and 1 inch.
There was no precipitation in the basin over the past 24 hours according to the National Weather Service. Precipitation ranging from one quarter of an inch to one inch is expected across the basin over the next 72 hours according to the Middle Atlantic River Forecast Center. The largest rainfall totals are expected in the central portion of the basin.