Alert archive / New Jersey / Areal Flood Warnings in 2026

Areal Flood Warning 13, NWS Philadelphia/Mount Holly

August 3, 2026Mercer County, New Jersey; Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood warning at Aug 3, 2026, 12:01 PM EDT for Mercer County, New Jersey; Bucks County, Pennsylvania. It was in force for 74 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 3, 2026, 12:01 PM EDT (16:01 UTC)
Expired
Aug 3, 2026, 1:15 PM EDT
In force
74 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Mercer County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 44 km from the middle of the area, began a volume at 16:02 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 4.0 hours before the alert went out and 189 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2026-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1129 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2026-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 250 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1129 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
460 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
250 m²/s²
0-3 km storm-relative helicity
249 m²/s²
Significant tornado parameter
1.3
Supercell composite
6.7

Open this sounding in Storm Lab

The text

As transmitted.

582 
WGUS41 KPHI 031601
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1201 PM EDT Mon Aug 3 2026

NJC021-PAC017-031715-
/O.NEW.KPHI.FA.W.0013.260803T1601Z-260803T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mercer NJ-Bucks PA-
1201 PM EDT Mon Aug 3 2026

...FLOOD WARNING IN EFFECT UNTIL 115 PM EDT THIS AFTERNOON...
...REPLACES FLASH FLOOD WARNING...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Portions of central New Jersey, including the following 
  county, Mercer and southeast Pennsylvania, including the following 
  county, Bucks.

* WHEN...Until 115 PM EDT.

* IMPACTS...It will take several hours for all the water from these 
  storms to work through local drainage systems in urban areas.

* ADDITIONAL DETAILS...
  - At 1157 AM EDT, Doppler radar indicated heavy rain due to
    thunderstorms. Flooding is ongoing or expected to begin
    shortly in the warned area. Between 1.5 and 3.5 inches of
    rain have fallen.
  - Additional rainfall amounts up to 0.5 inches are possible in
    the warned area.
  - Some locations that may experience flooding include...
    Bensalem, Bristol, Newtown, Tullytown, Langhorne and
    Levittown.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

&&

LAT...LON 4016 7471 4013 7474 4013 7476 4012 7478
      4013 7482 4010 7484 4008 7486 4007 7493
      4005 7497 4006 7498 4008 7496 4010 7496
      4012 7496 4013 7500 4017 7506 4029 7486


$$

Deal

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood warning went out at Aug 3, 3:05 AM EDT, 8 hours 56 minutes earlier. Its key messages:

  • 1. Showers and thunderstorms remain across the area today with the potential for areas of heavy rain leading to a risk of flash flooding. There is also some risk for strong to severe thunderstorms. 2. A warm front is expected to lift through the region Tuesday Night into Wednesday, bringing the next chance for showers and storms. 3. For the later half of the week, we will have a warm, humid, and at times stormy pattern in place.
Area forecast discussion, Aug 3, 3:05 AM EDT, 8 hours 56 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
305 AM EDT Mon Aug 3 2026

.WHAT HAS CHANGED...
Updated Key Message 1.

&&

.KEY MESSAGES...
1. Showers and thunderstorms remain across the area today with
the potential for areas of heavy rain leading to a risk of flash
flooding. There is also some risk for strong to severe thunderstorms.

2. A warm front is expected to lift through the region Tuesday Night
into Wednesday, bringing the next chance for showers and storms.

3. For the later half of the week, we will have a warm, humid, and
at times stormy pattern in place.

&&

.DISCUSSION...
KEY MESSAGE 1...Showers and thunderstorms remain across the
area today with the potential for areas of heavy rain leading to
a risk of flash flooding. There is also some risk for strong to
severe thunderstorms.

An upper trough and surface low pressure system will move across
New York and New England later today and tonight. An associated
front will cross the area tonight. These synoptic factors along
with the very warm and humid air mass will bring opportunities
for showers and thunderstorms today and tonight.

Today, a cold front will be approaching the region. There continues
to be a signal for ripples of energy along the front. Also, in
the upper-levels, a jet streak will be overhead with our area in
the right entrance region which allows for additional forcing
and ascent for our area. Showers and thunderstorms look to be
ongoing into tomorrow morning with an increase in the coverage
again during the afternoon and evening.

PWAT values are very high across the area and we've already
issued several flash flood warnings across the area tonight.
The WPC outlook continues with SLIGHT risk (2 of 5) for
Excessive Rainfall for most areas today. Surrounding the SLIGHT
risk is a MARGINAL risk. The Flash flood Watch continues for
many areas until 11PM tonight. Total rainfall will range 1 to 3
inches in many areas but locally 4 or 5 inches could occur.

