Alert archive / Pennsylvania / Areal Flood Advisories in 2021
Areal Flood Advisory 187, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Sep 23, 2021, 12:56 PM EDT for 5 counties in New Jersey; 7 counties in Pennsylvania. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 23, 2021, 12:56 PM EDT (16:56 UTC)
- Expired
- Sep 23, 2021, 4:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Camden County, NJ, Hunterdon County, NJ, Mercer County, NJ, Warren County, NJ, Bucks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 118 km from the middle of the area, began a volume at 16:54 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, 4.9 hours before the alert went out and 219 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
- 103 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 687 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 249 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
The text
As transmitted.
475
WGUS81 KPHI 231656
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
1256 PM EDT Thu Sep 23 2021
NJC005-007-019-021-041-PAC017-025-077-089-091-095-101-232000-
/O.NEW.KPHI.FA.Y.0187.210923T1656Z-210923T2000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Camden NJ-Hunterdon NJ-Mercer NJ-Warren NJ-Bucks PA-
Carbon PA-Lehigh PA-Monroe PA-Montgomery PA-Northampton PA-
Philadelphia PA-
1256 PM EDT Thu Sep 23 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
West Central Mercer County in central New Jersey...
Southwestern Hunterdon County in northwestern New Jersey...
Southwestern Warren County in northwestern New Jersey...
Northwestern Burlington County in southern New Jersey...
Northwestern Camden County in southern New Jersey...
East Central Lehigh County in eastern Pennsylvania...
Northampton County in eastern Pennsylvania...
Southeastern Carbon County in northeastern Pennsylvania...
Southwestern Monroe County in northeastern Pennsylvania...
Bucks County in southeastern Pennsylvania...
Eastern Montgomery County in southeastern Pennsylvania...
Philadelphia County in southeastern Pennsylvania...
* Until 400 PM EDT.
* At 1256 PM EDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly in the advisory area. Between 0.5 and 1 inch of rain has
fallen.
* Some locations that may experience flooding include...
Philadelphia, Allentown, Trenton, Camden, Easton, Bethlehem,
Bensalem, Ewing, Norristown, Lansdale, Forks, and East Norriton.
This includes the following highways...
Pennsylvania Turnpike between mile markers 333 and 359.
Interstate 95 in Pennsylvania between mile markers 20 and 40.
Interstate 78 in Pennsylvania between mile markers 64 and 76.
Interstate 78 in New Jersey between mile markers 0 and 8.
Interstate 76 in Pennsylvania between mile markers 334 and 349.
Interstate 295 in New Jersey between mile markers 75 and 76.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey near mile marker 4.
LAT...LON 4100 7575 4101 7573 4104 7574 4089 7520
4016 7475 3990 7518 4025 7540 4055 7538
4079 7557
$$
NCWhat forecasters said that day
The local office's own words before this areal flood advisory 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 areal flood advisory went out at Sep 23, 10:44 AM EDT, 2 hours 12 minutes earlier.
Area forecast discussion, Sep 23, 10:44 AM EDT, 2 hours 12 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
1044 AM EDT Thu Sep 23 2021
.SYNOPSIS...
A cold front will move into the region today and pushing to the
east through tonight. High pressure will build into the Mid-
Atlantic from the southwest for Friday and Saturday. A weak cold
front will cross the region later Saturday followed by a return
to high pressure for Sunday through Tuesday. Yet another cold
front will approach the region later Tuesday.
&&
.NEAR TERM /THROUGH TONIGHT/...
Mid-Morning Update...
Very little change to the forecast this morning. Made some
adjustments to hourly PoPs based on radar trends, but overall
thinking remains the same. While the front approached a little
faster than expected overnight, it is now slowing down as it
moves into the area, and it will take most of the day for
showers and thunderstorms to move through. Eastern areas will
even continue to see breaks of sun for another couple hours
before rain gradually overspreads. We have already seen some
impressive rainfall amounts over eastern Maryland as cells train
from south to north. As the front crawls eastward, the risk for
training cells and heavy rain will gradually shift east as
well. The potential remains for at least localized flash
flooding. Am not overly concerned about the severe threat due to
limited instability, but with a strong LLJ there remains a
threat for a convectively enhanced damaging wind gust, and given
strong low level SRH (shown nicely in 12z RAOBs from OKX and
WAL), still cannot entirely rule out an isolated tornado.
Previous discussion follows...
