Alert archive / New Jersey / Special Weather Statements in 2019

Special Weather Statement, NWS Philadelphia/Mount Holly

September 4, 2019Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Sep 4, 2019, 9:56 PM EDT for Cumberland County, New Jersey. It was in force for 49 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
Sep 4, 2019, 9:56 PM EDT (01:56 UTC)
Expired
Sep 4, 2019, 10:45 PM EDT
In force
49 min
Issued by
NWS Philadelphia/Mount Holly

County Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 61 km from the middle of the area, began a volume at 01:55 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 00:00Z, 1.9 hours before the alert went out and 160 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 00:00Z on 2019-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 794 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 00:00Z on 2019-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
794 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
1117 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Sep 4, 6:40 PM EDT, 3 hours 16 minutes earlier.

Area forecast discussion, Sep 4, 6:40 PM EDT, 3 hours 16 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
640 PM EDT Wed Sep 4 2019

.SYNOPSIS...
A cold front will cross the region tonight before stalling to our
south. High pressure builds toward the Mid-Atlantic on Thursday.
Hurricane Dorian will cross eastern North Carolina on Friday before
moving quickly to the northeast and past our area Friday night. A
weak cold front will move through the region later Saturday,
followed by a return to high pressure for Sunday into the new
week.
&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
630 PM...Some storms developing near I-95 corridor and some of
these could still be strong to severe early this evening as the
front moves south. However not much developed farther north in
the area that was in the Watch so this has been cancelled.

The cold front will move SE into the Delaware Valley around
dusk then offshore NJ/DE by 10PM or so. Drier and cooler air
will arrive behind the front. Clouds will decrease late and with
the dry air, not much in the way of fog is expected overnight.
Low will drop into the low/mid 50s N/W and low/mid 60s across
srn NJ and Delmarva. Winds will shift to NW this evening behind
the front then the go N or NE towards dawn.
&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/...
The cold front will be SE of the area Thursday morning while weak
high pressure builds to the north. Hurricane Dorian will be moving
slowly N/NE along the S Carolina coast. The (thicker/lower) clouds
in advance of Dorian will be arriving across Delmarva during the
morning and into NJ/ern PA by afternoon. A slowly increasing NE
winds will also our region. A couple showers may arrive across srn
NJ and Delmarva late, so some chc pops are in the fcst for these
areas attm. It will be cool on Thursday with highs only in the
low/mid 70s. Winds will be mostly northeast at 10 to 15 mph, but
gusts around 25 mph are expected along the DE/NJ coastal areas.
&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
The main feature of this period is what will occur with Hurricane
Dorian as it makes it way up the Mid-Atlantic coastline.

Current NHC tracks Dorian through eastern North Carolina on Friday,
crossing Hatteras and then pushing up the Mid-Atlantic coast on
Friday and continuing into the North Atlantic waters on Saturday.

Based on the current forecast track, we would likely start to see
some of Dorian's rain arrive Thursday night with the bulk of the
impacts not felt until Friday. The majority of the impacts will be
along the immediate coast due to their proximity to the storm and
the further inland you go there will be less impacts. Rainfall will
be heavy at times and around 1 to 3 inches of rain may fall, with
the heaviest across southern Delaware and up along the New Jersey
coast. Winds will ramp up quickly, especially along the coast and
winds of 30 to 40 mph with gusts around 50 mph are possible, again
mainly right along the coast.

The main takeaway with Dorian is keep an eye on the forecast and
monitor the track of the storm. Impacts are closely tied to just
where the storm goes so if it stays further or closer to our area,
the impacts will change.
&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.

This evening...Scattered thunderstorms will continue to move
across the region with MVFR and psbl IFR with any tstm. Winds
will be mostly S or SW this evening and then turn W or NW once
the tstms/showers move thru. Improving conditions late.