In terms of the severe weather risk today, uncertainty remains
around the exact extent of instability present due to cloud
cover and the round of showers/thunderstorms around during the
morning. If enough heating develops during the course of the
day, then this combined with some increase in shear ahead of the
front could lead to at least some severe thunderstorm risk. The
Storm Prediction Center has highlighted an area across New
Jersey and extreme east Pennsylvania for a Marginal risk (level
1 out of 5) for isolated severe thunderstorms with the primary
risk being damaging wind gusts.

KEY MESSAGE 2...A warm front is expected to lift through the region
Tuesday Night into Wednesday, bringing the next chance for showers
and storms.

Once the current system gets east of our region, the next thing to
watch is a warm front slowly lifting north over our region. The most
likely time period for this frontal passage is Tuesday night into
Wednesday, leaving the day time on Tuesday relatively dry. However,
at least one model is showing a very fast warm frontal passage with
the front north of our region by late Wednesday Night. In this fast
solution, the pattern is odd, depicting a very pronounced mid and
upper level short wave ridge in place throughout the day. This
pattern isn't favorable for fast frontal passages. Therefore, have
favored the blend of guidance, which favors the slower solution.

As far as hazards, the primary hazard is likely to be heavy rain
leading to flash flooding. There will likely be significant low
level moisture advection behind the front, increasing the risk for
heavy rain. That combined with the fact that storm motions are
likely to be quite slow (less than 20 mph), increases the risk for
flash flooding. One factor which we won't know until late Monday is
how much antecedent conditions will play a role in the flash
flooding threat - areas that get heavy rain through the day on
Monday will have little opportunity for the water to drain before
this next round of rain chances.

The severe threat is less clear. This will be dependent on the
timing of the front - if the frontal passage, and thus prime period
for any showers and storms is during the daylight hours when
instability is maximized, there will be some threat for damaging
winds. Some model soundings show a very dry mid layer, increasing
the threat for downbursts.

KEY MESSAGE 3...For the later half of the week, we will have a warm,
humid, and at times stormy pattern in place.

Once the mid week warm front moves north of our region, we will
likely be sandwiched between a Bermuda centered well to our east,
and a nearly stationary mid level trough axis centered over the
Western Great Lakes region.

The net result of this is that our region will have warm and moist
southwesterly flow in place for multiple days. As such, expect hot
and humid conditions. Additionally, there could be daily rain
chances, from two different sources. First, if there is any shower
or storm development on the sea breeze in the afternoon. Secondly,
there could be some embedded very small short wave troughs that
propagate northeastward over our region during this time.

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Overnight...Largely MVFR to IFR but brief periods of sub-IFR
during the most intense showers/tstms. Showers/tstms seem to be
redeveloping across most of Delmarva/south NJ and these should
move North and affect the Delaware Valley TAF sites thru dawn.
Others will move across KRDG/KABE. Light South winds. Low/medium
confid.

Monday...IFR to MVFR. During the morning, ceilings look to lift a
bit to MVFR. There is VCSH at the Lehigh Valley terminals given
shower coverage. The remainder of the terminals have prevailing SHRA
and some PROB30 groups, mainly 18Z-21Z for potential
thunderstorms. Visibility restrictions are also expected with
any showers or thunderstorms impacting the terminals. Low
confidence for the convection with medium confidence on the
ceiling restrictions.

Outlook...

Monday Night and Tuesday...Prevailing VFR. Some lingering showers
and storms Monday Night may briefly lower conditions to MVFR.

Tuesday Night through Friday...Periods of MVFR or lower conditions
possible, primarily in the afternoon and evening periods each day,
due to showers and storms.

&&

.MARINE...
A Small Craft Advisory remains in effect for all of the nearshore
Atlantic coastal waters through 6 AM Tuesday. South flow continues
today with wind gusts up to 30 kt. Seas will be mostly 5 to 8 feet.
Scattered gusty thunderstorms are possible today, particularly
in the afternoon and evening. A slow decrease winds winds and
seas tonight with sub-SCA probable by dawn. Fair overnight.

Outlook...

Tuesday and Wednesday...Winds and seas should stay below SCA criteria.

Thursday and Friday...Currently forecasting winds and seas to stay
below SCA criteria, but wind gusts near 25 kt are possible both
days.

Rip Currents...

