Alert archive / Pennsylvania / Areal Flood Advisories in 2021

Areal Flood Advisory 190, NWS Philadelphia/Mount Holly

September 28, 20215 counties in Pennsylvania; Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Sep 28, 2021, 8:26 AM EDT for 5 counties in Pennsylvania; Warren County, New Jersey. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Sep 28, 2021, 8:26 AM EDT (12:26 UTC)
Expired
Sep 28, 2021, 10:53 AM EDT
In force
2 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Warren County, NJ, Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 156 km from the middle of the area, began a volume at 12:27 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 0.4 hours before the alert went out and 223 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2021-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2021-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
35 J/kg
Mixed-layer CIN
-322 J/kg
Mixed-layer LCL
1669 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

940 
WGUS81 KPHI 281226
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
826 AM EDT Tue Sep 28 2021

NJC041-PAC011-025-077-089-095-281530-
/O.NEW.KPHI.FA.Y.0190.210928T1226Z-210928T1530Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Warren NJ-Berks PA-Carbon PA-Lehigh PA-Monroe PA-Northampton PA-
826 AM EDT Tue Sep 28 2021

The National Weather Service in Mount Holly has issued a

* Flood Advisory for...
  Northwestern Warren County in northwestern New Jersey...
  Northwestern Berks County in eastern Pennsylvania...
  Northwestern Lehigh County in eastern Pennsylvania...
  Northern Northampton County in eastern Pennsylvania...
  Southern Carbon County in northeastern Pennsylvania...
  Southern Monroe County in northeastern Pennsylvania...

* Until 1130 AM EDT.

* At 826 AM 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 and an additional 0.5 inches or so are possible.

* Some locations that may experience flooding include...
  Lehighton, East Stroudsburg, Palmerton, Bangor, Jim Thorpe, 
  Slatington, Pen Argyl, Nesquehoning, Wind Gap, Walnutport, East 
  Bangor, and Delaware Water Gap.

This includes the following highways...
	Interstate 80 in New Jersey between mile markers 0 and 7.
	Interstate 80 in Pennsylvania between mile markers 305 and 314.
	Northeast Extension between mile markers 67 and 83.

LAT...LON 4051 7630 4064 7599 4069 7584 4074 7576
      4082 7589 4086 7594 4105 7515 4090 7502
      4060 7601 4052 7627 4049 7634 4051 7634
      4052 7634 4051 7633 4052 7631

$$

MPS
3 follow-up statements
361 
WGUS81 KPHI 281240
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
840 AM EDT Tue Sep 28 2021

PAC011-281250-
/O.CAN.KPHI.FA.Y.0190.000000T0000Z-210928T1530Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berks PA-
840 AM EDT Tue Sep 28 2021

...FLOOD ADVISORY IS CANCELLED FOR NORTHWESTERN BERKS COUNTY...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

LAT...LON 4067 7589 4069 7584 4073 7576 4074 7576
      4082 7589 4086 7594 4105 7515 4090 7502
      4065 7585

$$

NJC041-PAC025-077-089-095-281530-
/O.CON.KPHI.FA.Y.0190.000000T0000Z-210928T1530Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Warren NJ-Carbon PA-Lehigh PA-Monroe PA-Northampton PA-
840 AM EDT Tue Sep 28 2021

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1130 AM EDT THIS MORNING 
FOR NORTHWESTERN WARREN, NORTHWESTERN LEHIGH, NORTHERN NORTHAMPTON, 
SOUTHERN CARBON, AND SOUTHERN MONROE COUNTIES...

At 840 AM 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 and an additional 0.5 inches or so are possible.

Some locations that may experience flooding include...
  Lehighton, East Stroudsburg, Palmerton, Bangor, Jim Thorpe, 
  Slatington, Pen Argyl, Nesquehoning, Wind Gap, Walnutport, East 
  Bangor, and Delaware Water Gap.

This includes the following highways...
	Interstate 80 in New Jersey between mile markers 0 and 7.
	Interstate 80 in Pennsylvania between mile markers 305 and 314.
	Northeast Extension between mile markers 67 and 83.

