Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

October 29, 2021Morris County, Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 29, 2021, 8:44 PM EDT for Morris County, Sussex County, Warren County, New Jersey. It was in force for 31 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 29, 2021, 8:44 PM EDT (00:44 UTC)
Expired: Oct 29, 2021, 9:15 PM EDT
In force: 31 min
Issued by: NWS Philadelphia/Mount Holly
Hail: 0.00 in
Wind: 40

Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 120 km from the middle of the area, began a volume at 00:48 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, 0.7 hours before the alert went out and 153 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 809 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 209 m²/s²
0-3 km storm-relative helicity: 420 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

153 
WWUS81 KPHI 300044
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
844 PM EDT Fri Oct 29 2021
 
NJZ001-007>010-012-PAZ055-062-300115-
Hunterdon NJ-Morris NJ-Sussex NJ-Somerset NJ-Middlesex NJ-Warren NJ-
Monroe PA-Northampton PA-
844 PM EDT Fri Oct 29 2021

...Strong thunderstorms will impact portions of northeastern
Hunterdon, Morris, Sussex, Warren, northern Somerset, north central
Middlesex, northeastern Monroe and northeastern Northampton Counties
through 915 PM EDT...

At 843 PM EDT, Doppler radar was tracking strong showers along a 
line extending from near Roxburg to near Millington. Movement was 
north at 65 mph.

HAZARD...Wind gusts up to 45 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Morristown, Newton, Dover, Madison, Hopatcong, Middlesex, Florham
Park, East Hanover, Kinnelon, East Stroudsburg, Hackettstown,
Chatham, Boonton, Butler, Wharton, Washington, Rockaway, Blairstown,
Morris Plains and Bangor.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 28 and 43.
 Interstate 80 in Pennsylvania between mile markers 311 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 48.
 Interstate 287 in New Jersey between mile markers 20 and 54.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4134 7465 4120 7436 4109 7450 4104 7450
      4105 7445 4100 7430 4075 7436 4067 7446
      4066 7440 4060 7446 4060 7439 4056 7440
      4078 7520 4125 7519 4125 7513 4115 7515
      4114 7509 4108 7503 4116 7490 4135 7475
TIME...MOT...LOC 0043Z 183DEG 55KT 4079 7506 4063 7448 

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

$$

SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 29, 8:44 PM EDT	Small Craft Advisory	PHI		62 hr
Oct 29, 8:51 PM EDT	Areal Flood Advisory	PHI	Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 2 more	3 hr
Oct 29, 9:52 PM EDT	Special Weather Statement	PHI	Sussex	23 min
Oct 30, 3:37 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Warren	47 min
Oct 30, 4:25 AM EDT	Coastal Flood Advisory	PHI	Atlantic, Burlington, Cape May, Cumberland, Ocean	41 hr
Oct 30, 4:41 PM EDT	Coastal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer	31 hr
Oct 29, 8:31 PM EDT	River Flood Warning	PHI	New Castle	4 hr

Nearby

Special Weather Statements in New Jersey, 2021 Every 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.