Alert archive / Pennsylvania / Areal Flood Advisories in 2021
Areal Flood Advisory 171, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Sep 8, 2021, 9:16 PM EDT for Lehigh County, Northampton County, Pennsylvania; Warren County, New Jersey. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 8, 2021, 9:16 PM EDT (01:16 UTC)
- Expired
- Sep 9, 2021, 12:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Warren County, NJ, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 125 km from the middle of the area, began a volume at 01:19 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 00:00Z, 1.3 hours before the alert went out and 204 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
- 619 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 807 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.4
The text
As transmitted.
301
WGUS81 KPHI 090116
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
916 PM EDT Wed Sep 8 2021
NJC041-PAC077-095-090415-
/O.NEW.KPHI.FA.Y.0171.210909T0116Z-210909T0415Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Warren NJ-Lehigh PA-Northampton PA-
916 PM EDT Wed Sep 8 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Northern Warren County in northwestern New Jersey...
Lehigh County in eastern Pennsylvania...
Northampton County in eastern Pennsylvania...
* Until 1215 AM EDT.
* At 916 PM EDT, Doppler radar indicated heavy rain due to
thunderstorms. Minor flooding is ongoing or expected to begin
shortly across portions of the advisory area. Between 0.5 and 1
inch of rain has fallen. Another 1 inch is possible.
* Some locations that may experience flooding include...
Allentown, Easton, Bethlehem, Forks, Northampton, Wilson,
Blairstown, Nazareth, Bangor, Slatington, Pen Argyl, and Wind Gap.
This includes the following highways...
Interstate 78 in Pennsylvania between mile markers 45 and 58.
Interstate 80 in New Jersey between mile markers 1 and 18.
Northeast Extension between mile markers 54 and 71.
LAT...LON 4086 7529 4093 7521 4096 7513 4099 7513
4109 7497 4094 7480 4069 7521 4050 7562
4068 7589 4077 7569
$$
KruzdloWhat 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 8, 6:18 PM EDT, 2 hours 58 minutes earlier.
Area forecast discussion, Sep 8, 6:18 PM EDT, 2 hours 58 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
618 PM EDT Wed Sep 8 2021
.SYNOPSIS...
A cold front will cross the region tonight into Thursday
before stalling nearby. A wave will move along the front on
Thursday, pulling it away from the region Thursday night.
High pressure will build into the region on Friday, moving offshore
over the weekend. Another frontal system may cross the region Monday
or Tuesday.
&&
.NEAR TERM /THROUGH THURSDAY NIGHT/...
630 update: Added New Castle County to the Flash Flood Watch as
there are some indications the convective line approaching from
the west may begin to slow in that general area as a frontal
wave deepens to our South. Consequently even though the FFG is
higher than further points northwest, we could have enough
training of convective cells to generate a flash flood threat
(particularly in more urban portions of the county).
Previous discussion:
Conditions remain on the quiet side as of early this afternoon,
but that is expected to change later this evening as a cold
front impinges upon the region bringing a line of showers and
thunderstorms to the region. These will be associated with the
cold front, however, with Hurricane Larry staying well offshore
over the open Atlantic.
The main concerns with this line of convection continues to be the
threat for tornadoes and flash flooding, the latter being due in
part to antecedent conditions from the remnants of Ida. The good
news is that the timing of the front has continued to slow to a
degree, pushing through our area more in the overnight hours than
daylight hours, with an associated slight stabilization of the
boundary layer occurring.
Synoptically, a deepening mid-level shortwave trough axis across
Ontario will continue to push eastward into Quebec with a surface
low driving eastward in a similar manner. A trailing cold front
across the Ohio Valley continues to scoop up moisture from the Gulf
of Mexico where Mindy could be on its way to forming. This front
will sweep through the region tonight, with drier weather returning
for tomorrow as northwesterly flow overtakes the region.
With forecast helicity values nearing 200 m2/s2, the tornado threat
is nothing to dismiss tonight, though the slowing of the front
pushes it through with slightly lower forecast values than a few
forecast cycles a go occuring so some of the latest hi-res guidance.
The pre-frontal trough has also been a bit weaker today, which has
tended to lower the threat for a prefrontal area of thunderstorms.
Some of the guidance has a little hint of these occuring in the next
few hours, but the current cu field is not all that impressive. Of
other note, the DCAPE is quite impressive with over 1000 J/kg across
our region, which would be supportive of a few microbursts. This is
also supported by a weak dry layer between 800 and 600 mb.
