Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 311, NWS Philadelphia/Mount Holly

September 7, 2023Chester County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 7, 2023, 5:48 PM EDT for Chester County, Pennsylvania. It was in force for 42 min. 3 reports 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
Sep 7, 2023, 5:48 PM EDT (21:48 UTC)
Expired
Sep 7, 2023, 6:30 PM EDT
In force
42 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Chester County, PA

The radar

The Philadelphia radar (KDIX), 126 km from the middle of the area, began a volume at 21:50 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
Sep 7, 6:05 PM EDTHAIL 1Coatesville, PAPicture of 1 inch hail measured in Coatesville. Time estimated.
Sep 7, 6:06 PM EDTHAIL 0.5Caln Twp, PAPublic reports half inch hail in Caln Twp. Only lasted a few minutes.
Sep 7, 6:28 PM EDTHAIL 0.7Downington, PAMixture of pea up to dime sized hail reported in Downingtown.

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 17 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
Sep 7, 1:14 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.8 hours before the alert went out and 174 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, Washington/Dulle, VA at 12:00Z on 2023-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2091 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, Washington/Dulle, VA at 12:00Z on 2023-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
2091 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

155 
WUUS51 KPHI 072148
SVRPHI
PAC029-072230-
/O.NEW.KPHI.SV.W.0311.230907T2148Z-230907T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
548 PM EDT Thu Sep 7 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Chester County in southeastern Pennsylvania...

* Until 630 PM EDT.

* At 547 PM EDT, a severe thunderstorm was located over Cochranville,
  or 14 miles northwest of Newark, moving north at 25 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Coatesville, Downingtown, Parkesburg, West Grove, Honey Brook,
  Cochranville, Glenmoore, Chester Springs, Lionville,
  Lionville-Marchwood, Atglen, South Coatesville, Modena and
  Thorndale.

This includes Pennsylvania Turnpike between mile markers 307 and 313.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.

&&

LAT...LON 4001 7596 4004 7593 4011 7594 4010 7561
      3981 7581 3985 7598
TIME...MOT...LOC 2147Z 194DEG 20KT 3987 7588 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MPS
2 follow-up statements
617 
WWUS51 KPHI 072210
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
610 PM EDT Thu Sep 7 2023

PAC029-072230-
/O.CON.KPHI.SV.W.0311.000000T0000Z-230907T2230Z/
Chester PA-
610 PM EDT Thu Sep 7 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR CENTRAL CHESTER COUNTY...

At 610 PM EDT, a severe thunderstorm was located over Coatesville, or
9 miles west of West Chester, moving northeast at 20 mph.

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

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Wind damage to roofs, 
         siding, trees, and power lines is possible.

Locations impacted include...
Coatesville, Downingtown, Parkesburg, Lionville, Glenmoore,
Lionville-Marchwood, Chester Springs, South Coatesville, Modena and
Thorndale.

This includes Pennsylvania Turnpike between mile markers 307 and 313.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

&&

LAT...LON 3984 7579 3994 7593 4011 7585 4010 7561
TIME...MOT...LOC 2210Z 209DEG 19KT 3996 7578 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MPS
597 
WWUS51 KPHI 072221 RRA
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
621 PM EDT Thu Sep 7 2023

PAC029-072231-
/O.EXP.KPHI.SV.W.0311.000000T0000Z-230907T2230Z/
Chester PA-
621 PM EDT Thu Sep 7 2023

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CHESTER COUNTY WILL
EXPIRE AT 630 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southeastern Pennsylvania.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.

LAT...LON 3984 7579 3994 7593 4011 7585 4010 7561
TIME...MOT...LOC 2221Z 194DEG 20KT 4002 7576 

$$

MPS

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 Sep 7, 4:18 PM EDT, 1 hour 30 minutes earlier.

Area forecast discussion, Sep 7, 4:18 PM EDT, 1 hour 30 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
418 PM EDT Thu Sep 7 2023

.SYNOPSIS...
A weak surface trough will become established across parts of
our region today well ahead of a cold front. The cold front is
forecast to arrive during Friday before stalling in our region
over the weekend, then this front finally shifts offshore during
early next week. Another cold front looks to arrive later
Wednesday.

&&

.NEAR TERM /THROUGH FRIDAY/...
While the mid and upper-level ridge of high pressure responsible
for our heat wave this week has shifted offshore, today has
turned out to be the hottest day overall for most of our area.
Temperatures may not be quite as hot as some days earlier this
week across area farther northwest of I-95 and near the coast,
but it is more humid, with dewpoints well into the low 70s at
most locations. Some sites near the urban corridor including PHL
have already topped out near 97F, with another hour or two of
heating possible. The heat advisory remains in effect until 8
PM. With a bit more cloud cover and slightly lower temperatures
tomorrow, heat indicies may only near 100F right around
Philadelphia, so it is possible we will need another localized
heat advisory there for Friday, but will hold off for now since
it looks so marginal and localized.

