Alert archive / New Jersey / Special Marine Warnings in 2017

Special Marine Warning 142, NWS Philadelphia/Mount Holly

October 24, 2017

NWS Philadelphia/Mount Holly issued this special marine warning at Oct 24, 2017, 5:08 PM EDT. It was in force for 67 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
Oct 24, 2017, 5:08 PM EDT (21:08 UTC)
Expired
Oct 24, 2017, 6:15 PM EDT
In force
67 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.0 in
Wind
40.0 mph

The radar

The Dover AFB radar (KDOX), 88 km from the middle of the area, began a volume at 21:11 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, 9.1 hours before the alert went out and 122 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 2017-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 520 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 2017-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 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
520 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
709 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

511 
WHUS51 KPHI 242108
SMWPHI
ANZ452>455-472-473-475-242215-
/O.NEW.KPHI.MA.W.0142.171024T2108Z-171024T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
508 PM EDT TUE OCT 24 2017

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
 
  COASTAL AND OUTER WATERS FROM LITTLE EGG INLET NJ TO FENWICK ISLAND
DE...

* UNTIL 615 PM EDT

* AT 508 PM EDT...A SHOWER WAS LOCATED 7 NM NORTHEAST OF DELAWARE
  LIGHTSHIP BUOY 44009...MOVING NORTH AT 45 KNOTS.

  HAZARD...WIND GUSTS TO 40 KNOTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND 
           SUDDENLY HIGHER WAVES. 

* LOCATIONS IMPACTED INCLUDE...
  28-MILE WRECK...FIVE FATHOMS BUOY...BUOY 2FB...BUOY 4FB...DEEPWATER
  REEF...DELAWARE LIGHTSHIP BUOY 44009 AND GREAT EGG REEF.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SAFE SHELTER...MARINERS CAN EXPECT GUSTY WINDS AND INCREASING
WAVES.

&&

LAT...LON 3834 7450 3841 7475 3931 7445 3919 7397
TIME...MOT...LOC 2108Z 202DEG 45KT 3852 7455 

HAIL...0.00IN
WIND...40KTS

$$

SFJ
3 follow-up statements
085 
FZUS71 KPHI 242123
MWSPHI

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
523 PM EDT TUE OCT 24 2017

ANZ455-242132-
/O.CAN.KPHI.MA.W.0142.000000T0000Z-171024T2215Z/
523 PM EDT TUE OCT 24 2017

...THE SPECIAL MARINE WARNING IS CANCELLED...

THE AFFECTED AREAS WERE...
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM...

  COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA AND NO LONGER 
POSES A SIGNIFICANT THREAT TO BOATERS.

LAT...LON 3845 7444 3853 7471 3931 7445 3919 7397
TIME...MOT...LOC 2122Z 202DEG 45KT 3869 7446 

$$

ANZ452>454-472-473-475-242215-
/O.CON.KPHI.MA.W.0142.000000T0000Z-171024T2215Z/
523 PM EDT TUE OCT 24 2017

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 615 PM EDT...

FOR THE FOLLOWING AREAS...
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM...
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM...
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM...
WATERS FROM CAPE MAY NJ TO FENWICK ISLAND DE OUT 20 TO 40 NM...
WATERS FROM GREAT EGG INLET NJ TO CAPE MAY NJ OUT 20 TO 40 NM...
WATERS FROM LITTLE EGG INLET NJ TO GREAT EGG INLET NJ OUT 20 TO 40
NMY FROM 20 TO 40 NM...

AT 522 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 7 NM SOUTHEAST OF
FIVE FATHOMS BUOY...MOVING NORTH AT 45 KNOTS.

HAZARD...WIND GUSTS TO 40 KNOTS. 

SOURCE...RADAR INDICATED. 

IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND 
         SUDDENLY HIGHER WAVES. 

LOCATIONS IMPACTED INCLUDE...
28-MILE WRECK...DEEPWATER REEF...FIVE FATHOMS BUOY...BUOY 2FB...
GREAT EGG REEF AND BUOY 4FB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.

&&

LAT...LON 3845 7444 3853 7471 3931 7445 3919 7397
TIME...MOT...LOC 2122Z 202DEG 45KT 3869 7446 

HAIL...0.00IN
WIND...40KTS

$$

SFJ
116 
FZUS71 KPHI 242147
MWSPHI

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
547 PM EDT TUE OCT 24 2017

ANZ454-475-242157-
/O.CAN.KPHI.MA.W.0142.000000T0000Z-171024T2215Z/
547 PM EDT TUE OCT 24 2017

...THE SPECIAL MARINE WARNING IS CANCELLED...

