Gloucester, New Jersey 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

605
FXUS61 KPHI 260554
AFDPHI

Area Forecast Discussion
National Weather Service Mount Holly NJ
154 AM EDT Sat Jul 26 2025

.SYNOPSIS...
A cold front continues sinking south across the area early this
morning as weak high pressure builds over New England. This
front will lift back north as a warm front on Sunday, ahead of
another cold front that will pass through later Sunday into
Sunday night. High pressure returns for Monday and Tuesday,
before yet another front passes through on Wednesday. High
pressure returns to close out next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
A cold front continues to push southward across the area early
this morning but will tend to stall out as it reaches southern
Delmarva. The front then takes on a more back-door orientation
on Saturday as the winds in its wake shift to easterly around 5
to 10 mph. This should bring a more stable and overall more
pleasant day, but dew points likely remain in the 70s across
Delmarva. 60s dew points should reach Philly and some parts of
northern NJ might drop into the upper 50s. However, with the
front nearby there will be some showers and thunderstorms
developing in the afternoon over central and western PA and a
few of these could reach our southern/western border by late
day. Otherwise the day should be mostly free of precipitation
with variable cloudiness. Highs mostly in the 80s with heat
indices ranging from the upper 80s north to the 95 to 100 range
over our southern Delmarva zones.

As we get into the evening and overnight period Saturday night,
there will be increasing chances for showers and thunderstorms,
especially over our eastern PA zones. The first round of
scattered diurnally driven storms will likely weaken Saturday
evening over eastern PA but then overnight another round of
showers/storms will be possible as an upper level disturbance
approaches from the west. Our highest POPs will again be over
eastern PA as POPs ramp up to 50-70 percent overnight. In terms
of hazards, severe weather is unlikely but with PWATs that
will be around 2.25+ inches heavy rain and localized flooding
will be possible from around the urban corridor and points
north/west. Dew points will also start to creep back up as the
winds turn more southerly. Expect lows ranging from the middle
to upper 60s over the southern Poconos and NW NJ to the low 70s
over SE PA, southern NJ, and Delmarva.

&&

.SHORT TERM /SUNDAY THROUGH SUNDAY NIGHT/...
Sunday and Sunday night remains the more active day of the
weekend as another low pressure system impacts the area with a
more pronounced shortwave aloft traversing across New England.
This will lead to a warm front lifting north across the area
early on Sunday before a cold front tracks through the area
later Sunday into Sunday night. After the convection from
Saturday night dies off, there should be a lull at least in the
morning hours before a second round of convection develops in
the afternoon ahead of the cold front. However, sunshine and
instability looks rather limited as there isn`t anticipated to
be much clearing in between the two impulses. As a result, there
is not anticipated to be much (if any) of a severe weather
threat, instead, this looks to be more of a hydro threat given
that PWATs will be in excess of 2.0-2.3". Meaning, that any
given shower or thunderstorm will be capable of highly efficient
rainfall rates. However, storm motion should be relatively
quick as the front approaches, so looking at localized instances
of flash flooding possible. WPC has maintained the MARGINAL
risk for excessive rainfall for our entire area as a result.
Convection will begin to wane into Sunday evening as the cold
front crosses through the area later Sunday night. High
temperatures will be in the 80s with lows in the 60s and 70s.

&&

.LONG TERM /MONDAY THROUGH FRIDAY/...
Little changes were made to the long term period as the first half
of the week will remain hot & humid whereas the latter half of the
week will be seasonably cool.

To start out the week, high pressure will be in control as the area
remains wedged in between frontal systems, so Monday is expected to
be mostly sunny and dry. Tuesday will feature increasing heat and
humidity causing chances for diurnal showers and thunderstorms to
develop in the afternoon, especially north and west of the urban
corridor. By Wednesday, another cold front looks to be on the
horizon, crossing through the area later Wednesday night. This will
bring a more widespread opportunity for showers and thunderstorms to
the area. Some of the machine learning guidance is hinting at
Wednesday possibly featuring some severe weather, so this will need
to be monitored in the coming days. Otherwise, the Monday through
Wednesday period will feature heat indicies around/in excess of 100
degrees, so will likely need to evaluate potential heat headlines for
these days. As of now, the `worst` day in terms of heat looks to be
Tuesday.