With high pressure shifting offshore, southerly flow has
advected moisture including those higher dewpoints northward
into our region. Most model guidance was not aggressive enough
with this, and the resulting SB CAPE values near 4000 j/kg over
eastern Pennsylvania. This may have been why most guidance,
aside from perhaps the NAM NEST, did not indicate much in the
way of local thunderstorm development until later this
afternoon. However, discrete thunderstorms fired up around Berks
County to the Lehigh Valley and northward early this afternoon,
with some decent mid-level lapse rates and just enough shear
supporting severe thunderstorms that produced at least a few
instances of severe hail around quarter-sized. These storms have
lifted out for the most part. A Severe Thunderstorm Watch is in
effect in our area, mainly northwest of I-95, through 9 PM this
evening, as additional activity will move in, associated with
the main shortwave lifting northeastward from West Virginia
across Pennsylvania, and eventually toward northern NJ this
evening. With the increasing forcing, more widespread
thunderstorms merging into clusters and short lines will present
more of a damaging wind threat, though would not rule out some
localized reports of marginally severe hail still. Hi-res
modeling suggests the bulk of this activity will pass by between
4 PM and 9 PM from southwest to northeast. Some isolated and
probably weaker showers and thunderstorms may reach as far
southeast as I-95, but hi-res modeling along with more
convective inhibition & diminishing forcing closer to the
offshore ridge suggests that storms will struggle to make it too
far southeast. The shortwave will pass by late this evening,
with weakening showers lifting northeast into and north NJ and
New York, with a mainly dry night thereafter. Some patchy fog
may develop in areas where it rained, with another muggy night
ahead. Marine layer stratus and perhaps a bit of fog may push
onto the NJ shore toward morning as well.

For Friday, expect a mainly dry start to the day with showers
and thunderstorms developing toward midday or early afternoon as
another shortwave passes by in the south-southwest flow aloft,
while the main cold front slowly begins to approach our region
from west of the Appalachians. With more in the way of clouds
around and subsequently lower temperatures and low-level
heating, CAPE may be more limited than it is today, and the
shortwave does not look quite as strong as the one passing
through on Thursday. That said, overall the environment looks
very similar, and SPC has portions of our area in another Slight
Risk for Severe Thunderstorms, with the main threat being
damaging winds. Hi-res guidance seems to indicate storms will
develop locally possibly as early as midday, perhaps near or
just northwest of I-95, then gradually drift southeastward.
There may be more of a heavy rain and localized flooding threat
compared to today, particularly if any storms persist in urban
areas.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/...
Overall, the short term forecast remains on track. Conditions are
still expected to be a little cooler Saturday however still humid
with some showers and thunderstorms. As an upper- level trough
remains to our west, a weak cold front will be moving through our
region Friday night before stalling across our region into Saturday.
Convection from daytime Friday should tend to be on a downward trend
Friday night as the boundary layer cools and some areas become
worked over assuming some more organized convection occurs.

There may be a repeat performance on Saturday, although temperatures
will be a bit cooler and therefore the instability is forecast to be
lower. In addition the shear looks a little less, however ample
boundary layer heating should lead to steepening low-level lapse
rates once again. This would still support some convectively
generated strong surface wind gusts if strong enough convection
develops and especially if it organizes some. In addition, the
precipitable water values will be in the 1.5-2 inch range through
Saturday and therefore convection will produce locally heavy rain.
We can certainly use the rain as it has been dry, therefore the
overall flash flood risk may be more limited unless training of
convection occurs.

With the boundary beginning to move through the region and continued
cloud cover, high temperatures Saturday are forecast to be in the
mid to upper 80s for most locations.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
Summary...Cooling temperatures and gradually lowering dew points
along with continued chances for some showers and thunderstorms
(potentially drier Tuesday).

Synoptic Overview...The axis of an upper-level trough initially to
our west is forecast to work across our area during Monday and
gradually weaken. A much stronger upper-level trough is forecast to
move across the Great Lakes region and adjacent Canada early in the
week before gradually shifting into the Northeast. The timing of
this feature will depend on the amplitude of it and if it closes off
or not. At the surface, a weak cold front draped across our region
Sunday into Monday is forecast to finally get pushed offshore into
Tuesday. The next cold front looks to arrive later Wednesday with a
reinforcing front possible on Thursday.