THE AFFECTED AREAS WERE...
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM...
WATERS FROM CAPE MAY NJ TO FENWICK ISLAND DE OUT 20 TO 40 NM...

  COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM...
  OUTER WATERS FROM CAPE MAY NJ TO FENWICK ISLAND DE OUT 20 TO 40
NM...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA AND NO LONGER 
POSES A SIGNIFICANT THREAT TO BOATERS IN THIS AREA.

LAT...LON 3883 7461 3931 7445 3919 7397 3873 7426
TIME...MOT...LOC 2147Z 202DEG 45KT 3898 7431 

$$

ANZ452-453-472-473-242215-
/O.CON.KPHI.MA.W.0142.000000T0000Z-171024T2215Z/
547 PM EDT TUE OCT 24 2017

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 615 PM EDT...

FOR THE FOLLOWING AREAS...
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM...
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM...
WATERS FROM GREAT EGG INLET NJ TO CAPE MAY NJ OUT 20 TO 40 NM...
WATERS FROM LITTLE EGG INLET NJ TO GREAT EGG INLET NJ OUT 20 TO 40
NMY FROM 20 TO 40 NM...

AT 547 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR 28-
MILE WRECK...MOVING NORTH AT 45 KNOTS.

HAZARD...WIND GUSTS TO 40 KNOTS. 

SOURCE...RADAR INDICATED. 

IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND 
         SUDDENLY HIGHER WAVES. 

LOCATIONS IMPACTED INCLUDE...
28-MILE WRECK...DEEPWATER REEF...BUOY 2FB AND GREAT EGG REEF. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE
EXPECTED.

&&

LAT...LON 3883 7461 3931 7445 3919 7397 3873 7426
TIME...MOT...LOC 2147Z 202DEG 45KT 3898 7431 

HAIL...0.00IN
WIND...40KTS

$$

SFJ
421 
FZUS71 KPHI 242206
MWSPHI

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
606 PM EDT TUE OCT 24 2017

ANZ452-453-472-473-242216-
/O.EXP.KPHI.MA.W.0142.000000T0000Z-171024T2215Z/
606 PM EDT TUE OCT 24 2017

...THE SPECIAL MARINE WARNING WILL EXPIRE AT 615 PM EDT...

THE AFFECTED AREAS WERE... 
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM...
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM...
WATERS FROM GREAT EGG INLET NJ TO CAPE MAY NJ OUT 20 TO 40 NM...
WATERS FROM LITTLE EGG INLET NJ TO GREAT EGG INLET NJ OUT 20 TO 40
NMY FROM 20 TO 40 NM...

THE THUNDERSTORM HAS MOVED OUT OF THE AREA AND NO LONGER POSES A
SIGNIFICANT THREAT TO BOATERS IN THIS AREA.

LAT...LON 3883 7461 3931 7445 3919 7397 3873 7426
TIME...MOT...LOC 2206Z 202DEG 45KT 3917 7421 

$$

SFJ

What forecasters said that day

The local office's own words before this special marine warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this special marine warning went out at Oct 24, 4:23 PM EDT, 45 minutes earlier.

Area forecast discussion, Oct 24, 4:23 PM EDT, 45 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
423 PM EDT Tue Oct 24 2017

.SYNOPSIS...
A cold front will move slowly offshore tonight. High pressure will
build into the eastern U.S. through the end of the week. A slow-
moving cold front will approach the Eastern Seaboard late this
weekend. High pressure will return to the area early next week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
As of 3 PM EDT, the cold front is located from eastern NJ southward
into southern DE and continuing to move slowly east. Mostly sunny
skies have developed across eastern PA and portions of NJ south into
Delmarva as drier air works in through the column. Most notably,
Dewpoints are falling into the mid-50s across western portions of
our CWA. Lines of locally heavy showers continue to develop from the
Monmouth/Middlesex County line southward into Ocean County, as a
result of upward ascent along the front. Despite the relatively
strong winds aloft, dry air advecting in aloft and weak instability
has precluded thunderstorm development. We remain in a marginal risk
through this evening, but thunderstorm activity, if any, will remain
confined to the aforementioned area with limited impacts (e.g., an
isolated damaging wind gust). The Wind Advisory was also allowed to
expire at 3 PM for the coastal NJ counties from Cape May to
Monmouth.

