New Jersey, 2021

Damaging Winds in New Jersey, June 30, 2021

June 30, 2021 · NWS PHI · 3 events in 2 counties and zones

A near record warm air mass was in place over the mid-Atlantic on June 30. Combined with fairly high humidity, moderate to strong instability built over the region.

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
3

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 near record warm air mass was in place over the mid-Atlantic on June 30. Combined with fairly high humidity, moderate to strong instability built over the region. An approaching surface trough acted to trigger scattered thunderstorms over the area during the afternoon and evening hours. Shear was not very strong, which limited overall storm organization. However, some storms did become strong to severe and produced instances of damaging winds. Convective activity diminished during the later evening hours with the loss of daytime heating.

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 Jun 30, 6:18 PM EST, 2 hours 17 minutes earlier.

Area forecast discussion, Jun 30, 6:18 PM EST, 2 hours 17 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
718 PM EDT Wed Jun 30 2021

.SYNOPSIS...
A surface trough will remain across the east coast through
Thursday, before a cold front settles into the area Thursday
night and shifts offshore by Friday. Several waves of low
pressure will develop along this front and impact the area as it
settles across the area and moves offshore. Several surface
troughs may impact the Mid Atlantic region into early next week,
while high pressure builds across the southeast states. Another
cold front is forecast to impact the area around the middle of
next week.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
The Excessive Heat Warning and the Heat Advisory will be
allowed to expire at 8:00 PM as temperatures slowly decrease.
This is the final day of this stretch of excessive heat.

A Severe Thunderstorm Watch remains in effect until 10:00 PM
and it includes the Pennsylvania counties of Berks, Lehigh,
Northampton, Carbon and Monroe, and the New Jersey counties of
Sussex, Warren and Morris.

A positive tilt upper-level trough from eastern Canada to the
Great Lakes is forecast to gradually shift south and eastward
through tonight. The airmass ahead of this feature over our area
is rather unstable with surface-based CAPE (SBCAPE) in the
2000-3000 J/kg range. A zone of 40-50 knots of effective bulk
shear is just to our north, however 30-40 knots now extends
across northeast Pennsylvania and far northern New Jersey. Some
lines of convection are ongoing and will move into our counties
shortly. The low-level convergence is not all that strong,
however strong instability and greater shear is helping to
organize convection to our west. This should hold together in a
linear or clustered fashion, with damaging winds the main threat
especially given the steep low-level lapse rates and higher
DCAPE values into our region. The greatest severe thunderstorm
risk looks to be along or north of I-78.

The convection will be moving fairly quickly given the tendency
for downwind propagation, however it is not as clear how far
south and east the storms get through the evening. Overall, any
convection should be on the decrease late this evening and
beyond owing to nocturnal stabilization. Given the rather
unstable environment and somewhat elevated near-surface winds,
storms may persist longer though than currently expected and
therefore did not lower the PoPs as fast into the overnight. It
will be another very warm and muggy night as we remain ahead of
a cold front.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH THURSDAY NIGHT/...
Summary...The breakdown of the excessive heat starts Thursday,
however increasing showers and thunderstorms with some corridors
of very heavy rain are expected with even flash flooding
possible. Some thunderstorms Thursday afternoon could be severe
with damaging winds the severe main hazard.

As an upper-level trough swings across the Great Lakes and
adjacent Canada, it is forecast to close off. In advance of this
feature, weak surface low pressure tracks to our north with a
cold front slowly arriving into and across our area. A very
moist airmass with precipitable water values near 2 inches will
be in place. This combined with enough instability will result
in showers and thunderstorms quickly developing during the day.
These are expected to become more numerous during the afternoon
and evening as large scale forcing starts to overspread our area
along with an increase in the mid-level flow.

The combination of strengthening low to mid level flow ahead of
the upper-level trough and sufficient instability could result
in a few strong to severe thunderstorms in the afternoon and
evening. As of now, the greatest chance of severe thunderstorms
appears to be across our southern zones where better heating may
take place. Forecast soundings show a mixed boundary layer
resulting in steepening low-level lapse rates. The instability
profile may be skinnier, however there is some potential for
local wet microbursts due to water-loaded downdrafts. Convection
may tend to organize in a linear fashion, which would increase
the local damaging wind potential.

