Alert archive / New Jersey / Special Weather Statements in 2020

Special Weather Statement, NWS Philadelphia/Mount Holly

October 7, 2020Morris County, Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 7, 2020, 6:18 PM EDT for Morris County, Sussex County, New Jersey. 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
Oct 7, 2020, 6:18 PM EDT (22:18 UTC)
Expired
Oct 7, 2020, 7:00 PM EDT
In force
42 min
Issued by
NWS Philadelphia/Mount Holly

Counties Morris County, NJ, Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 126 km from the middle of the area, began a volume at 22:17 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, 10.3 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2020-10-07Temperature 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 2020-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.1939587897117Sfc1 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
1457 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
228 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

422 
WWUS81 KPHI 072218
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
618 PM EDT Wed Oct 7 2020

NJZ001-007-008-PAZ055-072300-
Morris-Sussex-Warren-Monroe-
618 PM EDT Wed Oct 7 2020

...A SHOWER WILL AFFECT MORRIS...SUSSEX...NORTHERN WARREN AND
NORTHEASTERN MONROE COUNTIES...

At 616 PM EDT, showers with gusty winds were located near Ringwood, 
moving southeast at 55 mph.

Wind gusts up to 45 mph are possible with these showers.

Locations impacted include...
Morristown, Newton, Montague, Dover, Madison, Hopatcong, Florham
Park, East Hanover, Lincoln Park, Kinnelon, Hackettstown, Chatham,
Boonton, Butler, Wharton, Rockaway, Blairstown, Morris Plains, Mount
Arlington and Franklin.

This includes the following highways...
 Interstate 80 in New Jersey between mile markers 10 and 47.
 Interstate 287 in New Jersey between mile markers 31 and 52.

LAT...LON 4120 7437 4110 7449 4104 7450 4105 7447
      4105 7445 4097 7428 4090 7427 4091 7433
      4076 7437 4075 7436 4070 7447 4098 7511
      4122 7539 4125 7513 4115 7515 4114 7509
      4108 7503 4116 7490 4132 7480 4136 7469
TIME...MOT...LOC 2216Z 301DEG 48KT 4114 7434 

$$

Fitzsimmons

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.