For tonight, a chance of showers in the vicinity of the NJ coast
through this evening. Otherwise, clear to partly cloudy skies. Low
temperature 5 to 10 degrees above normal, with winds veering from
southerly to westerly, generally 5 to 10 mph. Cannot rule out some
valley fog in the normally prone interior locations. However, there
should be sufficient mixing to preclude more widespread fog.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/...
Fair weather is expected on Wednesday. A partly sunny and dry day is
in store. High temperatures will be near seasonable levels with
westerly winds 5 to 10 mph.

&&

.LONG TERM /WEDNESDAY THROUGH TUESDAY/...
The main long-term concern regards the sensible weather threats
associated with the late-weekend system.

Synoptic/model discussion:

The large-scale pattern remains amplified through the period. As
one longwave trough lifts from the Midwest at 00Z Thursday to
eastern Quebec by 00Z Saturday, an upstream trough digs
southeastward into the central plains as high-amplitude ridging
continues in the eastern Pacific and far western North America.
The operational models are in good agreement regarding this
evolution and have remained consistent for the past few runs
now. As such, the forecast for Thursday through Saturday is of
above average confidence. Thereafter, confidence lowers quickly
as the upstream trough begins its slow trek to the East Coast.
Though model agreement is quite good Sunday onward, model errors
associated with frontal progression in highly amplified patterns
are often large.

In addition, there is quite a bit of disagreement upstream
regarding the potential for the development of a cutoff low in
the central or western U.S. early next week. As such, the
uncertainty regarding upstream flow gives me some pause
regarding downstream weather during this period. A final fly in
the ointment is a perturbation in the western Caribbean that may
have surface low development as it meanders northward. With the
model trends slowing the progression of the central U.S. trough
late this weekend, this provides the tropical system more time
to develop and for downstream flow to advect warmth/moisture
poleward in advance of the trough. Thus, there is potential for
even more amplification (blocking) to downstream ridging in the
Atlantic. This slower timing also could promote the
environmental conditions necessary for heavy rainfall as the
associated surface low(s)/front trudges into the surface high
near/off the Atlantic coast this weekend.

The bottom line here is that the late weekend system for the
East Coast has the potential for fairly substantial sensible
weather impacts, but there remains uncertainty regarding the
smaller-scale phenomena associated with any such impacts. Stay
tuned.

Forecast details:

As the Midwest trough lifts northeastward Thursday through
Saturday, a surface high will nose into the area from the
southwest. However, cold air aloft and amplified flow downstream
will prevent much progression of the cold front moving through
the area today. As midlevel vorticity maxima continue rotating
cyclonically around the trough, there may be some residual
precipitation offshore Wednesday night, especially if the system
acquires a more substantial negative tilt. I also increased PoPs
to slight chances Thursday as the cold core of the trough makes
its move through the area. Instability showers cannot be ruled
out, especially given the rather favorable timing with peak
heating. Forecast temperatures are near to slightly below
average and close to a GFS/ECMWF MOS blend.

Any precipitation should shut down quickly Thursday evening, and
skies will rapidly clear. However, it may take winds most of the
night to calm, so I kept temperatures rather close to MOS for
now. Should the winds ease more quickly than forecast, the
forecast lows Thursday night will be too warm.

A warming trend should commence Friday and Saturday as heights
will rise upstream of the passing trough and downstream of the
next digging one. This period should be dry, and I suspect MOS
may be a bit on the cool side (especially Saturday). For now,
bumped up temps a degree or two, but should the pattern hold, I
suspect this may not be enough.

The nice weather comes to an end Sunday. The good timing
agreement among the models lends credence to raising PoPs, as
lift/moisture should both be in plentiful supply. There is also
suggestion by the operational models of surface low development
along the front, which would only enhance the large-scale lift
in place. With the potential influence of the aforementioned
tropical system (via heat/moisture transport northward),
widespread precipitation is a good bet, and heavy rainfall
potential is not negligible.

I ramped down PoPs on the fast side Monday...possibly too fast,
if the slowing trend in the models continues. However, I am
basing this on the seeming slow bias of frontal progression in
these highly amplified patterns (today being a good example) and
the strong agreement among the GFS/ECMWF/CMC regarding the
frontal sweep through the region Sunday/Sunday night.

Kept things dry thereafter with temps near or slightly below
seasonal averages.

&&

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

Still some MVFR at ACY as of 19Z and this will to improve to VFR
late this evening. Cannot rule out brief MVFR at MIV late this
afternoon as well. Otherwise, now VFR at all TAF sites, continuing
into Wednesday. Southerly winds gusting 20 to 25 knots this evening
will veer to the west overnight and diminish, with speeds late this
evening into Wednesday generally 5 to 10 knots.

