Alert archive / New Jersey / Special Marine Warnings in 2021

Special Marine Warning 35, NWS Philadelphia/Mount Holly

June 8, 2021

NWS Philadelphia/Mount Holly issued this special marine warning at Jun 8, 2021, 6:22 PM EDT. It was in force for 83 min. 2 reports 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 8, 2021, 6:22 PM EDT (22:22 UTC)
Expired
Jun 8, 2021, 7:45 PM EDT
In force
83 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
40.0 mph

The radar

The Philadelphia radar (KDIX), 42 km from the middle of the area, began a volume at 22:24 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.

What was reported inside it

TimeReportWhereRemark
Jun 8, 6:36 PM EDTMARINE TSTM WIND 424 Se Mystic Island, NJTUCKERTON WEATHERFLOW GAUGE.
Jun 8, 6:50 PM EDTTSTM WND GST 502 Ssw Ship Bottom, NJMEASURED BY A TEMPEST WEATHER SYSTEM.

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 12:00Z, 10.4 hours before the alert went out and 177 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 12:00Z on 2021-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 740 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2021-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 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
740 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
1004 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

266 
WHUS51 KPHI 082222
SMWPHI
ANZ451-452-471-082345-
/O.NEW.KPHI.MA.W.0035.210608T2222Z-210608T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Mount Holly NJ
622 PM EDT Tue Jun 8 2021

The National Weather Service in Mount Holly NJ has issued a

* Special Marine Warning for...
  
Coastal waters from Manasquan Inlet to Great Egg Inlet NJ out 20
nm...
Outer waters from Manasquan Inlet to Little Egg Inlet NJ out 20 to 40
nm...

* Until 745 PM EDT.

* At 622 PM EDT, severe thunderstorms were located along a line
  extending from 12 nm west of Forked River to 6 nm west of Ship
  Bottom to 7 nm west of Little Egg Inlet, moving east at 20 knots.

  HAZARD...Wind gusts to 40 knots and large hail.

  SOURCE...Radar.

  IMPACT...Small craft could be damaged in briefly higher winds and 
           suddenly higher waves. Large hail could result in 
           structural damage.

* Locations impacted include...
  Beach Haven, Barnegat Light, North Beach Haven, Garden State North
  Reef, Little Egg Reef, Little Egg Inlet, Ship Bottom, Barnegat
  Light Reef, Garden State South Reef, Harvey Cedars, Forked River
  and Seaside Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 3937 7380 3947 7450 3948 7450 3953 7456
      3961 7448 3960 7439 3970 7426 3982 7427
      3991 7420 3994 7374 3966 7356
TIME...MOT...LOC 2222Z 271DEG 18KT 3982 7442 3968 7433 3954 7447 

HAIL...>.75IN
WIND...40KTS

$$

Staarmann
1 follow-up statement
428 
FZUS71 KPHI 082324
MWSPHI

Marine Weather Statement
National Weather Service Mount Holly NJ
724 PM EDT Tue Jun 8 2021

ANZ451-452-471-082345-
/O.CON.KPHI.MA.W.0035.000000T0000Z-210608T2345Z/
724 PM EDT Tue Jun 8 2021

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 745 PM EDT...

For the following areas...
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20
nm...
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20
nm...
Waters from Manasquan Inlet NJ to Little Egg Inlet NJ out 20 to 40
nm...

At 723 PM EDT, strong thunderstorms were located along a line
extending from near Barnegat Light Reef to 8 nm east of Garden State
North Reef to near Garden State South Reef, moving east at 20 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...
Garden State North Reef, Garden State South Reef, Little Egg Reef,
Barnegat Light Reef and Barnegat Light.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 3938 7379 3937 7382 3944 7429 3968 7412
      3992 7407 3994 7374 3966 7356
TIME...MOT...LOC 2323Z 271DEG 20KT 3981 7395 3967 7386 3953 7400 

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

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 1:27 PM EDTAreal Flood AdvisoryPHIWarren3 hr
Jun 8, 1:49 PM EDTSpecial Weather StatementPHIWarren26 min
Jun 8, 1:54 PM EDTAreal Flood AdvisoryPHIMorris, Sussex95 min
Jun 8, 2:19 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer2 hr
Jun 8, 2:29 PM EDTSpecial Weather StatementPHIMorris16 min
Jun 8, 2:48 PM EDTSpecial Weather StatementPHIHunterdon, Morris, Somerset27 min
Jun 8, 3:13 PM EDTSpecial Weather StatementPHIHunterdon, Somerset32 min
Jun 8, 3:14 PM EDTAreal Flood AdvisoryPHIMiddlesex, Somerset74 min
Jun 8, 4:12 PM EDTSevere Thunderstorm WarningPHIMonmouth48 min
Jun 8, 4:14 PM EDTSpecial Marine WarningPHI91 min
Jun 8, 4:44 PM EDTSpecial Weather StatementPHISalem31 min
Jun 8, 4:47 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem43 min
Jun 8, 4:54 PM EDTSpecial Marine WarningPHI96 min
Jun 8, 4:56 PM EDTSevere Thunderstorm WarningPHIAtlantic, Camden, Gloucester49 min
Jun 8, 4:58 PM EDTSevere Thunderstorm WarningPHIOcean47 min
Jun 8, 5:30 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem45 min
Jun 8, 5:43 PM EDTSpecial Weather StatementPHIOcean32 min
Jun 8, 6:01 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean44 min
Jun 8, 7:39 PM EDTSpecial Marine WarningPHI66 min
Jun 8, 7:52 PM EDTSpecial Weather StatementPHICape May38 min
Jun 8, 11:54 AM EDTAreal Flood AdvisoryPHIMonroe2 hr
Jun 8, 12:34 PM EDTFlash Flood WarningPHIMonroe2 hr
Jun 8, 12:40 PM EDTSpecial Weather StatementPHIMonroe35 min
Jun 8, 1:09 PM EDTSpecial Weather StatementPHIMonroe21 min
Jun 8, 1:17 PM EDTSpecial Weather StatementPHIChester13 min
Jun 8, 1:18 PM EDTAreal Flood AdvisoryPHIChester, Delaware, Montgomery, Philadelphia3 hr
Jun 8, 1:24 PM EDTSpecial Weather StatementPHIDelaware21 min
Jun 8, 1:35 PM EDTFlash Flood WarningPHIChester, Delaware, Montgomery5 hr
Jun 8, 2:07 PM EDTSpecial Weather StatementPHIBucks23 min
Jun 8, 2:43 PM EDTSpecial Weather StatementPHIMontgomery32 min
Jun 8, 3:15 PM EDTSpecial Weather StatementPHIChester30 min
Jun 8, 3:21 PM EDTFlash Flood WarningPHIChester, Montgomery3 hr
Jun 8, 3:43 PM EDTSpecial Weather StatementPHIChester32 min
Jun 8, 4:20 PM EDTSpecial Weather StatementPHIChester25 min
Jun 8, 4:25 PM EDTRiver Flood WarningPHIChester11 hr
Jun 8, 6:21 PM EDTAreal Flood WarningPHIChester, Delaware15 hr
Jun 8, 7:14 PM EDTRiver Flood WarningPHIChester, Delaware18 hr
Jun 8, 7:43 PM EDTSpecial Weather StatementPHISussex32 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; radar from the NEXRAD Level II archive.