New Jersey, 2021

Tornadoes and Hail in New Jersey, July 29, 2021

July 29, 2021 · NWS PHI · 20 events in 4 counties and zones

A strong shortwave trough moved east-southeastward out of the Great Lakes region on July 29. An associated, strengthening surface low also tracked out of the Great Lakes and into upstate New York.

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
8
Property damage
None recorded
Crop damage
None recorded
Events
20

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 shortwave trough moved east-southeastward out of the Great Lakes region on July 29. An associated, strengthening surface low also tracked out of the Great Lakes and into upstate New York. A warm front associated with this low moved through most of New Jersey and eastern Pennsylvania during the late morning and early afternoon hours. This front, combined with the remains of widespread convection to the west from the previous overnight and morning hours, brought significant cloud cover to the eastern mid-Atlantic for much of the day on the 29th. This was mainly in the form of mid and high level cloud cover, however, and temperatures still warmed to near seasonal levels behind the warm front, allowing moderate to strong instability to build. Meanwhile, the robust surface and upper level disturbances approaching the region brought both strong forcing and unseasonably strong wind shear. By mid-afternoon, an unusually favorable convective environment existed over eastern Pennsylvania and New Jersey.

The result of this environment was a rare tornado outbreak across the area. Initially, during the mid-afternoon hours, mixed convective modes over east-central Pennsylvania produced a couple instances of damaging wind and brief tornadoes as storms attempted to overcome cloud cover and some light stratiform rain in the area. With time, as storms moved into better instability and a less contaminated environment over far eastern Pennsylvania and New Jersey, they took on more supercellular structures. Multiple cyclic supercells would go on to produce several tornadoes, three of them strong (EF2+) over eastern Pennsylvania and New Jersey. Convection persisted past the sunset hour with little to no loss in intensity due to the strong forcing. The only thing that put an end to the outbreak was the coastline, as storms moved offshore towards 9 to 10PM local time. Even offshore, one supercell continued to exhibit strong rotation and likely produced a strong waterspout for tens of miles over the Atlantic.

Fortunately, and miraculously, no serious injuries or loss of life occurred as a result of this outbreak. With the passage of a cold front late on the evening of the 29th, cooler, drier, and much less active weather would grace the region for several days as clean-up efforts began.

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 29, 3:16 PM EST, 1 hour 45 minutes earlier.

Area forecast discussion, Jul 29, 3:16 PM EST, 1 hour 45 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
416 PM EDT Thu Jul 29 2021

.SYNOPSIS...
A warm front will lift north of the area this evening before a
cold front moves across the area tonight. High pressure located
across the Mid West on Friday will build toward the east coast
on Saturday. Another cold front is forecast to move across the
area later Sunday into Sunday night. High pressure may briefly
affect the area before an area of low pressure lifts north
offshore of the east coast on Tuesday. The frontal boundary to
our south may lift northward and affect the area for the middle
to end of next week.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
A Tornado Watch is in effect for the entire forecast area
through 9 PM tonight.

The warm front continues to push northward this afternoon, as
we have seen some destabilization occur fairly quickly behind
it. The remnant MCV that moved through the Great Lakes is
pushing into eastern Pennsylvania and should move off of the New
Jersey coast this evening.

Most of the region remains in a slight or enhanced risk for
severe weather, as issued by the SPC. The threats are damaging
winds, large hail, and an isolated tornado. The primary threat
time will be this afternoon into evening.

While there are clouds clearly seen on visible satellite across
the area, there are many breaks occurring with peeks of sun
coming through. This is enhancing our instability and as a
result confidence has grown that we will see convection develop
and move through our area this afternoon and evening.

Some early showers and thunderstorms have started to pop up
across Delmarva and New Jersey with the main line of storms off
to the west in central PA. There is still support for effective
bulk shear values of ~45 kts, which will be more than sufficient
to support rotating updrafts. Some upscale growth is forecast
as multiple cold pools start to be deposited and merge.

