NATIONAL WEATHER SERVICE: EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT WEDNESDAY…AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT WEDNESDAY FOR THE PHILADELPHIA WILMINGTON METRO CORRIDOR.
RECORD BREAKING HIGH TEMPERATURES…OVER 15 DEGREES ABOVE NORMAL… WITH VALUES JUST OVER 100 DEGREES…WILL SLOWLY EASE BACK THROUGH THE 90S THIS EVENING. TEMPERATURES WEDNESDAY AFTERNOON WILL APPROACH 100 DEGREES AND LIKELY EXCEED THE 98 DEGREE RECORD FOR THE DATE.
WHILE IT PROBABLY WILL BE 2-4 DEGREES COOLER THAN IT WAS TODAY… HIGHER HUMIDITY COULD COMPENSATE AND RESULT IN HEAT INDICES JUST AS HOT AS THOSE OF THIS PAST TUESDAY AFTERNOON.
THE EXCESSIVE HEAT SHOULD EASE ON THURSDAY AS THE ONSHORE FLOW INCREASES AND THE HOT RIDGE OF HIGH PRESSURE SHIFTS WESTWARD. IT WILL REMAIN QUITE HUMID AND THE 90 DEGREE HEAT WAVE WILL LIKELY CONTINUE INTO FRIDAY.
CONSIDERABLE CLOUDINESS ALONG WITH SCATTERED SHOWERS AND THUNDERSTORMS SHOULD BREAK THE HEAT SATURDAY. A MORE COMFORTABLE SUNDAY IS UPCOMING AS LOW PRESSURE AND A COOL FRONT PUSH OUT OFFSHORE. MORE