Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 272, NWS Philadelphia/Mount Holly

August 7, 2023Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 7, 2023, 6:45 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 45 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 7, 2023, 6:45 PM EDT (22:45 UTC)
Expired
Aug 7, 2023, 7:30 PM EDT
In force
45 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 135 km from the middle of the area, began a volume at 22:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

What was reported inside it

TimeReportWhereRemark
Aug 7, 7:08 PM EDTTSTM WND DMG3 Ssw Christmans, PA911 Call Center received reports of downed trees on wires in Penn Forest Township. Time estimated from radar.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 23 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 7, 3:13 PM EDTTornado WatchSPC8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.8 hours before the alert went out and 236 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2023-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 36 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2023-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
36 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
726 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

311 
WUUS51 KPHI 072245
SVRPHI
PAC025-089-072330-
/O.NEW.KPHI.SV.W.0272.230807T2245Z-230807T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
645 PM EDT Mon Aug 7 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Carbon County in northeastern Pennsylvania...
  Northwestern Monroe County in northeastern Pennsylvania...

* Until 730 PM EDT.

* At 644 PM EDT, a severe thunderstorm was located near Christmans,
  or 10 miles north of Lehighton, moving northeast at 30 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Mount Pocono, Tobyhanna, Jim Thorpe, Weatherly, Reeders, Pocono
  Pines, Pocono Raceway, Lake Harmony, McMichael, Blakeslee, Long
  Pond, Albrightsville, Christmans, Sun Valley, Jonas, Meckesville
  and Merwinsburg.

This includes the following highways...
 Northeast Extension between mile markers 82 and 94.
 Interstate 80 in Pennsylvania between mile markers 280 and 299.
 Interstate 380 in Pennsylvania between mile markers 0 and 9.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM EDT for northeastern
Pennsylvania.

For your protection move to an interior room on the lowest floor of a
building.

A Tornado Watch remains in effect until 1100 PM EDT for northeastern
Pennsylvania.

&&

LAT...LON 4101 7533 4086 7580 4097 7584 4098 7582
      4098 7580 4101 7573 4103 7574 4103 7575
      4104 7576 4122 7541
TIME...MOT...LOC 2244Z 241DEG 25KT 4098 7571 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AKL
1 follow-up statement
760 
WWUS51 KPHI 072331
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
731 PM EDT Mon Aug 7 2023

PAC025-089-072340-
/O.EXP.KPHI.SV.W.0272.000000T0000Z-230807T2330Z/
Carbon PA-Monroe PA-
731 PM EDT Mon Aug 7 2023

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CARBON AND
NORTHWESTERN MONROE COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has moved out of the initial 
warning area. Therefore, the warning has been allowed to expire. A 
new warning has been issued for Eastern Carbon and Monroe Counties 
until 815 PM EDT.

A Tornado Watch remains in effect until 1100 PM EDT for northeastern
Pennsylvania.

Remember, a Severe Thunderstorm Warning still remains in effect for
Eastern Carbon and Monroe Counties until 815 PM EDT.

LAT...LON 4101 7533 4086 7580 4097 7584 4098 7582
      4098 7580 4101 7573 4103 7574 4103 7575
      4104 7576 4122 7541
TIME...MOT...LOC 2330Z 270DEG 25KT 4112 7537 

$$

AKL

What forecasters said that day

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

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 7, 6:15 PM EDT, 30 minutes earlier.

Area forecast discussion, Aug 7, 6:15 PM EDT, 30 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
615 PM EDT Mon Aug 7 2023

.SYNOPSIS...
Strong low pressure tracking from the Great Lakes to Ontario
brings showers and thunderstorms for Monday, some of which may
be severe. The low pulls away into Tuesday and high pressure
briefly settles in for the middle part of the week. Another
disturbance will arrive Thursday and bring an unsettled pattern
to close out the workweek.

&&

.NEAR TERM /THROUGH TUESDAY/...
Tornado Watch 605 has been expanded to include all of our
region.

Warm front appears to be north of our region while the cold
front over the Great Lakes and Ohio Valley continues to approach.