While areas to the north may see less of the action this
afternoon, there is still the possibility for some strong to
severe storms in those areas. To the south and east, we have
seen much more clearing and temps have risen appreciably in
response. Dew points have climbed into the upper 60s to lower
70s, and heavy down pours remain another threat today though the
storms should have sufficient motion so flash flooding is not
as high on the threat list at this time. However, there is
potential that along the frontal boundary we could see some back
building so we will need to monitor those areas for flooding
concerns.

As the storms clear the coast, surface low pressure will be
located near the NY/Canada border and be dragging a surface cold
front through the area. Winds will slowly turn from the
northwest through the night with skies slowly clearing from the
west.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH FRIDAY NIGHT/...
Surface low pressure moves off to the northeast with its
attendant cold front offshore by Friday morning. With the front
offshore, the flow across the region will turn to the west and
settle out of the northwest. Winds may become gusty through the
afternoon, with gusts around 25 mph or so. Skies will be
relatively clear through the day and with dew points dropping
down into the 50s (potentially 40s in spots) it will feel nice
and dry and pretty comfortable for late July. The cooler air
being drawn into our region will be slightly below normal with
highs into the 70s through the southern Poconos, northwest New
Jersey and the Lehigh Valley and low to mid 80s through the rest
of the region. Depending on how far offshore the front moves,
we could see some temps remaining in the upper 80s for a while
across southern Delaware and nearby eastern Maryland.

Friday night will be cold when compared to what we typically
see in late July. The clear skies will help with radiative
cooling and with the winds dropping off overnight, we should see
things drop off decently overnight. Overnight lows will be a
chilly upper 40s to low 50s across the northern zones through
the Lehigh Valley and into portions of central New Jersey.
Around the urban corridor and through Delaware, Maryland, and
southern New Jersey, temperatures will be in the mid 50s to
lower 60s.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
The first half of the weekend is expected to be quiet, before
the potential for unsettle weather returns for the end of the
weekend through much of next week.

On Saturday, high pressure to the west will control the
weather, providing a dry forecast through Saturday night. Below
normal temperatures are expected through Saturday night as well.

On Sunday, active weather could once again return to the
forecast. An area of low pressure is forecast to move across
southeast Canada and bring a frontal boundary/surface trough
across the east coast Sunday into Sunday night. Meanwhile, an
area o flow pressure may form along the frontal boundary to our
south and move to the northeast offshore of the Mid Atlantic
coast. There will be a chance of showers and thunderstorms
through the day Sunday, most likely associated with the
approaching frontal boundary coming from the west. The low off
the coast may remain far enough offshore to not bring any
impacts to the area.

On Monday, our area will be in between the departing system
from the weekend, and another potential coastal low that is
expected Tuesday. Therefore dry weather is expected on Monday.

However, on Tuesday, another coastal low is forecast to develop
to our south and may end up inching close enough to the coast
to bring a chance of showers and thunderstorms to the area.

As we go through the second half of the week, unsettled weather
is possible to continue for Wednesday and Thursday as the front
to the south may begin moving back northward and into the area
while a couple of low pressure systems may develop and move near
the area as well.

Temperatures for the long term period are expected to be near
or slightly below normal for the weekend into much of next week.

&&

.AVIATION /20Z THURSDAY THROUGH TUESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Tonight...Showers and thunderstorms will move the terminals
from west to east this afternoon, ending between 22Z-03Z.
Conditions will drop to MVFR/IFR in and around any storms. Winds
may gust in excess of 30 knots in and near thunderstorms.
Conditions are expected to be MVFR for a period of time behind
the storms before returning to VFR by late tonight. South to
southwest winds around 10 to 15 knots, becoming northwest around
5 to 10 knots overnight. Moderate confidence overall with low
confidence in thunderstorm timing.

Friday...Mainly VFR. Northwest winds around 10 to 15 knots with
gusts up to 25 knots possible in the afternoon. High
confidence.