LAT...LON 4067 7589 4069 7584 4073 7576 4074 7576
      4082 7589 4086 7594 4105 7515 4090 7502
      4065 7585

$$

MPS
890 
WGUS81 KPHI 281413
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
1013 AM EDT Tue Sep 28 2021

NJC041-PAC025-077-089-095-281530-
/O.CON.KPHI.FA.Y.0190.000000T0000Z-210928T1530Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Warren NJ-Carbon PA-Lehigh PA-Monroe PA-Northampton PA-
1013 AM EDT Tue Sep 28 2021

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1130 AM EDT THIS MORNING 
FOR NORTHWESTERN WARREN, NORTHWESTERN LEHIGH, NORTHERN NORTHAMPTON, 
SOUTHERN CARBON, AND SOUTHERN MONROE COUNTIES...

At 1013 AM EDT, Heavy rain that resulted in up to one inch of 
rainfall has moved out of the area. Minor flooding is ongoing or 
expected to begin shortly in the advisory area.

Some locations that may experience flooding include...
  Lehighton, East Stroudsburg, Palmerton, Bangor, Jim Thorpe, 
  Slatington, Pen Argyl, Nesquehoning, Wind Gap, Walnutport, East 
  Bangor, and Delaware Water Gap.

This includes the following highways...
	Interstate 80 in New Jersey between mile markers 0 and 7.
	Interstate 80 in Pennsylvania between mile markers 305 and 314.
	Northeast Extension between mile markers 67 and 83.

LAT...LON 4067 7589 4069 7584 4073 7576 4074 7576
      4082 7589 4086 7594 4105 7515 4090 7502
      4065 7585

$$

MPS
496 
WGUS81 KPHI 281453
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
1053 AM EDT Tue Sep 28 2021

NJC041-PAC025-077-089-095-281503-
/O.CAN.KPHI.FA.Y.0190.000000T0000Z-210928T1530Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Warren NJ-Carbon PA-Lehigh PA-Monroe PA-Northampton PA-
1053 AM EDT Tue Sep 28 2021

...FLOOD ADVISORY IS CANCELLED FOR NORTHWESTERN WARREN, NORTHWESTERN 
LEHIGH, NORTHERN NORTHAMPTON, SOUTHERN CARBON, AND SOUTHERN MONROE 
COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 4067 7589 4069 7584 4073 7576 4074 7576
      4082 7589 4086 7594 4105 7515 4090 7502
      4065 7585

$$

MPS

What 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 28, 3:07 AM EDT, 5 hours 19 minutes earlier.

Area forecast discussion, Sep 28, 3:07 AM EDT, 5 hours 19 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
307 AM EDT Tue Sep 28 2021

.SYNOPSIS...
A cold front will move through the region later today. After
that, a broad surface high will move southeastward towards New
England and the mid-Atlantic for the remainder of the week into
the weekend. An area of low pressure may move into the region
late in the weekend or early next week.
&&

.NEAR TERM /THROUGH TONIGHT/...
A shortwave trough axis and associated mid-level vorticity maxima
are pushing toward the Mid-Atlantic region this morning from the
Ohio Valley. A cold front currently across Upstate New York and the
eastern Great Lakes will cross the forecast area from north to south
as the day progresses and is anticipated to be offshore/south of the
area shortly after midnight.

Guidance suggests that the southwesterly return flow ahead of the
front will be sufficient to support convection, potentially in a few
rounds. Scattered nocturnal convection has developed upstream
associated with the initial vorticity maxima across Ohio and
central/western Pennsylvania. This activity should move into areas
mainly near and north/west of the Philly metro (where elevated
instability will be highest) and will be moving generally eastward
through the remainder of the morning. An additional round of
convection is expected to develop along or ahead of the cold front
and possibly any remnant boundaries associated with the morning
convection into the early/mid afternoon hours (1-4 PM), mainly
across southeast PA and central NJ. This activity is expected to
move southeastward and offshore during the evening hours.

There will be a threat of severe thunderstorms with any of the more
robust cells that develop. Diurnal instability will be in the 1000-
1500+ J/kg range along with deep layer effective shear around 25
kts. Mid-level lapse rates around 7 C/km and DCAPE >700 J/kg could
result in fairly strong updrafts and downdrafts with small hail and
strong/damaging winds possible. SPC has introduced a Slight Risk for
areas near and south of Philly with a Marginal Risk for most of the
remainder of the forecast area. PWats around 1.3-1.5" along with a
progressive storm motion should preclude any widespread notable
flash flood threat, but some localized flooding may be possible.

