Alert archive / New Jersey / Special Marine Warnings in 2012

Special Marine Warning 39, NWS Philadelphia/Mount Holly

June 25, 2012

NWS Philadelphia/Mount Holly issued this special marine warning at Jun 25, 2012, 2:29 PM EDT. It was in force for 49 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 25, 2012, 2:29 PM EDT (18:29 UTC)
Expired: Jun 25, 2012, 3:18 PM EDT
In force: 49 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

The radar

The Philadelphia radar (KDIX), 115 km from the middle of the area, began a volume at 18:30 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, 6.5 hours before the alert went out and 175 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 851 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 1274 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

935 
WHUS51 KPHI 251829
SMWPHI
ANZ452-470-251930-
/O.NEW.KPHI.MA.W.0039.120625T1829Z-120625T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
229 PM EDT MON JUN 25 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
  THE ATLANTIC COASTAL WATERS BETWEEN LITTLE EGG INLET AND GREAT EGG
  INLET NJ OUT TO 20 NM...
  THE ATLANTIC COASTAL WATERS BETWEEN SANDY HOOK NJ AND FENWICK
  ISLAND DE OUT 20 TO 40 NM...

* UNTIL 330 PM EDT

* AT 225 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM...PRODUCING STRONG WINDS 34 KNOTS OR GREATER OVER
  COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
  NM...OR ABOUT 8 NM SOUTHEAST OF ATLANTIC CITY REEF...MOVING
  SOUTHEAST AT 25 KNOTS.

* THIS STRONG THUNDERSTORM WILL BE NEAR
  WATERS FROM SANDY HOOK NJ TO FENWICK ISLAND DE FROM 20 TO 40 NM AT
  240 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE...KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.

REPORT SEVERE WEATHER TO THE COAST GUARD OR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE.

&&

LAT...LON 3898 7374 3885 7390 3884 7390 3882 7392
      3911 7429 3928 7413 3906 7367
TIME...MOT...LOC 1829Z 304DEG 26KT 3915 7414

$$

HEAVENER

2 follow-up statements

283 
FZUS71 KPHI 251854
MWSPHI

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
254 PM EDT MON JUN 25 2012

ANZ452-251904-
/O.CAN.KPHI.MA.W.0039.000000T0000Z-120625T1930Z/
254 PM EDT MON JUN 25 2012

...SPECIAL MARINE WARNING CANCELLED...

THE AFFECTED AREA WAS...
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20 NM
OVER ATLANTIC COASTAL WATERS...

LAT...LON 3896 7377 3892 7382 3909 7409 3920 7397
      3906 7367
TIME...MOT...LOC 1854Z 304DEG 26KT 3905 7395

$$

ANZ470-251930-
/O.CON.KPHI.MA.W.0039.000000T0000Z-120625T1930Z/
254 PM EDT MON JUN 25 2012

...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 330 PM EDT...

FOR THE FOLLOWING AREA...
WATERS FROM SANDY HOOK NJ TO FENWICK ISLAND DE FROM 20 TO 40 NM OVER
ATLANTIC COASTAL WATERS...

AT 251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM...PRODUCING STRONG WINDS 34 KNOTS OR GREATER
OVER WATERS FROM SANDY HOOK NJ TO FENWICK ISLAND DE FROM 20 TO 40
NM...OR ABOUT 11 NM NORTHEAST OF DEEPWATER REEF...MOVING SOUTHEAST AT
25 KNOTS.

THIS STRONG THUNDERSTORM WILL BE NEAR
  WATERS FROM SANDY HOOK NJ TO FENWICK ISLAND DE FROM 20 TO 40 NM AT
  310 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.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE...KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.

REPORT SEVERE WEATHER TO THE COAST GUARD OR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE.

&&

LAT...LON 3896 7377 3892 7382 3909 7409 3920 7397
      3906 7367
TIME...MOT...LOC 1854Z 304DEG 26KT 3905 7395

$$

HEAVENER

001 
FZUS71 KPHI 251918
MWSPHI

MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
318 PM EDT MON JUN 25 2012

ANZ470-251928-
/O.CAN.KPHI.MA.W.0039.000000T0000Z-120625T1930Z/
318 PM EDT MON JUN 25 2012

...SPECIAL MARINE WARNING CANCELLED...