Outlook...

Saturday-Saturday night...VFR. Northwest winds 5-10 mph during
the day, light and variable overnight.

Sunday...Mostly VFR. Chance of showers and thunderstorms which
may temporarily lead to lower conditions. Southwest winds 5-10
knots, gusts 15-20 knots possible.

Sunday night...Chance for conditions to lower below VFR
overnight. South winds early, becoming northwest overnight.

Monday-Monday night...Mostly VFR expected. Northwest winds 5-10
knots during the day, light and variable overnight.

Tuesday-Tuesday night...Mostly VFR. Chance of showers and
thunderstorms which may temporarily lead to lower conditions.
Northwest winds 5-10 knots during the day, light and variable
overnight.

&&

.MARINE...
SCA remain up for the ocean waters through midnight tonight.

Winds will gusts around 25 knots on the ocean in response to a
tightening pressure gradient. Winds will start to drop off
tonight. Seas around 3 to 4 feet.

Mainly sub-SCA conditions are expected for Friday. Northwest
winds around 10 to 15 knots with gusts around 20 knots. Seas
will remain around 3 to 4 feet. A few gusts may near 25 knots
late afternoon into Friday night in the strong northwest flow,
especially in the coastal waters off of northern and central New
Jersey. However, will hold off on issuing any new SCA's at this
time until the current SCA has expired.

Outlook...

Saturday-Tuesday...Conditions are expected to remain below Small
Craft Advisory levels through the period.

Rip Currents...

Winds will increase to 15 to 20 kts today with gusts at SCA
criteria. There will be an onshore component for the NJ coast
today as winds veer from the south. Given the above, and the 8
second period forecast, the rip risk for Coastal Cape May and
Coastal Atlantic will be MODERATE today. The rest of the beaches
will be kept at LOW given the orientation of the coastline
relative to the wind direction. Winds shift offshore for Friday,
so the rip risk for Friday will be LOW.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Small Craft Advisory until midnight EDT tonight for ANZ450>455.

&&

Synopsis...Robertson
Near Term...Meola
Short Term...Meola
Long Term...Robertson
Aviation...Meola/Robertson
Marine...Meola/Robertson
Hazardous weather outlook, Jul 29, 4:05 PM EST, 56 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0505 PM EDT Thu Jul 29 2021

DEZ001-302105-
New Castle-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

DEZ002-302105-
Kent-
0505 PM EDT Thu Jul 29 2021

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

DEZ003-302105-
Inland Sussex-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

DEZ004-302105-
Delaware Beaches-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ054-302105-
Carbon-
0505 PM EDT Thu Jul 29 2021

This Hazardous Weather Outlook is for Carbon 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...Friday through Wednesday.

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.

PAZ055-302105-
Monroe-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

PAZ060-302105-
Berks-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

PAZ061-302105-
Lehigh-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

PAZ062-302105-
Northampton-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

PAZ070-302105-
Delaware-
0505 PM EDT Thu Jul 29 2021

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ071-302105-
Philadelphia-
0505 PM EDT Thu Jul 29 2021

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ101-302105-
Western Chester-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ102-302105-
Eastern Chester-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ103-302105-
Western Montgomery-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ104-302105-
Eastern Montgomery-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ105-302105-
Upper Bucks-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ106-302105-
Lower Bucks-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ001-302105-
Sussex-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

NJZ007-302105-
Warren-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

NJZ008-302105-
Morris-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

NJZ009-302105-
Hunterdon-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

NJZ010-302105-
Somerset-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

NJZ012-302105-
Middlesex-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

NJZ013-302105-
Western Monmouth-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

NJZ014-302105-
Eastern Monmouth-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

NJZ015-302105-
Mercer-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ016-302105-
Salem-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ017-302105-
Gloucester-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ018-302105-
Camden-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ019-302105-
Northwestern Burlington-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ020-302105-
Ocean-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ021-302105-
Cumberland-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ022-302105-
Atlantic-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ023-302105-
Cape May-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ024-302105-
Atlantic Coastal Cape May-
0505 PM EDT Thu Jul 29 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...Friday through Wednesday.

