Alert archive / Pennsylvania / Areal Flood Advisories in 2021

Areal Flood Advisory 110, NWS Philadelphia/Mount Holly

August 10, 2021Berks County, Carbon County, Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood advisory at Aug 10, 2021, 4:18 PM EDT for Berks County, Carbon County, Lehigh County, Pennsylvania. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Aug 10, 2021, 4:18 PM EDT (20:18 UTC)
Expired
Aug 10, 2021, 7:30 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Berks County, PA, Carbon County, PA, Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 154 km from the middle of the area, began a volume at 20:19 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.3 hours before the alert went out and 221 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 2021-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 529 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2021-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939Sfc1 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
529 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

070 
WGUS81 KPHI 102018
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
418 PM EDT Tue Aug 10 2021

PAC011-025-077-102330-
/O.NEW.KPHI.FA.Y.0110.210810T2018Z-210810T2330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berks PA-Carbon PA-Lehigh PA-
418 PM EDT Tue Aug 10 2021

The National Weather Service in Mount Holly has issued a

* Flood Advisory for...
  Berks County in eastern Pennsylvania...
  Central Lehigh County in eastern Pennsylvania...
  Southwestern Carbon County in northeastern Pennsylvania...

* Until 730 PM EDT.

* At 418 PM EDT, Doppler radar indicated heavy rain due to 
  thunderstorms. Minor flooding is ongoing or expected to begin 
  shortly in the advisory area. Up to 1 inch of rain has fallen.

* Some locations that will experience flooding include...
  Allentown, Reading, Lehighton, Wyomissing, Palmerton, Kutztown, 
  Jim Thorpe, Hamburg, Slatington, Fleetwood, Sinking Spring, and 
  Laureldale.

This includes the following highways...
	Interstate 78 in Pennsylvania between mile markers 10 and 56.
	Interstate 176 in Pennsylvania between mile markers 7 and 11.
	Northeast Extension between mile markers 53 and 77.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4049 7643 4052 7634 4054 7617 4058 7604
      4057 7602 4064 7599 4073 7576 4074 7576
      4082 7589 4091 7600 4098 7581 4085 7565
      4055 7552 4020 7597 4036 7621

$$

SFJ
2 follow-up statements
920 
WGUS81 KPHI 102302
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
702 PM EDT Tue Aug 10 2021

PAC025-077-102312-
/O.CAN.KPHI.FA.Y.0110.000000T0000Z-210810T2330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Carbon PA-Lehigh PA-
702 PM EDT Tue Aug 10 2021

...FLOOD ADVISORY IS CANCELLED FOR CENTRAL LEHIGH AND SOUTHWESTERN 
CARBON COUNTIES...

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

LAT...LON 4049 7643 4052 7634 4054 7617 4058 7604
      4057 7602 4064 7599 4068 7589 4049 7560
      4020 7597 4036 7621

$$

PAC011-102330-
/O.CON.KPHI.FA.Y.0110.000000T0000Z-210810T2330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berks PA-
702 PM EDT Tue Aug 10 2021

...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 730 PM EDT THIS EVENING 
FOR BERKS COUNTY...

At 702 PM EDT, Doppler radar indicated heavy rain due to 
thunderstorms. Minor flooding is ongoing or expected to begin 
shortly in the advisory area. Between 1 and 1.5 inches of rain have 
fallen.

Some locations that will experience flooding include...
  Reading, Wyomissing, Kutztown, Hamburg, Fleetwood, Sinking Spring, 
  Laureldale, Womelsdorf, Wernersville, Topton, Robesonia, and 
  Leesport.

This includes the following highways...
	Interstate 78 in Pennsylvania between mile markers 10 and 44.
	Interstate 176 in Pennsylvania between mile markers 7 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 4049 7643 4052 7634 4054 7617 4058 7604
      4057 7602 4064 7599 4068 7589 4049 7560
      4020 7597 4036 7621

$$

SFJ
270 
WGUS81 KPHI 102331
FLSPHI

Flood Advisory
National Weather Service Mount Holly NJ
731 PM EDT Tue Aug 10 2021

PAC011-102341-
/O.EXP.KPHI.FA.Y.0110.000000T0000Z-210810T2330Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berks PA-
731 PM EDT Tue Aug 10 2021

...FLOOD ADVISORY HAS EXPIRED FOR BERKS COUNTY...

