Alert archive / Maryland / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 297, NWS Philadelphia/Mount Holly

August 15, 2023Caroline County, Kent County, Queen Anne's County, Maryland; Kent County, New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 15, 2023, 3:40 PM EDT for Caroline County, Kent County, Queen Anne's County, Maryland; Kent County, New Castle County, Delaware. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 15, 2023, 3:40 PM EDT (19:40 UTC)
Expired: Aug 15, 2023, 4:30 PM EDT
In force: 50 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Kent County, DE, New Castle County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD

The radar

The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 19:41 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 15, 2:08 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.7 hours before the alert went out and 117 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 195 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1125 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

533 
WUUS51 KPHI 151940
SVRPHI
DEC001-003-MDC011-029-035-152030-
/O.NEW.KPHI.SV.W.0297.230815T1940Z-230815T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
340 PM EDT Tue Aug 15 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southwestern New Castle County in northern Delaware...
  Northwestern Kent County in central Delaware...
  Queen Anne's County in northeastern Maryland...
  Northeastern Caroline County in eastern Maryland...
  Kent County in northeastern Maryland...

* Until 430 PM EDT.

* At 339 PM EDT, a severe thunderstorm was located near Rock Hall, or
  8 miles northwest of Centerville, moving east at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Dover, Centerville, Smyrna, Chestertown, Centreville, Camden,
  Clayton, Rock Hall, Church Hill, Millington, Sudlersville,
  Betterton, Goldsboro, Woodside, Viola, Hartly, Old Town, Newtown,
  Hazlettville and Morgnec.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3904 7631 3898 7628 3897 7622 3900 7617
      3903 7624 3909 7623 3917 7628 3926 7622
      3929 7617 3932 7618 3933 7614 3937 7611
      3936 7588 3938 7582 3938 7577 3940 7577
      3941 7566 3903 7553 3895 7633
TIME...MOT...LOC 1939Z 253DEG 41KT 3911 7620 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLB

4 follow-up statements

568 
WWUS51 KPHI 151944
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
344 PM EDT Tue Aug 15 2023

DEC001-003-MDC011-029-035-152030-
/O.CON.KPHI.SV.W.0297.000000T0000Z-230815T2030Z/
New Castle DE-Kent DE-Queen Anne's MD-Caroline MD-Kent MD-
344 PM EDT Tue Aug 15 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SOUTHWESTERN NEW CASTLE...NORTHWESTERN KENT...QUEEN ANNE'S...
NORTHEASTERN CAROLINE AND KENT COUNTIES...

At 344 PM EDT, a severe thunderstorm was located over Old Town, or
near Centerville, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Dover, Centerville, Smyrna, Chestertown, Centreville, Camden,
Clayton, Rock Hall, Church Hill, Millington, Sudlersville, Betterton,
Goldsboro, Woodside, Viola, Hartly, Old Town, Newtown, Hazlettville
and Morgnec.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3904 7631 3898 7628 3897 7622 3900 7617
      3903 7624 3909 7623 3917 7628 3926 7622
      3929 7617 3932 7618 3933 7614 3937 7611
      3936 7588 3938 7582 3938 7577 3940 7577
      3941 7566 3903 7553 3895 7633
TIME...MOT...LOC 1944Z 253DEG 41KT 3913 7613 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLB

155 
WWUS51 KPHI 152004
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
404 PM EDT Tue Aug 15 2023

DEC001-003-MDC011-029-035-152030-
/O.CON.KPHI.SV.W.0297.000000T0000Z-230815T2030Z/
New Castle DE-Kent DE-Queen Anne's MD-Caroline MD-Kent MD-
404 PM EDT Tue Aug 15 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SOUTHWESTERN NEW CASTLE...NORTHWESTERN KENT...QUEEN ANNE'S...
NORTHEASTERN CAROLINE AND KENT COUNTIES...

At 404 PM EDT, a severe thunderstorm was located over Sudlersville,
or 15 miles northeast of Centerville, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Dover, Centerville, Smyrna, Chestertown, Centreville, Camden,
Clayton, Church Hill, Millington, Sudlersville, Goldsboro, Woodside,
Viola, Hartly, Old Town, Hazlettville, Morgnec, Delaney Corner,
Crumpton and Sandtown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 3900 7617 3909 7622 3922 7625 3922 7624
      3932 7608 3936 7588 3938 7582 3938 7577
      3940 7577 3941 7566 3903 7553 3897 7615
TIME...MOT...LOC 2004Z 253DEG 41KT 3920 7585 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLB

319 
WWUS51 KPHI 152015
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
415 PM EDT Tue Aug 15 2023

DEC001-003-MDC011-029-035-152030-
/O.CON.KPHI.SV.W.0297.000000T0000Z-230815T2030Z/
New Castle DE-Kent DE-Queen Anne's MD-Caroline MD-Kent MD-
415 PM EDT Tue Aug 15 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SOUTHWESTERN NEW CASTLE...NORTHWESTERN KENT...QUEEN ANNE'S...
NORTHEASTERN CAROLINE AND NORTHEASTERN KENT COUNTIES...