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.

NJZ025-302105-
Coastal Atlantic-
0505 PM EDT Thu Jul 29 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...Friday through Wednesday.

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.

NJZ026-302105-
Coastal Ocean-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ027-302105-
Southeastern Burlington-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

MDZ012-302105-
Kent MD-
0505 PM EDT Thu Jul 29 2021

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

MDZ015-302105-
Queen Annes-
0505 PM EDT Thu Jul 29 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

MDZ019-302105-
Talbot-
0505 PM EDT Thu Jul 29 2021

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

MDZ020-302105-
Caroline-
0505 PM EDT Thu Jul 29 2021

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

ANZ430-302105-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

ANZ431-302105-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

ANZ450-302105-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0505 PM EDT Thu Jul 29 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...Friday through Wednesday.

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.

ANZ451-302105-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0505 PM EDT Thu Jul 29 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...Friday through Wednesday.

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.

ANZ452-302105-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0505 PM EDT Thu Jul 29 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...Friday through Wednesday.

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.

ANZ453-302105-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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.

ANZ454-302105-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0505 PM EDT Thu Jul 29 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.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

ANZ455-302105-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0505 PM EDT Thu Jul 29 2021

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...Friday through Wednesday.

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 29, 3:53 PM EST, 1 hour 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
453 PM EDT THU JUL 29 2021

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

0415 PM     TSTM WND DMG     1 NW WEISENBERG TWP     40.62N 75.76W
07/29/2021                   LEHIGH             PA   911 CALL CENTER

            TREES AND WIRES DOWN WITH PARTIALLY TORN OFF
            ROOF OF A BUILDING. POSSIBLE TORNADO DAMAGE.
            TIME ESTIMATED BY RADAR.

&&
Local storm report, Jul 29, 3:55 PM EST, 1 hour 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
455 PM EDT THU JUL 29 2021

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

0408 PM     TSTM WND DMG     LYNN TWP                40.68N 75.81W
07/29/2021                   LEHIGH             PA   PUBLIC

            TREES AND WIRES DOWN. TIME ESTIMATED BY
            RADAR.

&&
Local storm report, Jul 29, 4:01 PM EST, 1 hour before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
501 PM EDT THU JUL 29 2021

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

0427 PM     TSTM WND DMG     SLATINGTON              40.75N 75.60W
07/29/2021                   LEHIGH             PA   911 CALL CENTER

            TREE DOWN AND UPROOTED. TIME ESTIMATED BY
            RADAR.

&&
Special weather statement, Jul 29, 4:01 PM EST, 1 hour before
Special Weather Statement
National Weather Service Mount Holly NJ
501 PM EDT Thu Jul 29 2021

NJZ008-292130-
Morris-
501 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL MORRIS COUNTY...

At 501 PM EDT, a strong thunderstorm was located over Morris Plains,
or over Morristown, moving east at 25 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Morristown, Madison, Florham Park, East Hanover, Lincoln Park,
Boonton, Morris Plains, Mountain Lakes, Parsippany and Hanover
Township.

This includes the following highways...
 Interstate 80 in New Jersey between mile markers 41 and 48.
 Interstate 287 in New Jersey between mile markers 35 and 44.

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Tornado Watch remains in effect until 900 PM EDT for northern New
Jersey.

LAT...LON 4091 7427 4091 7434 4088 7434 4086 7432
      4079 7437 4077 7437 4077 7449 4085 7454
      4095 7428 4092 7429
TIME...MOT...LOC 2101Z 249DEG 21KT 4082 7443

Staarmann
Local storm report, Jul 29, 4:19 PM EST, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
519 PM EDT THU JUL 29 2021

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

0515 PM     TSTM WND GST     1 ESE MILFORD SQUARE    40.44N 75.38W
07/29/2021  M53 MPH          BUCKS              PA   AWOS

            QUAKERTOWN AIRPORT AWOS MEASURED GUST.