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

LAT...LON 4049 7643 4052 7634 4054 7617 4058 7604
      4057 7602 4064 7599 4068 7589 4049 7560
      4020 7597 4036 7621

$$

SFJ

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 Aug 10, 3:58 PM EDT, 20 minutes earlier.

Area forecast discussion, Aug 10, 3:58 PM EDT, 20 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
358 PM EDT Tue Aug 10 2021

.SYNOPSIS...
Bermuda high pressure will continue to influence our weather
into Friday. A cold front approaching from the northwest is
forecast to arrive on Saturday. The boundary is expected to
stall to the south of our region for Sunday into the early part
of the new week as high pressure builds across New York and New
England.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
The leftover clouds from this morning were a bit slow to erode
across the region today, but as of now, most areas have at least
partly sunny skies. Some lingering clouds across north NJ will
mix out thru 4 PM. A few tstms have developed just to the W of
our area with some SVRs being issued by State College. This
activity will continue eastward this evening and tap into the
hot and humid airmass across our area. We have, therefore, kept
in high chc/low likely pops for the nrn/wrn areas this evening.
The activity will probably decrease as it heads into
NJ/Delmarva, so lower pops there overnight. There is some
uncertainty with regards to how far east the activity will go
this evening. Very mild and humid overnight with patchy fog.
Light south to southwest winds after sunset.

Wednesday...Heat headlines remain in place. Sunny, hot and
humid with highs in the 90s most areas and upper 80s (only) at
the shore and NW higher areas. Mostly dry early then a few sct
showers/tstms for the afternoon. Slight chc pops for NJ shore
areas and ern DE with small chc pops for PA, north NJ and ern
shore areas of MD. Apparent temps in the 90s for shore areas and
NW hills and low 100s for most other areas.

&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
The Excessive Heat Warning and Heat Advisory for Wednesday
night and Thursday remain in effect.

The mid level wave associated with the convection in Missouri
and vicinity this afternoon should reach our region on Wednesday
night. Scattered to isolated showers and thunderstorms are
possible at that time. However, the activity may weaken a bit
with the loss of daylight.

Even though Thursday should be the peak of the heat and
humidity, a fairly strong cap is anticipated. As a result,
showers and thunderstorms are expected to be limited. We may see
some remnant convection approach and enter our northwestern
counties late in the day but is should weaken during the
nighttime hours.

High temperatures on Thursday will favor the 90s with heat
index values in excess of 100 at most locations.

Friday is anticipated to be almost as hot and humid as
Thursday. It seems likely that we will need to extend the
Excessive Heat Warning and the Heat Advisory for another day, as
we get closer in time.

It appears as though there will be a slightly better potential
for convection on Friday than on Thursday as the cap weakens a
little. The chance of precipitation seems better in the terrain
of eastern Pennsylvania and northern New Jersey than at points
to the southeast.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
A cold front is forecast to approach from the northwest on
Saturday and it should pass through our region on Saturday
night. The excessive heat and humidity will begin to get knocked
back at that time. It should also present our best potential
for widespread showers and thunderstorms.

The frontal boundary will likely stall to our south across
southeastern Maryland, southern Virginia and the adjacent waters
for Sunday through Tuesday. Meanwhile, high pressure is
anticipated to build across New York and New England. The
pattern will maintain a chance of showers and thunderstorms
across parts of eastern Maryland, Delaware and far southern New
Jersey through the period. The potential for precipitation may
begin to lift slowly back to the north in a developing return
flow as we get into the new week.

Temperatures and humidity levels are expected to be on the
decrease, with highs settling into the 80s with lows mainly in
the 60s.

