Alert archive / New Jersey / Special Weather Statements in 2020

Special Weather Statement, NWS Philadelphia/Mount Holly

January 8, 2020Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jan 8, 2020, 4:24 PM EST for Warren 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
Jan 8, 2020, 4:24 PM EST (21:24 UTC)
Expired
Jan 8, 2020, 5:00 PM EST
In force
36 min
Issued by
NWS Philadelphia/Mount Holly

County Warren County, NJ

The radar

The Philadelphia radar (KDIX), 137 km from the middle of the area, began a volume at 21:25 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 12:00Z, 9.4 hours before the alert went out and 207 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 12:00Z on 2020-01-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Brookhaven, NY at 12:00Z on 2020-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
864 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

356 
WWUS81 KPHI 082124
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
424 PM EST Wed Jan 8 2020

NJZ007-PAZ054-055-062-082200-
Warren-Monroe-Northampton-Carbon-
424 PM EST Wed Jan 8 2020

...A SNOW SQUALL WILL AFFECT CENTRAL WARREN...NORTHEASTERN CARBON...
SOUTHWESTERN MONROE AND NORTHEASTERN NORTHAMPTON COUNTIES...

At 422 PM EST, a snow squall was located over Meckesville, or 11
miles southwest of Mount Pocono, moving southeast at 30 mph.

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

Locations impacted include...
East Stroudsburg, Hackettstown, Washington, Bangor, Pen Argyl, Wind
Gap, Belvidere, Oxford, Hope, East Bangor, Brass Castle, Stormville,
Brodheadsville, Gilbert, Pocono Raceway, Lake Harmony, Delaware Water
Gap, Tannersville, Long Pond and Albrightsville.

This includes the following highways...
 Interstate 80 in New Jersey between mile markers 0 and 9.
 Interstate 80 in Pennsylvania between mile markers 277 and 299, and
between mile markers 303 and 312.
 Northeast Extension between exits A87 and A95.
 Interstate 380 in Pennsylvania near mile marker 0.

Visibilities will drop quickly to less than a mile in this squall.

Use extra caution if you must travel into or through this dangerous
snow squall. Rapid changes in visibility and potentially slick roads
are likely to lead to accidents. Consider delaying travel until the
squall passes your location.

LAT...LON 4086 7480 4082 7483 4078 7490 4070 7500
      4102 7574 4105 7577 4109 7577 4113 7569
      4112 7565 4115 7560
TIME...MOT...LOC 2122Z 308DEG 27KT 4102 7555 

$$

SFJ

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 8, 7:49 AM ESTSnow Squall WarningPHIWarren41 min
Jan 8, 8:28 AM ESTSnow Squall WarningPHICumberland, Gloucester, Salem47 min
Jan 8, 8:30 AM ESTSnow Squall WarningPHISussex, Warren45 min
Jan 8, 8:48 AM ESTSnow Squall WarningPHIHunterdon, Middlesex, Morris, Somerset, Warren42 min
Jan 8, 9:14 AM ESTSnow Squall WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem46 min
Jan 8, 9:57 AM ESTSpecial Weather StatementPHIAtlantic33 min
Jan 8, 12:49 PM ESTSnow Squall WarningPHIBurlington, Camden26 min
Jan 8, 1:08 PM ESTSnow Squall WarningPHIBurlington, Camden37 min
Jan 8, 1:48 PM ESTSnow Squall WarningPHISussex, Warren42 min
Jan 8, 2:10 PM ESTSpecial Weather StatementPHISussex35 min
Jan 8, 2:18 PM ESTSnow Squall WarningPHIMorris, Sussex42 min
Jan 8, 2:32 PM ESTSpecial Weather StatementPHIMorris, Warren28 min
Jan 8, 3:05 PM ESTSpecial Weather StatementPHIHunterdon, Morris, Somerset, Warren40 min
Jan 8, 6:10 PM ESTSmall Craft AdvisoryPHI13 hr
Jan 8, 7:44 AM ESTSnow Squall WarningPHIChester46 min
Jan 8, 8:28 AM ESTSnow Squall WarningPHIBerks, Bucks, Chester, Delaware, Montgomery47 min
Jan 8, 11:25 AM ESTSnow Squall WarningPHIBerks35 min
Jan 8, 12:07 PM ESTSpecial Weather StatementPHIMontgomery23 min
Jan 8, 12:38 PM ESTSpecial Weather StatementPHIMontgomery, Philadelphia37 min
Jan 8, 2:05 PM ESTSpecial Weather StatementPHIMontgomery25 min
Jan 8, 2:33 PM ESTSpecial Weather StatementPHIPhiladelphia27 min
Jan 8, 2:46 PM ESTSpecial Weather StatementPHIBerks44 min
Jan 8, 9:19 AM ESTSpecial Weather StatementPHINew Castle26 min

Nearby

Special Weather Statements in New Jersey, 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.