Alert archive / Delaware / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 355, NWS Philadelphia/Mount Holly

September 9, 2023Kent County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 9, 2023, 4:47 PM EDT for Kent County, Sussex County, Delaware. It was in force for 43 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
Sep 9, 2023, 4:47 PM EDT (20:47 UTC)
Expired
Sep 9, 2023, 5:30 PM EDT
In force
43 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Kent County, DE, Sussex County, DE

The radar

The Dover AFB radar (KDOX), 25 km from the middle of the area, began a volume at 20:50 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 9, 4:47 PM EDTTSTM WND DMG3 N Milford, DEWires down resulting in power outages. Time estimated via 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 0 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 nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.8 hours before the alert went out and 124 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, Wallops Is Stn, VA at 12:00Z on 2023-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1782 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, Wallops Is Stn, VA at 12:00Z on 2023-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
1782 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
820 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
12 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

348 
WUUS51 KPHI 092047
SVRPHI
DEC001-005-092130-
/O.NEW.KPHI.SV.W.0355.230909T2047Z-230909T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
447 PM EDT Sat Sep 9 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  North central Sussex County in southern Delaware...
  Central Kent County in central Delaware...

* Until 530 PM EDT.

* At 447 PM EDT, a severe thunderstorm was located near Bowers, or 11
  miles south of Dover, moving north at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Dover, Milford, Harrington, Camden, Cheswold, Bowers, Woodside,
  Viola, Rising Sun-Lebanon, Dover Base Housing, Dover Speedway,
  Rising Sun, Big Stone Beach, Wyoming, Felton, Frederica, Houston,
  Magnolia, Little Creek and Leipsic.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3890 7529 3890 7560 3927 7563 3927 7525
TIME...MOT...LOC 2047Z 179DEG 16KT 3900 7545 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLB
2 follow-up statements
497 
WWUS51 KPHI 092110
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
510 PM EDT Sat Sep 9 2023

DEC005-092119-
/O.CAN.KPHI.SV.W.0355.000000T0000Z-230909T2130Z/
Sussex DE-
510 PM EDT Sat Sep 9 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SUSSEX COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3896 7560 3927 7563 3927 7525 3895 7529
TIME...MOT...LOC 2109Z 179DEG 16KT 3910 7545 

$$

DEC001-092130-
/O.CON.KPHI.SV.W.0355.000000T0000Z-230909T2130Z/
Kent DE-
510 PM EDT Sat Sep 9 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR CENTRAL KENT COUNTY...

At 509 PM EDT, a severe thunderstorm was located over Dover Base
Housing, or near Dover, moving north at 20 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...
Dover, Camden, Cheswold, Bowers, Woodside, Viola, Rising Sun-Lebanon,
Rising Sun, Dover Base Housing, Big Stone Beach, Dover Speedway,
Wyoming, Felton, Frederica, Magnolia, Little Creek, Leipsic, Rodney
Village, Kent Acres and Riverview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3896 7560 3927 7563 3927 7525 3895 7529
TIME...MOT...LOC 2109Z 179DEG 16KT 3910 7545 

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

$$

MLB
358 
WWUS51 KPHI 092121
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
521 PM EDT Sat Sep 9 2023

DEC001-092131-
/O.EXP.KPHI.SV.W.0355.000000T0000Z-230909T2130Z/
Kent DE-
521 PM EDT Sat Sep 9 2023

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL KENT COUNTY WILL
EXPIRE AT 530 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

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 3896 7560 3927 7563 3927 7525 3895 7529
TIME...MOT...LOC 2121Z 179DEG 16KT 3915 7545 

$$

MLB

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 9, 4:38 PM EDT, 9 minutes earlier.

Area forecast discussion, Sep 9, 4:38 PM EDT, 9 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
438 PM EDT Sat Sep 9 2023

.SYNOPSIS...
A surface boundary will continue to linger over and near our region
through Monday. A stronger cold front approaches Tuesday and looks
to cross through the region Wednesday into Thursday. Surface high
pressure builds in thereafter and holds influence over the region
for the end of the week.

&&

.NEAR TERM /THROUGH SUNDAY/...
The weather pattern today remains the same as it has been for the
past couple of days. A strong ridge is off the East Coast, while a
trough over the Tennessee Valley continues to send shortwaves
northward generally up the Appalachians. A larger scale trough
around Hudson Bay extending southward into the Great Lakes will
finally help lift the aforementioned trough northeastward across the
Appalachians, while the offshore ridge gives way. All of this will
allow a stationary front that has been hanging up to the west of our
region to drift closer in on Sunday into Monday, with a couple weak
waves of surface low pressure traveling along it.

