Alert archive / New Jersey / Special Weather Statements in 2015

Special Weather Statement, NWS Philadelphia/Mount Holly

August 4, 2015Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 4, 2015, 10:56 PM EDT for Cape May County, New Jersey. It was in force for 19 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
Aug 4, 2015, 10:56 PM EDT (02:56 UTC)
Expired
Aug 4, 2015, 11:15 PM EDT
In force
19 min
Issued by
NWS Philadelphia/Mount Holly

County Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 58 km from the middle of the area, began a volume at 02:56 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 00:00Z, 2.9 hours before the alert went out and 133 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 00:00Z on 2015-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 961 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 00:00Z on 2015-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.193958Sfc1 km3 km6 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
961 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
1098 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
75 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.

858 
WWUS81 KPHI 050256
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1056 PM EDT TUE AUG 4 2015
 
NJZ023-024-050315-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-
1056 PM EDT TUE AUG 4 2015

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

AT 1056 PM EDT...A STRONG THUNDERSTORM WAS OVER RIO GRANDE...OR NEAR
CAPE MAY...MOVING EAST AT 40 MPH.

WIND GUSTS UP TO 30 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY 
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED 
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS 
STORM...AND THE STORM WILL AFFECT THE BEACHES. FOR YOUR 
SAFETY...IMMEDIATELY MOVE OFF THE BEACH AND SEEK SHELTER INDOORS.

THIS STORM WILL BE NEAR...
  SCOTCH BONNET AROUND 1100 PM EDT.
  NORTH WILDWOOD...AVALON AND STONE HARBOR AROUND 1105 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE WHITESBORO-BURLEIGH...
ERMA...WEST WILDWOOD AND VILLAS.

LAT...LON 3896 7496 3897 7494 3897 7496 3913 7489
      3911 7478 3909 7480 3908 7477 3909 7475
      3911 7476 3909 7473 3910 7473 3910 7471
      3903 7479 3899 7479 3894 7486 3893 7492
TIME...MOT...LOC 0256Z 286DEG 34KT 3903 7486 
$$

ROBERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 8:04 PM EDTSpecial Weather StatementPHICumberland56 min
Aug 4, 10:07 PM EDTSpecial Weather StatementPHICape May53 min
Aug 4, 10:30 PM EDTAreal Flood AdvisoryPHICape May4 hr
Aug 4, 10:40 PM EDTSpecial Marine WarningPHI50 min
Aug 4, 11:22 PM EDTSpecial Marine WarningPHI53 min
Aug 4, 10:44 PM EDTSpecial Weather StatementPHITalbot31 min
Aug 4, 11:10 PM EDTSpecial Weather StatementPHICaroline, Talbot50 min
Aug 4, 11:28 PM EDTSevere Thunderstorm WarningPHICaroline, Talbot32 min
Aug 4, 9:01 PM EDTSpecial Weather StatementPHINew Castle59 min
Aug 4, 10:24 PM EDTSpecial Weather StatementPHISussex51 min
Aug 4, 11:06 PM EDTSpecial Weather StatementPHISussex24 min
Aug 4, 11:18 PM EDTAreal Flood AdvisoryPHISussex4 hr
Aug 4, 11:35 PM EDTFlash Flood WarningPHISussex4 hr
Aug 4, 11:43 PM EDTSpecial Weather StatementPHISussex47 min
Aug 5, 12:04 AM EDTSpecial Weather StatementPHISussex41 min
Aug 5, 12:39 AM EDTFlash Flood WarningPHISussex4 hr
Aug 5, 12:52 AM EDTSpecial Weather StatementPHISussex23 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.