Alert archive / New Jersey / Special Marine Warnings in 2012

Special Marine Warning 13, NWS Philadelphia/Mount Holly

June 3, 2012

NWS Philadelphia/Mount Holly issued this special marine warning at Jun 3, 2012, 8:16 PM EDT. It was in force for 89 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
Jun 3, 2012, 8:16 PM EDT (00:16 UTC)
Expired
Jun 3, 2012, 9:45 PM EDT
In force
89 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

The radar

The Dover AFB radar (KDOX), 56 km from the middle of the area, began a volume at 00:15 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, 0.3 hours before the alert went out and 155 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 2012-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 58 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, Wallops Is Stn, VA at 00:00Z on 2012-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.193958Sfc1 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
58 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1799 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

492 
WHUS51 KPHI 040016 RRA
SMWPHI
ANZ430-431-040145-
/O.NEW.KPHI.MA.W.0013.120604T0016Z-120604T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
816 PM EDT SUN JUN 3 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
  THE DELAWARE BAY...

  INCLUDING CAPE HENLOPEN...REEDY POINT...WOODLAND BEACH...SLAUGHTER
  BEACH...BRANDYWINE SHOAL LIGHT...BROWN SHOAL LIGHT...CROSS LEDGE
  LIGHT...EAST POINT...FORTESQUE BEACH...FOURTEEN FOOT BANK LIGHT...
  MIAH MAULL LIGHT...SEA BREEZE...SHIP JOHN SHOAL LIGHT AND STONY
  POINT...

* UNTIL 945 PM EDT

* AT 814 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  LINE OF THUNDERSTORMS...PRODUCING STRONG WINDS 34 KNOTS OR GREATER 
  OVER STONY POINT...MOVING SOUTHEAST AT 30 KNOTS.

* THIS STRONG THUNDERSTORM WILL BE NEAR
  DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE AT
  830 PM EDT...
  DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE AT
  910 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MARINERS CAN EXPECT GUSTY WINDS...HIGH WAVES...DANGEROUS LIGHTNING...
AND HEAVY RAINS. BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY...UNTIL
THIS STORM PASSES.

&&

LAT...LON 3962 7554 3950 7553 3955 7542 3947 7554
      3942 7525 3943 7523 3942 7523 3938 7534
      3936 7536 3919 7514 3929 7498 3920 7503
      3911 7484 3878 7511 3877 7514 3925 7556
      3926 7542 3945 7561
TIME...MOT...LOC 0014Z 314DEG 28KT 3950 7554

$$

ROBERTSON
1 follow-up statement
345 
FZUS71 KPHI 040053
MWSPHI

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
853 PM EDT SUN JUN 3 2012

ANZ430-431-040145-
/O.CON.KPHI.MA.W.0013.000000T0000Z-120604T0145Z/
853 PM EDT SUN JUN 3 2012

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 945 PM EDT...

FOR THE FOLLOWING AREAS...
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE OVER
ATLANTIC COASTAL WATERS...
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE OVER
ATLANTIC COASTAL WATERS...
INCLUDING CAPE HENLOPEN...BRANDYWINE SHOAL LIGHT...BROWN SHOAL
LIGHT...CROSS LEDGE LIGHT...EAST POINT...FOURTEEN FOOT BANK LIGHT...
MIAH MAULL LIGHT...SEA BREEZE AND SHIP JOHN SHOAL LIGHT...

AT 849 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM...PRODUCING STRONG WINDS 45 KNOTS OR GREATER 
OVER MIAH MAULL LIGHT...MOVING SOUTHEAST AT 30 KNOTS.

THIS STRONG THUNDERSTORM WILL BE NEAR
  4 NM NORTHEAST OF FOURTEEN FOOT BANK LIGHT BY 900 PM EDT...
  4 NM NORTHEAST OF BRANDYWINE SHOAL LIGHT BY 905 PM EDT...
  7 NM NORTHEAST OF BROWN SHOAL LIGHT BY 915 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MARINERS CAN EXPECT GUSTY WINDS...HIGH WAVES...DANGEROUS LIGHTNING...
AND HEAVY RAINS. BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY...UNTIL
THIS STORM PASSES.

&&

LAT...LON 3925 7543 3927 7542 3928 7544 3934 7534
      3919 7514 3921 7511 3922 7505 3928 7499
      3920 7503 3911 7484 3910 7487 3912 7489
      3896 7496 3878 7511 3877 7514 3907 7540
      3919 7540 3925 7547
TIME...MOT...LOC 0053Z 314DEG 31KT 3914 7517

$$

ROBERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 8:10 PM EDTSpecial Weather StatementPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more95 min
Jun 3, 8:16 PM EDTSpecial Marine WarningPHI89 min
Jun 3, 9:36 PM EDTSpecial Marine WarningPHI84 min
Jun 4, 3:54 AM EDTSmall Craft AdvisoryPHI33 hr
Jun 4, 4:24 AM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more23 hr
Jun 4, 10:44 AM EDTSpecial Weather StatementPHIMonmouth2 hr
Jun 4, 2:27 PM EDTCoastal Flood WarningPHIAtlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more9 hr
Jun 3, 9:53 PM EDTSpecial Weather StatementPHISussex67 min

Nearby

Special Marine Warnings in New Jersey, 2012Every special marine warning in 2012

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.