A few light showers have worked their way across the Delaware
Valley this morning, but a stronger line of showers and possibly
some embedded thunder is forming across the western Chesapeake
Bay and is expected to push eastward to the Eastern Shore later
this morning. Further to our west, a deeply occluded upper-
level low is centered over the Ohio Valley, with a rigorous dry
slot working northward between it and the associated
cold/occluded front to its east.
One concern today with this front continues to be the flash
flooding threat with the area of greatest concern being the
Lehigh Valley and Poconos where orographic enhancement is likely
to enhance heavy rainfall potential. A swath of PWAT values
exceeding two inches just to our west continues to move towards
our region this morning. A big factor at play will be exactly
how quickly the front moves east with a rather abrupt end to the
rainfall as the dry slot moves into the region from west to
east. Latest guidance has suggested this may push eastward a
little more quickly, which has resulted in a slight decrease in
rainfall totals, though the risk for localized amounts exceeding
three inches still remains across eastern Pennsylvania. A Flash
Flood Watch remains in effect for much of the region along and
west of the I-95 corridor.
Another item of concern is the severe threat. The impressive
synoptic-level winds with the system will likely be mixed down
to the surface with some of the stronger showers and
thunderstorms with 40 to 50-knot winds only a few thousand feet
above the surface with a very rigorous low level jet shooting
from south to north ahead of this front. With the more
southeasterly flow at the surface and southerly to south-
southwesterly winds in this jet, the threat for isolated
tornadoes continues to remain. Any updrafts that can tap into
this pre-existing low-level wind shear will easily be able to
rotate. 0-3km SRH values from 200 to 300 m2/s2 largely support
this threat. The more surface heating and sunshine we see early
today, the greater the threat is likely to be. With forecast ML
CAPEs around 1000 J/kg across the I-95 corridor, this should be
enough to get a few stronger cells going.
Otherwise, highs today will be seasonably warm in the upper 70s
to near 80 and lows dropping into the upper 50s tonight behind
the front. Warmer values near the coast with the front not
clearing the region as fast. Highs tomorrow will be a little
cooler in the low 70s.
&&
.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
The cold front pulls off to the east on Friday, allowing for
dry air to quickly push into our forecast area. With clearing
skies and plenty of sunshine, it will feel quite fall-like on
Friday as highs only rise into the 60s to lower 70s across the
region. With dew points in the 50s, it will feel much more
comfortable than it has in recent days.
With the skies remaining clear into Friday night and winds
dropping off, we should radiate fairly well. Overnight lows will
drop into the mid 40s to lower 50s across the area.
Saturday will feature high pressure building cresting overhead.
A few clouds around the region during the day but otherwise
mostly sunny skies are expected. Highs will be similar to
Friday, through with some slight warming aloft in the southwest
flow it should be a couple of degrees warmer. A weak cold front
will approach from the west as a deep upper trough pushes
towards the area, moving through later Saturday night. While
there will be quite a bit of energy available aloft, the front
itself is moisture starved and we are not expecting any showers
to develop as it moves through and makes its way offshore
Saturday night.
&&
.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
Surface high pressure will build across the region for Sunday
through Tuesday, keeping the region dry. Aloft, a trough will
dig down and cross the region Sunday into Monday. While there is
no moisture associated with this trough passage, there should
be some cooler temperatures which will keep the highs on Sunday
slightly below normal and in the 60s to lower 70s through much
of the region. As we go through Monday and Tuesday, the air mass
will moderate and warm a few degrees each day.
A weak cold front will approach the region on Tuesday, passing
through Tuesday night. Some rain showers may accompany the front
and we can't rule out a few rumbles of thunder.
Ridging aloft along with surface high pressure will once again
move over the region for midweek with warmer and drier
conditions expected.
&&
.AVIATION /15Z THURSDAY THROUGH MONDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.
Today... A mix of MVFR with some remaining pockets of VFR
should continue through the morning as a frontal system and
associated rainfall slowly approaches. All terminals should drop
to MVFR by this afternoon, with widespread MVFR and localized
IFR through this evening with rounds of showers and
thunderstorms, heavy at times. Timing of the cold front has sped
up slightly, thus southeasterly winds from 15 to 20 knots
through 20Z with gusts up to 30 knots will begin to quickly
shift westerly as the front passes through the region. The front
looks to pass slowly across the region from 20Z at RDG to 22Z
at the Philly terminals to 06Z at ACY. Moderate to high
confidence in overall trend, lower confidence in exact timing of
wind shift and categorical shifts.
Tonight...A gradual improvement from lingering MVFR to VFR
through the early morning. West-southwesterly winds shifting to
west- northwest from 5 to 10 knots. Moderate confidence.