Expect mostly cloudy skies with highs in the low-mid 70s north/west
of I-95 and around 80 degrees near/south of the Philly metro. Winds
will be from the west ahead of the front, then turn northerly behind
the front around 5-10 mph with higher gusts during the day. Expect
lows falling into the upper 40s to 50s for most tonight along with
clearing skies.
&&

.SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/...
Low pressure will develop and move northward over the Canadian
Maritimes during this period while high pressure gradually builds in
from the north and west. In the upper levels, a large closed low
will wobble through SE Canada and northern New England. This pattern
will result in a dry, cool northerly flow over the area. Highs
Wednesday and Thursday will generally be in the 60s to low 70s under
a mix of sun and some fair weather clouds. Lows Wednesday night will
be mostly in the 40s to low 50s. However by Friday morning the winds
will be lighter as high pressure draws closer and this may allow
temperatures to drop into the upper 30s over the southern Poconos
and extreme NW NJ.
&&

.LONG TERM /FRIDAY THROUGH MONDAY/...
No major changes to the long range forecast with this update. A
closed upper low will meander across Atlantic Canada into this
weekend with upper level ridging remaining centered to our north
over eastern Ontario into Quebec. Guidance still varies in how
quickly this blocking pattern will break down into the weekend, but
this will ultimately keep Hurricane Sam well out to sea at our
latitude as it begins moving poleward. At the surface, weak and cool
high pressure will remain entrenched across the region through at
least Friday and likely into Saturday. This will continue to be a
largely quiet and tranquil period of weather for the region, at
least through Friday/Saturday and possibly right through the weekend

High temperatures will be near to a bit below normal during this
period with highs mostly in the 60s to low 70s. Lows will once again
be quite chilly early Saturday with temperatures potentially getting
to around or below 40 across the southern Poconos into NW NJ.

Cloud coverage looks like its going to  beginning increasing into
the weekend. Given that a consensus in guidance suggests this
pattern will begin to break down at that time, we have maintained
the slight chance of showers for Sunday and Monday but for Sunday
this should mainly be just for the southern Poconos and NW NJ.
&&

.AVIATION /07Z TUESDAY THROUGH SATURDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE,
KRDG, KILG, KMIV, KACY and surrounding areas.

Today...Prevailing VFR, but scattered showers and thunderstorms are
expected through much of the daytime hours (lingering into the
evening for MIV/ACY). Restrictions are probable with any showers and
storms that develop near or over terminals. Winds initially westerly
around 5-10 kts will shift northerly by around 00Z. Moderate
confidence overall.

Tonight...Prevailing VFR. Lingering showers and storms at MIV/ACY
should end in the 03-06Z time frame. Winds northerly around 5-10
kts. High confidence.

Outlook...

Wednesday through Saturday...Prevailing VFR. Some patchy fog
possible in the pre-dawn hours. Winds north to northwesterly around
5-10 kts during the daytime and 5 kts or less at night. High
confidence overall.

&&

.MARINE...
Winds and seas will subside slightly through early this morning,
then sub-advisory conditions expected. Westerly winds around 10-15
kts with gusts up to 20 kts will become northerly by around
midnight. Seas 2-4 feet. Scattered showers and thunderstorms
developing in the late afternoon and evening hours.

Outlook...

Wednesday through Saturday...Sub-advisory conditions expected until
maybe Saturday. Winds northerly around 10-15 kts. Seas 2-4
feet...maybe some 5 foot swells this weekend as Sam passes well to
our east.

Rip Currents...

A LOW risk of dangerous rip currents is expected for Tue and
Wed. Showers and a few tstms expected Tue.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Small Craft Advisory until 6 AM EDT early this morning for
     ANZ450>455.