As we head through this afternoon, thunderstorms have been primarily
focused on the sea breeze toward the NJ shore, but have been
gradually building westward closer to I-95 with the aid of outflow
boundaries from the earlier storms. RAP analysis suggest 2500-3500
j/kg CAPE across much of our area. However, with all of the low
clouds this morning along with some cloud debris from earlier
convection, instability overall across our area, particularly north
and west of I-95, looks somewhat more limited than yesterday. We
have warmed well into the 80s across the Delaware Valley on
southeastward, and dewpoints outside of the Poconos for the most
part are in the low to mid 70s, with another very warm and muggy
day. For most spots though, this will be the first day we don't
eclipse 90 degree high temperatures. Additionally, wind shear is a
bit less today. While storms near the sea breeze, and particularly
one drifting across Middlesex County this afternoon, have been
locally severe, overall in most areas expect that storms will not be
as strong as yesterday, with somewhat lesser coverage as well,
especially back west across PA and northwest NJ.

Most model guidance suggests that thunderstorm activity will
diminish 6-9 PM with the loss of daytime heating. Low clouds and
areas of fog may settle in once again overnight. However, a more
prominent shortwave lifting north overnight into early Sunday
morning may result in showers and sub-severe embedded thunderstorms
drifting in from the west across eastern PA into northwest NJ
tonight. There is less consistency and agreement from the model
guidance how much, if any of that makes it toward the I-95 corridor
tonight, with areas south and east of there likely mainly rain-free
through early Sunday morning. Meanwhile some isolated showers and
storms may drift up across the Delmarva early Sunday as well.

Sunday is looking like a cooler and cloudier day overall, though
still warm and muggy with a very moist and unstable airmass in
place. With the aforementioned diffuse stationary front trying to
drift farther southeast into our area, along with a bit more
shortwave energy passing by throughout the day on Sunday, expect
overall forcing for showers and thunderstorms to be a bit greater
than past days, while instability will be lower, resulting in
perhaps more widespread precipitation but weaker storms. Highs may
only be in the upper 70s to low 80s for most of the area, but
dewpoints will still be generally in the low 70s. Enough wind shear
will exist still to support a 'marginal' risk for severe
thunderstorms, with the primary threat being damaging winds, but
would not rule out isolated large hail either. While the sea breeze
could still be active around midday, models suggest thunderstorms
will become more focused perhaps near or just northwest I-95, with a
threat for flash flooding where any storms persist. Expect showers
and t-storms will diminish in intensity and coverage once again as
we approach sunset.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/...
The short term will look to begin Sunday night with a stationary
surface boundary still lingering over the region. Guidance suggests
this boundary will continue to linger over the region through Monday
and possibly even into the time frame of Monday night. During the
same time frame however, stronger low pressure and associated fronts
will be developing west of region and moving eastward. These
features will look to force the surface boundary offshore of the
region possibly by the time frame of Tuesday morning. Following the
surface boundary movement offshore, the cold front to the west will
continue to approach our region through Tuesday.

This pattern supports continued stormy conditions across the region
through much of the short term. For Sunday night, likely chance PoPs
throughout the region to begin the period are included in the
forecast. PoPs decrease with time towards Monday morning as
shower/thunderstorm potential decreases. Widespread fog development
is possible in the second half of the period and should be expected
near 12z Monday. WPC maintains the I-95 corridor and areas
northwestwards of it outlooked for a SLIGHT/MARGINAL risk of
excessive rainfall for the period. The environment supports
showers/thunderstorms which will be capable of producing heavy
downpours which may lead to localized flooding.

For Monday, fog may linger for a short period after 12z. Chance PoPs
are included through the period as the surface stationary front
lingers. Will increase PoPs in the afternoon as shower/thunderstorm
potential increases due to access to daytime heating. For the
overnight period, fog may develop across the region once again as we
linger with moist conditions and airmass.

For Tuesday, cold front from the west will continue to approach the
region. Despite surface boundary offshore, shortwave energy may
linger which may again allow for the development of showers/thunderstorms.
Shower/thunderstorm potential will of course be greater in the
afternoon due to daytime heating driving convection; will
increase PoPs in the afternoon.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
A cold front will look to continue to approach the region Tuesday
night and be either on our doorstep or beginning to cross through
the region Wednesday morning. Though the cold front may slow down
some while crossing the region, it will look to be offshore by
Thursday morning. Surface high pressure will look to build in behind
the front and will look to hold influence over the region thereafter
through the end of the long term.

