The National Weather Service has issued a Severe Thunderstorm Watch until 10 p.m. that includes St. Mary's, Calvert and Charles counties. Large hail and damaging winds are expected.

The National Weather Service issued the following Special Weather Statements this afternoon:

Severe Thunderstorm Watch

MARYLAND COUNTIES INCLUDED ARE

ALLEGANY             ANNE ARUNDEL        BALTIMORE
CALVERT              CARROLL             CHARLES
FREDERICK            HARFORD             HOWARD
MONTGOMERY           PRINCE GEORGES      ST. MARYS
WASHINGTON

A BROKEN LINE OF THUNDERSTORMS OVER SOUTHERN PENNSYLVANIA IS
MOVING TO THE SOUTHEAST LATE THIS AFTERNOON. THESE STORMS ARE
MOVING VERY QUICKLY AND HAVE A HISTORY OF PRODUCING DAMAGING WINDS
IN SOUTHWEST PENNSYLVANIA.

AS THESE STORMS CONTINUE TO MOVE SOUTHEAST ACROSS THE EASTERN WEST
VIRGINIA PANHANDLE... MARYLAND WEST OF THE BAY...THE DISTRICT OF
COLUMBIA AND NORTHERN VIRGINIA... GUSTY WINDS CAN BE EXPECTED.
SOME OF THE STRONGER STORMS MAY PRODUCE DAMAGING WINDS. STORMS
ARE EXPECTED TO WEAKEN AFTER 8 PM.

THOSE WITH OUTDOOR PLANS THIS AFTERNOON AND EARLY EVENING SHOULD
KEEP AN EYE ON THE SKY AND BE PREPARED TO SEEK SHELTER AS
THREATENING WEATHER APPROACHES.