&&

Synopsis...Fitzsimmons
Near Term...Staarmann
Short Term...Fitzsimmons
Long Term...Fitzsimmons/Kruzdlo
Aviation...Fitzsimmons/Staarmann
Marine...Fitzsimmons/Staarmann
Hazardous weather outlook, Sep 28, 5:03 AM EDT, 3 hours 23 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0503 AM EDT Tue Sep 28 2021

DEZ001-290903-
New Castle-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

DEZ002-290903-
Kent-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

DEZ003-290903-
Inland Sussex-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for inland portions of Sussex County
in Delaware.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

DEZ004-290903-
Delaware Beaches-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Sussex County in Delaware.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

PAZ054-290903-
Carbon-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ055-290903-
Monroe-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ060-290903-
Berks-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ061-290903-
Lehigh-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ062-290903-
Northampton-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ070-290903-
Delaware-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ071-290903-
Philadelphia-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ101-290903-
Western Chester-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ102-290903-
Eastern Chester-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ103-290903-
Western Montgomery-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ104-290903-
Eastern Montgomery-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ105-290903-
Upper Bucks-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

PAZ106-290903-
Lower Bucks-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ001-290903-
Sussex-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ007-290903-
Warren-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ008-290903-
Morris-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ009-290903-
Hunterdon-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ010-290903-
Somerset-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ012-290903-
Middlesex-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ013-290903-
Western Monmouth-
0503 AM EDT Tue Sep 28 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...Wednesday through Monday.

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.

NJZ014-290903-
Eastern Monmouth-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for eastern Monmouth County in New
Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ015-290903-
Mercer-
0503 AM EDT Tue Sep 28 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ016-290903-
Salem-
0503 AM EDT Tue Sep 28 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...Wednesday through Monday.

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.

NJZ017-290903-
Gloucester-
0503 AM EDT Tue Sep 28 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...Wednesday through Monday.

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.

NJZ018-290903-
Camden-
0503 AM EDT Tue Sep 28 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...Wednesday through Monday.

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.

NJZ019-290903-
Northwestern Burlington-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for northwestern Burlington County in
New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

NJZ020-290903-
Ocean-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for inland portions of Ocean 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...Wednesday through Monday.

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.

NJZ021-290903-
Cumberland-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Cumberland 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...Wednesday through Monday.

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.

NJZ022-290903-
Atlantic-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for inland portions of Atlantic
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...Wednesday through Monday.

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.

NJZ023-290903-
Cape May-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Cape May County excluding the
Atlantic coast 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...Wednesday through Monday.

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.

NJZ024-290903-
Atlantic Coastal Cape May-
0503 AM EDT Tue Sep 28 2021

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ025-290903-
Coastal Atlantic-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for coastal portions of Atlantic
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...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ026-290903-
Coastal Ocean-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for coastal portions of Ocean 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...Wednesday through Monday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ027-290903-
Southeastern Burlington-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for southeastern Burlington 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...Wednesday through Monday.

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.

MDZ012-290903-
Kent MD-
0503 AM EDT Tue Sep 28 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...Wednesday through Monday.

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.

MDZ015-290903-
Queen Annes-
0503 AM EDT Tue Sep 28 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...Wednesday through Monday.

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.

MDZ019-290903-
Talbot-
0503 AM EDT Tue Sep 28 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...Wednesday through Monday.

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.

MDZ020-290903-
Caroline-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Caroline 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...Wednesday through Monday.

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.

ANZ430-290903-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for upper Delaware Bay.

.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...Wednesday through Monday.

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.

ANZ431-290903-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0503 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for lower Delaware Bay.

.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...Wednesday through Monday.

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.

ANZ450-290903-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0503 AM EDT Tue Sep 28 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...Wednesday through Monday.

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.

ANZ451-290903-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0503 AM EDT Tue Sep 28 2021

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

.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...Wednesday through Monday.

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.

ANZ452-290903-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0503 AM EDT Tue Sep 28 2021

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

.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...Wednesday through Monday.

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.

ANZ453-290903-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0503 AM EDT Tue Sep 28 2021

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

.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...Wednesday through Monday.

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.

ANZ454-290903-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0503 AM EDT Tue Sep 28 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.

Scattered severe thunderstorms are possible.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

ANZ455-290903-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0503 AM EDT Tue Sep 28 2021

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

.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...Wednesday through Monday.

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 9:23 AM EDTSpecial Weather StatementPHIMontgomery37 min
Sep 28, 9:47 AM EDTSpecial Weather StatementPHIBucks, Montgomery28 min
Sep 28, 6:15 PM EDTSpecial Weather StatementPHIChester45 min
Sep 28, 7:14 PM EDTSpecial Weather StatementPHIDelaware46 min
Sep 28, 7:29 PM EDTSevere Thunderstorm WarningPHIDelaware31 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.