The details of the flash flood potential can be found the the
Hydrology section near the end of this AFD. PWats will rise to
around 1.5" to close to 2" closer to the coast ahead of the
aforementioned cold front. This means that any stronger storms that
form will be capable of producing locally heavy rain (1 to 2+ inches
of rain in a brief period of time). Generally speaking, widespread
rainfall totals of around 0.5-1" is expected in the watch area with
the potential for localized amounts up to 2". The general placement
of the flash flood concern and associated watch is due in part to
this week's rainfall being nearly 600% of normal near and northwest
of the Fall Line.
For Thursday, the front may linger a bit along the coast with
lingering showers into the early morning. Lingering clouds with the
front stalling to our southeast will keep things overcast,
especially closer to the coast. Cooler highs in the mid to upper 70s
and northwesterly winds from 5 to 10 mph.
&&
.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
High pressure starts to build in from the west for Friday
before moving overhead on Saturday. With the high dominating the
region, we should remain dry with below to slightly below
normal temperatures.
Daytime highs will be in the low to mid 70s on Friday with slight
increases into the mid to upper 70s on Saturday. Areas across the
southern Poconos will be even cooler with highs topping out in the
60s both days.
Overnight lows Friday night will be cool with light winds and clear
skies across the region. Temperatures will dip down into the 50s,
with some 40s possible across the southern Poconos. The air mass
should modify some for Saturday night and overnight lows will be in
the upper 50s to lower 60s.
&&
.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
Quiet weather will continue through Sunday as the high shifts
further offshore. With a return flow around the high, we should see
additional warming and high temperatures will rise back into the
lower 80s through much of the forecast area. Some slight increase in
cloud cover may occur overnight but we should still radiate fairly
well. The southwest flow will keep overnight temperatures warmer and
mainly in the 60s.
As we head towards Monday, we start to see some differences in the
guidance. What we see consistently on the guidance is a cold front
approaching the region from the west but the timing and strength of
the front differs, leaving us with an unsettled forecast. The
boundary may start to move in to our area Monday with the potential
for some showers or thunderstorms across our northernmost zones. The
boundary may stall over or near the area and with several shortwaves
crossing the region there will be the potential for showers and
thunderstorms to continue through midweek. Best chances at this time
still appear to be across our northern and western areas so we
continue to keep POPs in those areas. Strong southwest flow at 850mb
will bring in much warmer air and daytime temps should have no
problem rising into the mid to upper 80s through the midweek period.
&&
.AVIATION /22Z WEDNESDAY THROUGH MONDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
Today...VFR with a gradual decline to MVFR conditions as showers and
thunderstorms move into the region from west to east. Mostly VFR
through 23Z with MVFR conditions developing especially after 00Z.
Southwest winds from 10 to 15 knots. A few gusts to 20 knots at
times. Moderate confidence.
Tonight...MVFR with some brief IFR at times as a line of showers and
embedded thunderstorms move through the region, especially at ABE
and RDG. Winds turning west-northwesterly from 5 to 10 knots.
Moderate confidence.
Thursday...Sub-VFR conditions possible in the early morning will
clear to VFR as any lingering showers move offshore. Westerly winds
from 5 to 10 knots with a few gusts to 15 knots possible. High
confidence.
Outlook...
Friday...VFR with northwesterly winds from 10 to 15 knots and gusts
to 20 knots with a few gusts to 25 knots possible. High confidence.
Saturday through Sunday...Mainly VFR. Southwest winds 5 to 10
kt, with a few gusts 15 to 20 knots mainly on Sunday. High
confidence.
Monday...Mainly VFR. Slight chance for showers near KABE during the
afternoon/evening. Westerly winds 5 to 10 knots. Moderate confidence.
&&
.MARINE...
SCA conditions on the coastal waters through tonight with southerly
winds from 15 to 20 knots and gusts near 25 knots. Winds turning
southwesterly to westerly overnight. Seas from 4 to 6 feet.
SCA conditions continue through Thursday night with northwesterly
winds from 5 to 10 knots and gusts to 15 knots. Seas from 4 to 6
feet.
Outlook...
Friday through Saturday...Seas will remain between 4 and
8 feet through Friday night, gradually subsiding on Saturday and
falling below 5 feet Saturday afternoon. The small craft advisory
will likely be needed through Saturday for the ocean waters.
Saturday night through Monday...Mainly sub-SCA conditions
expected. Southwest winds may approach advisory thresholds on
Sunday. Seas will mainly stay between 3 to 4 feet but may approach 5
feet on the outer waters on Sunday.
Rip Currents...