For Sunday and Monday...The axis of a gradually weakening upper-
level trough is forecast to arrive later Sunday and then cross our
region Monday. This will keep a weak surface front draped nearly
north to south across our area. Given some cooling aloft and some
additional forcing for ascent with the trough aloft, some increase
in convective development should occur each day especially in the
afternoon and early evening hours. While there will cooler
temperatures it will remain humid, however the instability will be
held down some which should mostly lower the severe thunderstorm
risk. Locally very heavy rain will be probable due to high
precipitable water values and potentially slower storm motions,
however the region needs the rain and this could limit the flash
flooding threat.

For Tuesday through Thursday...The weak cold front should be
offshore to start Tuesday with some drier air working in. This may
provide a window for no convection chances, however the next upper-
level trough working across the Great Lakes and toward the Northeast
will drive a cold front into our area later Wednesday with another
front possibly developing in its wake for Thursday. The details with
this front and the extent of convection will depend on the amplitude
and timing of the trough and associated surface cold front. The
surface dew points should lower some more Tuesday but then may creep
upward some Wednesday ahead of the next cold front.

We will continue to monitor Hurricane Lee, however the exact track
is uncertain so far out in time and therefore so are any possible
direct impacts. Increasing swells and rip currents into our area
however do look to become more likely with time.

&&

.AVIATION /19Z THURSDAY THROUGH TUESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Through 00Z...Mainly VFR from I-95 southeastward. Scattered
showers and thunderstorms around KRDG and KABE, with some MVFR
and even brief IFR VSBY restrictions possible. Some isolated
thunderstorms may creep close to the I-95 vicinity toward 00Z.
Southerly wind 5 to 10 knots. Medium confidence.

Tonight...Scattered early evening showers and thunderstorms
northwest of I-95, but would not rule out passing shower or even
a rumble of thunder near the TAF sites between ILG,PHL,PNE and
TTN. There is some indication that more extensive marine stratus
may develop and push onshore later this evening, and
particularly after 06Z, but so far not seeing much evidence of
that coming to fruition over the ocean on visible satellite.
Thinking it is unlikely that the I-95 TAF sites end up with any
restrictions, but ACY and even MIV could see IFR ceilings and
perhaps even some fog. Variable wind 5 knots or less. Medium
confidence.

Friday...VFR initially along most of the I-95 corridor, but
outside of that expect some patchy low clouds and fog with IFR
and even LIFR conditions possible in some spots including RDG
and ACY. Showers and thunderstorms develop midday or early
afternoon, by 18Z, and may impact much of the area, but mainly
inland from the coast. Periods of MVFR ceilings and MVFR/IFR
VSBY possible in/near any thunderstorms, with locally gusty and
erratic winds possible.

Outlook...

Saturday and Sunday...Periods of sub-VFR conditions probable along
some showers and thunderstorms. Greatest chance for showers and
thunderstorms is each afternoon and evening. Southerly winds 5-10
knots each day decreasing to 5 knots or less each night. Low
confidence.

Monday...Periods of sub-VFR conditions probable especially with some
showers and thunderstorms. Southwest to westerly winds 5-10 knots,
becoming northwesterly around 5 knots or less Monday night. Low
confidence.

Tuesday...Mainly VFR. Sub-VFR conditions possible with chances for
showers. Northerly winds around 5 to 10 kts. Moderate
confidence.

&&

.MARINE...
Conditions will remain below Small Craft Advisory criteria
through Friday. Winds S-SE 10 to 15 knots for this afternoon,
diminishing near shore and over DE Bay tonight, but otherwise
persisting into Friday. Waves on our ocean waters are expected
to be 2 to 3 feet, with waves on Delaware Bay at 2 feet or less.

Outlook...

Saturday through Monday...No marine headlines expected. Main concern
will be for showers/storms, though best coverage looks to stay
inland away from the waters. Winds generally southerly 10-15 kts.
Seas 2 to 4 ft.

Tuesday...Small Craft Advisory conditions possible. Seas begin to
build and may begin to approach 5 feet on Tuesday. Otherwise,
northerly winds around 10 knots.

Rip Currents...

A southwest wind 5 to 10 MPH this morning is forecast to become
south 10 to 15 MPH this afternoon along the coasts of Delaware
and New Jersey. Breaking waves are expected to be 1 to 2 feet
with a long period (around 10 second) easterly swell. We will
continue to carry a LOW risk for rip currents today.

A southerly wind is expected to increase to 10 to 15 MPH on
Friday with breaking waves of 1 to 2 feet. A long period
easterly swell (around 11 or 12 seconds) is forecast. Being that
conditions will likely be similar to those of today, we will
keep the mention of a LOW risk of rip currents.