&&

.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Rest of the afternoon...VFR then scattered showers and tstms
developing across the wrn areas (KRDG,KABE). The activity will
move slowly eastward into the evening. Lower CIGS/VSBYS
possible. Mostly S to SW winds 5 to 10 knots.

Tonight... Showers/tstms slowly diminish thru 02Z/03Z while
spreadings across NJ and nrn Delmarva. Slowly decreasing clouds
and patchy fog developing. Light SW or S winds.

Wednesday...VFR after patchy morning fog. Sct Cu mostly, few
showers possible late afternoon, but not in TAFS attm. SW winds
5 to 10 knots.

Outlook...

Thursday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. Southwest around 10 knots.
Medium confidence.

Friday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. A chance of afternoon and
evening showers and thunderstorms. Southwest around 10 knots.
Medium confidence.

Saturday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. Afternoon and evening
showers and thunderstorms are likely. Southwest to west around
10 knots. Medium confidence.

Sunday...Early morning low clouds and visibility restrictions
are possible, otherwise mainly VFR. North to northeast wind 5 to
10 knots. Medium confidence.

&&

.MARINE...
Winds and seas will remain below SCA conditions although both
will increase this evening. Winds and seas along the nrn NJ
waters may approach SCA conditions with some gusts 20-25 knots
and seas 3 to 4 ft. Scattered showers and perhaps a tstm this
evening otherwise fair. sub-SCA and fair weather expected
Wednesday.

Outlook...

Thursday through Sunday...No marine headlines are anticipated.

Rip currents...

There is a low risk of rip currents through at least Wednesday.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Excessive Heat Warning from noon Wednesday to 8 PM EDT
     Thursday for PAZ070-071-101>106.
     Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
     PAZ060>062.
NJ...Excessive Heat Warning from noon Wednesday to 8 PM EDT
     Thursday for NJZ008>010-012-013-015-017>020-027.
     Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
     NJZ001-007-014-016-021-022-026.
DE...Excessive Heat Warning from noon Wednesday to 8 PM EDT
     Thursday for DEZ001.
     Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
     DEZ002-003.
MD...Heat Advisory from noon Wednesday to 8 PM EDT Thursday for
     MDZ012-015-019-020.
MARINE...None.

&&

Synopsis...Iovino
Near Term...O'Hara
Short Term...Iovino
Long Term...Iovino
Aviation...Iovino/O'Hara
Marine...Iovino/O'Hara
Hazardous weather outlook, Aug 10, 10:57 AM EDT, 5 hours 21 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
1057 AM EDT Tue Aug 10 2021

DEZ001-111457-
New Castle-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

DEZ002-111457-
Kent-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

Minor coastal flooding is possible.

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

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

DEZ003-111457-
Inland Sussex-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

DEZ004-111457-
Delaware Beaches-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

PAZ054-111457-
Carbon-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Carbon County in Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ055-111457-
Monroe-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Monroe County in Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ060-111457-
Berks-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Berks County in Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ061-111457-
Lehigh-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Lehigh County in Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ062-111457-
Northampton-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Northampton County in
Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ070-111457-
Delaware-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ071-111457-
Philadelphia-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ101-111457-
Western Chester-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ102-111457-
Eastern Chester-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ103-111457-
Western Montgomery-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ104-111457-
Eastern Montgomery-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ105-111457-
Upper Bucks-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

PAZ106-111457-
Lower Bucks-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ001-111457-
Sussex-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ007-111457-
Warren-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ008-111457-
Morris-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ009-111457-
Hunterdon-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ010-111457-
Somerset-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ012-111457-
Middlesex-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ013-111457-
Western Monmouth-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

NJZ014-111457-
Eastern Monmouth-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

NJZ015-111457-
Mercer-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Friday.

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

.SPOTTER INFORMATION STATEMENT...

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

NJZ016-111457-
Salem-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

NJZ017-111457-
Gloucester-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

NJZ018-111457-
Camden-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

NJZ019-111457-
Northwestern Burlington-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

NJZ020-111457-
Ocean-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for inland portions of Ocean County
in New Jersey.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

NJZ021-111457-
Cumberland-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

NJZ022-111457-
Atlantic-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for inland portions of Atlantic
County in New Jersey.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

NJZ023-111457-
Cape May-
1057 AM EDT Tue Aug 10 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...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.