Likely PoPs are included for Tuesday night and Wednesday, will bring
them down through Wednesday night. No PoPs are included for Thursday
through the end of the long term. WPC has highlighted the I-95
corridor and areas northwestwards of it in a MARGINAL risk for
excessive rainfall Tuesday night into Wednesday. WPC maintains much
of the region in a SLIGHT/MARGINAL risk for excessive rainfall
Wednesday night into Thursday. Will continue to monitor the
environment during these periods for supportive conditions of
showers/thunderstorms capable of producing heavy downpours.

We continue to monitor the track forecast for Hurricane Lee. While
the hurricane is still forecast to make a northward turn with it
remaining well east of our area, there still is some uncertainty. As
of now, the main impacts look to be incoming large swells and the
development of dangerous rip currents into our area during next
week.

&&

.AVIATION /21Z SATURDAY THROUGH THURSDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

Today...Mainly VFR outside of scattered showers and thunderstorms.
The thunderstorms will bring locally heavy rainfall along with brief
MVFR/IFR conditions, along with gusty and erratic winds.
Thunderstorms will be in the vicinity of I-95 this afternoon, then
diminish this evening, while staying inland from the coast and
mainly southeast of ABE/RDG. Elsewhere winds  will be light east or
southeast. Medium confidence.

Tonight...Low clouds and patchy fog developing late tonight, mainly
06-12Z, with MVFR to even localized IFR conditions. Some occasional
showers and even a stray thunderstorm possible between RDG and ABE
overnight. Variable wind 5 knots or less. Medium confidence.

Sunday...MVFR to IFR ceilings and VSBY with patchy fog early in the
morning, improving to VFR mid or late morning but then showers and
thunderstorms developing once again around midday or early
afternoon, before diminishing toward evening. MVFR or IFR conditions
possible near thunderstorms. Light southeast winds otherwise outside
of any storms. Low confidence.

Outlook...

Sunday night...Sub-VFR. SHRA/VCTS likely for first half of the
period. Fog development in the latter half of the period may drive
sites down to MVFR/IFR visibilities. Light and variable winds. Low
confidence.

Monday...Generally VFR, though fog in the morning may cause sub-VFR
conditions to linger. SHRA/VCTS possible for the afternoon. W/SW
winds around 5 kts becoming NW by evening. Low confidence.

Monday night...Generally VFR before fog development in the latter
half of the period may drive sites down to MVFR/IFR visibilities.
Light and variable winds. Low confidence.

Tuesday...Generally VFR, though fog in the morning may cause sub-VFR
conditions to linger. SHRA/VCTS possible for the afternoon. S winds
around 5 to 10 kts. Low confidence.

Tuesday night...Sub-VFR with SHRA/VCTS. SE winds around 5 to 10 kts
becoming westerly by morning. Low confidence.

Wednesday...Sub-VFR with SHRA/VCTS. Westerly winds 5 to 10 kts. Low
confidence.

Thursday...VFR. NW winds 10 to 15 kts. Moderate confidence.

&&

.MARINE...
Conditions will remain below Small Craft Advisory criteria
through Sunday. Some isolated thunderstorms, mainly inland and
near Delaware Bay, will be possible each afternoon though. A
southerly wind 10 to 15 kt today will decrease to around 5 kt
later tonight, then increase to around 10 kt again but from the
east-southeast on Sunday. Waves on most of our ocean waters are
expected to be around 2 feet, with waves on Delaware Bay at 2
feet or less.

Outlook....

Sunday night...No headlines expected.

Monday...No headlines expected.

Monday night...SCA conditions possible; seas may grow to 5 feet in
some locations.

Tuesday...SCA conditions possible; seas may grow to 5 feet in some
locations.

Tuesday night...SCA conditions likely; seas 5-6 feet.

Wednesday...SCA conditions likely; seas 5-7 feet.

Thursday...SCA conditions likely; seas 5-7 feet.

Rip Currents...

A southerly wind 10 to 15 MPH is expected for today along the
coasts of Delaware and New Jersey. Breaking waves are forecast
to be around 1 foot with an underlying long period east to
southeast swell (around 10 seconds). There is a LOW risk of rip
currents for today.

