Alert archive / New Jersey / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

September 15, 2011Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Sep 15, 2011, 3:13 PM EDT for Atlantic County, New Jersey. It was in force for 47 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
Sep 15, 2011, 3:13 PM EDT (19:13 UTC)
Expired
Sep 15, 2011, 4:00 PM EDT
In force
47 min
Issued by
NWS Philadelphia/Mount Holly

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 19:17 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.2 hours before the alert went out and 139 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, Phillips Aaf/Abe, MD at 12:00Z on 2011-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 273 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, Phillips Aaf/Abe, MD at 12:00Z on 2011-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
273 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
851 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

824 
WWUS81 KPHI 151913
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
313 PM EDT THU SEP 15 2011

NJZ022>025-152000-
ATLANTIC NJ-ATLANTIC COASTAL CAPE MAY NJ-CAPE MAY NJ-
COASTAL ATLANTIC NJ-
313 PM EDT THU SEP 15 2011

...A STRONG THUNDERSTORM WILL AFFECT ATLANTIC AND CAPE MAY
COUNTIES...

AT 311 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 12 MILES SOUTHWEST OF ATLANTIC CITY...MOVING
NORTHEAST AT 25 MPH. THE THUNDERSTORM WILL BE NEAR VENTNOR CITY...
MARGATE CITY AROUND 330 PM...ATLANTIC CITY AND BRIGANTINE AROUND 345
PM.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.

EXPECT SMALL HAIL AND FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING
FROM THIS STORM.

LAT...LON 3937 7440 3936 7440 3929 7452 3930 7454
      3928 7455 3925 7459 3919 7464 3917 7469
      3934 7478 3948 7445 3950 7438 3948 7430
      3945 7429

$$

FORECASTER: NIERENBERG

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 9:27 PM EDTSpecial Weather StatementPHIHunterdon, Warren2 hr
Sep 14, 10:27 PM EDTSpecial Weather StatementPHIHunterdon63 min
Sep 14, 10:58 PM EDTSpecial Weather StatementPHISussex, Warren62 min
Sep 14, 11:17 PM EDTSevere Thunderstorm WarningPHISussex58 min
Sep 14, 11:42 PM EDTSpecial Weather StatementPHISussex63 min
Sep 14, 11:50 PM EDTSevere Thunderstorm WarningPHISussex23 min
Sep 15, 6:50 AM EDTGale WarningPHI22 hr
Sep 15, 3:33 PM EDTSpecial Marine WarningPHI12 min
Sep 15, 3:44 PM EDTSpecial Marine WarningPHI61 min
Sep 15, 3:48 PM EDTSpecial Marine WarningPHI57 min
Sep 15, 4:10 PM EDTSpecial Weather StatementPHIAtlantic95 min
Sep 15, 7:48 PM EDTWind AdvisoryPHICape May4 hr
Sep 14, 9:02 PM EDTAreal Flood AdvisoryPHIBerks3 hr
Sep 14, 10:14 PM EDTAreal Flood AdvisoryPHILehigh, Northampton103 min
Sep 14, 10:22 PM EDTSpecial Weather StatementPHIMonroe53 min
Sep 15, 6:28 AM EDTSpecial Weather StatementPHIBerks, Lehigh62 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.