Friday...VFR with westerly winds from 5 to 10 knots. A few
showers may linger along the coast in the morning hours bringing
probable MVFR restrictions through 16Z. High confidence.
Outlook...
Friday night through Sunday...Mainly VFR expected. West to
northwest winds around 10 knots, increasing to 10 to 15 knots on
Sunday. High confidence.
Monday...Mainly VFR expected. West to southwest wind around 10
to 15 knots. High confidence.
&&
.MARINE...
Today...Southeasterly winds from 15 to 20 knots with gusts to
30 knots. Seas building to 4 to 7 feet with a few 8-foot
breaking waves possible. An SCA remains in effect for the
Atlantic coastal waters through the day. A Gale Warning remains
in effect for the Delaware Bay through 6 pm as the funneling of
southeasterly flow up the Bay allows for some gusts near to
above 35 kt, the likes of which have already been observed.
Tonight...Winds turning westerly and dropping to 10 to 15 knots
but seas will linger from 4 to 6 feet through the night, thus
the SCA remains in effect through the overnight for the Atlantic
coastal waters.
Friday...Northwesterly winds from 5 to 10 knots with gusts to
15 knots. Seas remaining elevated through 4 pm from 3 to 5 feet.
Outlook...
Friday night through Monday...No marine headlines are
anticipated. Westerly winds around 10 to 15 knots, with some
gusts around 20 knots on Sunday. Seas generally around 2 to 4
feet.
Rip currents...
We have forecast a HIGH risk of dangerous rip currents for
today for both NJ and DE beaches, as winds become a little
stronger with an increasing swell.
A HIGH risk will continue for the NJ beaches on Friday with a
MODERATE risk expected at the DE beaches.
A Rip Current Statement is in effect for the DE beaches through
tonight and for the NJ beaches through Friday evening.
&&
.TIDES/COASTAL FLOODING...
Strong southerly flow in advance of the system moving through
the region resulted in elevated water levels on the eastern
shore of Chesapeake Bay, where some minor tidal flooding has
occurred. A Coastal Flood Advisory remains in effect for Kent
County until noon.
Water levels on the far upper Delaware Bay and on the tidal
Delaware River are also elevated due to the strong southeast
wind. We have issued a Coastal Flood Advisory for those areas
for this afternoon.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch through late tonight for PAZ070-071-102-104-
106.
Coastal Flood Advisory from 2 PM this afternoon to 7 PM EDT
this evening for PAZ070-071-106.
Flash Flood Watch through late tonight for PAZ054-055-060>062-
101-103-105.
NJ...Flash Flood Watch through late tonight for NJZ001-007>010-012-
015.
High Rip Current Risk through Friday evening for NJZ014-
024>026.
Coastal Flood Advisory until 3 PM EDT this afternoon for
NJZ016.
Coastal Flood Advisory from 2 PM this afternoon to 7 PM EDT
this evening for NJZ017>019.
DE...High Rip Current Risk until 8 PM EDT this evening for DEZ004.
Flash Flood Watch through late tonight for DEZ001.
Coastal Flood Advisory until 3 PM EDT this afternoon for
DEZ001.
MD...Coastal Flood Advisory until noon EDT today for MDZ012.
MARINE...Small Craft Advisory until 4 PM EDT Friday for ANZ450>455.
Gale Warning until 6 PM EDT this evening for ANZ430-431.