A south to southeast wind around 10 MPH is anticipated for
Sunday with breaking waves around 1 foot. An underlying very
long period southeasterly swell (around 16 seconds) is forecast
to arrive. However, we will keep the mention of a LOW risk of
rip currents since the breaking waves should be relatively tame.

&&

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

&&

SYNOPSIS...Wunderlin
NEAR TERM...Dodd
SHORT TERM...Wunderlin
LONG TERM...Wunderlin
AVIATION...Dodd/Wunderlin
MARINE...Dodd/Wunderlin
Hazardous weather outlook, Sep 9, 4:26 PM EDT, 21 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0426 PM EDT Sat Sep 09 2023

DEZ001-102026-
New Castle-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

DEZ002-102026-
Kent-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

DEZ003-102026-
Inland Sussex-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

DEZ004-102026-
Delaware Beaches-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

PAZ054-102026-
Carbon-
0426 PM EDT Sat Sep 09 2023

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ055-102026-
Monroe-
0426 PM EDT Sat Sep 09 2023

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ060-102026-
Berks-
0426 PM EDT Sat Sep 09 2023

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ061-102026-
Lehigh-
0426 PM EDT Sat Sep 09 2023

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ062-102026-
Northampton-
0426 PM EDT Sat Sep 09 2023

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ070-102026-
Delaware-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ071-102026-
Philadelphia-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ101-102026-
Western Chester-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ102-102026-
Eastern Chester-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ103-102026-
Western Montgomery-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ104-102026-
Eastern Montgomery-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ105-102026-
Upper Bucks-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ106-102026-
Lower Bucks-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ001-102026-
Sussex-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ007-102026-
Warren-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ008-102026-
Morris-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ009-102026-
Hunterdon-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ010-102026-
Somerset-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

Several instances of flooding are possible, especially in urban and
poor-drainage areas and near vulnerable small creeks and streams.
Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ012-102026-
Middlesex-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ013-102026-
Western Monmouth-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ014-102026-
Eastern Monmouth-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ015-102026-
Mercer-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ016-102026-
Salem-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ017-102026-
Gloucester-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ018-102026-
Camden-
0426 PM EDT Sat Sep 09 2023

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

NJZ019-102026-
Northwestern Burlington-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ020-102026-
Ocean-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ021-102026-
Cumberland-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ022-102026-
Atlantic-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ023-102026-
Cape May-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ024-102026-
Atlantic Coastal Cape May-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ025-102026-
Coastal Atlantic-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ026-102026-
Coastal Ocean-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

NJZ027-102026-
Southeastern Burlington-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

MDZ012-102026-
Kent MD-
0426 PM EDT Sat Sep 09 2023

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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.

MDZ015-102026-
Queen Annes-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

MDZ019-102026-
Talbot-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

MDZ020-102026-
Caroline-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

ANZ430-102026-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

ANZ431-102026-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

ANZ450-102026-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

ANZ451-102026-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

ANZ452-102026-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

ANZ453-102026-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

ANZ454-102026-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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.

ANZ455-102026-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0426 PM EDT Sat Sep 09 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...Sunday through Friday.

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

Special weather statement, Sep 9, 4:15 PM EDT, 32 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
415 PM EDT Sat Sep 9 2023

PAZ106-092045-
Lower Bucks PA-
415 PM EDT Sat Sep 9 2023

...A strong thunderstorm will impact portions of south central Bucks
County through 445 PM EDT...

At 415 PM EDT, Doppler radar was tracking a strong thunderstorm over
Richboro, or 12 miles west of Trenton, moving north at 10 mph.

HAZARD...Wind gusts up to 40 mph and half inch 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...
Doylestown, Newtown, Langhorne, Ivyland, Richboro,
Feasterville-Trevose, Langhorn, Feasterville, Penndel, Langhorne
Manor, Hulmeville, Churchville, Village Shires and Newtown Grant.

This includes Pennsylvania Turnpike between mile markers 347 and 351.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

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

&&

LAT...LON 4014 7491 4013 7501 4015 7504 4031 7513
      4033 7492 4031 7489
TIME...MOT...LOC 2015Z 170DEG 11KT 4021 7499

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Staarmann
Local storm report, Sep 9, 4:16 PM EDT, 31 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
416 PM EDT Sat Sep 9 2023

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

0315 PM     Hail             Middlesex               40.58N 74.50W
09/09/2023  E0.50 inch       Middlesex          NJ   Cocorahs

            Mostly small hail, but some large stones up
            to half inch diameter.