The mid to upper-level flow will be nearly parallel to the cold
front for a while, and given the vertical wind profiles the
convection may train over some areas. Given the high
precipitable water values and strengthening convection with
time, very efficient rainfall rates (around 2 inches per hour)
are quite possible. This would result in at least a local flash
flood threat especially within the urban areas. Given the
potential including more than one round of convection, opted to
issue a Flash Flood Watch for the urban I-95 corridor for
Thursday afternoon through Thursday night. The convection is
expected to gradually be on the decrease during Thursday night
as the airmass stabilizes in the wake of the convection and also
behind the cold front. However, given the continued large scale
forcing, at least some convection may continue through the
entire night. Given cloud cover and increasing convection, heat
indices will be well below advisory/warning criteria Thursday.

&&

.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
Unsettled weather will continue into the long term period with
a chance of showers and thunderstorms, especially Friday and
Saturday.

The cold front that moves across the area later on Thursday
will be offshore of the east coast on Friday and slowly shift
eastward into the weekend. Meanwhile, several areas of low
pressure will develop near the area and move along this frontal
boundary Friday into Saturday. As these low pressure systems
move along the front, a couple of surface troughs may develop on
the backside of the lows and move across the Mid Atlantic
region Friday into Saturday. As the mid/upper trough swings into
the region, several short wave/vorticity impulses will move
across the area as well, which will interact with some enhanced
moisture associated with the surface trough across the area.

By Sunday, the low will be pulling farther away from the area,
however, the unsettled weather potential will continue into next
week. The flow aloft will turn to the northwest on Sunday and
Monday, before shifting to the west and become more zonal on
Tuesday. However, with the northwest flow and westerly flow,
several short wave/vorticity impulses will move across the area
each day, which could help contribute to a chance of isolated to
scattered showers and thunderstorms each day as a lee-
side/thermal trough may develop and provide a focus for storms
to form.

By Wednesday, another cold front is forecast to approach the
area from the west and northwest, which could provide another
chance of showers and thunderstorms.

While a cool down is expected Friday, and especially Saturday
with below normal temperatures, temperatures will rebound
Sunday, and return to above normal for Monday through Wednesday.

&&

.AVIATION /23Z WEDNESDAY THROUGH MONDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

This evening...Mainly VFR. However, scattered showers and
thunderstorms through about 04Z may briefing reduce conditions
to MVFR/IFR. Southwest to west wind 5 to 10 knots. Medium
confidence.

Overnight...Mainly VFR with some local visibility and ceiling
restrictions developing. Variable wind 5 knots or less. Medium
confidence.

Thursday...Some early morning visibility and ceiling
restrictions are possible, then mainly VFR for the morning.
Conditions are expected to deteriorate in the afternoon with the
arrival of showers and thunderstorms from the west and
northwest. Wind mainly from the west around 5 to 10 knots.
Medium confidence.

Outlook...

Friday-Friday night...MVFR or IFR conditions expected with
showers and thunderstorms likely, especially during the day
Friday. West winds 5-10 knots, becoming variable during the
evening, then northwest overnight. Locally higher winds near
near thunderstorms. Low confidence.

Saturday-Saturday night...MVFR or IFR conditions with a chance
of showers and thunderstorms, especially during the day. North
to northwest winds 5-10 knots, becoming light and variable
overnight. Locally higher winds near near thunderstorms. Low
confidence.

Sunday-Sunday night...Conditions improve to VFR during the
morning hours Sunday and continue into Sunday night. A chance of
showers and thunderstorms. West to northwest winds 5-10 knots,
with occasional gusts around 15-20 knots during the afternoon,
becoming light and variable overnight. Locally higher winds near
near thunderstorms. Low confidence.

Monday-Monday night...VFR conditions expected. A slight chance
of showers and thunderstorms in the afternoon. West to northwest
winds 5-10 knots early, shifting to southwest during the day.
Locally higher winds near near thunderstorms. Low confidence.

&&

.MARINE...
The conditions are anticipated to be below Small Craft Advisory
criteria through Thursday. Southwesterly winds will increase
for a time through this evening, However gusts should remain
below 25 knots given the hot airmass in place. As a result, kept
seas at 4 feet or less. Showers and thunderstorms will increase
Thursday afternoon and evening.

OUTLOOK...

Friday-Monday...Conditions expected to remain mostly below
advisory levels with wind gusts remaining below 25 knots.
However, seas will linger around 3-4 feet, and may approach 5
feet at times, especially Saturday. There is a chance of showers
and thunderstorms, which may lead to locally higher winds and
waves.

Rip Currents...

