Delaware, 2023

Damaging Wind in Delaware, August 15, 2023

August 15, 2023 · NWS PHI · 1 event in 1 county or zone

A few strong to severe thunderstorms moved through Delaware on the afternoon of August 15th, producing damaging wind gusts.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PHI wrote it up.

A few strong to severe thunderstorms moved through Delaware on the afternoon of August 15th, producing damaging wind gusts.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Aug 15, 2:11 PM EST, 2 hours 15 minutes earlier.

Area forecast discussion, Aug 15, 2:11 PM EST, 2 hours 15 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, 3:58 PM EST, 28 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0458 PM EDT Tue Aug 15 2023

DEZ001-162058-
New Castle-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

DEZ002-162058-
Kent-
0458 PM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

DEZ003-162058-
Inland Sussex-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

DEZ004-162058-
Delaware Beaches-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

PAZ054-162058-
Carbon-
0458 PM 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.

PAZ055-162058-
Monroe-
0458 PM 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.

PAZ060-162058-
Berks-
0458 PM 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.

PAZ061-162058-
Lehigh-
0458 PM 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.

PAZ062-162058-
Northampton-
0458 PM 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.

PAZ070-162058-
Delaware-
0458 PM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

PAZ071-162058-
Philadelphia-
0458 PM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

PAZ101-162058-
Western Chester-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

PAZ102-162058-
Eastern Chester-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

PAZ103-162058-
Western Montgomery-
0458 PM 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.

PAZ104-162058-
Eastern Montgomery-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

PAZ105-162058-
Upper Bucks-
0458 PM 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.

PAZ106-162058-
Lower Bucks-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ001-162058-
Sussex-
0458 PM 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.

NJZ007-162058-
Warren-
0458 PM 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.

NJZ008-162058-
Morris-
0458 PM 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.

NJZ009-162058-
Hunterdon-
0458 PM 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.

NJZ010-162058-
Somerset-
0458 PM 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.

NJZ012-162058-
Middlesex-
0458 PM 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.

NJZ013-162058-
Western Monmouth-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ014-162058-
Eastern Monmouth-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ015-162058-
Mercer-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ016-162058-
Salem-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ017-162058-
Gloucester-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ018-162058-
Camden-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ019-162058-
Northwestern Burlington-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ020-162058-
Ocean-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ021-162058-
Cumberland-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ022-162058-
Atlantic-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ023-162058-
Cape May-
0458 PM 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.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ024-162058-
Atlantic Coastal Cape May-
0458 PM 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.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ025-162058-
Coastal Atlantic-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ026-162058-
Coastal Ocean-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

NJZ027-162058-
Southeastern Burlington-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

MDZ012-162058-
Kent MD-
0458 PM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

MDZ015-162058-
Queen Annes-
0458 PM EDT Tue Aug 15 2023

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

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

MDZ019-162058-
Talbot-
0458 PM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Talbot County in Maryland.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

MDZ020-162058-
Caroline-
0458 PM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for Caroline County in Maryland.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

ANZ430-162058-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0458 PM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for upper Delaware Bay.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

ANZ431-162058-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0458 PM EDT Tue Aug 15 2023

This Hazardous Weather Outlook is for lower Delaware Bay.

.DAY ONE...Through tonight.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

ANZ450-162058-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0458 PM 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.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

ANZ451-162058-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0458 PM 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.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

ANZ452-162058-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0458 PM 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.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

ANZ453-162058-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0458 PM 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.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

ANZ454-162058-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0458 PM 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.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

ANZ455-162058-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0458 PM 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.

Scattered severe thunderstorms are possible.

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

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Aug 15, 2:36 PM EST, 1 hour 50 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
Special weather statement, Aug 15, 3:25 PM EST, 1 hour 1 minute before
Special Weather Statement
National Weather Service Mount Holly NJ
425 PM EDT Tue Aug 15 2023

DEZ002-MDZ015-020-152100-
Kent DE-Queen Anne's MD-Caroline MD-
425 PM EDT Tue Aug 15 2023

...A strong thunderstorm will impact portions of Kent, northeastern
Queen Anne's and northeastern Caroline Counties through 500 PM EDT...

At 425 PM EDT, Doppler radar was tracking a strong thunderstorm over
Goldsboro, or 15 miles southwest of Dover, moving east at 45 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Dover, Camden, Greensboro, Cheswold, Sudlersville, Bowers, Goldsboro,
Woodside, Viola, Hartly, Rising Sun-Lebanon, Hazlettville, Dover Base
Housing, Dover Speedway, Sandtown, Rising Sun, Big Stone Beach,
Wyoming, Felton and Frederica.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

&&

LAT...LON 3928 7538 3895 7530 3897 7586 3919 7588
TIME...MOT...LOC 2025Z 268DEG 37KT 3907 7578

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

MLB
Special weather statement, Aug 15, 3:52 PM EST, 34 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
452 PM EDT Tue Aug 15 2023

PAZ060>062-103-105-152115-
Upper Bucks PA-Lehigh PA-Western Montgomery PA-Northampton PA-
Berks PA-
452 PM EDT Tue Aug 15 2023

...A strong thunderstorm will impact portions of eastern Berks,
southeastern Lehigh, northwestern Bucks and southwestern Northampton
Counties through 515 PM EDT...

At 452 PM EDT, Doppler radar was tracking a strong thunderstorm over
Ancient Oaks, or 7 miles southwest of Allentown, moving east at 40
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...
Allentown, Easton, Bethlehem, Emmaus, Quakertown, Wilson, Bedminster,
Hellertown, East Greenville, Ferndale, West Easton, Bally,
Riegelsville, Steuben, Glendon, Pleasant Valley, Zionsville, Ancient
Oaks, Lehigh University and Ottsville.

This includes the following highways...
 Northeast Extension between mile markers 42 and 59.
 Interstate 78 in Pennsylvania between mile markers 46 and 75.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
southeastern Pennsylvania.

&&

LAT...LON 4058 7572 4074 7527 4042 7512 4040 7563
TIME...MOT...LOC 2052Z 257DEG 34KT 4051 7556

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

MLB

The radar

The Dover AFB radar (KDOX), 32 km away, was scanning. The volume nearest the first event began at 21:24 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Sussex

When
August 15, 4:26 PM EST
Where
Sussex County, 0.69 mi N of Laurel
Measured
50 kt (58 mph) estimated gust
Reported by
State Official
Coordinates
38.560, -75.570

Report of trees down in wires. Time estimated via radar.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Delaware in 2023Every state in 2023This day in weather historyWarnings in Delaware, August 2023

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1135287.