&&
Synopsis...Meola
Near Term...Davis/O'Brien
Short Term...Meola
Long Term...Meola
Aviation...Davis/Meola/O'Brien
Marine...Davis/Meola
Tides/Coastal Flooding...WFO PHIHazardous weather outlook, Sep 23, 12:16 PM EDT, 40 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 1216 PM EDT Thu Sep 23 2021 DEZ001-241616- New Castle- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for New Castle County in Delaware. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Coastal Flood Advisory. .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. DEZ002-241616- Kent- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Kent County in Delaware. .DAY ONE...Through tonight. Minor coastal flooding is 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. DEZ003-241616- Inland Sussex- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for inland portions of Sussex County in Delaware. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. DEZ004-241616- Delaware Beaches- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Sussex County in Delaware. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. There is a moderate risk of rip currents 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. PAZ054-241616- Carbon- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Carbon County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ055-241616- Monroe- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Monroe County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ060-241616- Berks- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Berks County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ061-241616- Lehigh- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Lehigh County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ062-241616- Northampton- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Northampton County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ070-241616- Delaware- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Delaware County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Coastal Flood Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ071-241616- Philadelphia- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Philadelphia County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Coastal Flood Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ101-241616- Western Chester- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for western Chester County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ102-241616- Eastern Chester- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for eastern Chester County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ103-241616- Western Montgomery- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for western Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ104-241616- Eastern Montgomery- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for eastern Montgomery County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ105-241616- Upper Bucks- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for upper Bucks County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. PAZ106-241616- Lower Bucks- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for lower Bucks County in Pennsylvania. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Coastal Flood Advisory. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ001-241616- Sussex- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Sussex County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ007-241616- Warren- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Warren County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ008-241616- Morris- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Morris County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ009-241616- Hunterdon- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Hunterdon County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ010-241616- Somerset- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Somerset County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ012-241616- Middlesex- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Middlesex County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ013-241616- Western Monmouth- 1216 PM EDT Thu Sep 23 2021 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. NJZ014-241616- Eastern Monmouth- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for eastern Monmouth County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ015-241616- Mercer- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Mercer County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ016-241616- Salem- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Salem County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. .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. NJZ017-241616- Gloucester- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Gloucester County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. .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. NJZ018-241616- Camden- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Camden County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. .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. NJZ019-241616- Northwestern Burlington- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for northwestern Burlington County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Coastal Flood Advisory. .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. NJZ020-241616- Ocean- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for inland portions of Ocean County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ021-241616- Cumberland- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Cumberland County in New Jersey. .DAY ONE...Through tonight. Minor coastal flooding is 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. NJZ022-241616- Atlantic- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for inland portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ023-241616- Cape May- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Cape May County excluding the Atlantic coast in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ024-241616- Atlantic Coastal Cape May- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for the Atlantic coastal portions of Cape May County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ025-241616- Coastal Atlantic- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for coastal portions of Atlantic County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ026-241616- Coastal Ocean- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for coastal portions of Ocean County in New Jersey. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Rip Current Risk Statement. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. NJZ027-241616- Southeastern Burlington- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for southeastern Burlington County in New Jersey. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ012-241616- Kent MD- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Kent County in Maryland. .DAY ONE...Through tonight. Minor coastal flooding is possible. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ015-241616- Queen Annes- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Queen Annes County in Maryland. .DAY ONE...Through tonight. Minor coastal flooding is 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. MDZ019-241616- Talbot- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Talbot County in Maryland. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. MDZ020-241616- Caroline- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for Caroline County in Maryland. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ430-241616- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for upper Delaware Bay. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .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. ANZ431-241616- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for lower Delaware Bay. .DAY ONE...Through tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .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. ANZ450-241616- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Monmouth County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ451-241616- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Ocean County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ452-241616- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Atlantic County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ453-241616- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Cape May County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures. ANZ454-241616- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to the mouth of Delaware Bay out 20 nm. .DAY ONE...Through tonight. Gale-force winds and/or very rough seas are forecast. 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. ANZ455-241616- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 1216 PM EDT Thu Sep 23 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Sussex County out 20 nm. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
In the hours before
Local storm report, Sep 23, 12:46 PM EDT, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1246 PM EDT THU SEP 23 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1101 AM FLASH FLOOD 3 NNW LANGFORD 39.23N 76.17W
09/23/2021 KENT MD DEPT OF HIGHWAYS
STATE HIGHWAY 298 CLOSED FROM FLASH
FLOODING. TIME BASED ON DISPATCH REPORT.
&&
CMSLocal storm report, Sep 23, 12:49 PM EDT, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1249 PM EDT THU SEP 23 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1238 PM TSTM WND DMG 1 NNW PLYMOUTH MEETING 40.11N 75.28W
09/23/2021 MONTGOMERY PA PUBLIC
MPING REPORT OF TREE DAMAGE AT THIS
LOCATION. TIME CONFIRMED BY RADAR.
&&
CMSLocal storm report, Sep 23, 12:51 PM EDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1251 PM EDT THU SEP 23 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1236 PM FLASH FLOOD 1 N COATESVILLE 40.00N 75.82W
09/23/2021 CHESTER PA COUNTY OFFICIAL
WATER RESCUE NEAR THE INTERSECTION OF MANOR
ROAD AND BUTTERWORTH ROAD. TIME BASED ON
DISPATCH REPORT.
&&
CMSLocal storm report, Sep 23, 12:54 PM EDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1254 PM EDT THU SEP 23 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1231 PM TSTM WND DMG 1 ENE BERWYN 40.05N 75.43W
09/23/2021 CHESTER PA COUNTY OFFICIAL
DOWNED TREE BLOCKING CONESTOGA ROAD. TIME
ESTIMATED FROM RADAR.
