Tornado Watch

DCC001-MDC003-005-009-013-017-025-027-031-033-037-510-VAC013-059-
099-137-153-177-179-510-600-610-630-683-020100-
/O.NEW.KLWX.TO.A.0333.120601T1751Z-120602T0100Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 333 IN
EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS

THE DISTRICT OF COLUMBIA

IN MARYLAND THIS WATCH INCLUDES 10 COUNTIES

IN CENTRAL MARYLAND

ANNE ARUNDEL          HOWARD                MONTGOMERY           
PRINCE GEORGES        

IN NORTH CENTRAL MARYLAND

CARROLL               

IN NORTHERN MARYLAND

BALTIMORE             HARFORD               

IN SOUTHERN MARYLAND

CALVERT               CHARLES               ST. MARYS            

IN VIRGINIA THIS WATCH INCLUDES 7 COUNTIES

IN CENTRAL VIRGINIA

KING GEORGE           ORANGE                SPOTSYLVANIA         

IN NORTHERN VIRGINIA

ARLINGTON             FAIRFAX               PRINCE WILLIAM       
STAFFORD              

IN MARYLAND THIS WATCH INCLUDES 1 INDEPENDENT CITY

IN NORTHERN MARYLAND

BALTIMORE CITY        

IN VIRGINIA THIS WATCH INCLUDES 5 INDEPENDENT CITIES

IN CENTRAL VIRGINIA

CITY OF FREDERICKSBURG                      

IN NORTHERN VIRGINIA

CITY OF ALEXANDRIA    CITY OF FAIRFAX       CITY OF FALLS CHURCH 
CITY OF MANASSAS      

THIS INCLUDES THE CITIES OF...ABERDEEN...ANNAPOLIS...ARLINGTON...

BEL AIR...CHANTILLY...CHESAPEAKE BEACH...COLUMBIA...DAHLGREN...

EDGEWOOD...FALLSTON...FALMOUTH...GAITHERSBURG...HAVRE DE GRACE...

JOPPATOWNE...LAUREL...MCLEAN...ORANGE...RESTON...

SPOTSYLVANIA COURTHOUSE...ST MARYS...TOWSON...WALDORF...

WASHINGTON...WESTMINSTER AND WOODBRIDGE.

Air Quality Index

425 PM EDT THU MAY 31 2012

THE FORECAST FRIDAY FOR THE DC METRO AREA IS CODE LEVEL
GREEN...WHICH IS GOOD...AND MEANS LITTLE OR NO HEALTH RISK.

PRIMARY POLLUTANT WILL BE OZONE.

FOR MORE INFORMATION ON GROUND-LEVEL OZONE AND FINE
PARTICLES...VISIT WWW.CLEANAIRPARTNERS.NET.

Hazardous Weather Outlook

140 PM EDT FRI JUN 1 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MARYLAND PORTION OF THE
CHESAPEAKE BAY...TIDAL POTOMAC RIVER...AND ADJACENT COUNTIES IN
CENTRAL MARYLAND AND NORTHERN VIRGINIA AS WELL AS THE DISTRICT OF
COLUMBIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS WILL DEVELOP AHEAD OF A COLD FRONT THIS AFTERNOON
INTO THE EVENING HOURS. IN ADDITION...A LINE OF THUNDERSTORMS WILL
DEVELOP ALONG A STRONG COLD FRONT AND MOVE THROUGH THE
METROPOLITAN AREAS BETWEEN 7 PM AND MIDNIGHT. THUNDERSTORMS WILL
BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS...LARGE HAIL AND
TORNADOES. HEAVY RAINFALL COULD ALSO LEAD TO FLASH FLOODING.

A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE TIDAL POTOMAC RIVER
AND MARYLAND CHESAPEAKE BAY THROUGH TONIGHT.

MINOR TIDAL FLOODING IS POSSIBLE DURING HIGH TIDE TONIGHT ALONG
THE WESTERN SHORE OF THE CHESAPEAKE BAY AND TIDAL POTOMAC
RIVER...PARTICULARLY AT SENSITIVE LOCATIONS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SMALL CRAFT ADVISORY CONDITIONS ARE POSSIBLE OVER THE WATERS
SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS HAVE BEEN ACTIVATED. PLEASE RELAY ALL SEVERE WEATHER
REPORTS TO YOU LOCAL NATIONAL WEATHER SERVICE.

There are currently no Special Weather Statements Cheltenham, Maryland.

Shortterm Forecast

1246 PM EDT FRI JUN 1 2012

.NOW...

LIGHT SHOWERS AND SPRINKLES WILL BE POSSIBLE EARLY THIS AFTERNOON FOR
NORTH EAST MARYLAND...WASHINGTON DC AND BALTIMORE METRO
AREAS...NORTHERN PIEDMONT AND...ALONG THE WESTERN SHORE OF THE
CHESAPEAKE BAY. THROUGH 3 PM...SHOWERS WILL BE CAPABLE OF
PRODUCING UP TO ONE TENTH OF AN INCH OF RAINFALL.