Alert archive / New Jersey / Special Weather Statements in 2015

Special Weather Statement, NWS Philadelphia/Mount Holly

October 18, 2015Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 18, 2015, 6:30 PM EDT for Cape May County, New Jersey. It was in force for 45 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
Oct 18, 2015, 6:30 PM EDT (22:30 UTC)
Expired
Oct 18, 2015, 7:15 PM EDT
In force
45 min
Issued by
NWS Philadelphia/Mount Holly

County Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 53 km from the middle of the area, began a volume at 22:32 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, 10.5 hours before the alert went out and 129 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 2015-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2015-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -67 square meters per square second.1939587897117136156Sfc1 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
1000 m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
-67 m²/s²
0-3 km storm-relative helicity
-2 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.

426 
WWUS81 KPHI 182230
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
630 PM EDT SUN OCT 18 2015
 
NJZ023-024-182315-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-
630 PM EDT SUN OCT 18 2015

...A THUNDERSTORM WILL AFFECT SOUTHWESTERN CAPE MAY COUNTY...

AT 629 PM EDT...A STRONG THUNDERSTORM WAS NEAR GREEN CREEK...OR 10
MILES NORTH OF CAPE MAY...MOVING SOUTHEAST AT 25 MPH.

WIND GUSTS UP TO 40 MPH AND PEA SIZE HAIL OR GRAUPEL 
ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
CAPE MAY...NORTH WILDWOOD...WILDWOOD CREST...AVALON...WEST CAPE
MAY...RIO GRANDE...CAPE MAY COURT HOUSE...SCOTCH BONNET...GOSHEN...
DIAMOND BEACH...GREEN CREEK...NORTH CAPE MAY...VILLAS...WEST
WILDWOOD...ERMA AND WHITESBORO-BURLEIGH.

LAT...LON 3893 7497 3896 7496 3897 7494 3897 7496
      3902 7495 3911 7489 3917 7489 3917 7484
      3910 7471 3903 7480 3899 7479 3894 7486
TIME...MOT...LOC 2229Z 302DEG 23KT 3908 7497 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 4:30 PM EDTSpecial Marine WarningPHI2 hr
Oct 18, 5:58 PM EDTSpecial Marine WarningPHI2 hr
Oct 18, 6:14 PM EDTSpecial Weather StatementPHIAtlantic31 min
Oct 18, 6:17 PM EDTSpecial Weather StatementPHICape May58 min
Oct 18, 3:22 AM EDTFrost AdvisoryPHIDelaware, Philadelphia11 hr
Oct 18, 5:49 PM EDTSpecial Weather StatementPHIMontgomery56 min
Oct 18, 5:38 PM EDTSpecial Weather StatementPHICaroline82 min
Oct 18, 4:36 PM EDTSpecial Weather StatementPHIKent69 min
Oct 18, 4:54 PM EDTSpecial Weather StatementPHIKent, Sussex66 min

Nearby

Special Weather Statements in New Jersey, 2015Every special weather statement in 2015

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.