Alert archive / New Jersey / Special Weather Statements in 2018

Special Weather Statement, NWS Philadelphia/Mount Holly

October 11, 2018Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 11, 2018, 4:39 PM EDT for Atlantic 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: Oct 11, 2018, 4:39 PM EDT (20:39 UTC)
Expired: Oct 11, 2018, 5:15 PM EDT
In force: 36 min
Issued by: NWS Philadelphia/Mount Holly

County Atlantic County, NJ

The radar

The Dover AFB radar (KDOX), 40 km from the middle of the area, began a volume at 20:37 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, 8.7 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 983 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 467 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

As transmitted.

614 
WWUS81 KPHI 112039
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
439 PM EDT THU OCT 11 2018

DEZ002-003-NJZ021>023-027-112115-
Inland Sussex-Kent-Cumberland-Atlantic-Cape May-Southeastern
Burlington-
439 PM EDT THU OCT 11 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTH CENTRAL SUSSEX...
SOUTHEASTERN KENT...SOUTHWESTERN ATLANTIC...SOUTHEASTERN
CUMBERLAND...NORTHWESTERN CAPE MAY AND SOUTHEASTERN BURLINGTON
COUNTIES...

At 439 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Corbin City to near Milford.
Movement was north at 20 mph.

Winds up to 40 mph are possible with these storms.

Locations impacted include...
Vineland, Millville, Cumberland, Milford, Egg Harbor City, Laurel
Lake, Woodbine, Estell Manor, Corbin City, Ellendale, Bowers,
Leesburg, Dorothy, Bricksboro, Eldora, Mauricetown, Belleplain
Forest, Mays Landing, English Creek and Port Norris.

LAT...LON 3878 7544 3908 7541 3907 7541 3906 7540
      3903 7535 3918 7515 3924 7517 3971 7450
      3930 7468 3916 7489 3919 7497 3919 7503
      3922 7503 3921 7511 3900 7532 3893 7532
      3889 7528
TIME...MOT...LOC 2039Z 192DEG 19KT 3933 7473 3890 7536 

$$

SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 11, 3:24 AM EDT	Gale Warning	PHI		33 hr
Oct 11, 3:24 AM EDT	Wind Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more	31 hr
Oct 11, 1:27 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	33 min
Oct 11, 1:43 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	7 hr
Oct 11, 2:39 PM EDT	Areal Flood Advisory	PHI	Warren	4 hr
Oct 11, 3:58 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset	4 hr
Oct 11, 4:41 PM EDT	Special Marine Warning	PHI		34 min
Oct 11, 5:45 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	77 min
Oct 11, 7:15 PM EDT	Areal Flood Warning	PHI	Hunterdon, Somerset	4 hr
Oct 11, 11:19 AM EDT	Areal Flood Advisory	PHI	Carbon, Monroe	3 hr
Oct 11, 7:50 PM EDT	Special Weather Statement	PHI	Kent	25 min
Oct 11, 7:00 PM EDT	Areal Flood Advisory	PHI	Caroline, Queen Anne's, Talbot	4 hr

Nearby

Special Weather Statements in New Jersey, 2018 Every 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.