New Jersey, 2023

Damaging Winds in New Jersey, July 21, 2023

July 21, 2023 · NWS PHI · 2 events in 2 counties and zones

A strong line of thunderstorms moved through the area early in the morning of July 21 producing damaging wind gusts.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

What happened

The episode as NWS PHI wrote it up.

A strong line of thunderstorms moved through the area early in the morning of July 21 producing damaging wind gusts.

What forecasters said that day

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 21, 4:09 AM EST, 1 hour 50 minutes earlier.

Area forecast discussion, Jul 21, 4:09 AM EST, 1 hour 50 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
509 AM EDT Fri Jul 21 2023

.SYNOPSIS...
A warm front lifts north through the region early this morning,
followed by a cold front late this afternoon. High pressure
builds into the region for the weekend. Several weak
disturbances will affect the area next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
Line of showers and thunderstorms has moved out of southeast
Pennsylvania and is moving through New Jersey and Delmarva. Will
go ahead and allow Severe Thunderstorm Watch #530 to expire at 5
am. Severe Thunderstorm Watch #532 remains in effect for
southern and eastern New Jersey, the eastern shores of
Maryland, and Delaware until 8 am. There still remains 1000 to
1500 J/kg of surface-based CAPE for southern New Jersey and
Delmarva. In addition, there is 25 to 30 kt of 0-6 km Bulk
Shear.

As this line of storms departs, a warm front lifts north
through the region later this morning. Surface dew points rise
into the lower 70s for most of the area, proving abundant
moisture for potential afternoon showers and thunderstorms. The
question is if skies clear out enough and temperatures warm up
enough to drive instability values up. Highs should get into the
low to mid 80s, and surface-based CAPE values will rise to over
2000 J/kg. A cold front will pass through the region this
afternoon along with some shortwave energy. 0-6 km Bulk Shear
will average 25 to 30 kt. This will touch off another round of
showers and thunderstorms, mainly over New Jersey with gusty
winds and heavy rain.

Storms taper off fairly quickly after sunset. Cold front passes
through the region, and skies clear out overnight. Depending
how much rain falls today, and where it falls, there may be some
patchy fog developing prior to sunrise Saturday. Lows tonight
will largely be in the low to mid 60s.

&&

.SHORT TERM /SATURDAY THROUGH SUNDAY/...
High pressure builds into the Ohio Valley on Saturday, slides
overhead Saturday night, and then offshore on Sunday. Dry
weather, sunny skies, and low humidity levels are on tap for the
weekend, possibly making this the nicest weather weekend of the
summer!

Highs Saturday will be in the low to mid 80s, and then highs on
Sunday will top off in the mid to upper 80s as warmer air
spreads in from the west. Both days will feature surface dew
points in the upper 50s to low 60s.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
High pressure continues to move offshore Sunday night and will
be well offshore on Monday. Another closed H5 low sets up shop
in Hudson Bay, Canada, and a deep trough will extend down from
that low into the Eastern U.S. Once again, mainly diurnally
driven convection will affect the area as several shortwaves
associated with this trough pass through the region.

Based on latest guidance, there are low chances Monday and
Tuesday, and then weak surface high pressure passes through the
region Wednesday. Conditions should be mostly dry on Wednesday.
Another weak shortwave approaches Thursday, bringing another
chance for convection.

Temperatures will gradually warm back up through the week, with
highs topping off in the mid and upper 80s Monday and Tuesday,
upper 80s to around 90 on Wednesday, and then in the low to mid
90s Thursday. Surface dew points will also eventually creep back
up into the upper 60s and low 70s.

&&

.AVIATION /09Z FRIDAY THROUGH TUESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas...

Early this morning (through 12Z)...SHRA/TSRA with sub-VFR
conditions. LGT/VRB winds, except in TSRA, the strongest of
which could have gusts 40 to 50 kt. Moderate confidence.

Today (12Z through 00Z)...Lingering SHRA/TSRA will taper off by
15Z. Conditions improve to VFR. Another round of SHRA/TSRA
possible starting around 18Z. Brief sub-VFR conditions
possible. LGT/VRB winds, becoming W-NW 5 to 10 kt. Low
confidence.

Tonight (00Z through 12Z)...Primarily VFR. Light NW winds. Low
probability for sub-VFR VSBYs in fog. Moderate confidence.

Outlook...

Saturday through Sunday night...VFR. W to NW winds 10 to 15 kt
with occasional gusts to 20 kt during the day, then LGT/VRB at
night. High confidence.

Monday through Tuesday...VFR overall. Scattered afternoon
SHRA/TSRA possible. S winds 5 to 10 kt. Moderate confidence.

Wednesday...VFR. SW winds 5 to 10 kts. Moderate confidence.