OUTLOOK...

Wednesday night: Mainly VFR with west or northwest winds 5 to 15
kts. Confidence average.

Thursday: Mainly VFR, but a slight chance of showers exists with
brief sub-VFR CIGs/VSBYs possible. West or northwest winds 10 to
15 kts. Confidence slightly below average.

Thursday night through Friday: Mainly VFR with light winds
backing from west or southwest Thursday night to southerly or
southeasterly Friday night. Confidence slightly above average.

Saturday: Mainly VFR with southeasterly winds increasing to 10
to 15 kts. Confidence average.

Saturday night and Sunday: Sub-VFR conditions possible.
Rain/shower chances increase, especially Sunday. Southeast winds
10 to 15 kts with higher gusts. Confidence average.

&&

.MARINE...
We cancelled the Gale Warning for ANZ453 south and converted to SCA
at 18Z today. The Gale Warning for ANZ450 > 452 is slated to come
down at 23Z. This too will be replaced by SCA. While winds veer from
south to west overnight and gradually diminish, seas will remain
elevated. On the Atlantic coastal waters 6-9 ft seas this evening
will only subside to around 5 ft on Wednesday. There are no marine
headlines in effect for Delaware Bay. Wave heights will be near 5 ft
into this evening near the bay entrance.

OUTLOOK...

Wednesday night through Thursday night: Marginal advisory
conditions may be met (mainly for seas). Northwest winds may
also gust near advisory levels for a time Thursday afternoon and
evening.

Friday through Saturday: Sub-advisory conditions and fair
weather expected.

Saturday night and Sunday: Onshore winds and seas will rapidly
increase during this period, with at least advisory-level
conditions possible. Rain/showers will become likely on Sunday.

&&

.CLIMATE...
Vulnerable record high minimums today the 24th:

Allentown     58 1975

Atlantic City 63 2001

Philadelphia  63 1900

We will know on this by 05z/25...later tonight.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Gale Warning until 7 PM EDT this evening for ANZ450>452.
     Small Craft Advisory until 8 PM EDT Wednesday for ANZ453>455.

&&

Synopsis...CMS
Near Term...Franck
Short Term...Franck
Long Term...CMS
Aviation...CMS/Franck
Marine...CMS/Franck
Climate...Drag
Hazardous weather outlook, Oct 24, 5:04 PM EDT, 4 minutes before
Hazardous Weather Outlook
National Weather Service Mount Holly NJ
504 PM EDT Tue Oct 24 2017

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-055-
060>062-070-071-101>106-252115-
New Castle-Kent-Inland Sussex-Delaware Beaches-Cecil-Kent MD-
Queen Annes-Talbot-Caroline-Sussex-Warren-Morris-Hunterdon-Somerset-
Middlesex-Western Monmouth-Eastern Monmouth-Mercer-Salem-Gloucester-
Camden-Northwestern Burlington-Ocean-Cumberland-Atlantic-Cape May-
Atlantic Coastal Cape May-Coastal Atlantic-Coastal Ocean-
Southeastern Burlington-Carbon-Monroe-Berks-Lehigh-Northampton-
Delaware-Philadelphia-Western Chester-Eastern Chester-
Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks-
504 PM EDT Tue Oct 24 2017

This Hazardous Weather Outlook is for central Delaware, northern
Delaware, southern 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.

No hazardous weather is expected at this time.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ430-431-453>455-252115-
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 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-
504 PM EDT Tue Oct 24 2017

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

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ450>452-252115-
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-
504 PM EDT Tue Oct 24 2017

...GALE WARNING IN EFFECT UNTIL 7 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

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

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Oct 24, 12:03 PM EDT, 5 hours 5 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
1203 PM EDT TUE OCT 24 2017

NJZ001-008-010-012-241630-
Morris-Sussex-Somerset-Middlesex-
1203 PM EDT TUE OCT 24 2017

...A LINE OF SHOWERS WILL AFFECT MORRIS...EASTERN SUSSEX...CENTRAL
SOMERSET AND MIDDLESEX COUNTIES...

At 1202 PM EDT, radar indicated showers were located along a line
extending from near High Point to Green Pond to Cranbury. Movement
was northeast at 60 mph.

Winds up to 40 mph are possible with these showers. An isolated
lightning strike is possible.

