Alert archive / New Jersey / Special Weather Statements in 2020

Special Weather Statement, NWS Philadelphia/Mount Holly

August 2, 2020Warren County, New Jersey; Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 2, 2020, 10:18 PM EDT for Warren County, New Jersey; Northampton County, Pennsylvania. 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
Aug 2, 2020, 10:18 PM EDT (02:18 UTC)
Expired
Aug 2, 2020, 11:00 PM EDT
In force
42 min
Issued by
NWS Philadelphia/Mount Holly

Counties Warren County, NJ, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 120 km from the middle of the area, began a volume at 02:22 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, 2.3 hours before the alert went out and 179 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 2020-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2117 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 2020-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 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
2117 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
1.2
Supercell composite
9.3

Open this sounding in Storm Lab

The text

As transmitted.

959 
WWUS81 KPHI 030218
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
1018 PM EDT Sun Aug 2 2020

NJZ001-007-PAZ055-062-030300-
Sussex-Warren-Monroe-Northampton-
1018 PM EDT Sun Aug 2 2020

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN SUSSEX...NORTHERN
WARREN...SOUTHEASTERN MONROE AND NORTHEASTERN NORTHAMPTON COUNTIES...

At 1017 PM EDT, a strong thunderstorm was located near Belfast, or 9
miles northwest of Easton, moving northeast at 45 mph.

Wind gusts up to 40 mph are possible with this storm.

Locations impacted include...
Blairstown, Nazareth, Bangor, Pen Argyl, Wind Gap, Bath, Belvidere,
Hope, Belfast, Tatamy, East Bangor, Great Meadows-Vienna,
Allamuchy-Panther Valley, Saylorsburg, Greendell, Millbrook, Delaware
Water Gap, Columbia, Roseto and Stockertown.

This includes the following highways...
 Interstate 80 in Pennsylvania near mile marker 314.
 Interstate 80 in New Jersey between mile markers 0 and 23.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4112 7491 4092 7474 4091 7476 4089 7479
      4071 7537 4083 7546
TIME...MOT...LOC 0217Z 239DEG 38KT 4081 7532 

$$

JEO

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 8:09 PM EDTSpecial Marine WarningPHI36 min
Aug 2, 8:53 PM EDTRip Current StatementPHIAtlantic, Cape May, Monmouth, Ocean51 hr
Aug 2, 8:53 PM EDTHigh Surf AdvisoryPHIAtlantic, Cape May, Monmouth, Ocean51 hr
Aug 2, 9:01 PM EDTSpecial Weather StatementPHIAtlantic44 min
Aug 2, 11:42 PM EDTSpecial Weather StatementPHICumberland33 min
Aug 2, 11:49 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more41 min
Aug 3, 5:08 AM EDTTropical Storm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more39 hr
Aug 3, 4:26 PM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more38 hr
Aug 3, 6:03 PM EDTSpecial Marine WarningPHI12 min
Aug 3, 6:05 PM EDTSevere Thunderstorm WarningPHICumberland22 min
Aug 3, 6:19 PM EDTSpecial Weather StatementPHISalem26 min
Aug 3, 6:32 PM EDTSpecial Weather StatementPHICamden, Cumberland, Gloucester, Salem28 min
Aug 3, 6:48 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester27 min
Aug 3, 6:59 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester31 min
Aug 3, 7:02 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem28 min
Aug 3, 7:12 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Monmouth, Ocean48 min
Aug 3, 7:20 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer, Monmouth40 min
Aug 3, 7:43 PM EDTSevere Thunderstorm WarningPHIBurlington, Monmouth, Ocean62 min
Aug 3, 7:52 PM EDTSpecial Marine WarningPHI73 min
Aug 3, 7:56 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean, Somerset52 min
Aug 2, 8:00 PM EDTSpecial Weather StatementPHIKent30 min
Aug 3, 3:05 PM EDTSpecial Weather StatementPHISussex25 min
Aug 3, 3:27 PM EDTSpecial Weather StatementPHISussex48 min
Aug 3, 3:40 PM EDTSpecial Weather StatementPHITalbot35 min
Aug 3, 4:26 PM EDTCoastal Flood WarningPHICaroline, Cecil, Kent, Queen Anne's, Talbot27 hr

Nearby

Special Weather Statements in New Jersey, 2020Special Weather Statements in Pennsylvania, 2020Every special weather statement in 2020

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.