A strong mid-level shortwave trough moved into a very moist and unstable environment, with scattered strong to severe thunderstorms developing. Thunderstorms produced damaging winds across parts of Delaware.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PHI wrote it up.
A strong mid-level shortwave trough moved into a very moist and unstable environment, with scattered strong to severe thunderstorms developing. Thunderstorms produced damaging winds across parts of Delaware.
The local office's own words before the first event, 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 the first event at Jul 25, 11:39 AM EST, 2 hours 58 minutes earlier.
Area Forecast Discussion
National Weather Service Mount Holly NJ
1239 PM EDT Tue Jul 25 2023
.SYNOPSIS...
Weak low pressure off the Middle Atlantic Coast will continue
to drift northeastward and away from our area through today.
High pressure should follow from the west for Wednesday. The
high will merge with a larger high over the western North
Atlantic. Persistent southwest flow will result in hot and humid
conditions through the end of the week. A cold front is
expected to cross the area from the northwest sometime Saturday,
which will bring increasing chances for showers and storms, as
well as relief from the heat by Sunday. Cooler high pressure
will settle across the northeast into early next week.
&&
.NEAR TERM /THROUGH TONIGHT/...
As of 12:30PM...Shower and thunderstorm activity has begun to fire
across our more western areas mainly northwest of I-95. PoPs in the
forecast have been increased for the next few hours. A convective
watch has been issued for our entire CWA and is effect until 8PM.
Robust mid level shortwave energy to the west will continue to
migrate to the east with time and a shortwave axis is forecast to
pass overhead this evening. Approaching short wave energy and the
increasing moisture in the southerly flow will result in the
development of showers and thunderstorms for this afternoon into
this evening. Mixed layer CAPE values in the 1500 to 2500 J/kg range
should provide an environment conducive for organized convection,
producing strong wind gusts and hail. In addition, precipitable
water values are forecast to approach 2 inches, especially from the
I-95 Corridor southeastward. Locally heavy rain may occur. WPC has
much our of region in a slight risk for excessive rainfall.
Once mid level shortwave energy passes to our east, the potential
for precipitation is expected to decrease quickly overnight. Some
patchy low clouds and fog are possible, again mainly where heavy
rainfall occurs.
Today's maximum temperatures are expected to favor the middle and
upper 80s. Tonight's lows should be mostly in the 60s.
&&
.SHORT TERM /WEDNESDAY THROUGH FRIDAY NIGHT/...
Flat upper ridging will briefly build through the day on
Wednesday and weak surface high pressure is expected to extend
along the central and southern Appalachians. The combination
will result in a dry day on Wednesday with subsidence noted in
forecast soundings. The high will drift eastward on Wednesday
afternoon and Wednesday night, merging with a larger high
located over the western North Atlantic. Wednesday is forecast
to be mostly sunny with maximum temperatures in the upper 80s
and lower 90s. Wednesday night's lows will be a few degrees
above average in the upper 60s to the middle 70s as humidity
levels continue to increase overnight.
The persistent mid level long wave trough that has been
protecting us from excessively hot temperatures is expected to
lift for the end of the week. The flow across the northern
states should become somewhat zonal and a ridge over the western
North Atlantic is forecast to retrograde a bit. Meanwhile, a
surface high off the coast will establish a south to
southwesterly flow of hot and humid air into our region.
We are anticipating a buildup of heat and humidity beginning on
Thursday when our first excessive heat headlines of the year
are looking increasingly likely. Warm, moist advection will
ensue on Thursday under southerly flow through much of the
column. 850 temps are progged to reach 18-20C which will support
highs in the low to mid 90s. Dewpoints will rise into the low
to mid 70s and this will result in heat index values reaching
the upper 90s to low 100s in the afternoon. There will be a
persistent south to southwest breeze around 10-15 mph through
the day, with gusts perhaps as high as 25 mph. Some shortwave
energy will slide through aloft, mainly focused to our north and
west, where we will carry 20-30% PoPs with peak heating aiding
in scattered shower and thunderstorm development. Some
additional development of storms is possible farther south into
the evening, however confidence is lower on this.