Tonight...VFR returning to the terminals as tstms move away. NW
winds will bring in drier air overnight. After midnight, winds will
become N then NE. High clouds increasing across Delmarva and srn NJ
towards dawn.

Thursday...VFR expected. Increasing clouds from SE to NW thru the
late morning and afternoon. A few showers are possible late across
Delmarva and srn NJ. I have not included them in the 18Z tafs
however, since chance is low.

Outlook...
Thursday night and Friday...MVFR ceilings along with some
possible rain developing for a time mainly at MIV and ACY
especially on Friday, otherwise VFR ceilings. Northeast winds
5-15 knots Thursday, increasing to 10-20 knots Friday with
higher gusts especially at MIV and ACY. Winds becoming north to
northwest Friday night and diminishing.

Saturday and Sunday...VFR. Northwest winds 10 knots or less
Saturday, then light west-northwest Sunday.
&&

.MARINE...
Winds and seas slowly increasing out ahead of a cold front which
will cross the waters early tonight. Winds and seas will locally be
higher with the tstms, but overall conditions will remain below SCA
tonight. Seas on the ocean will be 3 to 4 ft. SMW may be issued for
tstms this evening. Winds will shift from SW before the front to NW
behind it. Later tonight, winds will become N.

Thursday...Sub-SCA, but winds will increase from the N then NE thru
the afternoon. Showers will arrive across the srn NJ and DE waters
late during the afternoon. Seas mostly 3 to 4 ft on the ocean.

Outlook...

Thursday night through Friday...Strong northeast winds
developing, especially Friday, with dangerous seas. Wind gusts
of 35-45 knots are probable, with these peaking during Friday.
Gusts in excess of 50 knots are possible, mainly across the
Delaware and extreme southern New Jersey coastal waters. The
winds become north and diminish during Friday night.

Saturday and Sunday...Northwest winds rapidly diminish
Saturday, then becoming southwesterly at night and Sunday.

Rip Currents...
We are expecting a somewhat chaotic swell pattern for today,
with swells arriving from the east, southeast and south. As a
result, we will carry a moderate risk for the development of
dangerous rip currents. Otherwise, there will be a southerly
wind at the beaches increasing around 15 MPH with breaking waves
around 3 feet.

At least a moderate risk for the development of dangerous rip
currents Thursday, then a high risk is anticipated for Friday as
the center of Hurricane Dorian passes by our region well
offshore. The large swells and gusty onshore winds will result
in dangerous surf and rip currents. The conditions are expected
to improve over the weekend.
&&

.TIDES/COASTAL FLOODING...
A prolonged onshore flow is expected from Thursday into Friday
night. As a result, water will build up along the coast. We may
experience some minor tidal flooding along the coasts of Delaware
and New Jersey Friday afternoon. Depending on the forward speed of
Dorian, we will need to keep an eye on Friday night's high tide and
possibly Saturday afternoon's high tide for additional minor
flooding.

&&

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

&&

Synopsis...Meola
Near Term...Fitzsimmons/O'Hara
Short Term...O'Hara
Long Term...Gorse/Meola
Aviation...Gorse/Iovino
Marine...Gorse/Iovino/Meola
Tides/Coastal Flooding...
Hazardous weather outlook, Sep 4, 6:36 PM EDT, 3 hours 20 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
636 PM EDT Wed Sep 4 2019

DEZ001-002-MDZ008-012-015-019-020-NJZ001-007>010-012-015>019-021-
PAZ054-055-060>062-070-071-101>106-052245-
New Castle-Kent-Cecil-Kent MD-Queen Annes-Talbot-Caroline-Sussex-
Warren-Morris-Hunterdon-Somerset-Middlesex-Mercer-Salem-Gloucester-
Camden-Northwestern Burlington-Cumberland-Carbon-Monroe-Berks-Lehigh-
Northampton-Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
636 PM EDT Wed Sep 4 2019

This Hazardous Weather Outlook is for central Delaware, northern
Delaware, northeast Maryland, central New Jersey, northern New
Jersey, northwest New Jersey, southern New Jersey, east central
Pennsylvania, northeast Pennsylvania and southeast Pennsylvania.

