NPWPHI. AN SPS WILL BE REFRSHED TO HIGHLIGHT THE HEAT IN 
OTHER AREAS. 

&&

.LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/...
THE VERY HOT AND HUMID CONDITIONS EXPECTED TO CONTINUE INTO THE 
EXTENDED PERIOD. THE DOMINANT FEATURE NEXT WEEK IS THE H5 RIDGE 
SLOWLY CROSSING THE COUNTRY AND THE STORM TRACK REMAINING TO OUR 
NORTH. THE HPC FORECASTERS HAVE USED THE ECMWF PROGS OUT TO DAY 5 
TIME FRAME AND THEN CHOSE TO BLEND THE ECMWF WITH THE GFS ENSEMBLE 
MEANS FOR DAYS 6 AND 7. THIS BLENDING WAS TO DIMINISH THE 
AMPLIFICATION SEEN IN THE LATER PERIODS OF THE ECMWF. 

FOLLOWING THESE PROGS, I HAVE LEFT THE CHC FOR AFTERNOON SHOWER OR 
THUNDERSTORM IN FOR TUESDAY AS THERE IS A HINT OF A WEAKNESS IN THE 
NW FLOW MOVING TO THE NORTH. THE NEXT CHC FOR ANY RAIN WOULD BE IN 
THE WED NIGHT INTO THU TIME FRAME WHEN ANOTHER FRONT TRIES TO MOVE 
IN FROM THE NORTH. I HAVE USED SLIGHT CHC POPS FOR NOW. 

&&

.AVIATION...
AFTER THE AFTERNOON CU, WE BRING IN SOME CIRRUS OVERNIGHT AND A 
SHORT WINDOW OF MVFR VSBYS IN BR. THEN, THROUGH THE LATTER PART OF 
THE TAF PERIOD, WE BRING IN SOME MID CLOUDS AHEAD OF THE APPROACHING 
IMPULSE. WINDS LIGHT THROUGH THE PERIOD. 

&&

.MARINE...
WINDS AND SEAS ARE EXPECTED TO REMAIN BELOW SCA CRITERION THROUGH 
THE NEXT SEVERAL DAYS. EVENTUALLY WE MAY BE DEALING WITH FOG OVER 
THE WATERS IF THE DWPTS CLIMB HIGH ENOUGH AND WATER TEMPS DO NOT 
RISE SOME, BUT WE ARE NOT FORECASTING THAT FOR NOW. 

&&

.CLIMATE...
FOR THOSE WHO LIKE THE HOT AND HUMID WEATHER, IT LOOKS TO BE GO 
TIME THIS WEEKEND AND ESPECIALLY NEXT WEEK. AN EXTENDED PERIOD OF 
EXCESSIVE HEAT IS EXPECTED TO START THIS WEEKEND, WITH IT PEAKING 
DURING EARLY NEXT WEEK. WITH THE ANTICIPATED HOT AIRMASS TO BECOME 
MORE ESTABLISHED, WE WENT BACK INTO THE CLIMATE RECORDS TO TALLY UP 
THE RECORD HIGH TEMPERATURES. 

RECORD HIGH TEMPERATURES TO BEAT...

LOCATION          SUNDAY          MONDAY        TUESDAY
--------          ------          ------        -------

PHILADELPHIA    102 IN 1988     102 IN 1988     99 IN 1953
WILMINGTON      100 IN 1983     100 IN 1988    100 IN 1953
ALLENTOWN       101 IN 1988      99 IN 1999     98 IN 1999
READING         102 IN 1988     101 IN 1900     98 IN 1999 
MOUNT POCONO     93 IN 1988      91 IN 1999     92 IN 1999
TRENTON         102 IN 1988     100 IN 1988    100 IN 1953
ATLANTIC CITY   100 IN 1983      99 IN 1955     97 IN 1953
GEORGETOWN       97 IN 1992      98 IN 1988    100 IN 1953


RUNNING THROUGH THE NUMBERS, WE WENT AHEAD AND FOUND THE LAST DATE 
WHEN THE TEMPERATURE HIT 100 DEGREES OR HIGHER. THESE ARE AS FOLLOWS:

PHILADELPHIA...AUGUST 9, 2001 (101 DEGREES).

WILMINGTON.....JULY 19, 1999 (100 DEGREES).

ALLENTOWN......JULY 6, 1999 (100 DEGREES).

READING........AUGUST 14, 2002 (100 DEGREES).

TRENTON........AUGUST 2, 2001 (100 DEGREES).

ATLANTIC CITY..AUGUST 8, 2001 (100 DEGREES).

GEORGETOWN.....AUGUST 13, 2002 (100 DEGREES).


&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...EXCESSIVE HEAT WATCH FOR PAZ067>071 FROM 1 PM SUNDAY TO 9 PM 
     TUESDAY.
NJ...EXCESSIVE HEAT WATCH FOR NJZ015-017>019-027 FROM 1 PM SUNDAY 
     TO 9 PM TUESDAY.
DE...EXCESSIVE HEAT WATCH FOR DEZ001 FROM 1 PM SUNDAY TO 9 PM 
     TUESDAY.
MD...NONE.
MARINE...NONE.

&&