There is a HIGH risk for the formation of dangerous rip currents
along the NJ coast today due to long period swells with surf heights
near or above 3 feet. For the Delaware Beaches, there is a MODERATE
risk for the formation of dangerous rip currents.

Looking ahead to Tuesday, surf heights should decrease, so the risk
for the formation of dangerous rip currents is expected to be MODERATE
along the NJ coast, and LOW for the Delaware Beaches.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flood Watch through this evening for PAZ060>062-070-071-
     101>106.
NJ...Flood Watch through this evening for NJZ001-007>010-012>019.
     High Risk for Rip Currents from 8 AM EDT this morning through this
     evening for NJZ014-024>026.
DE...Flood Watch through this evening for DEZ001.
MD...None.
MARINE...Small Craft Advisory until 6 AM EDT Tuesday for ANZ450>455.

&&

DISCUSSION...AKL/Guzzo/Johnson/po
AVIATION...AKL/Guzzo/Johnson/po
MARINE...Guzzo/Johnson/po
Hazardous weather outlook, Aug 3, 5:07 AM EDT, 6 hours 54 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
507 AM EDT Mon Aug 3 2026

MDZ012-015-019-020-041000-
Kent MD-Queen Annes-Talbot-Caroline-
507 AM EDT Mon Aug 3 2026

This Hazardous Weather Outlook is for northeast Maryland.

.DAY ONE...Today and tonight.

Showers and thunderstorms are expected today with damaging winds and
flash flooding possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

In the hours before

Local storm report, Aug 3, 11:14 AM EDT, 47 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1114 AM EDT Mon Aug 3 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1105 AM     Rain             1 SSE Fairview          40.01N 74.94W
08/03/2026  M3.83 Inch       Burlington         NJ   NWS Employee

            Updates previous rain report. Rainfall total
            as of 11:05 AM. The rain has now stopped as
            of the time of the report.

&&

NG
Local storm report, Aug 3, 11:17 AM EDT, 44 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1117 AM EDT Mon Aug 3 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1115 AM     Rain             Delran                  40.02N 74.95W
08/03/2026  M3.65 Inch       Burlington         NJ   Public

            Public report of 3.65 inches in Delran since
            midnight. Time from report.

&&

NG
Local storm report, Aug 3, 11:39 AM EDT, 22 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1139 AM EDT Mon Aug 3 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0959 AM     Flash Flood      Fairview                39.90N 75.11W
08/03/2026                   Camden             NJ   Dept of Highways

            NJ DOT: Flooding on I-676 Northbound At Exit
            1 - Collings Ave (Camden), 1 left lane of 3
            lanes closed.

&&

NG
Local storm report, Aug 3, 11:42 AM EDT, 19 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1142 AM EDT Mon Aug 3 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1121 AM     Flash Flood      1 SW North Brunswick    40.45N 74.49W
08/03/2026                   Middlesex          NJ   Dept of Highways

            NJ DOT: Flooding on US 1 Northbound Ramp To
            NJ 91/Jersey Ave (North Brunswick Twp), ramp
            lane closed.

&&

NG
Local storm report, Aug 3, 11:43 AM EDT, 18 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
1143 AM EDT Mon Aug 3 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 AM     Flash Flood      Mount Airy              40.06N 75.19W
08/03/2026                   Philadelphia       PA   Public

            Minor street flooding was reported along Mt
            Pleasant Avenue. Time estimated from radar.

&&

SFJ
Local storm report, Aug 3, 11:47 AM EDT, 14 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Mount Holly NJ
1147 AM EDT Mon Aug 3 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 AM     Flash Flood      1 ESE Somerville        40.57N 74.61W
08/03/2026                   Somerset           NJ   911 Call Center

            Veterans Memorial Drive was impassable due
            to flood water. Time from report.

0350 AM     Flash Flood      1 N Hatboro             40.19N 75.11W
08/03/2026                   Montgomery         PA   911 Call Center

            Water rescue due to a car stranded in flood
            water at the intersection of Bright Road and
            Blair Mill Road. Time from report.

0443 AM     Flash Flood      Morris Twp              40.78N 74.46W
08/03/2026                   Morris             NJ   911 Call Center

            Woodland Ave was closed due to flooding. The
            road has since reopened. Time from report.

0444 AM     Flash Flood      Dover                   40.89N 74.55W
08/03/2026                   Morris             NJ   911 Call Center

            Union Street flooded in Dover. Time from
            report.