Locations impacted include...
New Brunswick, Perth Amboy, Morristown, Somerville, Port Jervis,
Somerset, Edison, Old Bridge, East Brunswick, South Brunswick,
Sayreville, North Brunswick, Dover, Madison, Hopatcong, Middlesex,
Florham Park, East Hanover, Lincoln Park and Bound Brook.

LAT...LON 4120 7437 4104 7450 4105 7445 4097 7428
      4090 7427 4091 7433 4076 7437 4075 7436
      4067 7446 4066 7440 4060 7446 4059 7428
      4060 7423 4041 7432 4028 7452 4033 7462
      4092 7460 4130 7477 4136 7470
TIME...MOT...LOC 1602Z 206DEG 50KT 4129 7469 4100 7445 4033 7451

CMS
Local storm report, Oct 24, 12:14 PM EDT, 4 hours 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1214 PM EDT TUE OCT 24 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 AM     NON-TSTM WND DMG 1 SW FRANKLINVILLE      40.00N  75.14W
10/24/2017                   PHILADELPHIA       PA   BROADCAST MEDIA

            TREE FELL ONTO CARS AND BROUGHT DOWN WIRES ON SCHILLER
            STREET.

0600 AM     NON-TSTM WND DMG KENNEDY HOUSE           40.09N  75.15W
10/24/2017                   MONTGOMERY         PA   BROADCAST MEDIA

            TREE DOWN ON RICES MILL ROAD IN CHELTENHAM TWP.

0700 AM     NON-TSTM WND DMG 1 ENE BURLINGTON TWP    40.06N  74.82W
10/24/2017                   BURLINGTON         NJ   BROADCAST MEDIA

            TREE DOWN ON MILL LANE BETWEEN OLD YORK ROAD AND
            JACKSONVILLE ROAD.

0700 AM     NON-TSTM WND DMG 1 N SPRINGVILLE         39.95N  74.87W
10/24/2017                   BURLINGTON         NJ   BROADCAST MEDIA

            TREE BLOWN DOWN ONTO WIRES ON EAYRESTOWN ROAD IN
            LUMBERTON.

&&

EVENT NUMBER PHI1701649
EVENT NUMBER PHI1701650
EVENT NUMBER PHI1701651
EVENT NUMBER PHI1701652

CMS
Special weather statement, Oct 24, 12:28 PM EDT, 4 hours 40 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
1228 PM EDT TUE OCT 24 2017

NJZ008-010-012-241700-
Morris-Somerset-Middlesex-
1228 PM EDT TUE OCT 24 2017

...A STRONG THUNDERSTORM WILL AFFECT EASTERN MORRIS...NORTHEASTERN
SOMERSET AND NORTH CENTRAL MIDDLESEX COUNTIES...

At 1227 PM EDT, a strong thunderstorm was located over Florham Park,
or near Morristown, moving north at 70 mph.

Winds up to 50 mph are possible with this storm.

Locations impacted include...
Morristown, Edison, Madison, Middlesex, Florham Park, East Hanover,
Lincoln Park, Bound Brook, Kinnelon, Chatham, Boonton, Butler,
Rockaway, Morris Plains, Mountain Lakes, Riverdale, Martinsville,
Millington, Parsippany and Pequannock Township.

LAT...LON 4091 7433 4086 7432 4076 7437 4075 7436
      4067 7446 4066 7445 4066 7440 4060 7446
      4059 7429 4050 7433 4061 7461 4105 7446
      4102 7443 4103 7442 4100 7430 4097 7428
      4092 7429 4090 7427
TIME...MOT...LOC 1627Z 197DEG 61KT 4080 7440

CMS
Local storm report, Oct 24, 12:46 PM EDT, 4 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1246 PM EDT TUE OCT 24 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0515 AM     NON-TSTM WND DMG LAFAYETTE               40.06N  75.27W
10/24/2017                   MONTGOMERY         PA   NEWSPAPER

            TREES DOWN ON WAVERLY ROAD AND LAFAYETTE ROAD IN LOWER
            MERION.

0630 AM     NON-TSTM WND DMG RADNOR STATION          40.05N  75.37W
10/24/2017                   DELAWARE           PA   NEWSPAPER

            TREE AND WIRES DOWN ON ITHAN ROAD AND MILL ROAD IN
            RADNOR TWP.

0630 AM     NON-TSTM WND DMG 1 WNW TRINITY HOUSE     40.05N  75.46W
10/24/2017                   CHESTER            PA   NEWSPAPER

            TREE AND WIRES DOWN ON IRISH ROAD IN BERWYN.

