Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

July 3, 2021Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 3, 2021, 4:09 PM EDT for Cape May County, New Jersey. It was in force for 36 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
Jul 3, 2021, 4:09 PM EDT (20:09 UTC)
Expired
Jul 3, 2021, 4:45 PM EDT
In force
36 min
Issued by
NWS Philadelphia/Mount Holly

County Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 82 km from the middle of the area, began a volume at 20:11 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, 8.2 hours before the alert went out and 151 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 2021-07-03Temperature 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 2021-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897117136Sfc1 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
1396 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

855 
WWUS81 KPHI 032009
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
409 PM EDT Sat Jul 3 2021

NJZ023-024-032045-
Atlantic Coastal Cape May-Cape May-
409 PM EDT Sat Jul 3 2021

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

At 409 PM EDT, a strong thunderstorm was located over Dennisville, or
11 miles southwest of Ocean City, moving southeast at 25 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Ocean City, Woodbine, Sea Isle City, Avalon, Stone Harbor, Cape May
Court House, Scotch Bonnet, Dennisville, Goshen, Strathmere and
Seaville.

This includes Garden State Parkway between mile markers 9 and 23.
 
If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 3914 7442 3911 7446 3894 7458 3911 7492
      3929 7482 3917 7440
TIME...MOT...LOC 2009Z 296DEG 21KT 3918 7479 

$$

MPS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 9:00 PM EDTSpecial Weather StatementPHIBurlington45 min
Jul 3, 2:28 PM EDTSpecial Weather StatementPHISalem47 min
Jul 3, 2:32 PM EDTSpecial Weather StatementPHICape May43 min
Jul 3, 2:53 PM EDTSpecial Weather StatementPHICumberland37 min
Jul 3, 3:15 PM EDTSpecial Weather StatementPHICumberland45 min
Jul 3, 5:44 PM EDTAreal Flood AdvisoryPHIAtlantic2 hr
Jul 3, 5:50 PM EDTAreal Flood WarningPHIWarren3 hr
Jul 3, 1:38 PM EDTSpecial Weather StatementPHIDelaware52 min
Jul 3, 2:03 PM EDTAreal Flood AdvisoryPHIDelaware2 hr
Jul 3, 6:39 PM EDTAreal Flood AdvisoryPHIBucks, Lehigh, Northampton2 hr
Jul 3, 3:34 PM EDTSpecial Weather StatementPHINew Castle26 min
Jul 3, 5:05 PM EDTSpecial Weather StatementPHISussex25 min
Jul 3, 4:59 PM EDTSpecial Weather StatementPHICaroline31 min

Nearby

Special Weather Statements in New Jersey, 2021Every special weather statement in 2021

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.