NJZ024-111457-
Atlantic Coastal Cape May-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for the Atlantic coastal portions of
Cape May County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

NJZ025-111457-
Coastal Atlantic-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for coastal portions of Atlantic
County in New Jersey.

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

NJZ026-111457-
Coastal Ocean-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for coastal portions of Ocean County
in New Jersey.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

NJZ027-111457-
Southeastern Burlington-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Dangerously hot conditions could result in heat exhaustion or
heat stroke with prolonged exposure on Thursday.
Hot conditions could result in heat exhaustion with prolonged exposure
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.

MDZ012-111457-
Kent MD-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

Hot conditions could result in heat exhaustion with prolonged exposure.

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

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

MDZ015-111457-
Queen Annes-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Queen Annes County in Maryland.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

MDZ019-111457-
Talbot-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

MDZ020-111457-
Caroline-
1057 AM EDT Tue Aug 10 2021

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

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

Hot conditions could result in heat exhaustion with prolonged exposure
on Wednesday.
Hot conditions could result in heat exhaustion with prolonged exposure
on Thursday.

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.

ANZ430-111457-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
1057 AM EDT Tue Aug 10 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...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.

ANZ431-111457-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
1057 AM EDT Tue Aug 10 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...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.

ANZ450-111457-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
1057 AM EDT Tue Aug 10 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.

ANZ451-111457-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
1057 AM EDT Tue Aug 10 2021

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

.DAY ONE...Through tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...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.

ANZ452-111457-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
1057 AM EDT Tue Aug 10 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...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.

ANZ453-111457-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
1057 AM EDT Tue Aug 10 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...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.

ANZ454-111457-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
1057 AM EDT Tue Aug 10 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...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.

ANZ455-111457-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
1057 AM EDT Tue Aug 10 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...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.

In the hours before

Special weather statement, Aug 10, 2:07 PM EDT, 2 hours 11 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
207 PM EDT Tue Aug 10 2021

NJZ016-017-101845-
Salem NJ-Gloucester NJ-
207 PM EDT Tue Aug 10 2021

...A strong thunderstorm will impact portions of northwestern Salem
and west central Gloucester Counties through 245 PM EDT...

At 207 PM EDT, Doppler radar was tracking a strong thunderstorm over
Salem, or 10 miles south of Wilmington, moving northeast at 15 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Pennsville, Carneys Point, Salem, Woodstown, Alloway, Quinton and
Beckett.

This includes the following highways...
 New Jersey Turnpike near exit 1.
 Interstate 295 in New Jersey between mile markers 1 and 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3979 7537 3956 7521 3953 7554 3961 7556
      3961 7555 3963 7557
TIME...MOT...LOC 1807Z 238DEG 14KT 3959 7549

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

SFJ
Special weather statement, Aug 10, 3:06 PM EDT, 1 hour 12 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
306 PM EDT Tue Aug 10 2021

PAZ060-101930-
Berks PA-
306 PM EDT Tue Aug 10 2021

...A strong thunderstorm will impact portions of northwestern Berks
County through 330 PM EDT...

At 306 PM EDT, Doppler radar was tracking a strong thunderstorm near
Pine Grove, or 8 miles north of Myerstown, moving east at 20 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Reading, Wyomissing, Sinking Spring, Womelsdorf, Wernersville,
Robesonia, Bernville, Strausstown, Fairview Hgts, Spring Ridge,
Wyomissing Hills, West Lawn, Whitfield and West Wyomissing.

This includes Interstate 78 in Pennsylvania between mile markers 10
and 28.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4052 7634 4052 7625 4054 7617 4056 7613
      4057 7608 4058 7606 4058 7605 4032 7595
      4034 7619 4036 7621 4037 7623 4049 7643
TIME...MOT...LOC 1906Z 251DEG 19KT 4049 7635

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

SFJ
Special weather statement, Aug 10, 3:33 PM EDT, 45 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
333 PM EDT Tue Aug 10 2021

PAZ060-102000-
Berks PA-
333 PM EDT Tue Aug 10 2021

...A strong thunderstorm will impact portions of central Berks County
through 400 PM EDT...

