Mount Laurel, New Jersey 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

320
FXUS61 KPHI 242300
AFDPHI

Area Forecast Discussion
National Weather Service Mount Holly NJ
700 PM EDT Thu Jul 24 2025

.SYNOPSIS...
High pressure remains in control through tonight. Low pressure
slides by to the north on Friday as a cold front moves through
late Friday night. This front will meander near the area on
Saturday, before lifting back north as a warm front on Sunday.
Another cold front will approach the area later Sunday ahead of
high pressure returning for Monday. Yet, another front appears
to loom on the horizon around midweek.

&&

.NEAR TERM /THROUGH FRIDAY/...
he southwest flow continues for tonight due to high pressure
offshore and a cold front to our north and west. This will
continue increase the heat and humidity resulting in a warm and
muggy night with lows generally in the low to mid 70s except
upper 60s over the Poconos.

***Dangerous heat and severe weather expected on Friday.***

For tomorrow, an upper-level ridge will be shifting offshore
while flattening with a high pressure at the surface to our
southeast. This combination will continue to usher in a hot and
humid airmass over the region. Temps will be building towards
the mid to upper 90s with dewpoints in the low 70s. This
combination will lead to heat index values increasing to
103-108. With higher temps forecast, we`ve upgraded the Heat
Advisory to warnings for Cumberland, Salem, and western Monmouth
counties in NJ. The remainder of the heat headlines remain the
same with Excessive Heat Warnings in effect for the urban
corridor and the rest of the area under a Heat Advisory during
the day Friday.

While heat is the initial focus point, we also are watching the
potential for severe weather. SPC has upgraded portions of the
region into a Slight Risk (2/5) for severe weather with the main
threat still remaining damaging winds. The risk is due to
widespread instability and moisture combining with the trigger
from the advancing cold front. The risk remains conditional on
the cold front dragging far enough south to impact the region.
The expected arrival of the front will be generally late
afternoon or early evening Friday which will help showers and
thunderstorms develop. Isolated to scattered showers and
thunderstorms move northwest to southeast. The greater potential
for severe weather will be northwest of the I-95 corridor just
due to the timing of the merger of instability and lift.

As for the flash flooding threat, parts of eastern Pennsylvania have
been put in a Marginal (1/4) in the Excessive Rainfall Outlook. This
is the area that has a better potential at more developed convection
which increases the heavy rain threat.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY NIGHT/...
The storm threat will begin to dwindle by Friday night with the loss
of diurnal heating. The actual cold front likely will not pass
through the area until late Friday night, perhaps into Saturday
morning especially further south. Lows will remain quite mild in the
mid 60s to mid 70s with clearing skies.

For Saturday and Sunday, a more complex and unsettled weather
pattern is in store as there has been quite a bit of variance on how
this pattern will eventually evolve. Latest guidance now suggests
that the cold front from Friday will settle south of the area,
leaving the region situated under a northwest flow regime on the
northern periphery of the upper ridge to our south. There will be
subtle impulses riding the ridge with the most significant impulse
occuring on Sunday into Sunday night as another cold front
approaches the area. So, while there will be several rounds of
showers and storms occuring throughout the weekend, the entirety of
the weekend does not look like a washout as a whole. At this point,
both the severe weather and flash flood threat is low throughout the
weekend, but will have to watch Sunday as there will be better
forcing with the front. However, it will be a rather cloudy and
unsettled period with seasonably warm temperatures in the upper 80s
to low 90s. Dew points won`t be overly oppressive, generally ranging
in the upper 60s to low 70s; resulting in heat indicies around 90-
100 degrees. Should fall short of any heat headline criteria
though. Lows at night will remain on the mild side in the upper 60s
to mid 70s.

&&

.LONG TERM /MONDAY THROUGH THURSDAY/...
The long term period as a whole will remain seasonably warm with
humid weather continuing through the middle portion of the week. To
start out the week, high pressure will be in control as the area
will remain wedged in between weather systems. This should be the
driest day of the period with mostly sunny skies. Temperatures and
humidity will begin to gradually increase through the mid-week
period causing diurnal showers and thunderstorms to develop each
afternoon especially north and west of the urban corridor. By
Wednesday, we`ll likely see another cold front approach the region
before crossing through by Wednesday night. This front should
support another round of showers/storms, albeit more widespread in
nature before the front moves off the coast on Thursday.

In terms of warmth, we`ll likely observe temperatures anywhere
between 5-10 degrees above normal through Wednesday, before
returning to more seasonable temperatures by Thursday. With the
increasing humidity by mid-week, will most likely surpass 100 degree
heat indicies for most of the interior outside of the Poconos - so
another round of heat headlines may be warranted by next week.

&&

.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Tonight...VFR. Southwest winds around 3 to 9 kts. High
confidence.

