Update at 4:25 p.m. — The Flash Flood Watch has been cancelled.
415pm: Flash Flood Watch CANCELLED. Heavy rain threat has ended.
— NWS DC/Baltimore (@NWS_BaltWash) August 7, 2017
Arlington and much of the rest of the D.C. area is under a Flash Flood Watch today.
Heavy rain and storms are expected today. Rainfall rates of 1-2 inches per hours could produce flash flooding, forecasters warn.
More from the National Weather Service:
… FLASH FLOOD WATCH NOW IN EFFECT FROM 9 AM EDT THIS MORNING THROUGH THIS EVENING… THE FLASH FLOOD WATCH IS NOW IN EFFECT… * FROM 9 AM EDT THIS MORNING THROUGH THIS EVENING * MULTIPLE ROUNDS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY WITH LOCALIZED HEAVY RAINFALL RATES OF 1 TO 2 INCHES PER HOUR POSSIBLE. * RUNOFF FROM EXCESSIVE RAINFALL MAY CAUSE RAPID RISES OF WATER IN LOW-LYING AND POOR DRAINAGE AREAS AS WELL AS STREAMS AND CREEKS, RESULTING IN FLASH FLOODING. URBAN AREAS WILL BE MOST SUSCEPTIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS… A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. &&
Rain, heavy at times today. Highest chance of flash flooding from the I-95 corridor on east, where a Flash Flood Watch is in effect 9AM-10PM pic.twitter.com/bdcoNoqV9S
— NWS DC/Baltimore (@NWS_BaltWash) August 7, 2017
Flash #Flood Watch has been issued. 1-1.5" expected on average, localized 3"+ totals possible. Urban areas most susceptible. pic.twitter.com/FP3WgQgerB
— NWS DC/Baltimore (@NWS_BaltWash) August 6, 2017