Long period swells emanating from Hurricane Larry will create a
HIGH risk for the development of dangerous rip currents on
Wednesday. The elevated risk of rip currents will likely
continue on Thursday and Friday, and perhaps into Saturday.
&&
.HYDROLOGY...
Thunderstorms, potentially in a couple rounds, are forecast this
evening. Flash flood guidance remains very low (around 0.5" in 1
hour on average) across much of the area where we have a Flash Flood
Watch in effect. This watch is in effect from 4 PM this afternoon
through 2 AM Thursday. This watch serves mainly to highlight the
potential for rapid runoff of any heavy rain that falls given the
very saturated soils from recent heavy rainfall events across the
area. While this system will be fairly progressive, it will not take
much rainfall to cause flash flooding of urban, flood prone, and
other low-lying areas.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Flash Flood Watch until 4 AM EDT Thursday for PAZ054-055-
060>062-070-071-101>106.
NJ...Flash Flood Watch until 4 AM EDT Thursday for NJZ001-007>010-
012-015.
High Rip Current Risk until 9 PM EDT this evening for NJZ014-
024>026.
DE...Flash Flood Watch until 4 AM EDT Thursday for DEZ001.
High Rip Current Risk until 9 PM EDT this evening for DEZ004.
MD...None.
MARINE...Small Craft Advisory until 6 AM EDT Friday for ANZ450>455.
&&
Synopsis...Meola
Near Term...Carr/Davis
Short Term...Meola
Long Term...Meola
Aviation...Davis/Meola
Marine...Davis/Meola
Hydrology...WFO PHIHazardous weather outlook, Sep 8, 8:19 PM EDT, 57 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 0819 PM EDT Wed Sep 08 2021 DEZ001-100019- New Castle- 0819 PM EDT Wed Sep 08 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. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. DEZ002-100019- Kent- 0819 PM EDT Wed Sep 08 2021 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...Thursday through Tuesday. 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. DEZ003-100019- Inland Sussex- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. DEZ004-100019- Delaware Beaches- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. PAZ054-100019- Carbon- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. PAZ055-100019- Monroe- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ060-100019- Berks- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ061-100019- Lehigh- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ062-100019- Northampton- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ070-100019- Delaware- 0819 PM EDT Wed Sep 08 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. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ071-100019- Philadelphia- 0819 PM EDT Wed Sep 08 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. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ101-100019- Western Chester- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ102-100019- Eastern Chester- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ103-100019- Western Montgomery- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ104-100019- Eastern Montgomery- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ105-100019- Upper Bucks- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. PAZ106-100019- Lower Bucks- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ001-100019- Sussex- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ007-100019- Warren- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ008-100019- Morris- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ009-100019- Hunterdon- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ010-100019- Somerset- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ012-100019- Middlesex- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. NJZ013-100019- Western Monmouth- 0819 PM EDT Wed Sep 08 2021 This Hazardous Weather Outlook is for western Monmouth County in New Jersey. .DAY ONE...Through tonight. Several instances of flooding are possible, especially in urban and poor-drainage areas and near vulnerable small creeks and streams. Please go to weather.gov/phi/ehwo for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ014-100019- Eastern Monmouth- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. NJZ015-100019- Mercer- 0819 PM EDT Wed Sep 08 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. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. NJZ016-100019- Salem- 0819 PM EDT Wed Sep 08 2021 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...Thursday through Tuesday. 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. NJZ017-100019- Gloucester- 0819 PM EDT Wed Sep 08 2021 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...Thursday through Tuesday. 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. NJZ018-100019- Camden- 0819 PM EDT Wed Sep 08 2021 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...Thursday through Tuesday. 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. NJZ019-100019- Northwestern Burlington- 0819 PM EDT Wed Sep 08 2021 This Hazardous Weather Outlook is for northwestern Burlington 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...Thursday through Tuesday. 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. NJZ020-100019- Ocean- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. NJZ021-100019- Cumberland- 0819 PM EDT Wed Sep 08 2021 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...Thursday through Tuesday. 