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WHAT: Flash flooding caused by excessive rainfall is possible.
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WHERE: The District of Columbia, and portions of Maryland, including the following areas, Carroll, Central and Southeast Howard, Central and Southeast Montgomery, Frederick, Northwest Howard, Northwest Montgomery and Prince Georges, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Eastern Loudoun and Fairfax.
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WHEN: Until 1 AM EDT Monday.
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IMPACTS: Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas.
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ADDITIONAL DETAILS:
- Thunderstorms will develop into an increasingly humid airmass this evening. This, combined with recent rainfall, may result in flash flooding, particularly along small streams and in urban areas. Localized totals of 2 to 4 inches of rain are possible.
- Please visit https://www.weather.gov/safety/flood for flood safety and preparedness information.
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...The District of Columbia, and portions of Maryland, including the following areas, Carroll, Central and Southeast Howard, Central and Southeast Montgomery, Frederick, Northwest Howard, Northwest Montgomery and Prince Georges, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Eastern Loudoun and Fairfax. * WHEN...Until 1 AM EDT Monday. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Thunderstorms will develop into an increasingly humid airmass this evening. This, combined with recent rainfall, may result in flash flooding, particularly along small streams and in urban areas. Localized totals of 2 to 4 inches of rain are possible. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information.
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 465 IN EFFECT UNTIL 1 AM EDT MONDAY FOR THE FOLLOWING AREAS THE DISTRICT OF COLUMBIA IN MARYLAND THIS WATCH INCLUDES 13 COUNTIES IN CENTRAL MARYLAND ANNE ARUNDEL HOWARD MONTGOMERY PRINCE GEORGES IN NORTH CENTRAL MARYLAND CARROLL FREDERICK WASHINGTON IN NORTHEAST MARYLAND CECIL IN NORTHERN MARYLAND BALTIMORE BALTIMORE CITY HARFORD IN SOUTHERN MARYLAND CALVERT CHARLES IN VIRGINIA THIS WATCH INCLUDES 22 COUNTIES IN CENTRAL VIRGINIA CITY OF FREDERICKSBURG KING GEORGE IN NORTHERN VIRGINIA ARLINGTON CITY OF ALEXANDRIA CITY OF FAIRFAX CITY OF FALLS CHURCH CITY OF MANASSAS CITY OF MANASSAS PARK CULPEPER FAIRFAX FAUQUIER LOUDOUN PRINCE WILLIAM STAFFORD IN NORTHWEST VIRGINIA CITY OF WINCHESTER CLARKE FREDERICK MADISON PAGE RAPPAHANNOCK SHENANDOAH WARREN IN WEST VIRGINIA THIS WATCH INCLUDES 3 COUNTIES IN PANHANDLE WEST VIRGINIA BERKELEY JEFFERSON MORGAN THIS INCLUDES THE CITIES OF ABERDEEN, ABINGDON, ADAMS MORGAN, ADEN, AIRLIE, ALBIN, ALEXANDRIA, ALONZAVILLE, ANDORA, ANNANDALE, ANNAPOLIS, APPLETON, ARCO, ARKENDALE, ARLINGTON, ARNOLD, BAKERTON, BALLENGER CREEK, BALLSTON, BALTIMORE, BARCROFT, BARKSDALE, BAY VIEW, BENTONVILLE, BERKELEY SPGS, BERRYVILLE, BERRYVILLE, BETHEL, BETHESDA, BLAKE, BLOOMERY, BOHEMIAS MILLS, BOWIE, BOYDS, BRANTWOOD, BROOKFIELD, BROOMES ISLAND, BUCKEYSTOWN, BUCKTON, BURKE, BYNUM, CARDOVA, CATALPA, CATONSVILLE, CEDAR GROVE, CEDARVILLE, CHANTILLY, CHARLES TOWN, CHERRYDALE, CHESAPEAKE BEACH, CHESTER GAP, CLARKSVILLE, CLARY, CLINTON, COLLEGE PARK, COLUMBIA, COMPTON, COUNTRYSIDE, COVE POINT, CULPEPER, DAHLGREN, DALE CITY, DRUM POINT, DULLES INTERNATIONAL AIRPORT, DUNDALK, DUNKIRK, EDGEWOOD, ELDERSBURG, ESSEX, FAIRFAX, FAIRFAX STATION, FAIRVIEW, FALLS CHURCH, FALMOUTH, FELLS POINT, FIVE FORKS, FORDSVILLE, FOUR CORNERS, FREDERICK, FREDERICKSBURG, FRONT ROYAL, GAINESBORO, GAITHERSBURG, GAMBER, GARRISONVILLE, GERMANTOWN, GLEEDSVILLE, GLEN BURNIE, GLEN ECHO, GLENDIE, GLENMONT, GREENBELT, HAGERSTOWN, HALFWAY, HAMBURG, HANCOCK, HARFORD FURNACE, HAWKINSTOWN, HICKORY, HISTORIC ELLICOTT CITY, HOWELLSVILLE, INDEPENDENT HILL, KIMBALL, LAKE RIDGE, LANGLEY, LEESBURG, LONG BEACH, LUCKETTS, LURAY, MADISON MILLS, MAGNOLIA, MAGNOLIA, MANASSAS, MANASSAS PARK, MARTINSBURG, MCLEAN, MIDDLEWAY, MILLVILLE, MONTCLAIR, MONTPELIER, MOUNT CLIFTON, MOUNT HARMONY, MOUNT JACKSON, OAK GROVE, PARK HEIGHTS, PARK MILLS, PARKVILLE, PAW PAW, RANDALLSTOWN, RANSON, RAPIDAN, REAGAN NATIONAL AIRPORT, RESTON, REVA, RIDGEWAY, RILEYVILLE, RIVERCREST, ROLLINS FORK, ROSSLYN, SEVERN, SEVERNA PARK, SHADY GROVE, SHENANDOAH JUNCTION, SHILOH, SILVER SPRING, SIMPSONVILLE, SKYLAND, SMITH CROSSROADS, SOUTH GATE, ST. CHARLES, STERLING PARK, STEVENSBURG, STRASBURG, STRINGTOWN, SUITLAND-SILVER HILL, TANTALLON, TOWSON, TURNBULL, TWYMANS MILL, WALDORF, WARRENTON, WASHINGTON, WESTMINSTER, WIDEWATER, WINCHESTER, WINSTON, WOODBRIDGE, WOODLAWN, WOODSTOCK, AND WOODSTOCK.
The Maryland Department of the Environment has issued a Code RED Air Quality Alert Sunday for the Maryland suburban DC region. A Code Red Air Quality Alert means that air pollution concentrations within the region are unhealthy for the general population. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles visit the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
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