Alert archive / New Jersey / Special Weather Statements in 2019

Special Weather Statement, NWS Philadelphia/Mount Holly

August 3, 2019Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 3, 2019, 9:36 PM EDT for Sussex County, New Jersey. It was in force for 54 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 3, 2019, 9:36 PM EDT (01:36 UTC)
Expired
Aug 3, 2019, 10:30 PM EDT
In force
54 min
Issued by
NWS Philadelphia/Mount Holly

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 127 km from the middle of the area, began a volume at 01:39 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

Brookhaven, NY (KOKX), launched 00:00Z, 1.6 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, Brookhaven, NY at 00:00Z on 2019-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 767 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, Brookhaven, NY at 00:00Z on 2019-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.193958Sfc1 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
767 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
928 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted.

527 
WWUS81 KPHI 040136
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
936 PM EDT Sat Aug 3 2019

NJZ001-007-008-040230-
Morris-Sussex-Warren-
936 PM EDT Sat Aug 3 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTH CENTRAL MORRIS...
SUSSEX AND NORTHEASTERN WARREN COUNTIES...

At 936 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Vernon Valley to near Echo Lake.
Movement was east at 15 mph.

Wind gusts up to 40 mph and pea size hail are possible with these
storms.

Locations impacted include...
Newton, Hopatcong, Blairstown, Mount Arlington, Franklin, Stanhope,
Hamburg, Ogdensburg, Sussex, Branchville, Andover, Flatbrookville,
Lake Mohawk, Greendell, Millbrook, Vernon Valley, Five Points, Green
Pond, Pellettown and Crandon Lakes.

If outdoors, consider seeking shelter inside a building.

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

LAT...LON 4120 7437 4109 7450 4104 7450 4105 7445
      4102 7443 4103 7442 4102 7440 4091 7467
      4100 7512 4104 7503 4109 7497 4109 7499
      4129 7455
TIME...MOT...LOC 0136Z 291DEG 12KT 4126 7452 4103 7511 

$$

Iovino

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 8:51 PM EDTSpecial Weather StatementPHISussex54 min
Aug 4, 12:29 PM EDTSpecial Marine WarningPHI61 min
Aug 4, 1:22 PM EDTSpecial Marine WarningPHI53 min
Aug 4, 12:06 PM EDTSpecial Weather StatementPHISussex39 min
Aug 4, 12:28 PM EDTSevere Thunderstorm WarningPHISussex47 min
Aug 4, 12:51 PM EDTAreal Flood AdvisoryPHISussex51 min
Aug 4, 3:30 PM EDTSpecial Weather StatementPHISussex45 min

Nearby

Special Weather Statements in New Jersey, 2019Every special weather statement in 2019

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.