Weather

UPDATED: Storm and Flood Warnings and Watches Issued for Arlington

By ARLnow.com

Update at 10:15 p.m. — Another Flash Flood Warning has been issued, covering portions of Arlington south of I-66.

Update at 7 p.m. — Perhaps as a result of the storms, a large power outage has been reported in the Fairlington area. Dominion is reporting 1,258 customers currently without power in Arlington County, in addition to those without power across the border in Alexandria.

Updated at 6:55 p.m. — A Flash Flood Warning has been issued for portions of Arlington County along and south of Lee Highway. The warning is in effect until 10:45 p.m. Those walking or driving should avoid flood waters, which could rapidly rise as a result of heavy rain.

Update at 6:20 p.m. — A Flood Warning has now been issued and is set to remain in effect until just after midnight.

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* FLOOD WARNING FOR… THE NORTHWESTERN DISTRICT OF COLUMBIA… ARLINGTON COUNTY IN NORTHERN VIRGINIA… THE CITY OF FALLS CHURCH IN NORTHERN VIRGINIA… NORTHEASTERN FAIRFAX COUNTY IN NORTHERN VIRGINIA… THE CITY OF ALEXANDRIA IN NORTHERN VIRGINIA…

* UNTIL 1215 AM EDT.

* AT 616 PM EDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN WHICH WILL CAUSE FLOODING. UP TO ONE INCH OF RAIN HAS ALREADY FALLEN. ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE… ARLINGTON, ALEXANDRIA, ANNANDALE, SPRINGFIELD, VIENNA, FALLS CHURCH, HUNTINGTON, MANTUA, PIMMIT HILLS, AMERICAN LEGION BRIDGE, REAGAN NATIONAL AIRPORT, MCLEAN, ROSSLYN, CRYSTAL CITY, POTOMAC, BURKE, OAKTON, LINCOLNIA, TYSONS CORNER AND FRANCONIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

TURN AROUND, DON’T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES.

Update at 5:50 p.m. — A Severe Thunderstorm Warning was just issued for all of Arlington County until 6:30 p.m. A storm with high winds and possible hail is now rumbling into the county.

Update at 5:40 p.m. — A Flash Flood Watch has also been issued for Arlington and much of the area.

…FLASH FLOOD WATCH IN EFFECT UNTIL 4 AM EDT SATURDAY…

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* FLASH FLOOD WATCH…

* UNTIL 4 AM EDT SATURDAY

* SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS EVENING INTO THE OVERNIGHT HOURS. SOME OF THE SHOWERS AND THUNDERSTORMS WILL PRODUCE HEAVY RAINFALL, WITH LOCALIZED AMOUNTS BETWEEN 2 AND 4 INCHES LIKELY.

* POTENTIAL IMPACTS INCLUDE RAPID RISES OF WATER, FLOODED ROADS, AND FLOODING OF STRUCTURES IN LOW LYING AREAS NEAR STREAMS.

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.

Earlier: Strong storms are possible this evening, prompting the National Weather Service to issue a Severe Thunderstorm Watch for Arlington and the region through 8 p.m.

Forecasters say storms may pack quarter-sized hail, damaging wind gusts and frequent lightning.

Some flooding is also possible. More from NWS:

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM FOR A MAJORITY OF THE WASHINGTON AND BALTIMORE METROPOLITAN AREAS. THE PRIMARY THREAT IS DAMAGING WINDS.

THUNDERSTORMS MAY ALSO PRODUCE ISOLATED INSTANCES OF FLOODING THROUGH THIS EVENING.