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. NJZ022-100019- Atlantic- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. NJZ023-100019- Cape May- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. NJZ024-100019- Atlantic Coastal Cape May- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. NJZ025-100019- Coastal Atlantic- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. NJZ026-100019- Coastal Ocean- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. NJZ027-100019- Southeastern Burlington- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. MDZ012-100019- Kent MD- 0819 PM EDT Wed Sep 08 2021 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...Thursday through Tuesday. 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. MDZ015-100019- Queen Annes- 0819 PM EDT Wed Sep 08 2021 This Hazardous Weather Outlook is for Queen Annes 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...Thursday through Tuesday. 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. MDZ019-100019- Talbot- 0819 PM EDT Wed Sep 08 2021 This Hazardous Weather Outlook is for Talbot 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...Thursday through Tuesday. 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. MDZ020-100019- Caroline- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. ANZ430-100019- Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 0819 PM EDT Wed Sep 08 2021 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...Thursday through Tuesday. 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. ANZ431-100019- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 0819 PM EDT Wed Sep 08 2021 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...Thursday through Tuesday. 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. ANZ450-100019- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. ANZ451-100019- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm- 0819 PM EDT Wed Sep 08 2021 This Hazardous Weather Outlook is for the Atlantic coastal waters adjacent to Ocean County out 20 nm. .DAY ONE...Through tonight. There is a low probability of widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Gale-force winds and very rough seas are forecast 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. ANZ452-100019- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. ANZ453-100019- Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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. ANZ454-100019- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm- 0819 PM EDT Wed Sep 08 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. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. ANZ455-100019- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm- 0819 PM EDT Wed Sep 08 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...Thursday through Tuesday. 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 8, 8:32 PM EDT, 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
832 PM EDT WED SEP 8 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0740 PM TSTM WND DMG 3 NW TOBYHANNA TWP 41.15N 75.58W
09/08/2021 MONROE PA FIRE DEPT/RESCUE
TREES AND WIRES DOWN ALONG LOCUST RIDGE ROAD
NEAR ARROWHEAD LAKE. TIME BASED ON RADAR.
&&
DISpecial weather statement, Sep 8, 8:47 PM EDT, 29 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
847 PM EDT Wed Sep 8 2021
NJZ001-007-PAZ054-055-061-062-090115-
Sussex NJ-Warren NJ-Lehigh PA-Monroe PA-Northampton PA-Carbon PA-
847 PM EDT Wed Sep 8 2021
...Strong thunderstorms will impact portions of northwestern Sussex,
northwestern Warren, northern Lehigh, southeastern Carbon, central
Monroe and central Northampton Counties through 915 PM EDT...
At 846 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles north of Bushkill to East Stroudsburg
to near Walnutport. Movement was east at 35 mph.
HAZARD...Wind gusts up to 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Allentown, Montague, Bethlehem, Northampton, East Stroudsburg,
Blairstown, Nazareth, Palmerton, Bangor, Slatington, Pen Argyl, Wind
Gap, Bath, Walnutport, Belfast, East Bangor, Steuben, Stormville,
High Point and Neffs.
This includes the following highways...
Northeast Extension between mile markers 61 and 69.
Interstate 80 in Pennsylvania between mile markers 304 and 314.
Interstate 80 in New Jersey between mile markers 0 and 7.
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.
A Severe Thunderstorm Watch remains in effect until midnight EDT for
northwestern New Jersey...and eastern and northeastern Pennsylvania.
&&
LAT...LON 4131 7461 4107 7486 4063 7543 4064 7581
4098 7535 4123 7514 4115 7515 4114 7509
4108 7503 4116 7490 4127 7484 4135 7475
4136 7469
TIME...MOT...LOC 0046Z 255DEG 28KT 4119 7502 4102 7520 4072 7558
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
StaarmannLocal storm report, Sep 8, 9:08 PM EDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
908 PM EDT WED SEP 8 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0825 PM TSTM WND GST NEW TRIPOLI 40.68N 75.76W
09/08/2021 M51 MPH LEHIGH PA BROADCAST MEDIA
&&
DISpecial weather statement, Sep 8, 9:12 PM EDT, 4 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
912 PM EDT Wed Sep 8 2021
PAZ060-061-090200-
Lehigh PA-Berks PA-
912 PM EDT Wed Sep 8 2021
...A strong thunderstorm will impact portions of northeastern Berks
and central Lehigh Counties through 1000 PM EDT...
At 912 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lenhartsville, or 14 miles east of Schuylkill Haven, moving east at
20 mph.
HAZARD...Wind gusts up to 45 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Allentown, Lenhartsville, Jordan Valley, Neffs, Wanamakers,
Schnecksville, Coffeetown, New Tripoli, Claussville, Catasauqua,
Fullerton and Hokendauqua.
This includes the following highways...
Northeast Extension between mile markers 57 and 65.
Interstate 78 in Pennsylvania between mile markers 33 and 54.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
A Severe Thunderstorm Watch remains in effect until midnight EDT for
eastern Pennsylvania.