&&

.MARINE...
A line of showers and thunderstorms will work their way across
the waters early this morning with strong thunderstorm wind
gusts, lightning, and VSBY restrictions in heavy rain. Another
round of thunderstorms is possible this afternoon and early
evening before tapering off late.

Sub-Small Craft Advisory conditions on tap. South to southeast
winds will range from 10 to 15 kt with occasional gusts before
turning northwest tonight, then west on Saturday. Seas will
average 2 to 4 feet.

Outlook...

Saturday through Wednesday...A prolonged period of sub-SCA
conditions expected during this time. Conditions will be dry
with no showers or thunderstorms Saturday through Sunday.
Isolated late day and evening showers and thunderstorms are
possible Monday and Tuesday. Dry weather expected Wednesday.
Winds will mostly be west to northwest 10 to 15 kts over the
weekend, becoming southeasterly 10 to 15 kts Monday and Tuesday,
and then southwesterly on Wednesday. Seas 2 to 4 ft.

Rip Currents...

Today, winds will be out of the south to southeast at 5 to 10
mph with a medium period southeast swell up to 10 seconds. As a
result, there is a LOW risk for the develop of dangerous rip
currents at New Jersey and Delaware beaches outside of
thunderstorms.

On Saturday, winds turn to the northwest at 5 to 10 mph. A
light easterly swell will be in place. Once again, there will be
a LOW risk for the development of dangerous rip currents at New
Jersey and Delaware beaches.

&&

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

&&

SYNOPSIS...MPS
NEAR TERM...MPS
SHORT TERM...MPS
LONG TERM...MPS
AVIATION...MPS
MARINE...MPS
Hazardous weather outlook, Jul 21, 3:49 AM EST, 2 hours 10 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0449 AM EDT Fri Jul 21 2023

DEZ001-220849-
New Castle-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

DEZ002-220849-
Kent-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

DEZ003-220849-
Inland Sussex-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

DEZ004-220849-
Delaware Beaches-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for the Atlantic coastal 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

PAZ054-220849-
Carbon-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

PAZ055-220849-
Monroe-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for Monroe 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...Saturday through Thursday.

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.

PAZ060-220849-
Berks-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

PAZ061-220849-
Lehigh-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

PAZ062-220849-
Northampton-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

PAZ070-220849-
Delaware-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

PAZ071-220849-
Philadelphia-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

PAZ101-220849-
Western Chester-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

PAZ102-220849-
Eastern Chester-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

PAZ103-220849-
Western Montgomery-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

PAZ104-220849-
Eastern Montgomery-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

PAZ105-220849-
Upper Bucks-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

PAZ106-220849-
Lower Bucks-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ001-220849-
Sussex-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ007-220849-
Warren-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ008-220849-
Morris-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ009-220849-
Hunterdon-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ010-220849-
Somerset-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ012-220849-
Middlesex-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ013-220849-
Western Monmouth-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ014-220849-
Eastern Monmouth-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for eastern 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...Saturday through Thursday.

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.

NJZ015-220849-
Mercer-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ016-220849-
Salem-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

NJZ017-220849-
Gloucester-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ018-220849-
Camden-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ019-220849-
Northwestern Burlington-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ020-220849-
Ocean-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ021-220849-
Cumberland-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

NJZ022-220849-
Atlantic-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

NJZ023-220849-
Cape May-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for Cape May County excluding the
Atlantic coast 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...Saturday through Thursday.

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.

NJZ024-220849-
Atlantic Coastal Cape May-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Cape May 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...Saturday through Thursday.

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.

NJZ025-220849-
Coastal Atlantic-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for coastal 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...Saturday through Thursday.

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.

NJZ026-220849-
Coastal Ocean-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for coastal 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...Saturday through Thursday.

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.

NJZ027-220849-
Southeastern Burlington-
0449 AM EDT Fri Jul 21 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...Saturday through Thursday.

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.

MDZ012-220849-
Kent MD-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

MDZ015-220849-
Queen Annes-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

MDZ019-220849-
Talbot-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

MDZ020-220849-
Caroline-
0449 AM EDT Fri Jul 21 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.

Please go to weather.gov/phi/ehwo for more information on
potential weather hazards.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

ANZ430-220849-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

ANZ431-220849-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

ANZ450-220849-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Monmouth County out 20 nm.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

ANZ451-220849-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Ocean County out 20 nm.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

ANZ452-220849-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Atlantic County out 20 nm.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

ANZ453-220849-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Cape May County out 20 nm.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

ANZ454-220849-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0449 AM EDT Fri Jul 21 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.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

ANZ455-220849-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0449 AM EDT Fri Jul 21 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to Sussex County out 20 nm.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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.