0700 AM     NON-TSTM WND DMG NORTH WALES             40.21N  75.28W
10/24/2017                   MONTGOMERY         PA   NEWSPAPER

            TREE DOWN BLOCKING WALNUT STREET IN NORTH WALES. ROAD
            WAS CLOSED FOR SEVERAL HOURS.

&&

EVENT NUMBER PHI1701653
EVENT NUMBER PHI1701654
EVENT NUMBER PHI1701655
EVENT NUMBER PHI1701656

CMS
Special weather statement, Oct 24, 1:04 PM EDT, 4 hours 4 minutes before
Special Weather Statement
National Weather Service Mount Holly NJ
104 PM EDT TUE OCT 24 2017

NJZ012>014-020-026-241730-
Eastern Monmouth-Coastal Ocean-Ocean-Western Monmouth-Middlesex-
104 PM EDT TUE OCT 24 2017

...A SHOWER WILL AFFECT NORTHERN OCEAN...MONMOUTH AND EASTERN
MIDDLESEX COUNTIES...

At 104 PM EDT, a shower was located over Jackson, or 12 miles
northwest of Toms River, moving north at 60 mph.

Winds up to 40 mph are possible with this shower.

Locations impacted include...
Toms River, Perth Amboy, Long Branch, Asbury Park, Sandy Hook,
Edison, Lakewood, Middletown, Old Bridge, Jackson, Howell, East
Brunswick, Sayreville, Marlboro, Manalapan, Carteret, Tinton Falls,
Holmdel, Red Bank and Keansburg.

This shower 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 4018 7401 3997 7419 4006 7447 4060 7436
      4061 7432 4058 7421 4050 7428 4046 7426
      4045 7413 4041 7403 4044 7399 4048 7402
      4048 7401 4044 7398 4042 7400 4042 7398
      4039 7398 4039 7401 4038 7397 4036 7397
TIME...MOT...LOC 1704Z 199DEG 54KT 4011 7430

MPS
Local storm report, Oct 24, 1:23 PM EDT, 3 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
123 PM EDT TUE OCT 24 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0354 AM     NON-TSTM WND DMG LOWER SAUCON            40.61N  75.28W
10/24/2017                   NORTHAMPTON        PA   SOCIAL MEDIA

            TREES DOWN IN LOWER SAUCON.

0357 AM     NON-TSTM WND GST DOVER AFB               39.13N  75.47W
10/24/2017  M60 MPH          KENT               DE   AWOS

0400 AM     NON-TSTM WND DMG HARRINGTON              38.92N  75.57W
10/24/2017                   KENT               DE   STATE POLICE

            TREES DOWN.

0400 AM     NON-TSTM WND DMG DOVER                   39.16N  75.52W
10/24/2017                   KENT               DE   STATE POLICE

            TREES DOWN

0400 AM     NON-TSTM WND DMG MARYDALE                39.66N  75.70W
10/24/2017                   NEW CASTLE         DE   STATE POLICE

            TREES DOWN

0400 AM     NON-TSTM WND DMG FELTON                  39.01N  75.58W
10/24/2017                   KENT               DE   STATE POLICE

            TREES DOWN

0400 AM     NON-TSTM WND DMG SMYRNA                  39.30N  75.61W
10/24/2017                   KENT               DE   STATE POLICE

            TREES DOWN

0436 AM     NON-TSTM WND GST SHIP JOHN SHOAL NOS     39.30N  75.38W
10/24/2017  M67 MPH          ANZ430             NJ   NOS PLATFORM

0515 AM     NON-TSTM WND DMG LAFAYETTE               40.06N  75.27W
10/24/2017                   MONTGOMERY         PA   NEWSPAPER

            TREES DOWN ON WAVERLY ROAD AND LAFAYETTE ROAD IN LOWER
            MERION.

0526 AM     NON-TSTM WND DMG EAGLEVILLE              40.16N  75.40W
10/24/2017                   MONTGOMERY         PA   BROADCAST MEDIA

            TREE DOWN NEAR THE INTERSECTION OF EAGLESTREAM DRIVE
            AND RIDGE PIKE.

0600 AM     NON-TSTM WND DMG PITMAN                  39.73N  75.13W
10/24/2017                   GLOUCESTER         NJ   SOCIAL MEDIA

            LARGE TREE DOWN DAMAGING A CAR. TIME ESTIMATED.

0600 AM     NON-TSTM WND DMG 1 SW FRANKLINVILLE      40.00N  75.14W
10/24/2017                   PHILADELPHIA       PA   BROADCAST MEDIA

            TREE FELL ONTO CARS AND BROUGHT DOWN WIRES ON SCHILLER
            STREET.