At 414 PM EDT, a severe thunderstorm was located near Hartly, or 10
miles northwest of Dover, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Centerville, Smyrna, Chestertown, Centreville, Camden, Clayton,
Church Hill, Millington, Sudlersville, Goldsboro, Woodside, Viola,
Hartly, Old Town, Hazlettville, Morgnec, Delaney Corner, Crumpton,
Sandtown and Green Spring.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3926 7615 3933 7591 3938 7565 3903 7553
      3898 7609
TIME...MOT...LOC 2014Z 253DEG 41KT 3924 7570 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLB

147 
WWUS51 KPHI 152026
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
426 PM EDT Tue Aug 15 2023

DEC001-003-MDC011-029-035-152036-
/O.EXP.KPHI.SV.W.0297.000000T0000Z-230815T2030Z/
New Castle DE-Kent DE-Queen Anne's MD-Caroline MD-Kent MD-
426 PM EDT Tue Aug 15 2023

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NEW CASTLE...
NORTHWESTERN KENT...QUEEN ANNE'S...NORTHEASTERN CAROLINE AND
NORTHEASTERN KENT COUNTIES WILL EXPIRE AT 430 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central and northern Delaware...and eastern and northeastern
Maryland.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.

LAT...LON 3926 7615 3933 7591 3938 7565 3903 7553
      3898 7609
TIME...MOT...LOC 2026Z 253DEG 41KT 3927 7556 

$$

MLB

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 15, 3:11 PM EDT, 29 minutes earlier.

Area forecast discussion, Aug 15, 3:11 PM EDT, 29 minutes before

Area Forecast Discussion
National Weather Service Mount Holly NJ
311 PM EDT Tue Aug 15 2023

.SYNOPSIS...
A cold front will continue to cross the region tonight. High
pressure builds in for Wednesday and Thursday. Another cold front is
scheduled to move through the region Friday. High pressure to build
in and hold firm for the weekend.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
This evening...Severe thunderstorm Watch is in effect until 900
PM for southern/central NJ, metro Philadelphia and our Delmarva
counties. These outlined areas have heated up greatly so far
today while the northern areas have remain mostly cloudy. The
decent CAPE values and good shear should promote tstms which
will move mostly W to E across the region this evening. Damaging
winds and hail are possible with a small possibility of a
tornado too. The cells appear to be moving at a decent clip so
far, so the flooding threat looks lower than past events. Still
some localized issues possible however. Pay attention to
updates/warnings over the next several hours.

Tonight...After the severe weather threat ends, low level
moisture and weak winds will lead to times of light showers and
fog overnight. Conditions will be lower in areas that receive
rains this evening. Lows will be in the mid/upper 60s mostly.

Wednesday...The front and weak low pressure area will have
moved offshore by morning, but there isn't a strong push of
drier air behind it. The upper trough lingers across the area.
Overall, precipitation coverage will decrease later tonight and
there isn't much forcing for rains on Wednesday. We'll have a
dry fcst attm but clouds and some morning fog are expected.
After low clouds diminish, partly sunny skies and warm/humid
conditions expected. Highs will be in the mid 80s most spots and
dew points a bit drier than today, but still in the upper
60s/low 70s most areas.

&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
Brief upper height rises occur Wednesday night into early Thursday
ahead of an approaching deep upper trough. A cold front will remain
stalled out off the coast while a surface low tries to develop along
it off to our southeast. Some vorticity advection will slide through
while we remain between two systems, and a few showers may try to
sneak on shore across the southern half of NJ as the stalled front
pushes back northwest as a warm front, and also further northwest
into the Poconos. Included some slight chance mentions of precip for
these areas on Thursday afternoon but don't expect coverage to be
all that widespread. Highs Thursday will be in the mid to upper 80s
and southerly flow will hold dew points in the low 70s, so it will
still feel quite muggy.

The better chance (though still relatively low) for precip comes
overnight Thursday into Friday morning as a cold front extending
south from a low across Ontario passes. Most guidance has it
arriving in the later overnight hours Thursday night, though the NAM
holds it back until later on Friday morning. Either way, despite the
higher dew points, not expecting any severe weather with this
frontal passage with the unfavorable overnight timing. Guidance
isn't all that excited about overall precip coverage either, so
doesn't appear that this will be a significant widespread rain with
the front. Lows should dip into the upper 60s/low 70s on Thursday
night provided the timing of the front doesn't speed up at all.