Although some isolated showers are developing out ahead of the
main line, the main line is just about to move into our region.
These storms have a history of producing damaging winds. High
res short term guidance shows storms likely to maintain strength
through roughly the I-95 corridor.

A significant severe weather outbreak continues to shape up
over the local area. Southerly flow continues to usher a warm
and humid airmass with surface dew points in the low to mid 70s.
with temperatures in the 80s, surface-based CAPE values are
already ranging from 2000 to 3000 J/kg in Delmarva, and
otherwise 1000 to 2000 J/kg, with values around 1000 J/kg in
northern New Jersey and the southern Poconos. Although clouds
remain over the area, latest satellite image showing that there
are breaks. If even a few hours of heating can occur, then those
CAPE values will rise even more, especially in the southern
areas.

Winds aloft will ramp up, with two areas of 40 kt to 50 kt
winds at 850 mb to 500 mb approaching in the 00Z to 03Z time
frame, and winds from 925 mb to 850 mb increase to 30 kt to 40
kt. One area move through southeast Pennsylvania and into
northern New Jersey, while the other area moves into Delmarva.
In addition, 0-3 km Helicity will increase to 100 m^2/s^2 to 200
m^2/s^2. Latest CAMS suggest a line of storms developing from
central New York, down through Pennsylvania, and into Maryland
and Virginia. This line moves into western counties by 6pm, and
works its way east through the evening. CAMS also suggesting the
line breaking into two segments, with one area moving into the
northern half of New Jersey, and the other moving into Delmarva.
Given higher CAPE values in Delmarva, CAMS showing higher
reflectivities there.

Damaging wind gusts are expected with the stronger storms.
Given the high helicity values, cannot rule out isolated
tornadoes and large hail.

Given the stronger wind speeds aloft, storms should be moving
relatively quickly. This would limit the threat for flash
flooding, unless there are training of cells. PWATs will be in
excess of 2 inches. Torrential rain is expected, so this could
lead to localized flash flooding. Will note that 1 hour FFG
values from RFC are generally 2.5 to 3 inches, and 3 hour FFG
values are 3.5 to 4.5 inches, thus chances for widespread flash
flooding are fairly low.

The line of storms should be east of the I-95 corridor by 10pm,
but storms may continue to pass through Delmarva and southern
New Jersey through midnight. Lingering showers and thunderstorms
may continue through the overnight, but otherwise, low clouds
and patchy fog will develop until winds turn west by Tuesday
morning.

A tight westerly pressure gradient develops between low
pressure over eastern Canada and high pressure building over the
Great Lakes, Ohio Valley, and Midwest. Winds will increase to
15 to 20 mph with gusts up to 25 mph during the day. Skies
partially clear out. As some shortwave energy associated with an
H5 trough passes north of the region Tuesday afternoon, there
is a chance for some showers and thunderstorms in northern New
Jersey, the Lehigh Valley, and southern Poconos.

Highs will be several degrees cooler on Tuesday, generally in
the upper 70s to low 80s. Surface dew points will drop into the
60s in the morning, and may even drop into the upper 50s by
afternoon due to mixing and those gusty winds.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/...
As high pressure slides closer and dry air continues to build
under northwesterly flow aloft, clouds will push out and give
way to mostly clear skies for Tuesday night. The gradient will
still remain tight and keep winds elevated overnight, so lows
will only dip into the low to mid 60s despite the drier air and
clear skies.

Surface high pressure slides to our south on Wednesday as brief
shortwave ridging passes through in more zonal flow through
Wednesday night. Dew points come down to the upper 50s/low 60s with
highs in the mid 80s (higher elevations may hold in the upper 70s),
so overall looking at a pretty nice day with some diurnal cumulus in
the afternoon. Wind will still remain a bit elevated as the gradient
relaxes through the day, but shouldn't be quite as windy as Tuesday.
Lows Wednesday night will fall to the low 60s. The downside to the
west-east flow is that the dry period looks to quickly give way to
an unsettled end to the week as an upper trough and surface low
slide by.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
A shortwave will dig into the Ohio Valley on Thursday with low
pressure downstream. Flow aloft will still remain more zonal, so
features should be quick to move through. At the surface, southerly
return flow will set up and increase dew points back into the 70s as
the column moistens. The first half of Thursday will be dry but
precip will move in from the west in the afternoon and evening.
Timing depends on the amplitude of the upper trough and how quickly
the surface low arrives, and there is still some discrepancy with
the GFS/ECMWF favoring a deeper trough with a flatter GEM solution.
Thinking that NBM PoPs are introducing precip too early so have
delayed the onset until primarily after 12z with the highest chances
later in the afternoon/evening which better matches recent trends of
the global guidance.