0600 AM     NON-TSTM WND DMG KENNEDY HOUSE           40.09N  75.15W
10/24/2017                   MONTGOMERY         PA   BROADCAST MEDIA

            TREE DOWN ON RICES MILL ROAD IN CHELTENHAM TWP.

0623 AM     NON-TSTM WND DMG SUNNYBROOK              40.11N  75.19W
10/24/2017                   MONTGOMERY         PA   BROADCAST MEDIA

            TREE DOWN NEAR INTERSECTION OF MEADOW LANE AND BRIAR
            ROAD.

0630 AM     NON-TSTM WND DMG RADNOR STATION          40.05N  75.37W
10/24/2017                   DELAWARE           PA   NEWSPAPER

            TREE AND WIRES DOWN ON ITHAN ROAD AND MILL ROAD IN
            RADNOR TWP.

0630 AM     NON-TSTM WND DMG 1 WNW TRINITY HOUSE     40.05N  75.46W
10/24/2017                   CHESTER            PA   NEWSPAPER

            TREE AND WIRES DOWN ON IRISH ROAD IN BERWYN.

0634 AM     NON-TSTM WND DMG 1 NNE MONROE TWP        39.66N  74.96W
10/24/2017                   GLOUCESTER         NJ   BROADCAST MEDIA

            TREES DOWN AT MALAGA ROAD AND BLACK HORSE PIKE.

0639 AM     NON-TSTM WND DMG HAMILTON TWP            40.21N  74.70W
10/24/2017                   MERCER             NJ   TRAINED SPOTTER

            MULTIPLE WIRES AND TREES DOWN.

0700 AM     NON-TSTM WND DMG 1 ENE BURLINGTON TWP    40.06N  74.82W
10/24/2017                   BURLINGTON         NJ   BROADCAST MEDIA

            TREE DOWN ON MILL LANE BETWEEN OLD YORK ROAD AND
            JACKSONVILLE ROAD.

0700 AM     NON-TSTM WND DMG 1 N SPRINGVILLE         39.95N  74.87W
10/24/2017                   BURLINGTON         NJ   BROADCAST MEDIA

            TREE BLOWN DOWN ONTO WIRES ON EAYRESTOWN ROAD IN
            LUMBERTON.

0700 AM     NON-TSTM WND DMG NORTH WALES             40.21N  75.28W
10/24/2017                   MONTGOMERY         PA   NEWSPAPER

            TREE DOWN BLOCKING WALNUT STREET IN NORTH WALES. ROAD
            WAS CLOSED FOR SEVERAL HOURS.

0725 AM     NON-TSTM WND DMG FAIRMOUNT               39.97N  75.18W
10/24/2017                   PHILADELPHIA       PA   BROADCAST MEDIA

            TREE DOWN ON KELLY DRIVE NEAR SEDGLEY DRIVE.

0726 AM     NON-TSTM WND DMG 1 S WHITMAN SQUARE      39.73N  75.03W
10/24/2017                   GLOUCESTER         NJ   BROADCAST MEDIA

            A TREE FELL ON A HOUSE IN WASHINGTON TWP NEAR THE
            STAGECOACH ROAD AND BLACK HORSE PIKE INTERSECTION.

0730 AM     NON-TSTM WND DMG CLAYTON                 39.66N  75.08W
10/24/2017                   GLOUCESTER         NJ   AMATEUR RADIO

            LARGE TREE LIMBS DOWN.

0821 AM     NON-TSTM WND DMG HARDING                 39.64N  75.12W
10/24/2017                   GLOUCESTER         NJ   SOCIAL MEDIA

            TREE DOWN AT ELK ROAD AND WILLOW GROVE ROAD IN ELK TWP.

0821 AM     NON-TSTM WND DMG MULLICA HILL            39.74N  75.22W
10/24/2017                   GLOUCESTER         NJ   TRAINED SPOTTER

            TREE DOWN ON ROUTE 322 IN MULLICA HILL.

0830 AM     NON-TSTM WND DMG LOWER MOUNT BETHEL TWP  40.80N  75.17W
10/24/2017                   NORTHAMPTON        PA   SOCIAL MEDIA

            TREES DOWN IN LOWER MT. BETHEL TWP.

0920 AM     NON-TSTM WND DMG DOWNER                  39.69N  75.05W
10/24/2017                   GLOUCESTER         NJ   DEPT OF HIGHWAYS

            DOWNED TREE AND WIRES ON US HIGHWAY 322 NEAR THE
            INTERSECTION OF FRIES MILL ROAD. ALL LANES ARE CLOSED.

