Arlington County and much of the surrounding region is under a Flood Watch tonight through Monday morning.
Forecasters say rain will start falling this evening and continue throughout the night, raising the possibility of flooding in flood-prone areas.
From the National Weather Service:
* FROM 7 PM EDT THIS EVENING THROUGH MONDAY MORNING
* MODERATE TO LOCALLY HEAVY RAIN WILL OVERSPREAD THE REGION THIS EVENING THROUGH TONIGHT… RAINFALL TOTALS AROUND ONE AND A HALF INCHES ARE EXPECTED ACROSS THE GREATER BALTIMORE-WASHINGTON METRO AREA. LOCALLY HIGHER AMOUNTS ARE POSSIBLE… ESPECIALLY ALONG AND IMMEDIATELY EAST OF THE BLUE RIDGE/CATOCTIN MOUNTAIN.
* EXPECT SMALL STREAMS AND CREEKS TO RISE… POSSIBLY OVERFLOWING THEIR BANKS. IN ADDITION… FLOODING MAY OCCUR IN LOW LYING AND POOR DRAINAGE AREAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS.
PLEASE MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.