At 332 PM EDT, Doppler radar was tracking a strong thunderstorm over
Strausstown, or 8 miles northeast of Myerstown, moving east at 25
mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Reading, Wyomissing, Hamburg, Sinking Spring, Laureldale, Womelsdorf,
Wernersville, Robesonia, Leesport, Shoemakersville, Bernville,
Strausstown, Fairview Hgts, Spring Ridge, Shillington, West Reading,
Mohnton, Kenhorst, Centerport and Wyomissing Hills.

This includes Interstate 78 in Pennsylvania between mile markers 16
and 35.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4052 7627 4054 7617 4057 7608 4058 7606
      4057 7602 4063 7599 4066 7591 4017 7593
      4031 7614 4036 7621 4039 7628
TIME...MOT...LOC 1932Z 272DEG 16KT 4046 7618

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

SFJ
Special weather statement, Aug 10, 3:52 PM EDT, 26 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
352 PM EDT Tue Aug 10 2021

PAZ054-055-060>062-102015-
Lehigh PA-Monroe PA-Northampton PA-Berks PA-Carbon PA-
352 PM EDT Tue Aug 10 2021

...Strong thunderstorms will impact portions of Berks, Lehigh,
southern Carbon, southwestern Monroe and west central Northampton
Counties through 415 PM EDT...

At 352 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near McKeansburg to Leesport to Robesonia.
Movement was northeast at 40 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Allentown, Reading, Lehighton, Wyomissing, Palmerton, Birdsboro,
Kutztown, Jim Thorpe, Hamburg, Slatington, Fleetwood, Sinking Spring,
Laureldale, Nesquehoning, Wernersville, Walnutport, Topton,
Robesonia, Leesport and Shoemakersville.

This includes the following highways...
 Pennsylvania Turnpike between mile markers 296 and 299.
 Northeast Extension between mile markers 54 and 87.
 Interstate 78 in Pennsylvania between mile markers 28 and 56.
 Interstate 176 in Pennsylvania between mile markers 1 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4046 7605 4058 7604 4057 7602 4063 7600
      4074 7576 4084 7591 4106 7548 4055 7553
      4014 7587 4034 7618
TIME...MOT...LOC 1952Z 230DEG 35KT 4064 7594 4046 7595 4034 7615

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

SFJ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 10:10 PM EDTAreal Flood AdvisoryPHICarbon3 hr
Aug 10, 3:33 AM EDTExcessive Heat WarningPHIBerks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more4 days
Aug 10, 3:33 AM EDTHeat AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton4 days
Aug 10, 5:58 AM EDTFlash Flood WarningPHIBucks2 hr
Aug 10, 3:06 PM EDTSpecial Weather StatementPHIBerks24 min
Aug 10, 3:33 PM EDTSpecial Weather StatementPHIBerks27 min
Aug 10, 3:52 PM EDTSpecial Weather StatementPHIBerks, Carbon, Lehigh23 min
Aug 10, 4:01 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Chester, Lehigh, Montgomery, Northampton44 min
Aug 10, 4:33 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more42 min
Aug 10, 5:05 PM EDTSpecial Weather StatementPHINorthampton25 min
Aug 10, 5:09 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery, Philadelphia51 min
Aug 10, 5:11 PM EDTSpecial Weather StatementPHIChester, Montgomery, Philadelphia34 min
Aug 10, 5:40 PM EDTSpecial Weather StatementPHIChester35 min
Aug 10, 5:58 PM EDTSpecial Weather StatementPHIPhiladelphia32 min
Aug 10, 6:36 PM EDTSevere Thunderstorm WarningPHIBerks, Chester39 min
Aug 10, 7:10 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery65 min
Aug 10, 7:54 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIChester51 min

Nearby

Areal Flood Advisories in Pennsylvania, 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.