Stay inside a well built structure and keep away from windows.

THE NATIONAL WEATHER SERVICE HAS EXTENDED SEVERE THUNDERSTORM WATCH 440 TO INCLUDE THE FOLLOWING AREAS UNTIL 3 AM EDT THURSDAY IN PENNSYLVANIA THIS WATCH INCLUDES 7 COUNTIES IN NORTHWEST PENNSYLVANIA FOREST IN SOUTHWEST PENNSYLVANIA FAYETTE WESTMORELAND IN WEST CENTRAL PENNSYLVANIA ARMSTRONG CLARION INDIANA JEFFERSON PA IN WEST VIRGINIA THIS WATCH INCLUDES 2 COUNTIES IN NORTHERN WEST VIRGINIA MARION MONONGALIA THIS INCLUDES THE CITIES OF BROOKVILLE, CLARION, CONNELLSVILLE, FAIRMONT, FORD CITY, GREENSBURG, INDIANA, KITTANNING, LATROBE, MASONTOWN, MORGANTOWN, MURRYSVILLE, NEW KENSINGTON, PUNXSUTAWNEY, TIONESTA, AND UNIONTOWN.