0928 AM     NON-TSTM WND DMG LEONARDO                40.42N  74.06W
10/24/2017                   MONMOUTH           NJ   SOCIAL MEDIA

            TREES AND WIRES DOWN ON HAMILTON AVENUE BETWEEN CONCORD
            AVENUE AND THOMPSON AVENUE IN MIDDLETOWN.

0932 AM     NON-TSTM WND DMG PLEASANT GROVE          40.78N  74.85W
10/24/2017                   MORRIS             NJ   SOCIAL MEDIA

            TREE AND WIRES DOWN ON PLEASANT GROVE ROAD IN LONG
            VALLEY.

1046 AM     NON-TSTM WND DMG 1 SE HANFORD            41.29N  74.55W
10/24/2017                   SUSSEX             NJ   DEPT OF HIGHWAYS

            DOWNED TREE ON STATE HIGHWAY 284. ALL LANES CLOSED.

&&

EVENT NUMBER PHI1701633 PHI1701632 PHI1701626 PHI1701627 PHI1701628
PHI1701629 PHI1701630 PHI1701631 PHI1701653 PHI1701637 PHI1701634
PHI1701649 PHI1701650 PHI1701638 PHI1701654 PHI1701655 PHI1701639
PHI1701643 PHI1701651 PHI1701652 PHI1701656 PHI1701635 PHI1701636
PHI1701646 PHI1701640 PHI1701642 PHI1701641 PHI1701645 PHI1701644
PHI1701647 PHI1701648

CMS

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 2:42 AM EDTGale WarningPHI16 hr
Oct 24, 6:50 AM EDTSpecial Weather StatementPHICumberland40 min
Oct 24, 7:32 AM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester28 min
Oct 24, 8:00 AM EDTSpecial Weather StatementPHIHunterdon, Mercer, Middlesex, Somerset30 min
Oct 24, 8:33 AM EDTWind AdvisoryPHISussex2 hr
Oct 24, 8:58 AM EDTSpecial Weather StatementPHIWarren32 min
Oct 24, 9:27 AM EDTSpecial Weather StatementPHIWarren33 min
Oct 24, 9:59 AM EDTSpecial Weather StatementPHIGloucester31 min
Oct 24, 10:00 AM EDTSpecial Weather StatementPHISussex, Warren30 min
Oct 24, 10:30 AM EDTSpecial Weather StatementPHIBurlington, Camden, Hunterdon30 min
Oct 24, 10:51 AM EDTSpecial Weather StatementPHIHunterdon, Morris, Somerset, Sussex, Warren39 min
Oct 24, 11:03 AM EDTSpecial Weather StatementPHIAtlantic, Burlington27 min
Oct 24, 11:11 AM EDTSpecial Weather StatementPHIMercer, Middlesex, Somerset34 min
Oct 24, 11:26 AM EDTSpecial Weather StatementPHIMorris, Somerset34 min
Oct 24, 11:31 AM EDTSpecial Weather StatementPHIAtlantic, Burlington, Ocean29 min
Oct 24, 12:03 PM EDTSpecial Weather StatementPHIMiddlesex, Morris, Sussex27 min
Oct 24, 12:28 PM EDTSpecial Weather StatementPHIMorris32 min
Oct 24, 1:04 PM EDTSpecial Weather StatementPHIMonmouth26 min
Oct 24, 2:16 PM EDTSmall Craft AdvisoryPHI13 hr
Oct 24, 5:37 PM EDTSpecial Marine WarningPHI53 min
Oct 24, 5:41 PM EDTSpecial Weather StatementPHIAtlantic34 min
Oct 24, 5:53 PM EDTSpecial Marine WarningPHI67 min
Oct 24, 6:01 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Ocean4 hr
Oct 24, 6:13 PM EDTSpecial Weather StatementPHIOcean32 min
Oct 24, 8:07 AM EDTSpecial Weather StatementPHIChester, Montgomery23 min
Oct 24, 8:28 AM EDTSpecial Weather StatementPHIBucks, Delaware, Lehigh, Montgomery, Northampton32 min
Oct 24, 8:52 AM EDTSpecial Weather StatementPHIMonroe23 min
Oct 24, 5:54 AM EDTCoastal Flood AdvisoryPHICecil, Kent, Queen Anne's, Talbot6 hr

Nearby

Special Marine Warnings in New Jersey, 2017Every special marine warning in 2017

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.