Friday...Primarily VFR with sub-VFR possible. 30-60% chance of
showers and thunderstorms in the late afternoon and evening
which may cause temporary VSBY/CIGs restrictions. Added PROB30
group for afternoon convection for the Lehigh Valley terminals
at 21z and KTTN at 22z. Lesser chances of convection further
south towards Philadelphia and the South Jersey terminals. Winds
out of the southwest around 10 kt, with some gusts up to 20 kt
possible at KACY. Moderate confidence.

Friday Night...A decaying and broken line of showers and
thunderstorms moving through may result in a brief period of
sub-VFR conditions until 06z, otherwise primarily VFR. Winds go
northwesterly after 00z with a frontal passage, around 5-10 kt.
Low confidence.

Outlook...

Saturday through Sunday night...Primarily VFR expected. A
chance for showers and thunderstorms possible each afternoon and
evening, which may cause temporary CIGs/VSBY restrictions to
sub-VFR.

Monday through Tuesday...VFR. No significant weather expected.

&&

.MARINE...
No marine headlines are in effect through tonight. South-
southwest winds around 10-15 kt through the day. Winds may
occasionally gust up to 20 kt this afternoon into this evening
along the northern NJ coast. Seas around 2-3 feet. Fair weather.

Outlook...

Friday night through Tuesday...No marine headlines expected. Winds
will largely remain below 15 kt with seas around 2-3 feet. A chance
for showers and thunderstorms on both Saturday/Sunday afternoon and
evening, with fair weather returning for Monday and Tuesday.

Rip Currents...

On Friday, south to southwest winds 10 to 15 mph. Breaking waves
in the surf zone will average around 2 feet. The prevailing
swell will become shorter around 5 seconds. As a result, there
is a LOW risk for the development of dangerous rip currents for
both the Jersey Shore and the Delaware Beaches.

For Saturday, the surface winds become northeast to east 10 to
15 mph. Breaking waves in the surf zone will average again around
2 feet. Swells should remain low enough and therefore continued
with a LOW risk for the development of dangerous rip currents
for both the Jersey Shore and the Delaware Beaches.

For specific beach forecasts, visit weather.gov/beach/phi

&&

.TIDES/COASTAL FLOODING...
Due to the new moon occuring today (July 24), some spotty minor
coastal flooding may occur again with the high tide tonight along
Delaware Bay, the tidal Delaware River as well as around Cape
May. No coastal flooding is anticipated along the northeastern
portion of Chesapeake Bay.

&&

.CLIMATE...
Near record breaking temperatures are forecast for Friday and
Friday night into Saturday morning. Records for our climate
sites are listed below:

Record High Temperatures
                          July 25
Site                  Record/Year
Allentown (ABE)           95/1939, 1949, 1999, & 2016
AC Airport (ACY)          99/2010
AC Marina (55N)           96/1999
Georgetown (GED)          99/2010
Mount Pocono (MPO)        90/1999
Philadelphia (PHL)        97/2016
Reading (RDG)             97/2016
Trenton (TTN)             97/1999
Wilmington (ILG)          96/1987 & 2016

Record Warmest Low Temperatures
                          July 26
Site                  Record/Year
Allentown (ABE)           76/1995
AC Airport (ACY)          77/1949
AC Marina (55N)           78/1995
Georgetown (GED)          78/1985
Mount Pocono (MPO)        69/1937
Philadelphia (PHL)        80/1995
Reading (RDG)             77/1995
Trenton (TTN)             78/1899
Wilmington (ILG)          78/1995

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Extreme Heat Warning from 10 AM to 9 PM EDT Friday for PAZ070-
     071-104-106.
     Heat Advisory from 10 AM to 9 PM EDT Friday for PAZ054-055-
     060>062-101>103-105.
NJ...Extreme Heat Warning from 10 AM to 9 PM EDT Friday for NJZ010-
     012-013-015>019-021.
     Heat Advisory from 10 AM to 9 PM EDT Friday for NJZ001-007>009-
     014-020-022>027.
DE...Extreme Heat Warning from 10 AM to 9 PM EDT Friday for DEZ001.
     Heat Advisory from 10 AM to 9 PM EDT Friday for DEZ002>004.
MD...Heat Advisory from 10 AM to 9 PM EDT Friday for MDZ012-015-019-
     020.
MARINE...None.

&&

$$

SYNOPSIS...DeSilva
NEAR TERM...Deal/DeSilva/Fitzsimmons/Hoeflich/MJL
SHORT TERM...DeSilva
LONG TERM...DeSilva
AVIATION...Deal/DeSilva/Fitzsimmons/Guzzo/Hoeflich/MJL
MARINE...Deal/DeSilva/Fitzsimmons/Gorse/Guzzo/Staarmann
TIDES/COASTAL FLOODING...Gorse
CLIMATE...Staarmann