By Thursday and Friday, should begin to see some improvement around
the area as the cold front moves offshore and strong high pressure
sets up over the Great Lakes. This will usher in a much cooler and
refreshing airmass from Canada, where our temperatures are expected
to be as much as 5-10 degrees below average. Other than a few post-
frontal showers around on Thursday, this period should be dry.

&&

.AVIATION /05Z SATURDAY THROUGH WEDNESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Rest of overnight...Mainly VFR however there could be some
patchy fog that develops mainly over portions of eastern PA so
we keep the TEMPO for MVFR visbys in the RDG TAF. For the
remaining sites, patchy fog with sub VFR visbys can`t be ruled
out but the chances for this are lower so we keep it out of the
TAFs. Winds N/NW eventually shifting to north/northeast by
morning around 3 to 8 knots. Moderate confidence.

Saturday...Primarily VFR, though a few showers and isolated
thunderstorms possible (20-30% chance) in the afternoon at
around the I-95 TAF sites and points N/W. Given low chances and
low confidence, we continue to keep any mention of thunder out
of the TAFs. Winds out of the E/NE in the morning around 5-10
kt, becoming SE in the afternoon, still around 5-10 kt.
Moderate confidence.

Saturday night...Mainly VFR through the evening with increasing
chances for some restrictions overnight as chances for showers
and thunderstorms increase and there may also be a low stratus
deck that forms. Winds SSE around 5 knots. Moderate confidence.

Outlook...

Sunday through Sunday night...Mainly VFR conditions expected
with sub-VFR conditions probable at times. Several chances for
showers and thunderstorms on Saturday night and Sunday.

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

Tuesday through Wednesday...Primarily VFR with localized times of
sub-VFR conditions. A chance for showers and thunderstorms on
Tuesday and especially on Wednesday.

&&

.MARINE...
No marine headlines are expected through Saturday and Saturday
night though northeast winds could gust to around 20 knots as we
get into the day Saturday. Seas generally around 2 to 3 feet
through the period.

Outlook...

Sunday through Wednesday...No marine headlines expected. Winds
should largely remain 15 kt or less with seas around 2-3 feet. A
chance for showers and thunderstorms expected on Saturday
night, Sunday and Wednesday. Otherwise, fair weather.

Rip Currents...

For Saturday, the surface winds become northeast to east 10 to
20 mph. Breaking waves in the surf zone will average again
around 2 to 3 feet. With the onshore flow and 2 to 3 foot
breakers, elected with a MODERATE risk even with a period of 5
to 8 seconds. Winds are lighter and seas are lower at the
Delaware Beaches. Thus, a LOW risk for rip currents is in place
for Delaware.

For Sunday, flow turns more southerly but light, only around 5
to 10 MPH. Seas decrease and breakers of only 1 to 2 feet are
expected. Period will remain 5 to 8 seconds. As a result, a LOW
risk for rip currents is in place at all beaches.

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

&&

.TIDES/COASTAL FLOODING...
Due to the new moon occuring on July 24, some spotty minor
coastal flooding may occur again with the high tide tonight
into Saturday and Saturday night into Sunday. The most likely
locations for any spotty minor tidal flooding are along the
Delaware Bay, as well as around Cape May. No coastal flooding is
anticipated along the northeastern portion of Chesapeake Bay.

&&

.CLIMATE...
Record highs were tied at Reading and Trenton with record highs
broken at Allentown and Philadelphia. Rain cooled air will make
it hard for any record high maximums to be set for July 26th.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.

&&

$$

SYNOPSIS...DeSilva
NEAR TERM...AKL/Fitzsimmons/Hoeflich/RCM
SHORT TERM...DeSilva/Fitzsimmons
LONG TERM...DeSilva/Fitzsimmons
AVIATION...DeSilva/Fitzsimmons/Hoeflich/RCM
MARINE...DeSilva/Fitzsimmons/Hoeflich/RCM
TIDES/COASTAL FLOODING...
CLIMATE...