Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

June 4, 2021Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 4, 2021, 6:18 PM EDT for Atlantic County, New Jersey. It was in force for 42 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
Jun 4, 2021, 6:18 PM EDT (22:18 UTC)
Expired
Jun 4, 2021, 7:00 PM EDT
In force
42 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 22:20 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, 10.3 hours before the alert went out and 192 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 2021-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 396 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 2021-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.19395878Sfc1 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
396 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
545 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

008 
WWUS81 KPHI 042218
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
618 PM EDT Fri Jun 4 2021

NJZ022-024>027-042300-
Coastal Atlantic-Coastal Ocean-Atlantic-Atlantic Coastal Cape
May-Southeastern Burlington-
618 PM EDT Fri Jun 4 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT ATLANTIC AND
SOUTHEASTERN BURLINGTON COUNTIES...

At 618 PM EDT, radar indicated strong thunderstorms were located
along a line extending from New Gretna to near Mizpah. Movement was
east at 25 mph.

Wind gusts up to 50 mph and penny size hail are possible with these
storms.

Locations impacted include...
Atlantic City, Ocean City, Pleasantville, Somers Point, Ventnor City,
Brigantine, Northfield, Absecon, Margate City, Egg Harbor City,
Weymouth, Estell Manor, Port Republic, Longport, Pomona, Mays
Landing, English Creek, Wading River, Mizpah and New Gretna.

This includes the following highways...
 Garden State Parkway between mile markers 29 and 52.
 Atlantic City Expressway between mile markers 0 and 21.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3926 7455 3942 7486 3948 7494 3963 7452
      3958 7440 3957 7442 3955 7442 3956 7441
      3954 7439 3955 7437 3954 7434 3955 7433
      3950 7421
TIME...MOT...LOC 2218Z 284DEG 23KT 3958 7447 3945 7481 

$$

JEO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 8:14 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth, Ocean19 min
Jun 3, 8:44 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth30 min
Jun 3, 8:55 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth10 min
Jun 4, 1:07 PM EDTSpecial Weather StatementPHISussex38 min
Jun 4, 1:45 PM EDTAreal Flood AdvisoryPHIWarren97 min
Jun 4, 1:49 PM EDTSevere Thunderstorm WarningPHISussex, Warren41 min
Jun 4, 2:43 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset, Sussex, Warren62 min
Jun 4, 2:49 PM EDTAreal Flood AdvisoryPHIHunterdon, Middlesex, Morris, Somerset, Sussex, Warren70 min
Jun 4, 3:16 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more98 min
Jun 4, 3:18 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer42 min
Jun 4, 3:23 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset67 min
Jun 4, 3:46 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer44 min
Jun 4, 4:12 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean63 min
Jun 4, 4:20 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester40 min
Jun 4, 4:22 PM EDTSpecial Marine WarningPHI53 min
Jun 4, 4:23 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean52 min
Jun 4, 4:30 PM EDTAreal Flood AdvisoryPHIMiddlesex, Monmouth, Ocean63 min
Jun 4, 5:09 PM EDTSpecial Marine WarningPHI2 hr
Jun 4, 5:12 PM EDTSevere Thunderstorm WarningPHIOcean18 min
Jun 4, 5:32 PM EDTSpecial Marine WarningPHI58 min
Jun 4, 6:27 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Cumberland48 min
Jun 4, 7:13 PM EDTSpecial Marine WarningPHI62 min
Jun 4, 1:02 PM EDTSpecial Weather StatementPHILehigh28 min
Jun 4, 1:29 PM EDTAreal Flood AdvisoryPHIBerks, Lehigh2 hr
Jun 4, 2:21 PM EDTSevere Thunderstorm WarningPHIBerks, Bucks, Lehigh, Montgomery21 min
Jun 4, 2:24 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery51 min
Jun 4, 2:27 PM EDTSevere Thunderstorm WarningPHIBerks48 min
Jun 4, 3:14 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery, Philadelphia46 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.