South to southwest winds 10 to 20 mph in the surf zone into
this evening with low-to-medium period swell. The more favorably
oriented central/southern New Jersey coast has a MODERATE risk
for rip currents into this evening, while a LOW risk remains for
Delaware and for the Monmouth County coast. Conditions will
likely be quite similar again on Thursday.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Excessive Heat Warning until 8 PM EDT this evening for PAZ070-
     071-102-104-106.
     Flash Flood Watch from Thursday afternoon through Friday
     morning for PAZ070-071-101>106.
     Heat Advisory until 8 PM EDT this evening for PAZ054-055-
     060>062-101-103-105.
     Flash Flood Watch until 11 PM EDT this evening for PAZ071-104.
NJ...Excessive Heat Warning until 8 PM EDT this evening for
     NJZ008>010-012-013-015-017>019.
     Flash Flood Watch from Thursday afternoon through Friday
     morning for NJZ009-010-012-013-015>019.
     Heat Advisory until 8 PM EDT this evening for NJZ001-007-014-
     016-020-027.
DE...Excessive Heat Warning until 8 PM EDT this evening for DEZ001.
     Flash Flood Watch from Thursday afternoon through Friday
     morning for DEZ001.
MD...Heat Advisory until 8 PM EDT this evening for MDZ012-015-019-
     020.
MARINE...None.

&&

Synopsis...Robertson
Near Term...Gorse/Iovino
Short Term...Gorse
Long Term...Robertson
Aviation...Iovino/Robertson
Marine...Gorse/Robertson
Hazardous weather outlook, Jun 30, 8:32 PM EST, 3 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0932 PM EDT Wed Jun 30 2021

DEZ001-020132-
New Castle-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for New Castle County in Delaware.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

DEZ002-020132-
Kent-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
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.

DEZ003-020132-
Inland Sussex-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for inland portions of Sussex County
in Delaware.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
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.

DEZ004-020132-
Delaware Beaches-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Sussex County in Delaware.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
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.

PAZ054-020132-
Carbon-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.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...Thursday through Tuesday.

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.

PAZ055-020132-
Monroe-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.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...Thursday through Tuesday.

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.

PAZ060-020132-
Berks-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

PAZ061-020132-
Lehigh-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

PAZ062-020132-
Northampton-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

PAZ070-020132-
Delaware-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

PAZ071-020132-
Philadelphia-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

Dangerously hot conditions could result in heat exhaustion
or heat stroke with prolonged exposure.
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...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

PAZ101-020132-
Western Chester-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for western Chester County in
Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

PAZ102-020132-
Eastern Chester-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for eastern Chester County in
Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

PAZ103-020132-
Western Montgomery-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for western Montgomery County in
Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

PAZ104-020132-
Eastern Montgomery-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for eastern Montgomery County in
Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.
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...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

PAZ105-020132-
Upper Bucks-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for upper Bucks County in
Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

PAZ106-020132-
Lower Bucks-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for lower Bucks County in
Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ001-020132-
Sussex-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Sussex County in New Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

NJZ007-020132-
Warren-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Warren County in New Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

NJZ008-020132-
Morris-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Morris County in New Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

NJZ009-020132-
Hunterdon-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Hunterdon County in New Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ010-020132-
Somerset-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Somerset County in New Jersey.

.DAY ONE...Through tonight.

Dangerously hot conditions could result in heat exhaustion
or heat stroke with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ012-020132-
Middlesex-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Middlesex County in New Jersey.

.DAY ONE...Through tonight.

Dangerously hot conditions could result in heat exhaustion
or heat stroke with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ013-020132-
Western Monmouth-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for western Monmouth County in New
Jersey.

.DAY ONE...Through tonight.

Dangerously hot conditions could result in heat exhaustion
or heat stroke with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ014-020132-
Eastern Monmouth-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for eastern Monmouth County in New
Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

NJZ015-020132-
Mercer-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Mercer County in New Jersey.

.DAY ONE...Through tonight.

Dangerously hot conditions could result in heat exhaustion
or heat stroke with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ016-020132-
Salem-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Salem County in New Jersey.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ017-020132-
Gloucester-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Gloucester County in New Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ018-020132-
Camden-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Camden County in New Jersey.

.DAY ONE...Through tonight.

Dangerously hot conditions could result in heat exhaustion
or heat stroke with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ019-020132-
Northwestern Burlington-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for northwestern Burlington County in
New Jersey.

.DAY ONE...Through tonight.

Dangerously hot conditions could result in heat exhaustion
or heat stroke with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

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

NJZ020-020132-
Ocean-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for inland portions of Ocean County
in New Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

NJZ021-020132-
Cumberland-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Cumberland County in New Jersey.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

NJZ022-020132-
Atlantic-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for inland portions of Atlantic
County in New Jersey.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

NJZ023-020132-
Cape May-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Cape May County excluding the
Atlantic coast in New Jersey.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
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.

NJZ024-020132-
Atlantic Coastal Cape May-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Cape May County in New Jersey.

.DAY ONE...Through tonight.