A southwest wind around 10 mph will persist Thursday night,
which will keep low temperatures elevated in the mid to upper
70s south of I-78. This will not offer any relief from the heat
overnight.
The heat will continue into Friday as this will likely be the
hottest day of the week (potentially of the year). The
continuing southwesterly flow will maintain warm, moist air
through the day on Friday. 850 temps will reach around 20-22C
and latest NBM probs indicate a ~90-95% chance of temperatures
exceeding 90 degrees. The probability of exceeding 100 degrees
is very low though. The past few runs of the GFS and Euro
ensembles also support this trend. We have maintained the
forecast for widespread high temperatures in the mid 90s. With
dewpoints continuing in the low to mid 70s, heat index values of
up to 100-105 degrees are anticipated. The one question for
Friday will be how much the dewpoints mix out. Taking a look at
the latest GFS forecast soundings, deep boundary layer mixing is
suggested. This would mean dewpoints perhaps mixing out into
the upper 60s, but temperatures would be a couple degrees warmer
as a result. Resulting heat index values would still be in the
100-105 degree range though. Something we will have to monitor.
Southwest winds will once again be near 10-15 mph with gusts of
20 mph possible. Some isolated thunderstorms are possible north
of I-78, though most areas will remain dry under mostly sunny
skies.
For Friday night, the southwest winds will continue around 10
mph, keeping the temperatures elevated in the mid to upper 70s
south of I-78. This will make for a second consecutive night
with little relief from the daytime heat.
&&
.LONG TERM /SATURDAY THROUGH MONDAY/...
A cold front is expected to arrive from the northwest sometime
on Saturday, resulting in an increase in the potential for
afternoon and evening showers and thunderstorms. The timing of
the arrival of the cold front to our region is still uncertain,
however the latest trend in the guidance is for a slower arrival
of the front. This would translate to a third day of hot and
humid conditions. We have stuck closely with the NBM for
temperatures, which have increased due to the slower trend of
the front. With increasing cloud cover and increasing chances
for convection into the afternoon, temperatures are likely to be
at least a few degrees cooler than Friday (highs in the low to
mid 90s), but it'll still be hot and humid. If the slower trend
comes to fruition, we'll be looking at heat index values ranging
from the mid 90s to low 100s across much of the area.
Given the synoptic setup, we'll have to keep a close eye on the
severe thunderstorm potential for Saturday as well. A cold
front crossing the region on the heels of a heat wave can often
spell trouble, as we'll have plenty of instability and shear to
work with. We have maintained a chance of thunderstorms in the
forecast for now.
We should finally start to cool off starting Saturday night in
the wake of the cold front with temperatures and dewpoints
falling back to more seasonable values. We'll really start to
enjoy some relief by Sunday and into Monday, with highs in the
low to mid 80s and dewpoints mixing out into the low 60s to
perhaps even the upper 50s (below normal!). Lows will also fall
below normal with values ranging from the upper 50s to mid 60s
into early next week. We'll keep and chance of showers and
storms in the forecast for Sunday, as some lingering instability
behind the front could result in some scattered diurnal
convection.
&&
.AVIATION /18Z TUESDAY THROUGH SUNDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.
Today...VFR with scattered clouds in the mid to late morning.
Mainly VFR in the afternoon. Scattered showers and thunderstorms
are expected to develop, briefly reducing conditions to MVFR or
IFR. The thunderstorms could bring heavy rain, strong wind
gusts, hail and frequent lightning. South to southwest wind 5 to
10 knots. Medium confidence.
Tonight...Scattered showers and thunderstorms ending in the
evening. Otherwise, it should be mainly VFR. Localized ceiling
and visibility restrictions are possible overnight due to the
potential for some patchy low clouds and fog. Variable wind 5
knots or less. Medium confidence.
Outlook...
Wednesday...VFR. South to southwesterly wind 5-10 knots. High
confidence.
Thursday...Primarily VFR. A few scattered showers and
thunderstorms in the afternoon. South to southwesterly wind
10-15 knots with gusts to 20 kts. Moderate confidence.