Into Friday, drier and cooler air works in (dew points may even drop
to the 50s by afternoon) with northwesterly flow. It will likely be
a bit gusty in the afternoon as a somewhat deep and dry boundary
layer will be able to tap into 20-30 knots winds around 850 mb, and
this will also aid in mixing out dew points as well. Some lingering
cloud coverage in the morning will erode for the afternoon as broad
high pressure builds across the Ohio Valley and will dominate the
pattern for the rest of the day Friday and into the weekend as well.
Highs will be cooler on Friday with readings in the low to mid
80s.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
In the upper levels, the long term period will look to begin Friday
night with a trough just north of northeast CONUS and a ridge over
the central CONUS. With time, the trough will push eastward as the
ridge builds and becomes a large and dominate feature over the
central CONUS. There is overwhelming support among the ensembles and
deterministic guidance that this large ridge will hold firm for the
long term; the period should be relatively quite weather wise for
the most part.

At the surface level, this upper level pattern will correspond to
high pressure building in Friday night and holding strong influence
over the region for the weekend and thereafter. The surface
high will look to migrate eastward some with time, possibly
sagging southward some for the Sunday through Monday time frame.
This may allow for some shortwave energy to migrate and
penetrate over the region, but for now no precipitation is
anticipated as the upper level ridge and surface high pressure
hold firm.

No PoPs are included throughout the long term period forecast today!
Temperatures will look to run right around average Saturday and
Sunday, perhaps slightly above average for Monday and Tuesday.

&&

.AVIATION /19Z TUESDAY THROUGH SUNDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

Thru the evening...Scattered showers/tstms expected mostly
Delaware Valley and south NJ sites. Lower (non-zero) changes for
KRDG/KABE. IFR possible in tstms if over terminal. Mostly VFR
outside of rains. West to Northwest winds around 10 knots. Low-
medium confid.

Overnight...Once the showers/tstms end across the area, there
will be plenty of low level moisture across the area. Low CIGS
and fog are probable but the degree of how much it will affect
flight conditions is a challenge. Winds will become N or NW
overnight. Medium confid.

Wednesday...Low clouds and fog may be slow to diminish, so
reduced CIGS/VSBYS possible until 13Z/14Z. After that, VFR
should prevail for the rest of the day. Winds will be West to
Southwest at 5 to 10 knots much of the time. Medium confid.

Outlook...

Thursday...Predominantly VFR. Scattered showers may result in brief
sub-VFR restrictions in the late afternoon into the evening.
Southerly wind around 10 knots. Moderate confidence.

Friday...Predominantly VFR. More scattered showers may again result
in brief sub-VFR restrictions mainly in the morning hours. Westerly
wind increasing to 10-15 knots with gusts to 20 knots. Moderate
confidence.

Friday night thru Sunday...VFR with mainly clear skies. High
confidence.

&&

.MARINE...
Scattered showers and tstms will be across the waters for the rest
of the afternoon and into the evening as a front and weak low
pressure move through. Behind the front/low winds will shift around
to N or NW later on. Overall, winds and seas will be below SCA
levels but locally higher winds and seas in and near tstms are
always a hazard. Fair weather is expected for Wednesday.

Outlook...

Thursday...No marine headlines expected. Southeasterly wind around
10 knots. Seas 2-3 feet.

Friday...Small Craft Advisory conditions possible. Southwesterly
wind 10-15 knots with gusts to 20 knots. Seas 4-5 feet.

Friday night...Conditions are forecast to be just below SCA
criteria. Seas mainly 3 to 4 ft with frequent gusts near 20 kts.

Saturday through Sunday...No headlines expected.

Rip currents...

A south to southwest wind around 10 MPH is anticipated for
today along the coasts of Delaware and New Jersey. Breaking
waves should be around 2 feet with a long period (around 10
seconds) east southeast swell. The expected conditions suggest
that there will be a LOW risk for the development of rip
currents.

A variable wind 5 to 10 MPH on Wednesday morning is expected to
become onshore around 10 MPH on Wednesday afternoon. Breaking
waves are forecast to be 1 to 2 feet with a medium period
southeast to south swell. There is again a LOW risk of rip
currents.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.

&&

SYNOPSIS...Wunderlin
NEAR TERM...OHara
SHORT TERM...Brudy
LONG TERM...Wunderlin
AVIATION...Brudy/OHara/Wunderlin
MARINE...Brudy/OHara/Wunderlin

Hazardous weather outlook, Aug 15, 11:14 AM EDT, 4 hours 26 minutes before

Hazardous Weather Outlook
National Weather Service Mount Holly NJ
1114 AM EDT Tue Aug 15 2023

DEZ001-161514-
New Castle-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

DEZ002-161514-
Kent-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

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.