There is a moderate risk of rip currents.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
There is a moderate risk of rip currents on Thursday.
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.

NJZ025-020132-
Coastal Atlantic-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for coastal portions of Atlantic
County in New Jersey.

.DAY ONE...Through tonight.

There is a moderate risk of rip currents.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
There is a moderate risk of rip currents 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.

NJZ026-020132-
Coastal Ocean-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for coastal portions of Ocean County
in New Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.
There is a moderate risk of rip currents.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
There is a moderate risk of rip currents 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.

NJZ027-020132-
Southeastern Burlington-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for southeastern Burlington County in
New Jersey.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.

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.

MDZ012-020132-
Kent MD-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
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.

MDZ015-020132-
Queen Annes-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Queen Annes County in Maryland.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
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.

MDZ019-020132-
Talbot-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
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.

MDZ020-020132-
Caroline-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Several instances of flooding are possible on Thursday, especially
in urban and poor-drainage areas and near particularly vulnerable small creeks and streams.
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.

ANZ430-020132-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

ANZ431-020132-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

ANZ450-020132-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0932 PM EDT Wed Jun 30 2021

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...Thursday through Tuesday.

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.

ANZ451-020132-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0932 PM EDT Wed Jun 30 2021

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...Thursday through Tuesday.

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.

ANZ452-020132-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0932 PM EDT Wed Jun 30 2021

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...Thursday through Tuesday.

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.

ANZ453-020132-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0932 PM EDT Wed Jun 30 2021

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...Thursday through Tuesday.

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.

ANZ454-020132-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0932 PM EDT Wed Jun 30 2021

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to the mouth of Delaware Bay out 20 nm.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

ANZ455-020132-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0932 PM EDT Wed Jun 30 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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.

In the hours before

Special weather statement, Jun 30, 6:53 PM EST, 1 hour 42 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
753 PM EDT Wed Jun 30 2021

NJZ008-010030-
Morris-
753 PM EDT Wed Jun 30 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN MORRIS COUNTY...

At 752 PM EDT, a strong thunderstorm was located over Morris Plains,
or over Morristown, moving northeast at 25 mph. Downpours and wind
gusts up to 35 mph are possible.

Locations impacted include...
Morristown, Dover, Madison, Florham Park, East Hanover, Lincoln Park,
Kinnelon, Boonton, Butler, Wharton, Rockaway, Morris Plains, Mountain
Lakes, Riverdale, Victory Gardens, Parsippany, Pequannock Township,
Succasunna-Kenvil, White Meadow Lake and Hanover Township.

This includes the following highways...
 Interstate 80 in New Jersey between mile markers 36 and 48.
 Interstate 287 in New Jersey between mile markers 31 and 54.

LAT...LON 4091 7434 4088 7434 4086 7432 4082 7434
      4079 7437 4076 7437 4071 7452 4087 7463
      4101 7435 4100 7430 4097 7428 4092 7429
      4090 7427
TIME...MOT...LOC 2352Z 240DEG 24KT 4082 7450

PO
Special weather statement, Jun 30, 7:16 PM EST, 1 hour 19 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
816 PM EDT Wed Jun 30 2021

NJZ009-PAZ060-101-103>106-010100-
Hunterdon-Lower Bucks-Upper Bucks-Eastern Montgomery-Western
Montgomery-Western Chester-Berks-
816 PM EDT Wed Jun 30 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN HUNTERDON...
SOUTHEASTERN BERKS...NORTHWESTERN MONTGOMERY...NORTHWESTERN BUCKS AND
NORTHEASTERN CHESTER COUNTIES...

At 815 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Revere to Elverson. Movement was east at
40 mph.

Wind gusts up to 40 mph are possible with these storms.

Locations impacted include...
Pottstown, Phoenixville, Lansdale, West Norriton, East Norriton,
Quakertown, Perkasie, Doylestown, Byram, Souderton, Bedminster,
Collegeville, Royersford, Flemington, Chalfont, Tinicum, Trappe,
Hatfield, Dublin and Ferndale.

This includes the following highways...
 Pennsylvania Turnpike between mile markers 297 and 305.
 Northeast Extension between mile markers 25 and 42.
 Interstate 176 in Pennsylvania near mile marker 1.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4057 7512 4049 7480 4011 7542 4012 7591
      4013 7591 4014 7588 4016 7591 4017 7591
TIME...MOT...LOC 0015Z 266DEG 36KT 4051 7513 4016 7586

PO
Special weather statement, Jun 30, 8:05 PM EST, 30 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
905 PM EDT Wed Jun 30 2021

NJZ008-010-012-010145-
Morris-Somerset-Middlesex-
905 PM EDT Wed Jun 30 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN MORRIS...CENTRAL
SOMERSET AND NORTHEASTERN MIDDLESEX COUNTIES...

