922  
FXUS61 KPHI 040521  
AFDPHI  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
121 AM EDT FRI JUL 4 2025  
   
SYNOPSIS  
 
A REINFORCING COLD FRONT WILL DROP THROUGH THE REGION TONIGHT.  
DRY HIGH PRESSURE WILL BUILD INTO THE REGION ON FRIDAY AND  
REMAIN IN CONTROL THROUGH THE WEEKEND, PROVIDING SEASONABLE  
TEMPERATURES AND TRANQUIL WEATHER CONDITIONS. WARMER, MORE  
HUMID, AND UNSETTLED CONDITIONS WILL RETURN EARLY NEXT WEEK.  
 
 
   
NEAR TERM /THROUGH TODAY/  
 
FOR THE REST OF TONIGHT, THE FRONT WILL MAKE ITS WAY OFF THE  
COAST, GIVING WAY TO A MOSTLY CLEAR SKY. LOWS SHOULD FALL INTO  
THE 50S AND 60S.  
 
FOR INDEPENDENCE DAY, A RATHER PLEASANT AND DRY DAY IS  
EXPECTED. A HIGH PRESSURE SYSTEM BUILDS INTO THE REGION AND WILL  
KEEP THE DAY DRY AND SUNNY. THE POST FRONTAL REGIME AFTER  
TODAY'S COLD FRONT WILL TRANSLATE TO TEMPERATURES MAINLY IN THE  
LOW TO MID 80S AND COMFORTABLE HUMIDITY VALUES WITH DEW POINTS  
IN THE 50S.  
 
 
   
SHORT TERM /TONIGHT THROUGH SUNDAY NIGHT/  
 
DRY AND SEASONABLE WEATHER CONDITIONS EXPECTED FOR THE REST OF  
THE HOLIDAY WEEKEND.  
 
HIGH PRESSURE OVERHEAD FRIDAY NIGHT WILL RESULT IN CLEAR SKIES  
AND CALM WINDS, A GREAT SETUP FOR STRONG RADIATIONAL COOLING  
NIGHT. AS A RESULT, WE WILL LIKELY SEE THE COOLEST AND MOST  
COMFORTABLE SUMMER NIGHT IN QUITE SOME TIME, WITH LOWS IN THE  
MID 50S TO MID 60S AND A DRY AIRMASS IN PLACE.  
 
THE BROAD RIDGING WILL DOMINATE THE REGION OVER THE WEEKEND,  
WHICH WILL KEEP CONVECTION SUPPRESSED AND TEMPERATURES NEAR  
NORMAL, THOUGH TEMPERATURES WILL START TRENDING UPWARD A COUPLE  
DEGREES EACH DAY. SATURDAY WILL BE ANOTHER VERY PLEASANT DAY,  
SIMILAR TO FRIDAY AS THE SURFACE HIGH SLIDES OVERHEAD. HIGH  
TEMPERATURES REMAINING IN THE MID TO UPPER 80S UNDER SUNNY SKIES  
AND DEWPOINTS MIXING OUT NICELY ONCE AGAIN TO PROVIDE US WITH  
SOME LOW HUMIDITY. BY SUNDAY, HIGH PRESSURE WILL BE LOCATED  
OFFSHORE, RESULTING IN SOME RETURN FLOW AND THUS A MORE SENSIBLE  
INCREASE IN TEMPERATURES AND HUMIDITY LEVELS COMPARED TO THE  
PREVIOUS DAYS. HIGHS SUNDAY IN THE UPPER 80S TO LOW 90S. LOWS IN  
THE 60S TO NEAR 70 DEGREES BOTH NIGHTS.  
 