0507 AM     Flash Flood      1 SSW Summerdale        40.02N 75.10W
08/03/2026                   Philadelphia       PA   Other Federal

            The gage at Frankford Creek in Frankford
            went up 5.0 feet in 47 mins to go above FS.

0530 AM     Flash Flood      Pennsauken              39.95N 75.06W
08/03/2026                   Camden             NJ   Dept of Highways

            NJ DOT - Flooding on US 130 Both Directions
            South of CR 612/Browning Rd. All lanes
            closed north and southbound.

0552 AM     Flash Flood      Cinnaminson             40.00N 74.99W
08/03/2026                   Burlington         NJ   Dept of Highways

            NJ DOT - TOC South: Flooding on US 130
            Northbound South of Riverton Rd. All lanes
            closed.

0554 AM     Flash Flood      1 WSW King of Prussia   40.09N 75.40W
08/03/2026                   Montgomery         PA   Dept of Highways

            Flooding on I-76 eastbound at Exit 328: US
            202 SOUTH - WEST CHESTER TO US 422 WEST.
            Ramp restriction.

0600 AM     Rain             Readington Twp          40.61N 74.78W
08/03/2026  M1.42 Inch       Hunterdon          NJ   Trained Spotter

            overnight total.

0623 AM     Flash Flood      Camden                  39.95N 75.12W
08/03/2026                   Camden             NJ   Dept of Highways

            NJ DOT: Flooding on US 30 Eastbound At
            I-676/Ben Franklin Bridge (Camden), All
            lanes closed.

0626 AM     Flash Flood      Westville               39.87N 75.13W
08/03/2026                   Gloucester         NJ   Dept of Highways

            NJ DOT: Flooding on US 130 Both Directions
            between South of CR 551 (Brooklawn) and CR
            551 (Brooklawn), All lanes closed north and
            south bound.

0630 AM     Flash Flood      2 NNW Bryn Athyn        40.16N 75.08W
08/03/2026                   Montgomery         PA   911 Call Center

            Masons Mill Road closed due to flooding.
            Time from report.

0730 AM     Rain             Edison                  40.53N 74.38W
08/03/2026  M1.70 Inch       Middlesex          NJ   Broadcast Media

            Rainfall total from midnight to 7:30 AM.

0730 AM     Rain             South River             40.45N 74.38W
08/03/2026  M2.67 Inch       Middlesex          NJ   Trained Spotter

            Rainfall total as of 7:30 AM.

0845 AM     Rain             East Nottingham Twp.    39.76N 75.98W
08/03/2026  M2.40 Inch       Chester            PA   Trained Spotter

0902 AM     Flash Flood      1 ENE Parkside          39.94N 75.08W
08/03/2026                   Camden             NJ   Dept of Highways

            NJ DOT - TOC South: Flooding on US 130
            Southbound At NJ 38 (Pennsauken Twp), 2
            right lanes of 3 lanes closed.

0906 AM     Flash Flood      1 NNW Holmesburg        40.05N 75.03W
08/03/2026                   Philadelphia       PA   Other Federal

            The USGS gage on the Pennypack Creek at
            Philadelphia rose 1.5 feet in 15 mins to go
            above flood stage.

0920 AM     Non-Tstm Wnd Dmg 1 SSE South River       40.43N 74.37W
08/03/2026                   Middlesex          NJ   Trained Spotter

            Large tree down.

0931 AM     Flash Flood      Cinnaminson             40.00N 74.99W
08/03/2026                   Burlington         NJ   911 Call Center

            Route 130 North at the intersection of
            Meetinghouse Road is flooded. Time from
            report.

0933 AM     Flash Flood      1 E Parkside            39.93N 75.08W
08/03/2026                   Camden             NJ   Dept of Highways

            NJ DOT: Flooding on US 130 Southbound At US
            30 (Pennsauken Twp), All lanes closed.

0947 AM     Flash Flood      1 SSW Heathcote         40.38N 74.58W
08/03/2026                   Middlesex          NJ   Dept of Highways

            NJ DOT: Flooding on US 1 Southbound At
            Raymond Rd (South Brunswick Twp), ramp lane
            closed.

0947 AM     Flash Flood      1 SSW Riverside         40.03N 74.97W
08/03/2026                   Burlington         NJ   911 Call Center

            Road flooding at the intersection of 5th
            Street and Ithaca Ave. Time from report.

0959 AM     Flash Flood      Fairview                39.90N 75.11W
08/03/2026                   Camden             NJ   Dept of Highways

            NJ DOT: Flooding on I-676 Northbound At Exit
            1 - Collings Ave (Camden), 1 left lane of 3
            lanes closed.