At 905 PM EDT, a strong thunderstorm was located over Martinsville,
or near Plainfield, moving east at 35 mph.

Wind gusts up to 40 mph are possible with this storm.

Locations impacted include...
New Brunswick, Perth Amboy, Somerville, Somerset, Edison,
Bridgewater, Carteret, Madison, Middlesex, Bound Brook, Manville,
Chatham, Peapack And Gladstone, Far Hills, Millstone, Colonia,
Martinsville, Millington, Society Hill and Basking Ridge.

This includes the following highways...
 New Jersey Turnpike between exits 11 and 13.
 Interstate 78 in New Jersey between mile markers 30 and 43.
 Interstate 287 in New Jersey between mile markers 0 and 29.
 Garden State Parkway between mile markers 127 and 134.

LAT...LON 4056 7421 4055 7425 4050 7426 4050 7465
      4071 7467 4075 7436 4067 7446 4066 7445
      4067 7441 4065 7440 4060 7446 4061 7431
      4059 7429 4060 7426 4059 7420
TIME...MOT...LOC 0105Z 263DEG 31KT 4062 7452

PO
Special weather statement, Jun 30, 8:21 PM EST, 14 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
921 PM EDT Wed Jun 30 2021

DEZ001-NJZ016-010200-
New Castle-Salem-
921 PM EDT Wed Jun 30 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN NEW CASTLE AND
NORTHWESTERN SALEM COUNTIES...

At 921 PM EDT, a strong thunderstorm was located over Brantwood, or
near Elkton, moving east at 30 mph.

Wind gusts up to 45 mph are possible with this storm.

Locations impacted include...
Wilmington, Newark, Middletown, Pennsville, Carneys Point, New
Castle, Penns Grove, Salem, Woodstown, Alloway, Quinton, Delaware
City, Newport, Saint Georges, Mount Pleasant, Glasgow, Bear, Delaware
Memorial Bridge, Port Penn and Wilmington Manor.

This includes the following highways...
 New Jersey Turnpike near exit 1.
 Interstate 95 in Delaware between mile markers 0 and 13.
 Interstate 295 in New Jersey between mile markers 0 and 8.

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3979 7542 3978 7540 3976 7540 3975 7538
      3973 7538 3968 7530 3956 7524 3955 7525
      3945 7578 3966 7579
TIME...MOT...LOC 0121Z 250DEG 28KT 3955 7579

PO
Local storm report, Jun 30, 8:33 PM EST, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
933 PM EDT WED JUN 30 2021

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

0922 PM     HAIL             1 WNW MOUNT PLEASANT    39.52N 75.73W
06/30/2021  E0.70 INCH       NEW CASTLE         DE   PUBLIC

&&

STAARMANN
Local storm report, Jun 30, 8:34 PM EST, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
934 PM EDT WED JUN 30 2021

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

0841 PM     TSTM WND GST     DOYLESTOWN AIRPORT      40.33N 75.12W
06/30/2021  M40 MPH          BUCKS              PA   ASOS

&&

STAARMANN

The radar

The Philadelphia radar (KDIX), 41 km away, was scanning. The volume nearest the first event began at 01:35 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Monmouth

When
June 30, 8:35 PM EST
Where
Monmouth County, 0.87 mi NW of Englishtown
Measured
50 kt (58 mph) estimated gust
Reported by
Utility Company
Coordinates
40.310, -74.360

Several reports of downed trees and wires near Englishtown and north of Freehold. Some damage was likely caused by outflow winds. Time estimated from radar.

Thunderstorm Wind, Monmouth

When
June 30, 8:44 PM EST
Where
Monmouth County, 0.88 mi WSW of Holmdel
Measured
50 kt (58 mph) estimated gust
Reported by
Department of Highways
Coordinates
40.346, -74.196

A tree was downed on NJ-34 near Newman Springs Rd. Several power outages were reported in the area as well. Some damage was likely due to outflow winds. Time estimated from radar.

Thunderstorm Wind, Middlesex

When
June 30, 8:46 PM EST
Where
Middlesex County, 0.96 mi NE of South Old Bridge
Measured
50 kt (58 mph) estimated gust
Reported by
Department of Highways
Coordinates
40.391, -74.339

A tree was downed on NJ-18 north of Ferry Rd. All northbound lanes were closed. Time estimated from radar.

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 2021Every state in 2021This day in weather historyWarnings in New Jersey, June 2021

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: 957515, 957517, 957518.