Heavy rain is expected tomorrow night, and already the National Weather Service is warning of possible flooding.

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A FLASH FLOOD WATCH FOR THE WASHINGTON AND BALTIMORE METROPOLITAN AREAS FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON

A STRONG COLD FRONT WILL SLOWLY APPROACH THE AREA TUESDAY NIGHT BEFORE PASSING THROUGH EARLY WEDNESDAY MORNING. RAIN IS EXPECTED TO OVERSPREAD THE AREA BY TUESDAY EVENING…BUT THE HEAVIEST RAINFALL IS EXPECTED LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING. RAINFALL AMOUNTS AROUND ONE TO TWO INCHES ARE EXPECTED WITH ISOLATED AMOUNTS UP TO 3 INCHES POSSIBLE IN HEAVIER BANDS OF RAIN AND THUNDERSTORMS. HEAVY AMOUNTS OF RAINFALL MAY CAUSE SMALL STREAMS AND CREEKS TO RISE OUT OF THEIR BANKS.

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.


So far, we have not heard of any flooding in Arlington as a result of this morning’s deluge. However, Arlington County just issued the following alert:

THE DC AREA IS UNDER A FLASH FLOOD WARNING MEANING IT IS IMMINENT.USE CAUTION. DO NOT DRIVE VEHICLES THROUGH WATER COVERING ROADWAY.DO NOT CROSS BARRICADES.RUSH HOUR LIKELY TO BE AFFECTED.RESIDENTS LIVING IN FLOODING AREAS TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY.CHECK LOCAL WEATHER SOURCES FOR STATUS REGULARLY.


From Arlington Alert:

FLASH FLOOD WATCH IN EFFECT FOR DC AREA FROM MIDNIGHT WED TO THUR UP TO 11PM. MONITOR FORECASTS. BE PREPARED TO TAKE ACTION SHOULD WARNINGS BE ISSUED. POSSIBLE 1-2 INCHES OF RAINFALL EACH DAY/NIGHT.


Right now it looks like just another drizzly day outside, but Arlington County is warning residents about the threat of severe weather later this afternoon. From Arlington Alert:

There is a chance of severe weather this afternoon and evening in the immediate D.C. metro area which may escalate quickly. Please stay alert.


From Arlington Alert:

Arlington is under a flood watch beginning at 10 am on Wednesday, August 18 and lasting til 3 am on Thursday, August 19.  National Weather Service is predicting periods of rain that could produce local amounts of rain up to 2″ to as much as 3″


Update at 2:45 p.m. — Warning extended to 3:30.

Update at 2:00 p.m. — A severe thunderstorm warning has been issued for Arlington County until 2:45.

From Arlington Alert:

National Weather Service has issued a severe thunderstorm watch for the entire Metro region, including Arlington County until 8:00 pm this evening.Primary threats include heavy rain, hail and lightning. If you are outside and the storm approaches, seek shelter indoors.


Arlington County has issued an alert regarding the potential for significant snowfall on Thursday.

National Weather Service has issued a Winter Storm Watch for our area, beginning late Wednesday night through Thursday night.  There is potential for 5 or more inches of snow.