Alert archive / Pennsylvania / Special Weather Statements in 2023
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Sep 7, 2023, 7:00 PM EDT for Montgomery County, Pennsylvania. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 7, 2023, 7:00 PM EDT (23:00 UTC)
- Expired
- Sep 7, 2023, 7:30 PM EDT
- In force
- 30 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.75 in
- Wind
- 40
County Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 89 km from the middle of the area, began a volume at 23:01 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 11.0 hours before the alert went out and 223 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.
- Mixed-layer CAPE
- 2039 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1218 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Sep 7, 4:18 PM EDT, 2 hours 42 minutes earlier.
Area forecast discussion, Sep 7, 4:18 PM EDT, 2 hours 42 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, 2 hours 22 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, 6:39 PM EDT, 21 minutes before
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</html>Special weather statement, Sep 7, 7:00 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
700 PM EDT Thu Sep 7 2023
PAZ103-104-072330-
Eastern Montgomery PA-Western Montgomery PA-
700 PM EDT Thu Sep 7 2023
...A strong thunderstorm will impact portions of central Montgomery
County through 730 PM EDT...
At 659 PM EDT, Doppler radar was tracking a strong thunderstorm over
Collegeville, or 20 miles northeast of West Chester, 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...
Norristown, Lansdale, West Norriton, East Norriton, Hatboro,
Souderton, Ambler, Collegeville, Trappe, Hatfield, Schwenksville,
Spring Mount, Willow Grove, King Of Prussia, Horsham, Skippack,
Telford, North Wales, Harleysville and Evansburg.
This includes Northeast Extension between mile markers 22 and 38.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southeastern Pennsylvania.
&&
LAT...LON 4037 7540 4017 7509 4010 7544 4025 7556
TIME...MOT...LOC 2259Z 239DEG 21KT 4022 7542
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 1:52 PM EDT | Special Weather Statement | PHI | Warren | 23 min |
| Sep 7, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 50 min |
| Sep 7, 2:52 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 24 min |
| Sep 7, 3:17 PM EDT | Special Weather Statement | PHI | Sussex | 28 min |
| Sep 7, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 34 min |
| Sep 7, 6:06 PM EDT | Special Weather Statement | PHI | Hunterdon, Warren | 24 min |
| Sep 7, 6:21 PM EDT | Special Weather Statement | PHI | Warren | 24 min |
| Sep 7, 6:30 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 45 min |
| Sep 7, 7:05 PM EDT | Special Weather Statement | PHI | Morris | 25 min |
| Sep 7, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 34 min |
| Sep 7, 1:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 33 min |
| Sep 7, 1:38 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 19 min |
| Sep 7, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 47 min |
| Sep 7, 4:35 PM EDT | Special Weather Statement | PHI | Berks | 25 min |
| Sep 7, 4:47 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh | 43 min |
| Sep 7, 5:17 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe | 43 min |
| Sep 7, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 31 min |
| Sep 7, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 41 min |
| Sep 7, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Lehigh, Montgomery, Northampton | 46 min |
| Sep 7, 5:48 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 42 min |
| Sep 7, 6:18 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 42 min |
| Sep 7, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Monroe, Northampton | 24 min |
| Sep 7, 7:36 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 39 min |
| Sep 7, 7:55 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 26 min |
Nearby
Special Weather Statements in Pennsylvania, 2023Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.