Alert archive / Delaware / Special Weather Statements in 2023

Special Weather Statement, NWS Philadelphia/Mount Holly

July 20, 2023Kent County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 20, 2023, 4:23 PM EDT for Kent County, Delaware. It was in force for 37 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
Jul 20, 2023, 4:23 PM EDT (20:23 UTC)
Expired
Jul 20, 2023, 5:00 PM EDT
In force
37 min
Issued by
NWS Philadelphia/Mount Holly
Hail
0.00 in
Wind
40

County Kent County, DE

The radar

The Dover AFB radar (KDOX), 57 km from the middle of the area, began a volume at 20:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.4 hours before the alert went out and 156 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, Wallops Is Stn, VA at 12:00Z on 2023-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1166 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 12:00Z on 2023-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.19395878Sfc1 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
1166 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
682 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

As transmitted.

476 
WWUS81 KPHI 202023
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
423 PM EDT Thu Jul 20 2023
 
DEZ001-002-202100-
Kent DE-New Castle DE-
423 PM EDT Thu Jul 20 2023

...A strong thunderstorm will impact portions of southwestern New
Castle and northeastern Kent Counties through 500 PM EDT...

At 423 PM EDT, Doppler radar was tracking a strong thunderstorm over
Smyrna, or 11 miles north of Dover, moving southeast at 10 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, Smyrna, Clayton, Cheswold, Rising Sun-Lebanon, Woodland Beach,
Green Spring, Rising Sun, Dover Base Housing, Dover Speedway,
Townsend, Little Creek, Leipsic, Chambersville, Kent Acres, Highland
Acres and Rodney Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3942 7556 3931 7531 3929 7529 3909 7550
      3938 7577 3939 7577
TIME...MOT...LOC 2023Z 309DEG 9KT 3931 7557 

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

$$

Hoeflich

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 20, 4:11 PM EDT, 12 minutes earlier.

Area forecast discussion, Jul 20, 4:11 PM EDT, 12 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
411 PM EDT Thu Jul 20 2023

.SYNOPSIS...
A stationary front remains over the area through today
before returning back north as a warm front tonight. A cold front
then passes through the region on Friday. High pressure builds in
from the west on Saturday then weakens and moves offshore Sunday
night. A few weak disturbances may affect us early next week.

&&

.NEAR TERM /THROUGH FRIDAY/...
The main story in the near term remains the potentially
hazardous weather overnight into Friday. As of around 4 PM
Thursday, the front remains stationary across the southern part
of the area with weak, transient high pressure still to our
north. Temps have risen into the 80s across most of the region
with some upper 70s where showers and storms have developed.
North of the front, over most of PA and NJ, dew points are in
the upper 60s while they are still mainly in the low to mid 70s
across southern New Jersey and Delmarva.

We continue to see isolated to scattered convection, mostly near
and south of the I-95 urban corridor. These are largely the
result of diurnal heating and low-level convergence along the
boundary. Most of this convection should once again dissipate as
we lose daytime heating with the approach to sunset. This will
result in a lull in the activity until later in the overnight
hours.

Our attention turns to our west as a developing low continues
moving eastward across the lower Great Lakes driven by a potent
disturbance in the upper levels that will start to take on a
neutral to negative tilt. As the system approaches, warm front
will continue to lift back northward into the CWA. Main concern
looks to be after midnight as strong convection starts to
approach from central PA and upstate NY. The overall trend in
the latest set of CAM guidance has been for this to arrive
earlier. However, it should be noted that there are still
differences in the models regarding the timing, strength, and
evolution of this system and its associated convection. Most
likely scenario though is that storms begin moving in from the
west over eastern PA beginning roughly in the 2-4AM
timeframe....likely in the form of clusters or a squall line.
Concern is that, as already alluded to, dynamics with this
system will be strong with NE PA becoming situated between the
right entrance region of an upper jet to the north and the left
exit region of an upper jet approaching from the west with 500mb
12 hour height falls of 40-60+ meters. Deep layer shear in this
area should also be around 30 to 35+ knots. Limiting factor for
severe weather though will be timing at night which could limit
the amount of instability and also result in more of it not
being surface based.