&&
LAT...LON 4063 7600 4065 7598 4069 7587 4070 7583
4075 7573 4063 7543 4056 7562 4054 7595
4061 7600
TIME...MOT...LOC 0112Z 248DEG 18KT 4060 7591
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
StaarmannSpecial weather statement, Sep 8, 9:16 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
916 PM EDT Wed Sep 8 2021
NJZ001-007-PAZ055-061-062-090145-
Sussex NJ-Warren NJ-Lehigh PA-Monroe PA-Northampton PA-
916 PM EDT Wed Sep 8 2021
...Strong thunderstorms will impact portions of Sussex, northern
Warren, northeastern Lehigh, southeastern Monroe and Northampton
Counties through 945 PM EDT...
At 916 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Montague to Columbia to near Northampton.
Movement was east at 30 mph.
HAZARD...Wind gusts up to 45 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Newton, Montague, Bethlehem, Northampton, Blairstown, Nazareth,
Bangor, Slatington, Pen Argyl, Wind Gap, Bath, Belvidere, Sussex,
Walnutport, Hope, Belfast, Tatamy, East Bangor, Branchville and
Steuben.
This includes the following highways...
Northeast Extension between mile markers 63 and 68.
Interstate 80 in New Jersey between mile markers 0 and 18.
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.
A Severe Thunderstorm Watch remains in effect until midnight EDT for
northwestern New Jersey...and eastern and northeastern Pennsylvania.
&&
LAT...LON 4126 7449 4095 7477 4064 7543 4069 7576
4094 7519 4109 7504 4108 7503 4109 7500
4116 7490 4121 7486 4123 7487 4127 7484
4135 7475 4136 7469
TIME...MOT...LOC 0116Z 259DEG 27KT 4128 7476 4092 7509 4070 7553
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 8:47 PM EDT | Special Weather Statement | PHI | Northampton | 28 min |
| Sep 8, 9:12 PM EDT | Special Weather Statement | PHI | Lehigh | 48 min |
| Sep 8, 9:16 PM EDT | Special Weather Statement | PHI | Northampton | 29 min |
| Sep 8, 9:38 PM EDT | Special Weather Statement | PHI | Berks | 52 min |
| Sep 8, 9:46 PM EDT | Special Weather Statement | PHI | Lehigh, Northampton | 44 min |
| Sep 8, 9:48 PM EDT | Flash Flood Warning | PHI | Lehigh, Northampton | 7 hr |
| Sep 8, 9:59 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Sep 8, 10:11 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 49 min |
| Sep 8, 10:23 PM EDT | Tornado Warning | PHI | Berks | 22 min |
| Sep 8, 10:27 PM EDT | Special Weather Statement | PHI | Northampton | 33 min |
| Sep 8, 10:42 PM EDT | Flash Flood Warning | PHI | Northampton | 6 hr |
| Sep 8, 10:47 PM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 3 hr |
| Sep 8, 10:47 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Montgomery, Northampton | 58 min |
| Sep 8, 10:56 PM EDT | Special Weather Statement | PHI | Northampton | 34 min |
| Sep 8, 11:27 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 48 min |
| Sep 8, 11:35 PM EDT | Special Weather Statement | PHI | Chester, Delaware, Montgomery | 40 min |
| Sep 9, 12:08 AM EDT | Special Weather Statement | PHI | Bucks, Delaware, Montgomery, Philadelphia | 37 min |
| Sep 9, 4:26 AM EDT | Areal Flood Warning | PHI | Lehigh, Northampton | 3 hr |
| Sep 9, 4:28 AM EDT | Areal Flood Warning | PHI | Northampton | 4 hr |
| Sep 8, 9:43 PM EDT | Special Weather Statement | PHI | Sussex, Warren | 47 min |
| Sep 8, 11:30 PM EDT | Areal Flood Advisory | PHI | Morris, Sussex | 4 hr |
| Sep 9, 12:07 AM EDT | Special Weather Statement | PHI | Hunterdon, Somerset, Warren | 23 min |
| Sep 9, 12:18 AM EDT | Special Marine Warning | PHI | 57 min | |
| Sep 9, 12:30 AM EDT | Special Weather Statement | PHI | Morris | 30 min |
| Sep 9, 12:41 AM EDT | Special Marine Warning | PHI | 52 min | |
| Sep 9, 2:17 AM EDT | Special Weather Statement | PHI | Ocean | 28 min |
| Sep 9, 2:46 AM EDT | Special Weather Statement | PHI | Atlantic | 29 min |
| Sep 9, 3:14 AM EDT | Special Weather Statement | PHI | Atlantic | 31 min |
| Sep 9, 3:30 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland | 112 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.