&&

STAARMANN
Special weather statement, Jul 29, 4:59 PM EST, 2 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
559 PM EDT Thu Jul 29 2021

MDZ015-292230-
Queen Anne's-
559 PM EDT Thu Jul 29 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN QUEEN ANNE'S
COUNTY...

At 559 PM EDT, a strong thunderstorm was located over Severn River,
moving southeast at 30 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Romancoke, Chester, Stevensville, Grasonville and Stevensville South.

A Tornado Watch remains in effect until 900 PM EDT for northeastern
Maryland.

LAT...LON 3895 7636 3904 7631 3898 7628 3897 7622
      3899 7615 3893 7621 3896 7625 3890 7625
      3894 7628 3893 7630 3890 7628 3891 7631
      3896 7631 3891 7632 3891 7634 3886 7633
      3884 7637 3884 7638
TIME...MOT...LOC 2159Z 304DEG 27KT 3898 7641

Staarmann

The radar

The Philadelphia radar (KDIX), 63 km away, was scanning. The volume nearest the first event began at 22:02 UTC.

Open the radar archive at this moment

Event by event

7 thunderstorm wind, 7 hail, 6 tornado. Local standard time, as filed.

Tornado, Mercer

When
July 29, 5:01 PM EST to 5:14 PM EST
Where
Mercer County, 3.69 mi WNW of Titusville to 0.3 mi SE of Washington Crossing
Rating
EF2
Path length
6.03 mi
Path width
400 yd
Reported by
NWS Storm Survey
Coordinates
40.343, -74.943

The tornado which began in New Hope, Pennsylvania crossed the Delaware |River and entered Mercer County, New Jersey, in the area of |Washington Crossing. Multiple reports of residential tree damage |were received from Washington Crossing, and the survey team |observed tree damage along River Rd on the New Jersey side of the |Delaware River. From there the tornado continued southeast and |crossed Pleasant Valley Rd. The first indications of EF2 damage |came on that road, with numerous large hardwood and softwood trees|snapped, sheared, and/or uprooted. The tornado continued |southeastward and crossed through Baldpate Mountain. Continued |heavy tree damage was observed in this area. An access road to the|top of the mountain was barely passable when the survey team |reached it in late afternoon, after many hours of tree clearing |work by local parks officials and private companies. Hundreds of |trees were snapped or damaged on this mountain. Damage continued |down the mountain through Fiddlers Creek Rd and Church Rd. The |tornado path then crossed Washington Crossing State Park. Further |damage was observed just southeast along Bear Tavern Rd. In fact, |some of the largest downed trees were observed in this area. |However, by this point damage became increasingly unidirectional |as the storm's rear flank downdraft likely wrapped around the |tornadic circulation. Sufficient evidence of tornadic winds still |existed in the Bear Tavern Rd area, but it is estimated the |tornado lifted soon after, shortly before entering much more |densely populated areas near the Trenton Mercer Airport.

Thunderstorm Wind, Somerset

When
July 29, 5:02 PM EST
Where
Somerset County, 0.52 mi W of Pluckemin
Measured
55 kt (63 mph) estimated gust
Reported by
Public
Coordinates
40.650, -74.640

A few small trees were blown down on Timothy Ln in Bedminster. Time estimated from radar.

Hail, Mercer

When
July 29, 5:10 PM EST
Where
Mercer County, 1.26 mi ENE of Harbourton
Measured
0.75 in hail
Reported by
Public
Coordinates
40.360, -74.830

Thunderstorm Wind, Mercer

When
July 29, 5:25 PM EST
Where
Mercer County, 0.87 mi NW of Slackwood
Measured
50 kt (58 mph) estimated gust
Reported by
Fire Department/Rescue
Coordinates
40.280, -74.740

Wires were downed along West Church Rd.

