338 
ABUS30 KPHL 230224 AAA
SWSPA 

STATE WEATHER SUMMARY FOR PENNSYLVANIA
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1030 PM EDT MON JUL 22 2002

...A HEAT ADVISORY IS POSTED FOR TUESDAY AFTERNOON IN PHILADELPHIA 
AND THE URBANIZED SOUTHEAST CORNER OF PENNSYLVANIA... 

VERY WARM HUMID AIR WILL REMAIN OVER PENNSYLVANIA AHEAD OF A COLD 
FRONT APPROACHING FROM THE NORTHWEST. THE FRONT WILL CROSS LAKE ERIE 
OVERNIGHT AND MOVE THROUGH PENNSYLVANIA TUESDAY WITH SHOWERS AND 
THUNDERSTORMS LIKELY. A FEW SHOWERS WILL LINGER OVER THE SOUTHEAST 
CORNER OF THE STATE WEDNESDAY MORNING. HIGH PRESSURE OVER THE GREAT 
LAKES WILL BRING COOLER LESS HUMID AIR INTO PENNSYLVANIA WEDNESDAY.

THE LOW TEMPERATURE OVERNIGHT WILL RANGE FROM THE UPPER 60S IN 
NORTHERN PENNSYLVANIA TO THE MID AND UPPER 70S NEAR PHILADELPHIA. 
THE HIGH TEMPERATURE TUESDAY WILL RANGE FROM THE UPPER 70S ON THE 
NORTHWEST PLATEAU TO THE LOWER 90S NEAR PHILADELPHIA. THE HEAT AND 
HUMIDITY WILL BRING THE HEAT INDEX VALUE TO AROUND 100 DEGREES IN 
PHILADELPHIA AND SURROUNDING COMMUNITIES.

$$
MACH