440
FXUS61 KPHI 241900
AFDPHI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
300 PM EDT TUE MAR 24 2026
WHAT HAS CHANGED
NO SIGNIFICANT CHANGES.
KEY MESSAGES
1. HIGH PRESSURE WILL BE IN CONTROL THROUGH WEDNESDAY NIGHT. A LOW
PRESSURE SYSTEM THEN DRAGS A COLD FRONT THROUGH THE AREA THURSDAY
NIGHT INTO FRIDAY. THIS COLD FRONT IS THEN FOLLOWED BY BELOW NORMAL
TEMPERATURES THIS WEEKEND.
DISCUSSION
KEY MESSAGE 1...HIGH PRESSURE WILL BE IN CONTROL THROUGH WEDNESDAY
NIGHT. A LOW PRESSURE SYSTEM THEN DRAGS A COLD FRONT THROUGH THE
AREA THURSDAY NIGHT INTO FRIDAY. THIS COLD FRONT IS THEN FOLLOWED BY
BELOW NORMAL TEMPERATURES THIS WEEKEND.
HIGH PRESSURE CONTINUES TO BUILD IN FROM THE WEST TODAY. OVERNIGHT,
IT WILL BE OVERHEAD. FOR TOMORROW, THE HIGH PRESSURE SYSTEM
STARTS TO MOVE OFFSHORE AND THIS CONTINUES INTO TOMORROW NIGHT.
THIS HIGH PRESSURE SYSTEM WILL LEAD TO TRANQUIL WEATHER
CONDITIONS THROUGH TOMORROW. WE SEE PLENTY OF SUNSHINE TODAY
BEFORE MORE CLOUDS ARRIVE TONIGHT AND TOMORROW. AFTER A
SEASONABLY CHILLY DAY TODAY, WE SEE A GRADUAL WARMING TREND
THROUGH THURSDAY. BY THURSDAY, TEMPERATURES REACH ABOVE NORMAL
AS WE CONTINUE TO SEE WARM AIR FILTER IN.
A LOW PRESSURE SYSTEM THAT ORIGINATES NEAR THE MIDWEST MOVES
NORTHEAST INTO CANADA. THIS LOW PRESSURE SYSTEM DRAGS A COLD
FRONT THROUGH THE REGION THURSDAY NIGHT THROUGH FRIDAY. AHEAD OF
THIS COLD FRONT, RAIN DEVELOPS THURSDAY NIGHT AND CONTINUES
THROUGH MUCH OF FRIDAY WITH THE PASSAGE OF THIS COLD FRONT.
RAINFALL WILL MOSTLY BE ON THE ORDER OF 0.25-0.5".
ONCE THE COLD FRONT EXITS THE REGION, WE SEE COLD AIR ADVECTION
FILTER IN THROUGH THE DAY FRIDAY WITH TEMPERATURES LOOKING TO
DECREASE THROUGH THE DAY. THIS IS FOLLOWED BY COOLER CONDITIONS FOR
THIS WEEKEND. HIGHS WILL ONLY BE IN THE 40S ON SATURDAY BEFORE
WARMING BACK UP CLOSER TO NORMAL ON SUNDAY. DRY THIS WEEKEND AS
ANOTHER HIGH PRESSURE SYSTEM BUILDS INTO THE REGION.
AVIATION /18Z TUESDAY THROUGH SUNDAY/
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.
REST OF TODAY...VFR. WINDS BECOMING SOUTHWESTERLY AT MOST
TERMINALS AROUND 19Z AT AROUND 5 KT. ACY MAY FAVOR A MORE
SOUTHERLY OR SOUTHEASTERLY DIRECTION. HIGH CONFIDENCE.
TONIGHT...VFR WITH INCREASING HIGH CLOUDS. SOUTH-SOUTHWESTERLY WINDS
GENERALLY 5 KT OR LESS. PERIODS OF LIGHT AND VARIABLE WINDS
OVERNIGHT. HIGH CONFIDENCE.
WEDNESDAY...VFR. A SOUTH-SOUTHWEST WIND AROUND 5 KT. MID AND HIGH
CLOUDS. HIGH CONFIDENCE.
OUTLOOK...
WEDNESDAY NIGHT THROUGH THURSDAY...VFR. NO SIGNIFICANT WEATHER.
THURSDAY NIGHT INTO FRIDAY...SUB-VFR LIKELY IN RA AND LOW CIGS.
IMPROVING CONDITIONS FRIDAY AFTERNOON AND EVENING.
SATURDAY THROUGH SUNDAY...VFR. NO SIGNIFICANT WEATHER.
MARINE
WINDS CONTINUE TO GRADUALLY SHIFT TO BE OUT OF THE SOUTH THROUGH
THIS EVENING AT AROUND 10 KT. OVERNIGHT, WINDS BECOME MORE OUT OF
THE SOUTH-SOUTHWEST AT AROUND 10 KT. SEAS OF 2-4 FEET FOR THE
REMAINDER OF TODAY BEFORE LESSENING TO 1-3 FEET OVERNIGHT.
A SOUTH-SOUTHWEST WIND TOMORROW MORNING BECOMES MORE SOUTHERLY
THROUGH THE DAY TOMORROW AT AROUND 10 KT WITH SEAS OF 1-3 FEET.
OUTLOOK...
THURSDAY THROUGH FRIDAY NIGHT...SCA CONDITIONS DEVELOP THURSDAY
AFTERNOON AND CONTINUE THROUGH FRIDAY. VSBY RESTRICTIONS IN RAIN AND
FOG THURSDAY NIGHT THROUGH EARLY FRIDAY NIGHT.
SATURDAY THROUGH SUNDAY...SUB-SCA CONDITIONS WITH FAIR WEATHER.
PHI WATCHES/WARNINGS/ADVISORIES
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...NONE.
DISCUSSION...GUZZO
AVIATION...GUZZO/MPS
MARINE...GUZZO
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