Tornado, Mercer

When
July 29, 5:56 PM EST to 6:05 PM EST
Where
Mercer County, 1.42 mi NE of Robbinsville Arpt to 1.41 mi WNW of Hightstown
Rating
EF1
Path length
1.64 mi
Path width
100 yd
Reported by
NWS Storm Survey
Coordinates
40.237, -74.585

The Windsor-Robbinsville Township tornado began on Route 130 just|south of the town of Windsor near the Assunpink Creek. A few |hardwood trees were uprooted along the highway near the Chestnut |Montessori. The building lost a portion of its roofing material |and several other hardwood trees were uprooted or snapped just |behind the property into a small wooded area. The tornado then |continued in a somewhat transient and weak manner through a series|of fields and tree lines. A few large tree branches were snapped |off near a farm home on Windsor Road and a hardwood tree in a tree|line was uprooted across the street. The sporadic tree damage |continued along Perrineville Road where a large section of a tree |was snapped off at another residence. The tornado then produced an|area of intense convergent tree damage near the intersection of |Perrineville Road and Voelbel Road where numerous trees were |snapped or uprooted. The tornado ended just downstream from this |intersection at a residence on Perrineville Road where a final |tree was uprooted. Despite its short path length, the tornado was on the ground for nearly 10 minutes, and radar data corroborates its motion as being much slower than other tornadoes on this day.

Thunderstorm Wind, Burlington

When
July 29, 6:10 PM EST
Where
Burlington County, 0.59 mi NNW of Stevens
Measured
50 kt (58 mph) estimated gust
Reported by
Public
Coordinates
40.088, -74.824

Trees and wires were downed along Neck Rd.

Hail, Burlington

When
July 29, 6:19 PM EST
Where
Burlington County, 1.59 mi E of Delanco
Measured
1 in hail
Reported by
Public
Coordinates
40.050, -74.920

Hail, Burlington

When
July 29, 6:19 PM EST
Where
Burlington County, 0.53 mi W of Willingboro
Measured
1.5 in hail
Reported by
Public
Coordinates
40.030, -74.890

Thunderstorm Wind, Burlington

When
July 29, 6:19 PM EST
Where
Burlington County, Rancocas Woods
Measured
50 kt (58 mph) estimated gust
Reported by
Trained Spotter
Coordinates
40.020, -74.880

A tree was blown down, and large branches were blown down from other trees. Time estimated from radar.

Hail, Burlington

When
July 29, 6:26 PM EST
Where
Burlington County, 0.69 mi N of Timbuctoo
Measured
1 in hail
Reported by
Official NWS Observations
Coordinates
40.010, -74.820

Observed at the NWS office.

Hail, Burlington

When
July 29, 6:27 PM EST
Where
Burlington County, 0.69 mi S of Timbuctoo
Measured
1.5 in hail
Reported by
Public
Coordinates
39.990, -74.820

Hail, Burlington

When
July 29, 6:29 PM EST
Where
Burlington County, 1.38 mi N of Timbuctoo
Measured
1.25 in hail
Reported by
NWS Employee
Coordinates
40.020, -74.820

Thunderstorm Wind, Burlington

When
July 29, 6:30 PM EST
Where
Burlington County, 1.59 mi E of Rancocas Woods
Measured
60 kt (69 mph) estimated gust
Reported by
Public
Coordinates
40.020, -74.850

Metal bleachers were displaced, a fence and sign were blown down, and some shingles were blown off. Damage photos were consistent with straight line winds. Time estimated from radar.

Hail, Burlington

When
July 29, 6:31 PM EST
Where
Burlington County, 1.06 mi W of Mt Holly
Measured
1.25 in hail
Reported by
Public
Coordinates
40.000, -74.800

Thunderstorm Wind, Burlington

When
July 29, 6:35 PM EST
Where
Burlington County, 0.53 mi E of Timbuctoo
Measured
50 kt (58 mph) estimated gust
Reported by
Trained Spotter
Coordinates
40.000, -74.810

A large tree was uprooted.