Friday...Primarily VFR. A few isolated showers and
thunderstorms in the afternoon. Southwesterly wind 10-15 knots
with gusts to 20 knots. Moderate confidence.
Saturday...Primarily VFR. A few scattered showers and
thunderstorms with the passage of cold front. Southwest to
westerly wind 10-15 knots with gusts to 20 knots. Moderate
confidence.
&&
.MARINE...
***As of 16z...All marine zones are included in a convective
watch. Showers and thunderstorms may develop over the waters this
afternoon. Showers and thunderstorms are anticipated to pass
off the coast this evening. They may bring locally heavy rain,
strong wind gusts, hail and frequent lightning.***
Winds southerly around 10 knots for this afternoon. The wind is
expected to become southwest to west tonight, decreasing to 5
to 10 knots. Waves on our ocean waters should be around 2 feet,
with waves on Delaware Bay at 2 feet or less.
Outlook...
Wednesday...No marine headlines expected. Southerly wind 10-15
knots. Seas around 2 feet.
Thursday...A brief period of SCA conditions possible in the
afternoon with southerly wind 15-20 knots and gusts up to 25
knots. Seas 3-5 feet.
Friday...SCA conditions possible with southerly sustained winds
of 15-20 knots with gusts up to 25 knots. Seas 3-5 feet.
Saturday...SCA conditions possible with southerly sustained
winds of 10-15 knots with gusts up to 25 knots. Scattered
thunderstorms possible. Seas 3-5 feet.
Rip Currents...
Surf zone conditions are forecast to be similar for today and
Wednesday. A light and variable wind in the morning should
become south around 10 knots in the afternoon both days.
Breaking waves are expected to be only around 1 foot with a
medium period east to southeast swell. There is a LOW risk for
rip currents along the coasts of Delaware and New Jersey for
today and Wednesday.
&&
.CLIMATE...
Near record breaking heat is forecast for Thursday night
through Friday night. Records for our climate sites are listed
below:
July 28 July 28 July 29
Warmest Low Warmest High Warmest Low
Site Record/Year Record/Year Record/Year
Allentown (ABE) 75/1934 97/1949 75/2002
AC Airport (ACY) 80/2020 98/1999 78/2002
AC Marina (55N) 78/2020 96/1999 78/2020
Georgetown (GED) 76/2022 99/1949 78/2011
Mount Pocono (MPO) 69/1955 93/1949 71/2002
Philadelphia (PHL) 79/2020 100/1941 81/1995
Reading (RDG) 78/1949 99/1941 78/1949
Trenton (TTN) 76/1949 98/1940 77/2002
Wilmington (ILG) 76/2020 101/1894 82/1894
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.
&&
SYNOPSIS...Brudy/Staarmann
NEAR TERM...Iovino/Wunderlin
SHORT TERM...Brudy/Staarmann
LONG TERM...Brudy/Staarmann
AVIATION...Brudy/Iovino/Staarmann
MARINE...AKL/Brudy/Iovino/Staarmann/Wunderlin
CLIMATE...Hazardous Weather Outlook National Weather Service Mount Holly NJ 1100 AM EDT Tue Jul 25 2023 DEZ001-261500- New Castle- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ002-261500- Kent- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Kent County in Delaware. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ003-261500- Inland Sussex- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for inland portions of Sussex County in Delaware. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-261500- Delaware Beaches- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for the Atlantic coastal portions of Sussex County in Delaware. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ054-261500- Carbon- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ055-261500- Monroe- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ060-261500- Berks- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Berks County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ061-261500- Lehigh- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Lehigh County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ062-261500- Northampton- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Northampton County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ070-261500- Delaware- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Delaware County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ071-261500- Philadelphia- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Philadelphia County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ101-261500- Western Chester- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for western Chester County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ102-261500- Eastern Chester- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for eastern Chester County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ103-261500- Western Montgomery- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for western Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ104-261500- Eastern Montgomery- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for eastern Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ105-261500- Upper Bucks- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ106-261500- Lower Bucks- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ001-261500- Sussex- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Sussex County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ007-261500- Warren- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Warren County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ008-261500- Morris- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ009-261500- Hunterdon- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ010-261500- Somerset- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-261500- Middlesex- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-261500- Western Monmouth- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ014-261500- Eastern