Still though, think that the strong dynamics could be enough to
overcome this and the SPC has the area most northwestern
portion of our area in a SLIGHT risk with areas slightly
southeast that are near and immediately northwest of the I-95
corridor remaining in a MARGINAL risk for severe weather for the
overnight period (to 12z Friday). The primary threat with these
potentially severe storms would damaging straight line wind
gusts. However, model soundings do indicate some significant
veering of the low-level winds resulting in curved hodographs
although the speeds are bit slow. This does indicate though that
the threat for a weak tornado or two, particularly if embedded
in a QLCS line, cannot be completely ruled out. Additionally,
PWATs will also be around 1.75 to 2.0 inches so this same area
will also be at risk for excessive rainfall and localized flash
flooding by the latter part of the overnight period as the
convection moves in and could produce very heavy downpours.

By the time we get to early Friday morning, storms will have moved
in with coverage potentially be relatively widespread for areas near
and N/W of the I-95 corridor. By this time, the strongest upper
level forcing should be just moving through with low pressure
centered near Lake Ontario and the system's triple point over
eastern PA with the warm front extending eastward through NJ and the
cold front extending S/W into Maryland and Virginia. The overall
evolution of the convection becomes a bit more uncertain beyond this
time as initial shortwave aloft swings through to the north and east
but the main upper level trough only chugs slowly east across
southern Ontario into upstate NY. This means that the low at the
surface and its associated fronts should be slow to move east
as well. The upshot of this is that stormy weather is likely to
continue through at least the first half of Friday as initial
convection could even start to train for a time over eastern PA
into northern NJ. Even as this first round should be moving out
by around midday there could be more storms that develop in the
afternoon. It's uncertain though how much instability there will
be due to AM storms so the SPC keeps area in a MARGINAL risk
for severe weather for Day 2 (starting 12z Friday) with a
MARGINAL threat for excessive rain and flooding/ flash flooding
also be indicated by WPC. By the time the system moves through
by Friday evening with winds turning westerly and conditions
drying out, think much of the area could see 1.0 to 2.0 inches
of rain with locally higher amounts. Heaviest amounts should be
in the north. Again, still some uncertainty on this so forecast
will continue to be refined through the day today. The
showers/storms should help keep temps cooler for Friday with
highs mostly in the low to mid 80s except some upper 70s over
the higher terrain where clouds are most likely to remain in
place through the day.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/...
Cold front will be rapidly pushing off the coast Friday evening.
Still a little uncertainty in timing so held some chance pops early
but back them off below slight chance after 00Z. Otherwise,
clearing, cooler and drying out Friday night. Lows overall will drop
3-5 degrees compared to Thursday night, with 60s across most of the
region.

High pressure slowly builds in Saturday and Saturday night. We'll
see plenty of sunshine, which will help allow temps to rise back to
near the same readings we're expecting Friday (mid-80s), but dew
points will be 5-10 degrees lower, mostly in the low-mid 60s. This
will result in a considerably more comfortable day compared to
Friday.

A weak secondary front passes Saturday evening, ushering in slightly
cooler and drier air. This will help lows drop a few more degrees
compared to Friday night, settling down into the upper 50s to low
60s overall, except still mid-upper 60s in the urban centers and
near the waters. Otherwise, clear skies and light winds will prevail.

Sunday will see continued mostly sunny skies as high pressure
remains in overall control, thought it will be shifting off-shore
with warm advection just beginning later in the day. Thus, expect
highs to nudge back up a degree or two compared to Saturday, but dew
points will do the opposite, so overall, another nice, dry day.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
High pressure will be firmly offshore by Monday, with a return
southerly flow starting to nudge dew points back up, though they
still remain in the 60s. Warmth will build ever so slightly,
tempered by the potential for some afternoon clouds or even a stray
shower or storm as an upper level shortwave moves toward us, but
overall still dry. This pattern more or less continues Tuesday, with
some morning sun followed by afternoon clouds and a stray shower/t-
storm with another upper-level disturbance, but more dry than not
for sure.

By Wednesday, a warm front starts to lift back north of the region,
decreasing the threat of isolated showers/storms as a ridge builds
toward us, but also allowing temps and dew points to creep back up a
few more degrees. Still not quite oppressive for this time of year,
but more uncomfortable than the prior two days, with dew points
mostly in the upper 60s and temps rising toward the upper 80s.
Temperatures warm even further Thursday with afternoon highs in the
low 90s for most and dew points creeping back into the low 70s.

&&

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

Through today....Mainly VFR conditions today. A few isolated
showers/storms possible in the afternoon that could cause brief
restrictions so will handle these with VCTS/amendments as any
approach the terminals. Winds mainly southeast 5 to 10 knots
through the evening. Moderate confidence.