&&

.CLIMATE...
Near record breaking heat has occurred today. Records for our
climate sites are listed below, and record reports will be
issued this evening as warranted.

Record High Temperatures

                 Thu Sept 7
Site            Record/Year
Allentown (ABE)     91/2016
AC Airport (ACY)    94/1983
AC Marina (55N)     92/1983
Georgetown (GED)    94/1983
Mount Pocono (MPO)  85/2015
Philadelphia (PHL) 102/1881
Reading (RDG)       97/1983
Trenton (TTN)       94/1983
Wilmington (ILG)    95/1983

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Heat Advisory until 8 PM EDT this evening for PAZ070-071-102-
     104-106.
NJ...Heat Advisory until 8 PM EDT this evening for NJZ010-012-013-
     015>019.
DE...Heat Advisory until 8 PM EDT this evening for DEZ001.
MD...None.
MARINE...None.

&&

SYNOPSIS...Gorse
NEAR TERM...Dodd
SHORT TERM...Gorse
LONG TERM...Gorse
AVIATION...Dodd/Gorse/Iovino
MARINE...Gorse/Iovino
CLIMATE...
Hazardous weather outlook, Sep 7, 4:38 PM EDT, 1 hour 10 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0438 PM EDT Thu Sep 07 2023

DEZ001-082038-
New Castle-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...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.

DEZ002-082038-
Kent-
0438 PM EDT Thu Sep 07 2023

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.

DEZ003-082038-
Inland Sussex-
0438 PM EDT Thu Sep 07 2023

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.

DEZ004-082038-
Delaware Beaches-
0438 PM EDT Thu Sep 07 2023

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.

PAZ054-082038-
Carbon-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ055-082038-
Monroe-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ060-082038-
Berks-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ061-082038-
Lehigh-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ062-082038-
Northampton-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ070-082038-
Delaware-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ071-082038-
Philadelphia-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ101-082038-
Western Chester-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ102-082038-
Eastern Chester-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ103-082038-
Western Montgomery-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ104-082038-
Eastern Montgomery-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ105-082038-
Upper Bucks-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ106-082038-
Lower Bucks-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ001-082038-
Sussex-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ007-082038-
Warren-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ008-082038-
Morris-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ009-082038-
Hunterdon-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ010-082038-
Somerset-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ012-082038-
Middlesex-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ013-082038-
Western Monmouth-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for western Monmouth 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.

NJZ014-082038-
Eastern Monmouth-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for eastern Monmouth 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.

NJZ015-082038-
Mercer-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

Scattered severe thunderstorms are possible on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ016-082038-
Salem-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...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.

NJZ017-082038-
Gloucester-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...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.

NJZ018-082038-
Camden-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...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.

NJZ019-082038-
Northwestern Burlington-
0438 PM EDT Thu Sep 07 2023

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.

NJZ020-082038-
Ocean-
0438 PM EDT Thu Sep 07 2023

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.

NJZ021-082038-
Cumberland-
0438 PM EDT Thu Sep 07 2023

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.

NJZ022-082038-
Atlantic-
0438 PM EDT Thu Sep 07 2023

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.

NJZ023-082038-
Cape May-
0438 PM EDT Thu Sep 07 2023

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.

NJZ024-082038-
Atlantic Coastal Cape May-
0438 PM EDT Thu Sep 07 2023

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

NJZ025-082038-
Coastal Atlantic-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for coastal 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.

NJZ026-082038-
Coastal Ocean-
0438 PM EDT Thu Sep 07 2023

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.

NJZ027-082038-
Southeastern Burlington-
0438 PM EDT Thu Sep 07 2023

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.

MDZ012-082038-
Kent MD-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...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.

MDZ015-082038-
Queen Annes-
0438 PM EDT Thu Sep 07 2023

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.

MDZ019-082038-
Talbot-
0438 PM EDT Thu Sep 07 2023

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.

MDZ020-082038-
Caroline-
0438 PM EDT Thu Sep 07 2023

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.

ANZ430-082038-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

ANZ431-082038-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0438 PM EDT Thu Sep 07 2023

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

ANZ450-082038-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

ANZ451-082038-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

ANZ452-082038-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

ANZ453-082038-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

ANZ454-082038-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0438 PM EDT Thu Sep 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.

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.

ANZ455-082038-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0438 PM EDT Thu Sep 07 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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, Sep 7, 2:12 PM EDT, 3 hours 36 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
212 PM EDT Thu Sep 7 2023

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

0125 PM     Hail             Kutztown                40.52N 75.78W
09/07/2023  E1.25 inch       Berks              PA   Trained Spotter

            Trained Spotter reports 1.25 inch hail in
            Kutztown.