Monmouth- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ015-261500- Mercer- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ016-261500- Salem- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Salem County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ017-261500- Gloucester- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Gloucester County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ018-261500- Camden- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ019-261500- Northwestern Burlington- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ020-261500- Ocean- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ021-261500- Cumberland- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Cumberland County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ022-261500- Atlantic- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for inland portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ023-261500- Cape May- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Cape May County excluding the Atlantic coast in New Jersey. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-261500- Atlantic Coastal Cape May- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for the Atlantic coastal portions of Cape May County in New Jersey. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ025-261500- Coastal Atlantic- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ026-261500- Coastal Ocean- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ027-261500- Southeastern Burlington- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-261500- Kent MD- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Kent County in Maryland. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ015-261500- Queen Annes- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Queen Annes County in Maryland. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ019-261500- Talbot- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Talbot County in Maryland. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ020-261500- Caroline- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for Caroline County in Maryland. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-261500- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for upper Delaware Bay. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ431-261500- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for lower Delaware Bay. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ450-261500- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Monmouth County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ451-261500- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Ocean County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ452-261500- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Atlantic County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ453-261500- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Cape May County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Scattered severe thunderstorms are possible on Thursday. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ454-261500- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to the mouth of Delaware Bay out 20 nm. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ455-261500- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 1100 AM EDT Tue Jul 25 2023 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Sussex County out 20 nm. .DAY ONE...Through tonight. Scattered severe thunderstorms are possible. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
318 PM EDT Tue Jul 25 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0202 PM Tstm Wnd Dmg 1 ENE Whitehouse Statio 40.62N 74.75W
07/25/2023 Hunterdon NJ Public
Large tree branches down on Old Highway 28
in Mechanicsville. Time estimated.
&&
DeSilvaPreliminary Local Storm Report
National Weather Service Mount Holly NJ
319 PM EDT Tue Jul 25 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0318 PM Rain 3 W Stanton 40.57N 74.88W
07/25/2023 M1.08 inch Hunterdon NJ CO-OP Observer
&&Preliminary Local Storm Report
National Weather Service Mount Holly NJ
321 PM EDT Tue Jul 25 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0145 PM Tstm Wnd Dmg Clinton 40.64N 74.91W
07/25/2023 Hunterdon NJ Emergency Mngr
Trees down in Clinton Township. Time
estimated from radar.
&&
AKLPreliminary Local Storm Report
National Weather Service Mount Holly NJ
326 PM EDT Tue Jul 25 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0205 PM Tstm Wnd Dmg Readington Twp 40.61N 74.78W
07/25/2023 Hunterdon NJ Emergency Mngr
Trees down in Readington Township. Time
estimated from radar.
&&
AKLPreliminary Local Storm Report
National Weather Service Mount Holly NJ
327 PM EDT Tue Jul 25 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0315 PM Tstm Wnd Gst Fortescue NJWxNet 39.24N 75.18W
07/25/2023 M49 MPH Cumberland NJ Mesonet
NJ Mesonet Station gusted to 49mph.
&&
DeSilvaPreliminary Local Storm Report
National Weather Service Mount Holly NJ
333 PM EDT Tue Jul 25 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0236 PM Tstm Wnd Dmg 1 NE Hamburg 41.16N 74.57W
07/25/2023 Sussex NJ Dept of Highways
Downed tree on NJ 94 northbound North of NJ
23 (Hardyston Twp). Time Estimated.
&&
DeSilvaThe Dover AFB radar (KDOX), 13 km away, was scanning. The volume nearest the first event began at 19:37 UTC.
2 thunderstorm wind. Local standard time, as filed.
Call Center reports a downed tree onto wires in Greenwood. Time estimated from radar.
Tree down in the town of Houston. Time estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Delaware in 2023Every state in 2023This day in weather historyWarnings in Delaware, July 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1125837, 1125838.