Alert archive / New Jersey / Special Weather Statements in 2018

Special Weather Statement, NWS Philadelphia/Mount Holly

August 8, 2018Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 8, 2018, 12:23 AM EDT for Atlantic County, New Jersey. It was in force for 67 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 8, 2018, 12:23 AM EDT (04:23 UTC)
Expired
Aug 8, 2018, 1:30 AM EDT
In force
67 min
Issued by
NWS Philadelphia/Mount Holly

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 50 km from the middle of the area, began a volume at 04:23 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, 4.4 hours before the alert went out and 195 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 2018-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1899 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, Wallops Is Stn, VA at 00:00Z on 2018-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 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
1899 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.3

Open this sounding in Storm Lab

The text

As transmitted.

645 
WWUS81 KPHI 080423
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
1223 AM EDT WED AUG 8 2018

NJZ020-022>027-080530-
Coastal Atlantic-Coastal Ocean-Ocean-Atlantic-Atlantic Coastal Cape
May-Cape May-Southeastern Burlington-
1223 AM EDT WED AUG 8 2018

...A STRONG THUNDERSTORM WILL AFFECT ATLANTIC...SOUTH CENTRAL
OCEAN...NORTHEASTERN CAPE MAY AND SOUTHEASTERN BURLINGTON COUNTIES...

At 1223 AM EDT, a strong thunderstorm was located near Pleasantville,
or 8 miles northwest of Atlantic City, moving east at 15 mph.

Winds up to 40 mph are possible with this storm.

Locations impacted include...
Atlantic City, Ocean City, Barnegat, Pleasantville, Somers Point,
Ventnor City, Brigantine, Northfield, Absecon, Egg Harbor City,
Tuckerton, Weymouth, Estell Manor, Surf City, Port Republic, Corbin
City, Elwood-Magnolia, Beesleys Point, Wading River and Warren Grove.

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.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3966 7418 3956 7433 3961 7420 3950 7429
      3956 7441 3952 7442 3941 7440 3949 7431
      3947 7430 3936 7442 3933 7468 3929 7455
      3918 7468 3953 7487 3985 7420
TIME...MOT...LOC 0423Z 261DEG 13KT 3942 7458 

$$

Meola

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 8:28 PM EDTSpecial Weather StatementPHIMonmouth47 min
Aug 7, 8:46 PM EDTSpecial Weather StatementPHIMercer44 min
Aug 7, 9:06 PM EDTAreal Flood AdvisoryPHIMonmouth114 min
Aug 7, 9:16 PM EDTFlash Flood WarningPHIMiddlesex, Monmouth4 hr
Aug 7, 11:33 PM EDTSpecial Weather StatementPHIAtlantic, Cumberland27 min
Aug 8, 6:40 PM EDTSpecial Weather StatementPHIMiddlesex35 min
Aug 8, 3:02 PM EDTSpecial Weather StatementPHIChester43 min
Aug 8, 3:40 PM EDTSpecial Weather StatementPHIChester35 min
Aug 8, 4:23 PM EDTSpecial Weather StatementPHINew Castle37 min
Aug 7, 8:10 PM EDTSpecial Weather StatementPHITalbot50 min
Aug 7, 8:51 PM EDTSpecial Weather StatementPHICaroline39 min

Nearby

Special Weather Statements in New Jersey, 2018Every special weather statement in 2018

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.