1000 AM     Flash Flood      Mount Airy              40.06N 75.19W
08/03/2026                   Philadelphia       PA   Public

            Minor street flooding was reported along Mt
            Pleasant Avenue. Time estimated from radar.

1001 AM     Flash Flood      Lenola                  39.96N 74.99W
08/03/2026                   Burlington         NJ   911 Call Center

            Route 73 South has a right lane closure due
            to flooding on the road near the
            intersection of Morris Ave. Time from
            report.

1012 AM     Flash Flood      1 NW Cherry Hill Twp    39.94N 75.04W
08/03/2026                   Camden             NJ   Dept of Highways

            NJ DOT: Flooding on NJ 38 Both Directions
            East of CR 625/Longwood Av (Cherry Hill
            Twp), All lanes closed eastbound; All lanes
            closed westbound.

1043 AM     Flash Flood      1 WSW North Brunswick   40.46N 74.49W
08/03/2026                   Middlesex          NJ   Dept of Highways

            NJ DOT: Flooding on NJ 91 Both Directions At
            Huron Rd (North Brunswick Twp), 1 right lane
            of 2 lanes, right shoulder closed
            northbound; 1 right lane of 2 lanes, right
            shoulder closed southbound.

1048 AM     Flash Flood      Atlantic Highlands      40.42N 74.04W
08/03/2026                   Monmouth           NJ   Broadcast Media

            Bay Ave in Highlands is flooded with 8
            inches of water on the road.

1105 AM     Rain             1 SSE Fairview          40.01N 74.94W
08/03/2026  M3.83 Inch       Burlington         NJ   NWS Employee

            Updates previous rain report. Rainfall total
            as of 11:05 AM. The rain has now stopped as
            of the time of the report.

1115 AM     Rain             Delran                  40.02N 74.95W
08/03/2026  M3.65 Inch       Burlington         NJ   Public

            Public report of 3.65 inches in Delran since
            midnight. Time from report.

1121 AM     Flash Flood      1 SW North Brunswick    40.45N 74.49W
08/03/2026                   Middlesex          NJ   Dept of Highways

            NJ DOT: Flooding on US 1 Northbound Ramp To
            NJ 91/Jersey Ave (North Brunswick Twp), ramp
            lane closed.

&&

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 2, 11:20 PM EDTFlash Flood WarningPHIWarren4 hr
Aug 3, 12:05 AM EDTFlash Flood WarningPHIHunterdon, Warren3 hr
Aug 3, 12:36 AM EDTSpecial Marine WarningPHI84 min
Aug 3, 2:50 AM EDTFlash Flood WarningPHIHunterdon, Mercer, Morris, Somerset4 hr
Aug 3, 3:05 AM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Somerset40 min
Aug 3, 4:41 AM EDTFlash Flood WarningPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Somerset2 hr
Aug 3, 5:59 AM EDTFlash Flood WarningPHIMiddlesex, Somerset4 hr
Aug 3, 7:02 AM EDTAreal Flood WarningPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Somerset3 hr
Aug 3, 8:21 AM EDTSpecial Marine WarningPHI69 min
Aug 3, 9:08 AM EDTFlash Flood WarningPHIBurlington, Camden, Gloucester, Mercer, Salem3 hr
Aug 3, 10:12 AM EDTFlash Flood WarningPHIAtlantic, Cumberland, Salem86 min
Aug 3, 10:36 AM EDTFlash Flood WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean, Somerset6 hr
Aug 3, 10:44 AM EDTFlash Flood Warning Considerable damage threatPHIBurlington, Camden, Gloucester6 hr
Aug 3, 1:20 PM EDTAreal Flood WarningPHIBurlington, Camden, Mercer4 hr
Aug 3, 1:51 PM EDTSpecial Marine WarningPHI24 min
Aug 3, 2:53 PM EDTSpecial Marine WarningPHI97 min
Aug 3, 2:57 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean27 min
Aug 3, 5:15 PM EDTSpecial Marine WarningPHI90 min
Aug 3, 3:01 AM EDTFlash Flood WarningPHIBucks, Chester, Delaware, Montgomery3 hr
Aug 3, 6:26 AM EDTAreal Flood WarningPHIBucks, Montgomery94 min

Nearby

Areal Flood Warnings in New Jersey, 2026Areal Flood Warnings in Pennsylvania, 2026Every areal flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.