.DAY ONE...Tonight.

Some thunderstorms this evening could produce locally strong to
damaging winds.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

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-NJZ013-020-022-023-027-052245-
Inland Sussex-Western Monmouth-Ocean-Atlantic-Cape May-
Southeastern Burlington-
636 PM EDT Wed Sep 4 2019

This Hazardous Weather Outlook is for southern Delaware, central
New Jersey and southern New Jersey.

.DAY ONE...Tonight.

Some thunderstorms this evening could produce locally strong to
damaging winds.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The center of Hurricane Dorian is forecast to pass by well offshore
during Friday. Gusty onshore winds are anticipated late Thursday and
especially Friday, and some coastal flooding is possible.

.SPOTTER INFORMATION STATEMENT...

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

DEZ004-NJZ014-024>026-052245-
Delaware Beaches-Eastern Monmouth-Atlantic Coastal Cape May-
Coastal Atlantic-Coastal Ocean-
636 PM EDT Wed Sep 4 2019

This Hazardous Weather Outlook is for southern Delaware, central
New Jersey and southern New Jersey.

.DAY ONE...Tonight.

There is a moderate risk for the development of dangerous rip
currents.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The center of Hurricane Dorian is forecast to pass by well offshore
during Friday. Dangerous surf and rip currents along with strong
winds are anticipated for Thursday and especially Friday, and some
coastal flooding and beach erosion is possible.

.SPOTTER INFORMATION STATEMENT...

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

ANZ430-431-450>455-052245-
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm-
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm-
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm-
Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm-
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
636 PM EDT Wed Sep 4 2019

This Hazardous Weather Outlook is for Atlantic coastal waters and
Delaware Bay Waters.

.DAY ONE...Tonight.

Some thunderstorms this evening could produce locally strong to
damaging winds.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

The center of Hurricane Dorian is forecast to pass by well offshore
during Friday. Dangerous seas and strong winds are probable later
Thursday and especially Friday, particularly for the Atlantic
coastal water zones.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Sep 4, 7:59 PM EDT, 1 hour 57 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
759 PM EDT Wed Sep 4 2019

NJZ020-026-027-050045-
Coastal Ocean-Ocean-Southeastern Burlington-
759 PM EDT Wed Sep 4 2019

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN OCEAN AND SOUTHEASTERN
BURLINGTON COUNTIES...

At 759 PM EDT, a strong thunderstorm was located near Chatsworth, or
23 miles southwest of Toms River, moving east at 20 mph.

Wind gusts up to 50 mph and pea size hail are possible with this
storm.

Locations impacted include...
Barnegat, Shamong, Tuckerton, Wharton State Forest, Atsion,
Brookville, Warren Grove, Bass River State Forest, Chatsworth, Old
Halfway, Penn State Forest, Beach Haven West, Ocean Acres, Manahawkin
and Waretown.

This includes Garden State Parkway between mile markers 56 and 74.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3979 7418 3975 7419 3975 7420 3974 7419
      3960 7427 3961 7428 3960 7432 3973 7474
      3977 7479 3982 7475 3989 7461 3984 7414
TIME...MOT...LOC 2359Z 287DEG 19KT 3978 7456

Staarmann
Special weather statement, Sep 4, 8:04 PM EDT, 1 hour 52 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
804 PM EDT Wed Sep 4 2019

NJZ020-026-050045-
Coastal Ocean-Ocean-
804 PM EDT Wed Sep 4 2019

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL OCEAN COUNTY...

At 804 PM EDT, a strong thunderstorm was located over Bamber Lake, or
near Toms River, moving east at 20 mph.

Wind gusts up to 50 mph and pea size hail are possible with this
storm.