The unsettled pattern will continue through the weekend as another
upper trough swings through the Great Lakes. Most of Friday looks to
be dry with some flat shortwave ridging briefly taking hold ahead of
the trough. Another low pressure system will drag a cold front
through over the weekend, perhaps late day Saturday very early
Sunday, but forecast confidence is increasingly lower at this time,
so primarily held with continuity/NBM which maintains the 20-30%
chance of rain for the second half of Saturday into Sunday morning.
The ensembles then hold upper troughing in place across the
Northeast into early next week. Temperatures look to be near normal
through the weekend.

&&

.AVIATION /22Z MONDAY THROUGH SATURDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Through 06Z...The main line of storms is just west of many of
our TAF sites. One bowing segment appears that it will get very
close to KPHL and KILG. Therefore have updated these TAFs with
G50kt during the most likely time. Cannot rule out large hail or
even a tornado. S winds 10 to 15 kt with 20 to 25 kt gusts.
Moderate confidence overall.

Rest of tonight (06Z through 12Z)...SHRA/TSRA taper off.
Restrictions in stratus and fog with MVFR/IFR CIGs/VSBYs. S
winds 5 to 10 kt. Moderate confidence.

Tuesday (12Z through 00Z)...VFR conditions by 15Z or so. SW
winds 5 to 10 kt become W-NW 10 to 15 kt with 20 to 25 kt gusts.
High confidence.

Outlook...

Wednesday...VFR. Westerly wind around 10 knots with gusts to 20
knots. Moderate confidence.

Thursday...Scattered showers may result in periods of sub-VFR
conditions. Southwesterly wind 10-15 knots. Low confidence.

Friday...Some lingering sub-VFR conditions with showers in the
morning, otherwise VFR expected. Northwesterly wind 5-10 knots. Low
confidence.

&&

.MARINE...
South winds 15 to 20 kt into this evening. There may be a few
gusts to 25 kt, but outside of convection, not expecting
widespread 25+ kt gusts. Seas will be 3 to 4 feet.

Strong to severe thunderstorms with damaging winds and possible
waterspouts will affect the waters late this afternoon through
tonight. Storms should taper off after midnight. S winds 10 to
15 kt. Seas 3 to 4 feet. VSBY restrictions in fog possible late.

Tuesday will feature gusty west winds. A Small Craft Advisory
may be needed for 25 kt gusts. Seas will average 3 to 4 feet.

Outlook...

Wednesday...Small Craft Advisory conditions possible. Westerly
wind 15-20 knots with gusts to 20-25 knots in the morning
relaxing in the afternoon to 10-15 knots. Seas 3-5 feet
subsiding to 2-4 feet.

Thursday...No marine headlines expected. Southerly wind 10-15 knots
with gusts to 20 knots. Seas 2-3 feet.

Friday...No marine headlines expected. Southerly wind around 10
knots. Seas 2-3 feet.

Rip currents...

For the rest of today, there is a MODERATE risk for the
development of dangerous rip currents for the New Jersey and
Delaware beaches.

By Tuesday, winds will shift to offshore, so should see
gradually improving conditions, but due to the elevated surf may
see one more day of MODERATE conditions at NJ, while DE is
currently forecast to be LOW.

&&

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

&&

SYNOPSIS...Brudy
NEAR TERM...Johnson/MPS
SHORT TERM...Brudy/Deal
LONG TERM...Brudy/Deal
AVIATION...Brudy/Dodd/Johnson/MPS
MARINE...Brudy/Dodd/MPS
Hazardous weather outlook, Aug 7, 6:16 PM EDT, 29 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0616 PM EDT Mon Aug 07 2023

DEZ001-082216-
New Castle-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

DEZ002-082216-
Kent-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

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

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

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.

