Alert archive / New Jersey / Special Marine Warnings in 2012

Special Marine Warning 2, NWS Philadelphia/Mount Holly

January 27, 2012

NWS Philadelphia/Mount Holly issued this special marine warning at Jan 27, 2012, 10:27 AM EST. It was in force for 63 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
Jan 27, 2012, 10:27 AM EST (15:27 UTC)
Expired
Jan 27, 2012, 11:30 AM EST
In force
63 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

The radar

The Dover AFB radar (KDOX), 59 km from the middle of the area, began a volume at 15:28 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, 3.5 hours before the alert went out and 158 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 2012-01-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 12:00Z on 2012-01-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 323 square meters per square second.1939587897117Sfc1 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
601 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
323 m²/s²
0-3 km storm-relative helicity
319 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.

924 
WHUS51 KPHI 271527
SMWPHI
ANZ430-451-271630-
/O.NEW.KPHI.MA.W.0002.120127T1527Z-120127T1630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1027 AM EST FRI JAN 27 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
  THE DELAWARE BAY NORTH OF A LINE BETWEEN EAST POINT NJ AND
  SLAUGHTER BEACH DE...
  THE ATLANTIC COASTAL WATERS BETWEEN MANASQUAN INLET AND LITTLE EGG
  INLET NJ OUT TO 20 NM...


  INCLUDING WOODLAND BEACH...CROSS LEDGE LIGHT...FORKED RIVER...
  FORTESQUE BEACH...SEA BREEZE...SHIP JOHN SHOAL LIGHT AND STONY
  POINT...

* UNTIL 1130 AM EST

* AT 1023 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF THUNDERSTORMS...PRODUCING STRONG WINDS 34 KNOTS OR GREATER
  FROM STONY POINT TO 21 NM SOUTHWEST OF WOODLAND BEACH...MOVING EAST
  AT 45 KNOTS.

* THESE STRONG THUNDERSTORMS WILL BE NEAR
  OVER WOODLAND BEACH BY 1040 AM EST
  OVER SHIP JOHN SHOAL LIGHT BY 1050 AM EST
  OVER CROSS LEDGE LIGHT AND SEA BREEZE BY 1055 AM EST
  OVER FORTESQUE BEACH BY 1100 AM EST
  OVER FORKED RIVER BY 1130 AM EST

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 3954 7543 3955 7542 3945 7549 3939 7542
      3946 7538 3936 7539 3989 7399 3957 7451
      3938 7534 3921 7510 3904 7541 3919 7540
      3924 7557 3926 7542 3944 7558
TIME...MOT...LOC 1527Z 252DEG 45KT 3951 7538 3920 7581

$$

TFG
1 follow-up statement
829 
FZUS71 KPHI 271540
MWSPHI

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1040 AM EST FRI JAN 27 2012

ANZ451-271549-
/O.CAN.KPHI.MA.W.0002.000000T0000Z-120127T1630Z/
1040 AM EST FRI JAN 27 2012

...SPECIAL MARINE WARNING CANCELLED...

THE AFFECTED AREA WAS...
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM
OVER ATLANTIC COASTAL WATERS...
INCLUDING FORKED RIVER...

THE LINE OF SHOWERS AND THUNDERSTORMS WILL NOT REACH THIS AREA IN THE 
TIME OF THE WARNING. IF NECESSARY A NEW SPECIAL MARINE WARNING WILL BE
ISSUED.


LAT...LON 3944 7558 3927 7542 3924 7553 3919 7540
      3904 7541 3921 7510 3919 7515 3932 7528
      3942 7523 3929 7529 3935 7536 3939 7531
      3936 7539 3943 7539 3939 7542 3945 7549
      3954 7543 3946 7550
TIME...MOT...LOC 1539Z 252DEG 45KT 3955 7519 3924 7563

$$

ANZ430-271630-
/O.CON.KPHI.MA.W.0002.000000T0000Z-120127T1630Z/
1040 AM EST FRI JAN 27 2012

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1130 AM EST...

FOR THE FOLLOWING AREA...
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE OVER
ATLANTIC COASTAL WATERS...
INCLUDING WOODLAND BEACH...CROSS LEDGE LIGHT...FORTESQUE BEACH...SEA
BREEZE...SHIP JOHN SHOAL LIGHT AND STONY POINT...

AT 1036 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF THUNDERSTORMS...PRODUCING STRONG WINDS 34 KNOTS OR
GREATER FROM 14 NM EAST OF STONY POINT TO 11 NM SOUTHWEST OF WOODLAND
BEACH...MOVING EAST AT 45 KNOTS.

THESE STRONG THUNDERSTORMS WILL BE NEAR
  OVER SHIP JOHN SHOAL LIGHT BY 1055 AM EST...
  OVER CROSS LEDGE LIGHT AND SEA BREEZE BY 1100 AM EST...
  OVER FORTESQUE BEACH BY 1105 AM EST...

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 3944 7558 3927 7542 3924 7553 3919 7540
      3904 7541 3921 7510 3919 7515 3932 7528
      3942 7523 3929 7529 3935 7536 3939 7531
      3936 7539 3943 7539 3939 7542 3945 7549
      3954 7543 3946 7550
TIME...MOT...LOC 1539Z 252DEG 45KT 3955 7519 3924 7563

$$
 
TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 27, 4:54 AM ESTGale WarningPHI20 hr
Jan 27, 8:27 AM ESTSpecial Weather StatementPHIGloucester, Salem93 min
Jan 27, 9:38 AM ESTSpecial Marine WarningPHI82 min
Jan 27, 10:31 AM ESTSpecial Weather StatementPHIGloucester, Salem29 min
Jan 27, 11:06 AM ESTSpecial Weather StatementPHIAtlantic, Burlington, Camden, Ocean54 min
Jan 27, 2:15 PM ESTWind AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more6 hr
Jan 27, 9:34 AM ESTSpecial Weather StatementPHIKent, New Castle56 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.