Tornado, Ocean

When
July 29, 7:04 PM EST to 7:08 PM EST
Where
Ocean County, 2.56 mi SSE of Archers Corner to 2.15 mi WNW of (Nel)nas Lakehurst
Rating
EF0
Path length
0.76 mi
Path width
80 yd
Reported by
State Official
Coordinates
40.047, -74.428

The tornado touched down east of Hawkin Road near the intersection |of Bordens Mill Branch and Success Branch in Jackson Township. The |entire life cycle of this tornado was within a large wooded area |between Success Lake and the Lakehurst Naval Air Field. Based on |aerial images, the damage was limited to some snapped and uprooted |trees. The tornado occurred about 7 miles north of the Fort Dix |Doppler Radar (KDIX), which showed a well defined velocity couplet |along with a Tornado Debris Signature (TDS) in the Correlation |Coefficient data. The radar data showed the circulation was short-|lived as it moved eastward across the extensive wooded area |southwest of Success Lake. Based on the aerial images, this tornado |was rated an EF-0 with estimated peak winds up to 80 mph given the |damage to numerous softwood trees.

The National Weather Service would like to thank the New Jersey |Civil Air Patrol (CAP) for their extensive assistance by flying |aerial surveys to find damage produced by this tornado.

Tornado, Burlington

When
July 29, 7:42 PM EST to 7:43 PM EST
Where
Burlington County, 7.71 mi ESE of Chatsworth to 7.86 mi ESE of Chatsworth
Rating
EF1
Path length
0.21 mi
Path width
250 yd
Continued into
Ocean, Nj (PHI)
Reported by
NWS Storm Survey
Coordinates
39.775, -74.397

A tornado touched down on the evening of July 29 in a heavily |forested area in the eastern portion of Woodland Twp in southern |New Jersey. The start location is estimated to be between |Stevenson Rd, where survey crews found no damage, and Whiting Rd |about a mile and a half away, where tree damage was observed. The |estimate, also aided by radar, places the start just west of the |border of Burlington and Ocean Counties, though no damage was directly observed in Burlington County due to accessibility issues. After touching down, the |tornado moved in an east-northeasterly direction and quickly crossed the Ocean County border.

Thunderstorm Wind, Ocean

When
July 29, 7:43 PM EST
Where
Ocean County, 0.87 mi SE of Silverton
Measured
60 kt (69 mph) estimated gust
Reported by
NWS Storm Survey
Coordinates
40.010, -74.140

A damaging wind event occurred in the Silverton section of Toms |River, New Jersey. The area was surveyed by a National Weather |Service storm survey team. Multiple areas of minor tree and siding|damage were observed roughly along a path from near Alissa Dr to |Arkansas Ave. The most significant damage occurred in the area of |Silverton Park near the Silverton EMS building. One large tree was|snapped on the north side of Silverton Park near Maine St, and a |couple of other trees nearby lost limbs. A small section of |siding was also removed from the EMS building just across the |street. Sporadic, minor tree damage continued along a path east-|northeastward from there before ending in the area of Green |Island. Radar indicated some weak rotation in the area. Dual |polarization data indicated a feature which looked similar to a |tornado debris signature, but is thought more likely to be a radar|artifact based on further analysis. While it cannot be ruled out |that a brief tornado touched down, there is insufficient evidence |to confirm this. Therefore, the Silverton Wind Event has been|classified as straight line wind damage of around 60 to 70 mph.