&&

Staarmann
Local storm report, Sep 9, 4:18 PM EDT, 29 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
418 PM EDT Sat Sep 9 2023

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

0319 PM     Hail             1 SE New Brunswick      40.48N 74.43W
09/09/2023  E1.00 inch       Middlesex          NJ   Public

            Report from mPING: Quarter (1.00 in.).

0320 PM     Hail             New Brunswick           40.50N 74.44W
09/09/2023  M0.50 inch       Middlesex          NJ   Public

            One quarter to one half inch hail at Rutgers
            U.

0329 PM     Hail             2 S Middlesex           40.56N 74.50W
09/09/2023  E0.50 inch       Middlesex          NJ   Public

            Report from mPING: Half-inch (0.50 in.).

0412 PM     Hail             2 SW Morristown         40.78N 74.51W
09/09/2023  E0.50 inch       Morris             NJ   Public

            Report from mPING: Half-inch (0.50 in.).

&&

Staarmann
Special weather statement, Sep 9, 4:29 PM EDT, 18 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
429 PM EDT Sat Sep 9 2023

PAZ070-071-104-092100-
Eastern Montgomery PA-Delaware PA-Philadelphia PA-
429 PM EDT Sat Sep 9 2023

...A strong thunderstorm will impact portions of southeastern
Montgomery, northwestern Philadelphia and northeastern Delaware
Counties through 500 PM EDT...

At 429 PM EDT, Doppler radar was tracking a strong thunderstorm over
Chestnut Hill, or near Philadelphia, moving northwest at 10 mph.

HAZARD...Wind gusts up to 40 mph and half inch 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...
Philadelphia, Norristown, West Norriton, East Norriton, Conshohocken,
Ambler, Jenkintown, Narberth, Morris Park, Germantown, Bryn Mawr,
Plymouth Meeting, Roxborough, Chestnut Hill, King Of Prussia, Willow
Grove, Radnor Township, Horsham, Bridgeport and West Conshohocken.

This includes the following highways...
 Pennsylvania Turnpike between mile markers 326 and 342.
 Northeast Extension between mile markers 21 and 22.
 Interstate 76 in Pennsylvania between mile markers 327 and 342.
 Interstate 476 in Pennsylvania between mile markers 13 and 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

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

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
southeastern Pennsylvania.

&&

LAT...LON 4021 7514 4002 7510 3996 7527 4005 7538
      4006 7538 4007 7536 4006 7540 4008 7540
      4010 7544
TIME...MOT...LOC 2029Z 150DEG 8KT 4005 7522

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Staarmann
Local storm report, Sep 9, 4:34 PM EDT, 13 minutes before
Preliminary Local Storm Report
National Weather Service Mount Holly NJ
434 PM EDT Sat Sep 9 2023

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

0417 PM     Hail             Denville                40.86N 74.50W
09/09/2023  E1.00 inch       Morris             NJ   Public

            Quarter size hail in Denville. Time
            estimated via radar.

&&

MLB
Special weather statement, Sep 9, 4:42 PM EDT, 5 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
442 PM EDT Sat Sep 9 2023

DEZ002-003-092115-
Inland Sussex DE-Kent DE-
442 PM EDT Sat Sep 9 2023

...A strong thunderstorm will impact portions of north central Sussex
and Kent Counties through 515 PM EDT...

At 442 PM EDT, Doppler radar was tracking a strong thunderstorm near
Milford, or 13 miles south of Dover, moving north at 15 mph.

HAZARD...Wind gusts up to 50 mph and pea 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...
Dover, Milford, Harrington, Camden, Cheswold, Bowers, Woodside,
Viola, Rising Sun-Lebanon, Hazlettville, Dover Base Housing, Dover
Speedway, Rising Sun, Big Stone Beach, Wyoming, Felton, Frederica,
Houston, Kenton and Magnolia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

&&

LAT...LON 3888 7525 3889 7569 3925 7570 3925 7525
TIME...MOT...LOC 2042Z 180DEG 14KT 3897 7547

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

MLB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 9:48 PM EDTSevere Thunderstorm WarningPHINew Castle42 min
Sep 8, 10:17 PM EDTSevere Thunderstorm WarningPHINew Castle43 min
Sep 9, 3:46 PM EDTSpecial Weather StatementPHISussex29 min
Sep 9, 4:42 PM EDTSpecial Weather StatementPHIKent33 min
Sep 9, 5:29 PM EDTSpecial Weather StatementPHIKent31 min

Nearby

Severe Thunderstorm Warnings in Delaware, 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.