Tonight...Mainly VFR this evening as initial showers and storms
dissipate. Next round of showers/storms begin to move in from
the west most likely after 6z with lowering cigs as well. This
should result in sub VFR conditions occuring at all sites by
around 09Z. Winds mainly southeast 5 to 10 knots. Moderate
confidence.

Friday...Sub-VFR in SHRA/TSRA in the morning, then another
round of SHRA/TSRA with sub-VFR conditions possible in the
afternoon. South winds 5 to 10 kt, becoming southwest to
westerly by late day. Moderate confidence in morning
restrictions, low confidence for the afternoon.

Outlook...

Saturday through Sunday night...VFR. W to NW winds 10 to 15 kt
during the day, then LGT/VRB at night. High confidence.

Monday through Tuesday...VFR overall. Scattered afternoon SHRA/TSRA
possible. S winds 5 to 10 kt. Moderate confidence.

Wednesday...VFR. SW winds 5 to 10 kts. Moderate confidence.

&&

.MARINE...
Sub-advisory conditions on the waters through today with winds
around 10 kts easterly becoming southeasterly tonight. Waves
2-4 ft. A round of showers and thunderstorms with gusty winds
and heavy rain possible late tonight and Friday morning, then
again late Friday afternoon and evening.

Outlook...

Friday night through Wednesday...A prolonged period of sub-SCA
conditions anticipated. No chance of showers or storms over the
weekend, with only a slight chance Monday and Tuesday with mostly
dry weather expected Wednesday. Winds will mostly be west to
northwest 10-15 kts over the weekend, becoming southeasterly 10-15
kts Monday and Tuesday then southwesterly on Wednesday. Seas 2-4 ft.

Rip Currents...

A light northeast wind this morning is forecast to become southeast
by the evening. A southerly wind on Friday is expected to increase
to 10-15 MPH. Breaking waves are anticipated to be around 2 feet
along the coasts of Delaware and New Jersey both today and on
Friday. There should be a medium period east to southeast swell,
with an underlying long period (around 13 seconds) swell from the
same directions.

Due to the light wind and relatively gentle wave action, we will
carry a LOW risk of rip currents for both days, even with the
presence of the underlying long period swell.

&&

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

&&

SYNOPSIS...MJL
NEAR TERM...AKL/Fitzsimmons
SHORT TERM...MJL
LONG TERM...MJL
AVIATION...AKL/Fitzsimmons/MJL
MARINE...AKL/Fitzsimmons/MJL
Hazardous weather outlook, Jul 20, 2:46 PM EDT, 1 hour 37 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
0246 PM EDT Thu Jul 20 2023

DEZ001-211846-
New Castle-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

DEZ002-211846-
Kent-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Kent County in Delaware.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

DEZ003-211846-
Inland Sussex-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

DEZ004-211846-
Delaware Beaches-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ054-211846-
Carbon-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Carbon 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...Friday through Wednesday.

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.

PAZ055-211846-
Monroe-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Monroe 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...Friday through Wednesday.

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.

PAZ060-211846-
Berks-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Berks 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...Friday through Wednesday.

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.

PAZ061-211846-
Lehigh-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Lehigh 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...Friday through Wednesday.

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.

PAZ062-211846-
Northampton-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Northampton 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...Friday through Wednesday.

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.

PAZ070-211846-
Delaware-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Delaware County in Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ071-211846-
Philadelphia-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Philadelphia County in
Pennsylvania.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ101-211846-
Western Chester-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

PAZ102-211846-
Eastern Chester-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

PAZ103-211846-
Western Montgomery-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ104-211846-
Eastern Montgomery-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

PAZ105-211846-
Upper Bucks-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

PAZ106-211846-
Lower Bucks-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ001-211846-
Sussex-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Sussex 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...Friday through Wednesday.

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.

NJZ007-211846-
Warren-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Warren 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...Friday through Wednesday.

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.