THE AFFECTED AREA WAS...
WATERS FROM SANDY HOOK NJ TO FENWICK ISLAND DE FROM 20 TO 40 NM OVER
ATLANTIC COASTAL WATERS...

LAT...LON 3896 7377 3892 7382 3909 7409 3920 7397
      3906 7367
TIME...MOT...LOC 1918Z 304DEG 26KT 3895 7377

$$

HEAVENER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 12:25 AM EDT	Special Weather Statement	PHI	Atlantic, Cape May, Cumberland	95 min
Jun 25, 3:44 AM EDT	Small Craft Advisory	PHI		41 hr
Jun 25, 7:05 AM EDT	Special Weather Statement	PHI	Hunterdon, Mercer	55 min
Jun 25, 7:44 AM EDT	Special Weather Statement	PHI	Mercer, Middlesex, Monmouth	61 min
Jun 25, 7:46 AM EDT	Special Weather Statement	PHI	Mercer, Middlesex, Monmouth	59 min
Jun 25, 7:58 AM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	47 min
Jun 25, 8:07 AM EDT	Special Marine Warning	PHI		83 min
Jun 25, 8:26 AM EDT	Areal Flood Advisory	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset	108 min
Jun 25, 8:46 AM EDT	Special Weather Statement	PHI	Burlington, Monmouth, Ocean	59 min
Jun 25, 9:07 AM EDT	Special Marine Warning	PHI		38 min
Jun 25, 9:10 AM EDT	Special Marine Warning	PHI		95 min
Jun 25, 9:37 AM EDT	Special Weather Statement	PHI	Atlantic, Cape May	53 min
Jun 25, 10:04 AM EDT	Special Marine Warning	PHI		56 min
Jun 25, 10:30 AM EDT	Small Craft Advisory for Hazardous Seas	PHI		7 hr
Jun 25, 10:45 AM EDT	Special Marine Warning	PHI		60 min
Jun 25, 11:32 AM EDT	Special Weather Statement	PHI	Atlantic	28 min
Jun 25, 11:53 AM EDT	Special Weather Statement	PHI	Atlantic	37 min
Jun 25, 12:10 PM EDT	Special Weather Statement	PHI	Atlantic	35 min
Jun 25, 12:34 PM EDT	Special Weather Statement	PHI	Cape May	56 min
Jun 25, 1:22 PM EDT	Special Marine Warning	PHI		53 min
Jun 25, 1:27 PM EDT	Special Weather Statement	PHI	Atlantic	63 min
Jun 25, 1:30 PM EDT	Special Marine Warning	PHI		60 min
Jun 25, 2:10 PM EDT	Special Marine Warning	PHI		65 min
Jun 25, 2:24 PM EDT	Special Marine Warning	PHI		66 min
Jun 25, 3:10 PM EDT	Special Marine Warning	PHI		65 min
Jun 25, 3:23 PM EDT	Special Marine Warning	PHI		40 min
Jun 25, 3:25 PM EDT	Special Marine Warning	PHI		65 min
Jun 25, 4:01 PM EDT	Special Weather Statement	PHI	Middlesex, Somerset	44 min
Jun 25, 4:54 PM EDT	Special Weather Statement	PHI	Monmouth	66 min
Jun 25, 5:12 PM EDT	Small Craft Advisory	PHI		28 hr
Jun 25, 5:20 PM EDT	Special Weather Statement	PHI	Ocean	55 min
Jun 25, 6:57 PM EDT	Special Weather Statement	PHI	Ocean	63 min
Jun 25, 7:16 PM EDT	Special Weather Statement	PHI	Ocean	59 min
Jun 25, 7:52 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Ocean	75 min
Jun 25, 8:32 AM EDT	Special Weather Statement	PHI	Sussex	28 min
Jun 25, 8:49 AM EDT	Severe Thunderstorm Warning	PHI	Sussex	26 min
Jun 25, 9:17 AM EDT	Special Weather Statement	PHI	Sussex	13 min
Jun 25, 10:14 AM EDT	Special Weather Statement	PHI	Sussex	61 min
Jun 25, 10:53 AM EDT	Severe Thunderstorm Warning	PHI	Sussex	26 min
Jun 25, 1:46 PM EDT	Special Weather Statement	PHI	Sussex	29 min

Nearby

Special Marine Warnings in New Jersey, 2012 Every 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.