DEZ003-161514-
Inland Sussex-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

DEZ004-161514-
Delaware Beaches-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

PAZ054-161514-
Carbon-
1114 AM EDT Tue Aug 15 2023

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.

PAZ055-161514-
Monroe-
1114 AM EDT Tue Aug 15 2023

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.

PAZ060-161514-
Berks-
1114 AM EDT Tue Aug 15 2023

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.

PAZ061-161514-
Lehigh-
1114 AM EDT Tue Aug 15 2023

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.

PAZ062-161514-
Northampton-
1114 AM EDT Tue Aug 15 2023

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.

PAZ070-161514-
Delaware-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

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.

PAZ071-161514-
Philadelphia-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

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.

PAZ101-161514-
Western Chester-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

PAZ102-161514-
Eastern Chester-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

PAZ103-161514-
Western Montgomery-
1114 AM EDT Tue Aug 15 2023

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.

PAZ104-161514-
Eastern Montgomery-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

PAZ105-161514-
Upper Bucks-
1114 AM EDT Tue Aug 15 2023

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.

PAZ106-161514-
Lower Bucks-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ001-161514-
Sussex-
1114 AM EDT Tue Aug 15 2023

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.

NJZ007-161514-
Warren-
1114 AM EDT Tue Aug 15 2023

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.

NJZ008-161514-
Morris-
1114 AM EDT Tue Aug 15 2023

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.

NJZ009-161514-
Hunterdon-
1114 AM EDT Tue Aug 15 2023

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.

NJZ010-161514-
Somerset-
1114 AM EDT Tue Aug 15 2023

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.

NJZ012-161514-
Middlesex-
1114 AM EDT Tue Aug 15 2023

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.

NJZ013-161514-
Western Monmouth-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ014-161514-
Eastern Monmouth-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ015-161514-
Mercer-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ016-161514-
Salem-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ017-161514-
Gloucester-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ018-161514-
Camden-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ019-161514-
Northwestern Burlington-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ020-161514-
Ocean-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ021-161514-
Cumberland-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ022-161514-
Atlantic-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ023-161514-
Cape May-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Cape May County excluding the
Atlantic coast in New Jersey.

.DAY ONE...Through tonight.

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.

NJZ024-161514-
Atlantic Coastal Cape May-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ025-161514-
Coastal Atlantic-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ026-161514-
Coastal Ocean-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

NJZ027-161514-
Southeastern Burlington-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

MDZ012-161514-
Kent MD-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

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.

MDZ015-161514-
Queen Annes-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

MDZ019-161514-
Talbot-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

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.

MDZ020-161514-
Caroline-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

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.

ANZ430-161514-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

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.

ANZ431-161514-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

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.

ANZ450-161514-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

ANZ451-161514-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

ANZ452-161514-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

ANZ453-161514-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

ANZ454-161514-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
1114 AM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for the Atlantic coastal waters
adjacent to the mouth of Delaware Bay out 20 nm.

.DAY ONE...Through tonight.

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.

ANZ455-161514-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
1114 AM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

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.

In the hours before

Special weather statement, Aug 15, 3:36 PM EDT, 4 minutes before

Special Weather Statement
National Weather Service Mount Holly NJ
336 PM EDT Tue Aug 15 2023

PAZ060-152000-
Berks PA-
336 PM EDT Tue Aug 15 2023

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

At 335 PM EDT, Doppler radar was tracking a strong thunderstorm near
Myerstown, moving east at 35 mph.

HAZARD...Wind gusts up to 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, Womelsdorf, Robesonia, Leesport,
Shoemakersville, Bernville, Strausstown, Fairview Hgts, Spring Ridge
and Centerport.

This includes Interstate 78 in Pennsylvania near mile marker 8, and
between mile markers 10 and 32.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4052 7634 4052 7625 4056 7609 4058 7606
      4057 7602 4063 7600 4064 7597 4034 7592
      4036 7622 4047 7640 4050 7640
TIME...MOT...LOC 1935Z 264DEG 29KT 4047 7631

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

MLB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 8:04 PM EDT	Special Weather Statement	PHI	Caroline	26 min
Aug 15, 5:00 PM EDT	Severe Thunderstorm Warning	PHI	Caroline	45 min
Aug 15, 5:56 PM EDT	Special Weather Statement	PHI	Caroline	34 min
Aug 15, 4:25 PM EDT	Special Weather Statement	PHI	Kent	35 min
Aug 15, 6:33 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	27 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2023 Severe Thunderstorm Warnings in Delaware, 2023 Every severe thunderstorm warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.