NJZ008-211846-
Morris-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ009-211846-
Hunterdon-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ010-211846-
Somerset-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ012-211846-
Middlesex-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ013-211846-
Western Monmouth-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ014-211846-
Eastern Monmouth-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ015-211846-
Mercer-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ016-211846-
Salem-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ017-211846-
Gloucester-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ018-211846-
Camden-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ019-211846-
Northwestern Burlington-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ020-211846-
Ocean-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ021-211846-
Cumberland-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ022-211846-
Atlantic-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ023-211846-
Cape May-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ024-211846-
Atlantic Coastal Cape May-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ025-211846-
Coastal Atlantic-
0246 PM EDT Thu Jul 20 2023

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

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

NJZ026-211846-
Coastal Ocean-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

NJZ027-211846-
Southeastern Burlington-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

MDZ012-211846-
Kent MD-
0246 PM EDT Thu Jul 20 2023

This Hazardous Weather Outlook is for Kent County in Maryland.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

MDZ015-211846-
Queen Annes-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

MDZ019-211846-
Talbot-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

MDZ020-211846-
Caroline-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

ANZ430-211846-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

ANZ431-211846-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

ANZ450-211846-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

ANZ451-211846-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

ANZ452-211846-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

ANZ453-211846-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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.

ANZ454-211846-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
0246 PM EDT Thu Jul 20 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.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

ANZ455-211846-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
0246 PM EDT Thu Jul 20 2023

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...Friday through Wednesday.

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, Jul 20, 2:09 PM EDT, 2 hours 14 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
209 PM EDT Thu Jul 20 2023

DEZ001-201845-
New Castle DE-
209 PM EDT Thu Jul 20 2023

...A strong thunderstorm will impact portions of northwestern New
Castle County through 245 PM EDT...

At 208 PM EDT, Doppler radar was tracking a strong thunderstorm near
Bear, or near Newark, moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and penny 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...
Wilmington, Newark, Elsmere, New Castle, Delaware City, Newport,
Saint Georges, Greenville, Stanton, North Star, Glasgow, Bear,
Wilmington Manor, Pike Creek, Hockessin and Brookside.

This includes Interstate 95 in Delaware between mile markers 2 and
13.

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.

&&

LAT...LON 3975 7576 3976 7575 3981 7556 3953 7558
      3958 7577
TIME...MOT...LOC 1808Z 272DEG 16KT 3967 7567

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

MPS
Special weather statement, Jul 20, 2:48 PM EDT, 1 hour 35 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
248 PM EDT Thu Jul 20 2023

DEZ001-201915-
New Castle DE-
248 PM EDT Thu Jul 20 2023

...A strong thunderstorm will impact portions of west central New
Castle County through 315 PM EDT...

At 247 PM EDT, Doppler radar was tracking a strong thunderstorm over
Saint Georges, or 8 miles southeast of Newark, moving south at 5 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Delaware City, Saint Georges, Glasgow, Bear and Mount Pleasant.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

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.

&&

LAT...LON 3966 7561 3956 7551 3956 7552 3954 7554
      3954 7553 3953 7553 3949 7572 3961 7575
TIME...MOT...LOC 1847Z 337DEG 6KT 3959 7565

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

MPS
Special weather statement, Jul 20, 4:23 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
423 PM EDT Thu Jul 20 2023

DEZ001-002-202100-
Kent DE-New Castle DE-
423 PM EDT Thu Jul 20 2023

...A strong thunderstorm will impact portions of southwestern New
Castle and northeastern Kent Counties through 500 PM EDT...

At 423 PM EDT, Doppler radar was tracking a strong thunderstorm over
Smyrna, or 11 miles north of Dover, moving southeast at 10 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, Smyrna, Clayton, Cheswold, Rising Sun-Lebanon, Woodland Beach,
Green Spring, Rising Sun, Dover Base Housing, Dover Speedway,
Townsend, Little Creek, Leipsic, Chambersville, Kent Acres, Highland
Acres and Rodney Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3942 7556 3931 7531 3929 7529 3909 7550
      3938 7577 3939 7577
TIME...MOT...LOC 2023Z 309DEG 9KT 3931 7557

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

Hoeflich

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 2:11 PM EDTSpecial Marine WarningPHI49 min
Jul 20, 1:53 PM EDTSevere Thunderstorm WarningPHIChester40 min
Jul 20, 2:09 PM EDTSpecial Weather StatementPHINew Castle36 min
Jul 20, 2:37 PM EDTAreal Flood AdvisoryPHINew Castle109 min
Jul 20, 2:48 PM EDTSpecial Weather StatementPHINew Castle27 min
Jul 20, 4:27 PM EDTSpecial Weather StatementPHISussex48 min

Nearby

Special Weather Statements in Delaware, 2023Every special weather statement 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.