Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

July 7, 2021Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 7, 2021, 11:37 PM EDT for Sussex County, New Jersey. It was in force for 38 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: Jul 7, 2021, 11:37 PM EDT (03:37 UTC)
Expired: Jul 8, 2021, 12:15 AM EDT
In force: 38 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 142 km from the middle of the area, began a volume at 03:38 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, 3.6 hours before the alert went out and 174 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: 1805 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1235 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

155 
WWUS81 KPHI 080337
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
1137 PM EDT Wed Jul 7 2021

NJZ001-PAZ055-080415-
Sussex-Monroe-
1137 PM EDT Wed Jul 7 2021

...A STRONG THUNDERSTORM WILL AFFECT SUSSEX AND NORTHEASTERN MONROE
COUNTIES...

At 1136 PM EDT, a strong thunderstorm was located near Greeley, or 10
miles northwest of Montague, moving east at 30 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Newton, Montague, Franklin, Hamburg, Ogdensburg, Sussex, Branchville,
Flatbrookville, High Point, Lake Mohawk, Werry Lake, Vernon Valley,
Skytop, Mountainhome, Canadensis, Alpine Mountain, Five Points,
Pellettown, Crandon Lakes and Highland Lake.

LAT...LON 4120 7436 4100 7460 4105 7492 4109 7496
      4106 7502 4110 7528 4125 7525 4125 7513
      4115 7515 4114 7509 4108 7503 4109 7500
      4116 7490 4129 7483 4135 7475 4136 7470
TIME...MOT...LOC 0336Z 258DEG 25KT 4138 7496 

$$

BAH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 11:06 PM EDT	Tropical Storm Warning	PHI	Atlantic, Burlington, Cape May, Monmouth, Ocean	32 hr
Jul 8, 5:27 AM EDT	Small Craft Advisory	PHI		34 hr
Jul 8, 1:49 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	41 min
Jul 8, 2:09 PM EDT	Special Marine Warning	PHI		81 min
Jul 8, 2:26 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	21 min
Jul 8, 2:29 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	46 min
Jul 8, 2:43 PM EDT	Rip Current Statement	PHI	Atlantic, Cape May, Monmouth, Ocean	27 hr
Jul 8, 3:03 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	42 min
Jul 8, 4:02 PM EDT	Special Marine Warning	PHI		33 min
Jul 8, 4:02 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	31 min
Jul 8, 4:43 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Somerset	16 min
Jul 8, 5:29 PM EDT	Special Weather Statement	PHI	Morris, Warren	46 min
Jul 8, 5:34 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	41 min
Jul 8, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	39 min
Jul 8, 6:09 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex	51 min
Jul 8, 6:16 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	44 min
Jul 7, 11:11 PM EDT	Special Weather Statement	PHI	Monroe	49 min
Jul 8, 8:53 AM EDT	Special Weather Statement	PHI	Monroe	52 min
Jul 8, 9:31 AM EDT	Areal Flood Advisory	PHI	Carbon, Monroe	119 min
Jul 8, 9:46 AM EDT	Special Weather Statement	PHI	Monroe	44 min
Jul 8, 3:50 PM EDT	Special Weather Statement	PHI	Berks	25 min
Jul 8, 4:06 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Montgomery	39 min
Jul 8, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Berks	50 min
Jul 8, 4:45 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	45 min
Jul 8, 4:51 PM EDT	Severe Thunderstorm Warning	PHI	Berks	54 min
Jul 8, 5:11 PM EDT	Special Weather Statement	PHI	Lehigh	34 min
Jul 8, 5:21 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	39 min
Jul 8, 5:52 PM EDT	Special Weather Statement	PHI	Berks	23 min

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.