In the hours before

Local storm report, Jul 21, 3:10 AM EST, 2 hours 49 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
410 AM EDT Fri Jul 21 2023

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

0249 AM     Tstm Wnd Dmg     2 W Birdsboro           40.26N 75.84W
07/21/2023                   Berks              PA   911 Call Center

            Tree down on Cedar Hill Road.

&&

RCM
Local storm report, Jul 21, 3:22 AM EST, 2 hours 37 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
422 AM EDT Fri Jul 21 2023

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

0302 AM     Tstm Wnd Dmg     1 WNW Upper Uwchlan Twp 40.08N 75.71W
07/21/2023                   Chester            PA   911 Call Center

            Tree down on house.

&&

RCM
Local storm report, Jul 21, 3:30 AM EST, 2 hours 29 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
430 AM EDT Fri Jul 21 2023

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

0346 AM     Tstm Wnd Dmg     2 WSW North Wales       40.20N 75.31W
07/21/2023                   Montgomery         PA   Public

            Large branch down at Morris Road and West
            Point Pike.

&&

RCM
Special weather statement, Jul 21, 3:56 AM EST, 2 hours 3 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
456 AM EDT Fri Jul 21 2023

NJZ008-010-210930-
Morris NJ-Somerset NJ-
456 AM EDT Fri Jul 21 2023

...Strong thunderstorms will impact portions of eastern Morris and
northeastern Somerset Counties through 530 AM EDT...

At 455 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Green Pond to Martinsville. Movement was
east at 40 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Morristown, Dover, Madison, Florham Park, East Hanover, Lincoln Park,
Kinnelon, Chatham, Boonton, Butler, Wharton, Rockaway, Morris Plains,
Mountain Lakes, Riverdale, Victory Gardens, Green Pond, Martinsville,
Millington and Parsippany.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 35 and 42.
 Interstate 80 in New Jersey between mile markers 35 and 48.
 Interstate 287 in New Jersey between mile markers 27 and 54.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4091 7434 4083 7433 4076 7438 4075 7436
      4067 7446 4066 7445 4066 7440 4063 7442
      4061 7444 4059 7457 4103 7457 4108 7450
      4104 7450 4105 7445 4102 7443 4100 7430
      4090 7427
TIME...MOT...LOC 0855Z 248DEG 34KT 4100 7453 4060 7455

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

RCM
Local storm report, Jul 21, 5:21 AM EST, 38 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
621 AM EDT Fri Jul 21 2023

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

0537 AM     Tstm Wnd Dmg     2 WNW Easton            38.78N 76.12W
07/21/2023                   Talbot             MD   911 Call Center

            Tree down at Unionville Road and St.
            Michaels Road.

&&

RCM
Local storm report, Jul 21, 5:36 AM EST, 23 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Mount Holly NJ
636 AM EDT Fri Jul 21 2023

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

0346 AM     Tstm Wnd Dmg     2 WSW North Wales       40.20N 75.31W
07/21/2023                   Montgomery         PA   Public

            Large branch down at Morris Road and West
            Point Pike.

0302 AM     Tstm Wnd Dmg     1 WNW Upper Uwchlan Twp 40.08N 75.71W
07/21/2023                   Chester            PA   911 Call Center

            Tree down on house.

0216 AM     Tstm Wnd Dmg     2 WSW Wernersville      40.32N 76.11W
07/21/2023                   Berks              PA   911 Call Center

            Tree down on Huntzinger Road.

0249 AM     Tstm Wnd Dmg     2 W Birdsboro           40.26N 75.84W
07/21/2023                   Berks              PA   911 Call Center

            Tree down on Cedar Hill Road.

0537 AM     Tstm Wnd Dmg     2 WNW Easton            38.78N 76.12W
07/21/2023                   Talbot             MD   911 Call Center

            Tree down at Unionville Road and St.
            Michaels Road.

&&

The radar

The Philadelphia radar (KDIX), 63 km away, was scanning. The volume nearest the first event began at 10:59 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Atlantic

When
July 21, 5:59 AM EST
Where
Atlantic County, 0.69 mi N of Dolphin
Measured
50 kt (58 mph) estimated gust
Reported by
Emergency Manager
Coordinates
39.390, -74.530

Report of 1 tree down on Portland Ave. Time estimated from radar.

Thunderstorm Wind, Ocean

When
July 21, 6:50 AM EST
Where
Ocean County, Brant Beach
Measured
54 kt (62 mph) measured gust
Reported by
Mesonet
Coordinates
39.620, -74.200

Mesonet CR607 measured a 62 MPH gust.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New Jersey in 2023Every state in 2023This day in weather historyWarnings in New Jersey, July 2023

Sources

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: 1125539, 1125541.