&&
CMSSpecial weather statement, Sep 23, 12:54 PM EDT, 2 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
1254 PM EDT Thu Sep 23 2021
NJZ016>018-021-PAZ070-071-104-231745-
Salem NJ-Cumberland NJ-Camden NJ-Gloucester NJ-Eastern Montgomery PA-
Delaware PA-Philadelphia PA-
1254 PM EDT Thu Sep 23 2021
...Strong thunderstorms will impact portions of western Cumberland,
northeastern Salem, northwestern Camden, Gloucester, southeastern
Montgomery, western Philadelphia and southeastern Delaware Counties
through 145 PM EDT...
At 1253 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Gibbstown to near Cedarville. Movement was
north at 35 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Philadelphia, Camden, Vineland, Millville, Bridgeton, Gloucester
City, Deptford, West Deptford, Glassboro, Bellmawr, Yeadon, Woodbury,
Pitman, Clayton, Folcroft, Paulsboro, Jenkintown, Magnolia, Westville
and Woodstown.
This includes the following highways...
New Jersey Turnpike between exits 2 and 3.
Pennsylvania Turnpike near mile marker 343.
Interstate 95 in Pennsylvania between mile markers 9 and 26.
Interstate 76 in Pennsylvania between mile markers 340 and 351.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 295 in New Jersey between mile markers 10 and 29.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
Atlantic City Expressway between mile markers 42 and 44.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3923 7522 3928 7529 3973 7539 4017 7512
3965 7500
TIME...MOT...LOC 1653Z 198DEG 31KT 3979 7530 3932 7525
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
StaarmannLocal storm report, Sep 23, 12:56 PM EDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1256 PM EDT THU SEP 23 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1225 PM TSTM WND DMG 1 SE PAOLI 40.03N 75.47W
09/23/2021 CHESTER PA COUNTY OFFICIAL
DOWNED TREE ON DARBY PAOLI ROAD. TIME
ESTIMATED FROM RADAR.
&&
CMSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 22, 8:43 PM EDT | Gale Warning | PHI | 18 hr | |
| Sep 23, 9:12 AM EDT | Coastal Flood Advisory | PHI | Burlington, Camden, Gloucester | 10 hr |
| Sep 23, 11:33 AM EDT | Areal Flood Advisory | PHI | Cumberland, Gloucester, Salem | 3 hr |
| Sep 23, 11:57 AM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 3 hr |
| Sep 23, 12:12 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 48 min |
| Sep 23, 12:54 PM EDT | Special Weather Statement | PHI | Gloucester | 51 min |
| Sep 23, 1:13 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 47 min |
| Sep 23, 1:42 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Sep 23, 1:58 PM EDT | Special Weather Statement | PHI | Camden, Hunterdon | 32 min |
| Sep 23, 2:37 PM EDT | Areal Flood Advisory | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 3 more | 3 hr |
| Sep 23, 2:47 PM EDT | Special Weather Statement | PHI | Hunterdon, Mercer | 28 min |
| Sep 23, 2:52 PM EDT | Special Weather Statement | PHI | Camden | 23 min |
| Sep 23, 3:13 PM EDT | Special Weather Statement | PHI | Mercer, Somerset | 32 min |
| Sep 23, 3:16 PM EDT | Special Weather Statement | PHI | Burlington | 29 min |
| Sep 23, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 52 min |
| Sep 23, 3:26 PM EDT | Flash Flood Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Morris, Somerset | 2 hr |
| Sep 23, 3:50 PM EDT | Special Weather Statement | PHI | Burlington | 25 min |
| Sep 23, 4:21 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth, Morris, Ocean, Somerset, Sussex | 15 min |
| Sep 23, 4:36 PM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth, Morris, Somerset, Sussex | 3 hr |
| Sep 23, 5:00 PM EDT | Special Weather Statement | PHI | Monmouth | 30 min |
| Sep 23, 10:52 AM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
| Sep 23, 11:40 AM EDT | Areal Flood Advisory | PHI | Berks, Bucks, Carbon, Lehigh, Montgomery, Northampton | 3 hr |
| Sep 23, 12:28 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Sep 23, 12:57 PM EDT | Special Weather Statement | PHI | Bucks | 33 min |
| Sep 23, 1:48 PM EDT | River Flood Warning | PHI | Chester | 5 hr |
| Sep 23, 4:26 PM EDT | Areal Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 80 min |
| Sep 23, 7:18 PM EDT | Areal Flood Warning | PHI | Berks, Montgomery | 36 min |
Nearby
Areal Flood Advisories in Pennsylvania, 2021Areal Flood Advisories in New Jersey, 2021Every areal flood advisory in 2021
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.