Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

November 12, 2021Morris County, Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Nov 12, 2021, 9:35 AM EST for Morris County, Sussex County, New Jersey. It was in force for 55 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
Nov 12, 2021, 9:35 AM EST (14:35 UTC)
Expired
Nov 12, 2021, 10:30 AM EST
In force
55 min
Issued by
NWS Philadelphia/Mount Holly
Hail
0.00 in
Wind
40

Counties Morris County, NJ, Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 121 km from the middle of the area, began a volume at 14:35 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, 2.6 hours before the alert went out and 136 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 2021-11-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 191 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 12:00Z on 2021-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 262 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
191 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
601 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
262 m²/s²
0-3 km storm-relative helicity
370 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

834 
WWUS81 KPHI 121435
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
935 AM EST Fri Nov 12 2021
 
NJZ001-007>009-121530-
Hunterdon NJ-Morris NJ-Sussex NJ-Warren NJ-
935 AM EST Fri Nov 12 2021

...Showers with strong wind gusts will impact portions of 
northeastern Hunterdon, Morris, Sussex and eastern Warren Counties 
through 1030 AM EST...

At 934 AM EST, Doppler radar was tracking showers with strong wind 
gusts along a line extending from Montague to near Glen Gardner. 
Movement was northeast around 35 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Morristown, Newton, Montague, Dover, Hopatcong, East Hanover, Lincoln
Park, Kinnelon, Hackettstown, Boonton, Butler, Wharton, Washington,
Rockaway, Morris Plains, Mount Arlington, Franklin, Mendham, Mountain
Lakes and High Bridge.

This includes the following highways...
 Interstate 80 in New Jersey between mile markers 14 and 49.
 Interstate 287 in New Jersey between mile markers 36 and 54.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Heavy rainfall is also occurring and it may lead to localized 
flooding. Do not drive your vehicle through flood waters.

&&

LAT...LON 4120 7436 4110 7449 4104 7450 4105 7445
      4102 7443 4100 7430 4097 7428 4092 7429
      4090 7427 4091 7434 4086 7432 4081 7435
      4064 7501 4128 7484 4135 7475 4136 7469
TIME...MOT...LOC 1433Z 243DEG 27KT 4129 7478 4066 7496 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

Iovino

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 12, 9:16 AM ESTSpecial Weather StatementPHIHunterdon44 min
Nov 12, 2:49 PM ESTGale WarningPHI31 hr
Nov 12, 5:09 PM ESTCoastal Flood StatementPHIOcean4 hr
Nov 12, 6:40 AM ESTSpecial Weather StatementPHIBerks80 min
Nov 12, 7:34 AM ESTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton2 hr

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.