Alert archive / New Jersey / Special Marine Warnings in 2021

Special Marine Warning 43, NWS Philadelphia/Mount Holly

June 14, 2021

NWS Philadelphia/Mount Holly issued this special marine warning at Jun 14, 2021, 10:01 PM EDT. It was in force for 89 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 14, 2021, 10:01 PM EDT (02:01 UTC)
Expired
Jun 14, 2021, 11:30 PM EDT
In force
89 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
50.0 mph

What was reported inside it

TimeReportWhereRemark
Jun 14, 10:08 PM EDTTSTM WND DMGAllenhurst, NJDOWNED WIRES NEAR PARK AVENUE. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 2.0 hours before the alert went out and 115 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, Brookhaven, NY at 00:00Z on 2021-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Brookhaven, NY at 00:00Z on 2021-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1380 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

039 
WHUS51 KPHI 150201
SMWPHI
ANZ450-451-150330-
/O.NEW.KPHI.MA.W.0043.210615T0201Z-210615T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Mount Holly NJ
1001 PM EDT Mon Jun 14 2021

The National Weather Service in Mount Holly NJ has issued a

* Special Marine Warning for...
  
Coastal waters from Sandy Hook to Little Egg Inlet NJ out 20 nm...

* Until 1130 PM EDT.

* At 1000 PM EDT, a severe thunderstorm was located over Belmar,
  moving east at 20 knots.

  HAZARD...Wind gusts in excess of 50 knots and large hail.

  SOURCE...Radar.

  IMPACT...Boats could suffer significant structural damage in high 
           winds and hail. Small craft could capsize in suddenly 
           higher waves.

* Locations impacted include...
  Sea Girt Reef, Shark River Reef, Point Pleasant Beach, Belmar,
  Manasquan Inlet, Monmouth Beach, Sea Bright, Axel Carlson Reef and
  Fair Haven.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Boaters should seek safe harbor immediately until this storm passes.
Wind gusts in excess of 50 knots, large hail, high waves, dangerous
lightning, and heavy rain are possible with this storm.

&&

LAT...LON 4026 7365 4007 7369 4007 7370 4003 7370
      4006 7414 4018 7413 4020 7411 4024 7405
      4027 7405 4031 7412 4037 7411 4038 7388
TIME...MOT...LOC 0200Z 272DEG 18KT 4022 7402 

HAIL...>.75IN
WIND...50KTS

$$

CMS
1 follow-up statement
403 
FZUS71 KPHI 150256
MWSPHI

Marine Weather Statement
National Weather Service Mount Holly NJ
1056 PM EDT Mon Jun 14 2021

ANZ450-451-150330-
/O.CON.KPHI.MA.W.0043.000000T0000Z-210615T0330Z/
1056 PM EDT Mon Jun 14 2021

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT...

For the following areas...
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20
nm...
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm...

At 1055 PM EDT, a strong thunderstorm was located near Shark River
Reef, moving east at 20 knots.

HAZARD...Wind gusts 34 knots or greater.

SOURCE...Radar indicated.

IMPACT...Small craft could be damaged in briefly higher winds and 
         suddenly higher waves.

Locations impacted include...
Sea Girt Reef, Shark River Reef, Point Pleasant Beach, Axel Carlson
Reef and Manasquan Inlet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

&&

LAT...LON 4026 7365 4009 7369 4006 7370 4003 7370
      4006 7414 4015 7413 4018 7393 4031 7374
TIME...MOT...LOC 0255Z 272DEG 18KT 4021 7366 

HAIL...0.00IN
WIND...>34KTS

$$

CMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:08 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset52 min
Jun 14, 8:34 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester41 min
Jun 14, 8:55 PM EDTSevere Thunderstorm WarningPHIGloucester50 min
Jun 14, 9:11 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 1 more49 min
Jun 14, 9:12 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 1 more74 min
Jun 14, 9:17 PM EDTFlash Flood WarningPHIBurlington, Camden3 hr
Jun 14, 9:29 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester46 min
Jun 14, 9:54 PM EDTAreal Flood AdvisoryPHIMonmouth97 min
Jun 14, 9:58 PM EDTSevere Thunderstorm WarningPHIMonmouth32 min
Jun 14, 10:07 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean53 min
Jun 14, 10:51 PM EDTSpecial Marine WarningPHI114 min
Jun 14, 11:07 PM EDTSpecial Marine WarningPHI113 min
Jun 14, 11:21 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean39 min
Jun 14, 11:42 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland, Gloucester, Salem63 min
Jun 14, 11:47 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland, Ocean, Salem118 min
Jun 15, 12:04 AM EDTSpecial Marine WarningPHI116 min
Jun 15, 12:12 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Gloucester51 min
Jun 15, 1:00 AM EDTSpecial Marine WarningPHI88 min
Jun 14, 11:12 PM EDTSevere Thunderstorm WarningPHIKent63 min
Jun 14, 11:39 PM EDTAreal Flood AdvisoryPHIKent, New Castle85 min
Jun 14, 11:51 PM EDTSevere Thunderstorm WarningPHIKent, Sussex54 min
Jun 14, 11:54 PM EDTSevere Thunderstorm WarningPHISussex66 min

Nearby

Special Marine Warnings in New Jersey, 2021Every special marine warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.