Locations impacted include...
Toms River, Beachwood, Seaside Heights, Holiday City-Berkeley, Bamber
Lake, Holiday City South, Pine Ridge At Crestwood, Dover Beaches
South, South Toms River, Island Heights, Silver Ridge, Crestwood
Village, Gilford Park, Holiday City, Holiday Heights and Waretown.

This includes Garden State Parkway between mile markers 72 and 83.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3980 7409 3991 7409 3990 7414 3986 7413
      3981 7417 3977 7410 3979 7414 3980 7418
      3976 7410 3975 7411 3989 7439 3999 7435
      3998 7412 3995 7411 3993 7415 3993 7412
      3992 7411 3992 7408 3998 7407
TIME...MOT...LOC 0004Z 286DEG 19KT 3991 7429

Staarmann
Special weather statement, Sep 4, 8:19 PM EDT, 1 hour 37 minutes before
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Special weather statement, Sep 4, 8:20 PM EDT, 1 hour 36 minutes before
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Special weather statement, Sep 4, 9:14 PM EDT, 42 minutes before
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Special weather statement, Sep 4, 9:56 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
956 PM EDT Wed Sep 4 2019

NJZ016-021-050245-
Salem-Cumberland-
956 PM EDT Wed Sep 4 2019

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL CUMBERLAND AND SOUTHERN
SALEM COUNTIES...

At 956 PM EDT, a strong thunderstorm was located over Newport
Meadows, or 8 miles west of Bridgeton, moving east at 20 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Vineland, Millville, Bridgeton, Laurel Lake, Greenwich, Shiloh,
Newport, Dividing Creek, Hancocks Bridge, Newport Meadows, Fairton,
Cedarville, Fortesque, South Vineland, Rosenhayn and Port Norris.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3951 7546 3945 7495 3921 7508 3921 7510
      3927 7525 3930 7525 3930 7530 3933 7532
      3935 7539 3938 7540 3940 7545 3942 7545
      3942 7547 3943 7546 3944 7549
TIME...MOT...LOC 0156Z 291DEG 17KT 3944 7538

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 4, 8:03 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester57 min
Sep 4, 8:04 PM EDTSpecial Weather StatementPHIOcean41 min
Sep 4, 8:10 PM EDTSevere Thunderstorm WarningPHIOcean23 min
Sep 4, 8:16 PM EDTSpecial Marine WarningPHI89 min
Sep 4, 8:16 PM EDTSevere Thunderstorm WarningPHICumberland, Salem59 min
Sep 4, 8:19 PM EDTSpecial Weather StatementPHICamden, Gloucester41 min
Sep 4, 8:20 PM EDTSpecial Weather StatementPHIOcean40 min
Sep 4, 8:33 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Gloucester83 min
Sep 4, 8:40 PM EDTSpecial Marine WarningPHI95 min
Sep 4, 8:54 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean81 min
Sep 4, 9:01 PM EDTSpecial Marine WarningPHI105 min
Sep 4, 9:14 PM EDTSpecial Weather StatementPHICape May, Cumberland46 min
Sep 4, 10:12 PM EDTSpecial Marine WarningPHI63 min
Sep 5, 3:32 AM EDTSmall Craft AdvisoryPHI67 hr
Sep 5, 3:44 AM EDTRip Current StatementPHIAtlantic, Cape May, Monmouth, Ocean41 hr
Sep 5, 3:20 PM EDTTropical Storm WarningPHI29 hr
Sep 5, 3:22 PM EDTHigh Surf AdvisoryPHIAtlantic, Cape May, Monmouth, Ocean42 hr
Sep 4, 8:13 PM EDTSevere Thunderstorm WarningPHIKent, New Castle62 min
Sep 4, 10:03 PM EDTSpecial Weather StatementPHIQueen Anne's42 min

Nearby

Special Weather Statements in New Jersey, 2019Every special weather statement in 2019

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.