Tornado, Ocean

When
July 29, 7:43 PM EST to 7:51 PM EST
Where
Ocean County, 0.76 mi WSW of Cedar Bridge to 2.51 mi ENE of Brookville
Rating
EF1
Path length
6.31 mi
Path width
250 yd
Reported by
NWS Storm Survey
Coordinates
39.776, -74.393

The tornado estimated to have touched down in the New Jersey pine barrens over Burlington County moved into Ocean County, where damage was first observed. The bulk of the damage consisted of large snapped and uprooted pine and spruce |trees with a few red maple trees. Some of the heaviest damage occurred on Old|Cedar Bridge Rd near the Cedar Bridge Tavern Historic Site. The |tornado crossed Route 72 before moving through over a mile of |inaccessible forest land. Tree damage was found again along Jones |Rd. From there the tornado moved into the Wells Mills area where |the path of tree damage continued. A number of snapped trees and |large limbs were found in the area of Wells Mills County Park. The|tornado path appeared to end a few hundred yards east of this |location. The degree of tree damage along the middle portion of |the track was consistent with a higher end EF1 tornado.

Tornado, Ocean

When
July 29, 8:03 PM EST to 8:13 PM EST
Where
Ocean County, 1.57 mi E of Barnegat to 0.51 mi ENE of Barnegat Light
Rating
EF2
Path length
4.2 mi
Path width
75 yd
Injuries
8 direct, 0 indirect
Reported by
NWS Storm Survey
Coordinates
39.754, -74.191

The same supercell which produced a tornado in the New Jersey |Pine Barrens cycled and produced another tornado in far eastern |Ocean County. The tornado touched down near the immediate western |shore of Barnegat Bay. At least one building near Bay Beach off |Bayshore Dr sustained roofing damage. The tornado then moved over |Barnegat Bay as a waterspout. It came ashore in the area of High |Bar Harbor in Long Beach Twp.

The most severe damage was noted to a house on the corner of |Antioch Rd and Arnold Blvd. This house was facing west-southwest, |and had its entire roof structure lifted off and tossed one to two|houses to the east. The house walls remained standing but most of|the doors and windows on the east and west sides of the house |were completely blown out, with significant damage to the inside |of the house. A two- by-four from an adjacent house impaled the |wall on the west side of the house. Eight people were in the house|at the time the tornado hit, but they were able to take shelter |in an interior closet, with only minor injuries sustained. In |addition, on the north side of the house, a car in the driveway |was pushed sideways several feet and their boat flipped into their|neighbor's boat. The boat's trailer was tossed about 50 feet into|a house just to the east. The degree and orientation of damage |was consistent with tornadic winds of 115 to 120 mph, which is EF2|intensity.

Continuing east-northeast, about a dozen homes on the south side |of Arnold Blvd sustained significant uplift of roof material, |siding damage or removal, collapse of porch, patio, and sunroom |structures, and blown out windows. Several large trees were |uprooted and lay pointing to the east-northeast, as well as downed|power poles.

The tornado moved east or slightly north of east from Arnold |Blvd, over an open salt marsh, before intersecting a few houses on|the corner of Collier Rd and Sunset Blvd. The most significant |damage was to a house on the northwest corner of Collier and |Sunset, which sustained siding damage, partial roof removal, |blowout of the storm surge walls on the basement level of the |elevated structure, and a large tree uprooted and laying to the |east-northeast. Power poles and large trees were downed on Sunset |Blvd, adjacent to the High Bar Harbor Yacht Club. There was damage|to several boats in the yacht club marina, but this was mainly |due to lofted debris being tossed into the marina. The circulation|then moved into the cove east of the marina. However, no further |significant damage was noted on the east side of the cover in |Barnegat Light, indicating the tornado had likely lifted. This is |corroborated by radar data which showed a weakening of the |circulation and a likely dissipation before it crossed into the |open Atlantic.

What these are

Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
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.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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 historyThe tornado archive for New Jersey, 2021Warnings in New Jersey, July 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: 965633, 965429, 965424, 965428, 965635, 965427, 965420, 965423, 965430, 965421, 965426, 965422, 965431, 965425, 965432, 1109692, 965637, 965433, 965638, 965636.