DEZ003-082216-
Inland Sussex-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

DEZ004-082216-
Delaware Beaches-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

PAZ054-082216-
Carbon-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

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

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

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.

PAZ055-082216-
Monroe-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.DAY ONE...Through tonight.

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

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

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.

PAZ060-082216-
Berks-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

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

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

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.

PAZ061-082216-
Lehigh-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

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

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

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.

PAZ062-082216-
Northampton-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

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

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

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.

PAZ070-082216-
Delaware-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

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

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

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.

PAZ071-082216-
Philadelphia-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

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

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

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.

PAZ101-082216-
Western Chester-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

PAZ102-082216-
Eastern Chester-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

PAZ103-082216-
Western Montgomery-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

PAZ104-082216-
Eastern Montgomery-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

PAZ105-082216-
Upper Bucks-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

PAZ106-082216-
Lower Bucks-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ001-082216-
Sussex-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ007-082216-
Warren-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ008-082216-
Morris-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ009-082216-
Hunterdon-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ010-082216-
Somerset-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ012-082216-
Middlesex-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ013-082216-
Western Monmouth-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ014-082216-
Eastern Monmouth-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ015-082216-
Mercer-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ016-082216-
Salem-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ017-082216-
Gloucester-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ018-082216-
Camden-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ019-082216-
Northwestern Burlington-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ020-082216-
Ocean-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ021-082216-
Cumberland-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ022-082216-
Atlantic-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ023-082216-
Cape May-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ024-082216-
Atlantic Coastal Cape May-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ025-082216-
Coastal Atlantic-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ026-082216-
Coastal Ocean-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

NJZ027-082216-
Southeastern Burlington-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

MDZ012-082216-
Kent MD-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

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

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

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.

MDZ015-082216-
Queen Annes-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

MDZ019-082216-
Talbot-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

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

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

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.

MDZ020-082216-
Caroline-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

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

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

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.

ANZ430-082216-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

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

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

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.

ANZ431-082216-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0616 PM EDT Mon Aug 07 2023

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

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

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

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.

ANZ450-082216-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

ANZ451-082216-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

ANZ452-082216-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

ANZ453-082216-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

ANZ454-082216-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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.

ANZ455-082216-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0616 PM EDT Mon Aug 07 2023

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

.DAY ONE...Through tonight.

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

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

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, Aug 7, 6:24 PM EDT, 21 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
624 PM EDT Mon Aug 7 2023

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

0610 PM     Tstm Wnd Dmg     Hockessin               39.79N 75.69W
08/07/2023                   New Castle         DE   Emergency Mngr

            A structure collapsed.

&&

DI
Local storm report, Aug 7, 6:30 PM EDT, 15 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
630 PM EDT Mon Aug 7 2023

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

0615 PM     Funnel Cloud     Coatesville             39.98N 75.82W
08/07/2023                   Chester            PA   Emergency Mngr

            EM reported funnel cloud near Coatesville.

&&

Hoeflich

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 5:33 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIBerks, Chester57 min
Aug 7, 5:37 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIDelaware53 min
Aug 7, 5:57 PM EDTAreal Flood AdvisoryPHIChester, Delaware79 min
Aug 7, 6:08 PM EDTTornado WarningPHIChester19 min
Aug 7, 6:21 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIBerks, Bucks, Chester, Delaware, Montgomery, Philadelphia69 min
Aug 7, 6:29 PM EDTAreal Flood AdvisoryPHIChester, Delaware, Montgomery, Philadelphia63 min
Aug 7, 6:35 PM EDTTornado WarningPHIChester, Delaware, Montgomery, Philadelphia25 min
Aug 7, 6:53 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Carbon, Lehigh, Monroe, Montgomery and 1 more52 min
Aug 7, 7:00 PM EDTAreal Flood AdvisoryPHIBerks, Lehigh, Montgomery, Northampton66 min
Aug 7, 7:20 PM EDTSevere Thunderstorm WarningPHIBucks58 min
Aug 7, 7:27 PM EDTSevere Thunderstorm WarningPHICarbon, Lehigh, Monroe, Northampton48 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2023Every severe thunderstorm warning in 2023

Sources

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