&&

DeSilva
Special weather statement, Sep 7, 3:17 PM EDT, 2 hours 31 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
317 PM EDT Thu Sep 7 2023

NJZ001-007-PAZ055-071945-
Sussex NJ-Warren NJ-Monroe PA-
317 PM EDT Thu Sep 7 2023

...A strong thunderstorm will impact portions of northwestern Sussex
and north central Warren Counties through 345 PM EDT...

At 317 PM EDT, Doppler radar was tracking a strong thunderstorm over
Flatbrookville, or 10 miles west of Newton, moving northeast at 25
mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Branchville, Flatbrookville, Millbrook, Five Points, Crandon Lakes
and Werry Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northwestern New Jersey...and northeastern Pennsylvania.

&&

LAT...LON 4114 7467 4098 7495 4111 7510 4113 7507
      4108 7503 4109 7500 4116 7490 4121 7486
      4123 7487 4126 7484
TIME...MOT...LOC 1917Z 228DEG 21KT 4110 7495

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

MPS
Local storm report, Sep 7, 3:36 PM EDT, 2 hours 12 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
336 PM EDT Thu Sep 7 2023

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

0219 PM     Tstm Wnd Dmg     Hamburg                 40.56N 75.98W
09/07/2023                   Berks              PA   911 Call Center

            Trees and Wires down in Hamburg. Time
            estimated from radar.

&&

Hoeflich
Local storm report, Sep 7, 4:10 PM EDT, 1 hour 38 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
410 PM EDT Thu Sep 7 2023

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

0242 PM     Hail             4 N Knowlton Twp        40.99N 75.09W
09/07/2023  E1.25 inch       Warren             NJ   Public

            Pictures sent in of quarter to half dollar
            sized hail. Time estimated from radar.

&&

Hoeflich
Special weather statement, Sep 7, 4:35 PM EDT, 1 hour 13 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
435 PM EDT Thu Sep 7 2023

PAZ060-061-072100-
Lehigh PA-Berks PA-
435 PM EDT Thu Sep 7 2023

...A strong thunderstorm will impact portions of northwestern Berks
County through 500 PM EDT...

At 435 PM EDT, Doppler radar was tracking a strong thunderstorm over
Friedensburg, or near Schuylkill Haven, moving northeast at 35 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Hamburg, Shoemakersville, Strausstown, Lenhartsville, Wanamakers and
Centerport.

This includes Interstate 78 in Pennsylvania between mile markers 14
and 42.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
eastern Pennsylvania.

&&

LAT...LON 4052 7625 4054 7617 4056 7613 4057 7608
      4058 7606 4057 7602 4063 7600 4069 7585
      4054 7575 4041 7628 4052 7633
TIME...MOT...LOC 2035Z 244DEG 32KT 4060 7626

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

MPS
Local storm report, Sep 7, 5:14 PM EDT, 34 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
514 PM EDT Thu Sep 7 2023

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

0500 PM     Hail             Shoemakersville         40.50N 75.97W
09/07/2023  E0.75 inch       Berks              PA   Public

            Report from mPING: Dime (0.75 in.).

&&

DeSilva

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 1:10 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh33 min
Sep 7, 1:38 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh19 min
Sep 7, 2:10 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton50 min
Sep 7, 2:13 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh47 min
Sep 7, 2:52 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton24 min
Sep 7, 4:35 PM EDTSpecial Weather StatementPHIBerks25 min
Sep 7, 4:47 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh43 min
Sep 7, 5:17 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Monroe43 min
Sep 7, 5:30 PM EDTSevere Thunderstorm WarningPHIBerks, Chester31 min
Sep 7, 5:34 PM EDTSevere Thunderstorm WarningPHICarbon, Lehigh, Monroe, Northampton41 min
Sep 7, 5:44 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Lehigh, Montgomery, Northampton46 min
Sep 7, 5:57 PM EDTSevere Thunderstorm WarningPHILehigh, Monroe, Northampton34 min
Sep 7, 6:06 PM EDTSpecial Weather StatementPHIBucks, Montgomery24 min
Sep 7, 6:18 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery42 min
Sep 7, 6:24 PM EDTSevere Thunderstorm WarningPHIBucks, Lehigh, Monroe, Northampton24 min
Sep 7, 7:00 PM EDTSpecial Weather StatementPHIMontgomery30 min
Sep 7, 7:36 PM EDTSevere Thunderstorm WarningPHIBerks, Chester39 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.