Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

July 1, 2021Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 1, 2021, 1:31 PM EDT for Cumberland County, New Jersey. It was in force for 29 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 1, 2021, 1:31 PM EDT (17:31 UTC)
Expired
Jul 1, 2021, 2:00 PM EDT
In force
29 min
Issued by
NWS Philadelphia/Mount Holly

County Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 63 km from the middle of the area, began a volume at 17:31 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, 5.5 hours before the alert went out and 150 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 2021-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1445 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2021-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
1445 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
981 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

998 
WWUS81 KPHI 011731
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
131 PM EDT Thu Jul 1 2021

NJZ021-023-011800-
Cumberland-Cape May-
131 PM EDT Thu Jul 1 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CUMBERLAND AND
NORTHWESTERN CAPE MAY COUNTIES...

At 130 PM EDT, a strong thunderstorm was located over Bivalve, or 12
miles south of Millville, moving east at 20 mph.

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

Locations impacted include...
Woodbine, Mauricetown, Belleplain Forest, Leesburg, Goshen, Bivalve,
Port Norris, Dividing Creek and Eldora.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3914 7485 3918 7518 3929 7512 3931 7480
      3931 7479
TIME...MOT...LOC 1730Z 275DEG 19KT 3920 7506 

$$

CMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 8:37 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer38 min
Jun 30, 8:56 PM EDTSpecial Marine WarningPHI94 min
Jun 30, 9:05 PM EDTSpecial Weather StatementPHISomerset40 min
Jun 30, 9:21 PM EDTSpecial Weather StatementPHISalem39 min
Jun 30, 9:49 PM EDTSpecial Weather StatementPHIMonmouth26 min
Jun 30, 9:51 PM EDTSpecial Marine WarningPHI60 min
Jul 1, 2:58 AM EDTSmall Craft AdvisoryPHI17 hr
Jul 1, 1:10 PM EDTSpecial Weather StatementPHIMonmouth50 min
Jul 1, 1:16 PM EDTSpecial Weather StatementPHIAtlantic29 min
Jul 1, 1:28 PM EDTSpecial Marine WarningPHI62 min
Jul 1, 4:21 PM EDTSpecial Marine WarningPHI114 min
Jul 1, 4:27 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Salem and 1 more48 min
Jul 1, 4:55 PM EDTSevere Thunderstorm WarningPHICape May, Cumberland, Salem80 min
Jul 1, 4:59 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more46 min
Jul 1, 5:02 PM EDTTornado WarningPHIBurlington, Mercer28 min
Jul 1, 5:27 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more93 min
Jul 1, 5:35 PM EDTTornado WarningPHIMercer, Monmouth, Ocean25 min
Jul 1, 5:40 PM EDTSpecial Marine WarningPHI65 min
Jul 1, 5:46 PM EDTSpecial Marine WarningPHI119 min
Jul 1, 6:13 PM EDTSpecial Marine WarningPHI92 min
Jun 30, 8:16 PM EDTSpecial Weather StatementPHIBucks, Montgomery44 min
Jul 1, 2:51 PM EDTSpecial Weather StatementPHIChester, Montgomery39 min
Jul 1, 3:13 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Chester, Lehigh, Montgomery47 min
Jul 1, 3:23 PM EDTAreal Flood AdvisoryPHIChester, Montgomery77 min
Jul 1, 3:48 PM EDTAreal Flood AdvisoryPHIBucks, Delaware, Montgomery, Philadelphia112 min
Jul 1, 3:50 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia40 min
Jul 1, 4:08 PM EDTSevere Thunderstorm WarningPHISussex52 min
Jul 1, 4:08 PM EDTSevere Thunderstorm WarningPHIKent52 min
Jul 1, 4:10 PM EDTAreal Flood AdvisoryPHIKent, New Castle94 min
Jul 1, 4:32 PM EDTSevere Thunderstorm WarningPHIKent, New Castle, Sussex43 min
Jul 1, 4:57 PM EDTTornado WarningPHIKent, Sussex22 min
Jul 1, 5:12 PM EDTSevere Thunderstorm WarningPHIKent, Sussex48 min
Jul 1, 3:12 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's, Talbot48 min
Jul 1, 3:56 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's, Talbot49 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.