Alert archive / New Jersey / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

May 30, 2011Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at May 30, 2011, 6:39 AM EDT for Ocean County, New Jersey. It was in force for 66 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
May 30, 2011, 6:39 AM EDT (10:39 UTC)
Expired
May 30, 2011, 7:45 AM EDT
In force
66 min
Issued by
NWS Philadelphia/Mount Holly

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 15 km from the middle of the area, began a volume at 10:41 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

Brookhaven, NY (KOKX), launched 00:00Z, 10.7 hours before the alert went out and 157 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 2011-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 264 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 00:00Z on 2011-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
264 J/kg
Mixed-layer CIN
-170 J/kg
Mixed-layer LCL
822 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
58 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.

338 
WWUS81 KPHI 301039
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
639 AM EDT MON MAY 30 2011

NJZ013-014-019-020-026-027-PAZ069-071-301145-
BUCKS PA-COASTAL OCEAN NJ-EASTERN MONMOUTH NJ-
NORTHWESTERN BURLINGTON NJ-OCEAN NJ-PHILADELPHIA PA-
SOUTHEASTERN BURLINGTON NJ-WESTERN MONMOUTH NJ-
639 AM EDT MON MAY 30 2011

...STRONG THUNDERSTORMS WILL AFFECT BUCKS...BURLINGTON...MONMOUTH...
OCEAN AND PHILADELPHIA COUNTIES...

AT 637 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES SOUTH OF
TRENTON TO 17 MILES SOUTH OF TRENTON...MOVING EAST AT 45 MPH. THE
THUNDERSTORMS WILL BE NEAR GEORGETOWN...NEW EGYPT AROUND 645 AM...
WOODRUFF...JACKSON AROUND 700 AM...LEISURE KNOLL...SILVERTON AROUND
715 AM...POINT PLEASANT AND BRIELLE AROUND 730 AM.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.

EXPECT INTENSE LIGHTNING FROM THESE STORMS. DO NOT SEEK SHELTER UNDER
TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM
APPROACHES.

LAT...LON 4000 7407 3992 7406 3974 7410 3977 7415
      3977 7412 3980 7413 3982 7410 3991 7409
      3989 7412 3986 7412 3976 7418 3998 7503
      4018 7488 4009 7462 4020 7404

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 4:39 AM EDTSpecial Weather StatementPHIWarren66 min
May 30, 4:54 AM EDTSpecial Weather StatementPHIMorris, Sussex66 min
May 30, 4:59 AM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren61 min
May 30, 5:11 AM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren64 min
May 30, 6:04 AM EDTSpecial Weather StatementPHIMercer, Middlesex, Monmouth, Somerset56 min
May 30, 6:26 AM EDTSpecial Weather StatementPHIMercer, Middlesex, Monmouth64 min
May 30, 7:38 AM EDTSpecial Weather StatementPHIOcean22 min
May 30, 3:11 AM EDTSpecial Weather StatementPHICarbon, Monroe64 min
May 30, 3:50 AM EDTSpecial Weather StatementPHICarbon, Monroe55 min

Nearby

Special Weather Statements in New Jersey, 2011Every special weather statement in 2011

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.