 
   
LONG TERM /MONDAY THROUGH THURSDAY/  
 
RETURN FLOW WILL CONTINUE INTO THE FIRST HALF OF NEXT WEEK AS  
UPPER RIDGING SHIFTS OUT TO SEA AND SOME TROUGHING DEVELOPS NEAR  
THE GREAT LAKES. THIS WILL RESULT IN MORE UNSETTLED CONDITIONS  
DEVELOPING AGAIN, WITH MOSTLY DIURNALLY DRIVEN CHANCES FOR  
SHOWERS AND THUNDERSTORMS. ANY SEVERE THREATS REMAIN TO BE SEEN.  
THE GREATEST CHANCES FOR SHOWERS AND STORMS CURRENTLY LOOKS TO  
BE TUESDAY AND WEDNESDAY. EXPECT TEMPERATURES TO START TRENDING  
SLIGHTLY ABOVE NORMAL EARLY NEXT WEEK AS WELL, THOUGH THEY  
SHOULD MODERATE SOME TOWARD THE MIDDLE OF THE WEEK. HIGHS IN THE  
MID 80S TO LOW 90S AND LOWS IN THE MID 60S TO MID 70S, ALONG  
WITH INCREASING HUMIDITY.  
 
 
   
AVIATION /05Z FRIDAY THROUGH TUESDAY/  
 
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,  
KILG, KMIV, KACY AND SURROUNDING AREAS.  
 
THROUGH 12Z...VFR & SKC. PATCHY AREAS OF MIST POSSIBLE AT  
KRDG/KABE. WEST-NORTHWEST WINDS AROUND 5 KT OR LESS. HIGH  
CONFIDENCE.  
 
FRIDAY...VFR & SKC. NORTHWEST WINDS AROUND 5-10 KT. SEA BREEZE  
POSSIBLE AT KACY, WHICH MAY CAUSE WINDS TO BECOME SOUTHERLY IN  
THE AFTERNOON. HIGH CONFIDENCE.  
 
FRIDAY NIGHT...VFR & SKC. NORTH-NORTHWEST WINDS AROUND 3 KT OR  
LESS, BECOMING VARIABLE/CALM AT TIMES. HIGH CONFIDENCE.  
 
OUTLOOK...  
 
SATURDAY THROUGH SUNDAY...VFR. NO SIGNIFICANT WEATHER.  
 
MONDAY AND TUESDAY...PREVAILING VFR. ISOLATED THUNDERSTORMS  
POSSIBLE.  
 
 
   
MARINE  
 
NO MARINE HEADLINES ARE IN EFFECT THROUGH FRIDAY. NORTH-  
NORTHWEST WINDS AROUND 10-15 KT WITH THE PASSING OF A COLD  
FRONT, BECOMING SOUTH-SOUTHEAST WINDS AROUND 5-10 KT IN THE  
AFTERNOON. SEAS OF 2-3 FEET. FAIR WEATHER.  
 
OUTLOOK...  
 
SATURDAY THROUGH MONDAY...NO MARINE HAZARDS EXPECTED.  
 
RIP CURRENTS...  
 
FOR INDEPENDENCE DAY, NORTH WINDS AROUND 10 MPH IN THE MORNING  
WILL BECOME SOUTHEAST AROUND 5-10 MPH IN THE AFTERNOON. BREAKING  
WAVE HEIGHTS OF 1-2 FEET WITH A SSE SWELL OF AROUND 2 FEET AND  
A 6-8 SECOND PERIOD. AS A RESULT, HAVE OPTED TO GO WITH A LOW  
RISK FOR DANGEROUS RIP CURRENTS FOR ALL BEACHES.  
 
FOR SATURDAY, LIGHT NORTHEAST WINDS IN THE MORNING WILL BECOME  
SOUTH-SOUTHEAST AROUND 10 MPH IN THE AFTERNOON. BREAKING WAVE  
HEIGHTS GENERALLY 1-2 FEET WITH A SE SWELL OF AROUND 2 FEET AND  
A 6-8 SECOND PERIOD. AS A RESULT, WILL MAINTAIN A LOW RISK FOR  
DANGEROUS RIP CURRENTS FOR ALL BEACHES.  
 
 
   
PHI WATCHES/WARNINGS/ADVISORIES  
 
PA...NONE.  
NJ...NONE.  
DE...NONE.  
MD...NONE.  
MARINE...NONE.  
 
 
 
 
 
SYNOPSIS...MJL/STAARMANN  
NEAR TERM...DESILVA/GUZZO/RCM  
SHORT TERM...MJL/STAARMANN  
LONG TERM...MJL/STAARMANN  
AVIATION...DESILVA/GUZZO/MJL/RCM  
MARINE...DESILVA/GUZZO/MJL  
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