Alert archive / New Jersey / Special Weather Statements in 2023

Special Weather Statement, NWS Philadelphia/Mount Holly

July 14, 2023Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 14, 2023, 4:21 PM EDT for Somerset County, New Jersey. It was in force for 39 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 14, 2023, 4:21 PM EDT (20:21 UTC)
Expired
Jul 14, 2023, 5:00 PM EDT
In force
39 min
Issued by
NWS Philadelphia/Mount Holly
Hail
0.25 in
Wind
40

County Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 20:23 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, 8.4 hours before the alert went out and 137 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 2023-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 210 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 2023-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.19395878Sfc1 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
210 J/kg
Mixed-layer CIN
-225 J/kg
Mixed-layer LCL
1125 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

732 
WWUS81 KPHI 142021
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
421 PM EDT Fri Jul 14 2023
 
NJZ008-010-012-142100-
Morris NJ-Somerset NJ-Middlesex NJ-
421 PM EDT Fri Jul 14 2023

...A strong thunderstorm will impact portions of south central
Morris, central Somerset and north central Middlesex Counties through
500 PM EDT...

At 421 PM EDT, Doppler radar was tracking a strong thunderstorm over
Somerville, moving east at 10 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
New Brunswick, Somerville, Somerset, Edison, East Brunswick,
Bridgewater, Middlesex, Bound Brook, Manville, Millstone,
Martinsville, Millington, Society Hill, North Brunswick Township,
South Plainfield, North Plainfield, Highland Park, Metuchen, Dunellen
and Raritan.

This includes the following highways...
 New Jersey Turnpike near exit 10.
 Interstate 78 in New Jersey between mile markers 34 and 43.
 Interstate 287 in New Jersey between mile markers 1 and 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4047 7433 4048 7466 4059 7470 4074 7442
      4071 7441 4067 7446 4066 7445 4067 7441
      4065 7440 4060 7446 4060 7437
TIME...MOT...LOC 2021Z 254DEG 9KT 4057 7459 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 8:39 PM EDTCoastal Flood AdvisoryPHIOcean5 hr
Jul 13, 8:53 PM EDTSevere Thunderstorm WarningPHISussex67 min
Jul 13, 9:57 PM EDTSevere Thunderstorm WarningPHISussex48 min
Jul 13, 10:49 PM EDTSpecial Weather StatementPHISussex26 min
Jul 14, 1:09 AM EDTSpecial Weather StatementPHISussex21 min
Jul 14, 1:52 AM EDTAreal Flood AdvisoryPHISussex3 hr
Jul 14, 5:54 AM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Somerset51 min
Jul 14, 6:02 AM EDTSpecial Weather StatementPHIMercer28 min
Jul 14, 6:20 AM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Morris, Somerset40 min
Jul 14, 6:33 AM EDTSpecial Weather StatementPHIWarren27 min
Jul 14, 6:35 AM EDTSpecial Weather StatementPHIMiddlesex25 min
Jul 14, 6:40 AM EDTSevere Thunderstorm WarningPHIMiddlesex, Somerset50 min
Jul 14, 6:55 AM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset, Sussex, Warren50 min
Jul 14, 6:59 AM EDTSpecial Weather StatementPHIWarren31 min
Jul 14, 7:22 AM EDTSpecial Weather StatementPHISussex23 min
Jul 14, 7:27 AM EDTSevere Thunderstorm WarningPHIMorris, Sussex18 min
Jul 14, 7:41 AM EDTSpecial Weather StatementPHISussex34 min
Jul 14, 4:54 PM EDTSpecial Weather StatementPHISomerset51 min
Jul 14, 6:06 PM EDTSpecial Weather StatementPHIMorris24 min
Jul 14, 6:07 PM EDTSpecial Weather StatementPHIWarren38 min
Jul 14, 6:20 PM EDTSpecial Weather StatementPHISussex25 min
Jul 14, 6:22 PM EDTSevere Thunderstorm WarningPHIWarren38 min
Jul 14, 6:26 PM EDTSevere Thunderstorm WarningPHISussex, Warren49 min
Jul 14, 6:46 PM EDTSpecial Weather StatementPHISussex29 min
Jul 14, 6:52 PM EDTSevere Thunderstorm WarningPHISussex, Warren53 min
Jul 14, 7:03 PM EDTSevere Thunderstorm WarningPHISussex41 min
Jul 14, 7:08 PM EDTAreal Flood AdvisoryPHISussex, Warren39 min
Jul 14, 7:20 PM EDTSpecial Weather StatementPHIWarren25 min
Jul 14, 7:40 PM EDTFlash Flood WarningPHIMorris, Sussex, Warren6 hr
Jul 14, 7:46 PM EDTAreal Flood AdvisoryPHISussex2 hr
Jul 13, 8:13 PM EDTSpecial Weather StatementPHIMonroe32 min
Jul 13, 8:20 PM EDTSevere Thunderstorm WarningPHIMonroe25 min
Jul 13, 9:28 PM EDTSpecial Weather StatementPHIMonroe32 min
Jul 13, 10:01 PM EDTSpecial Weather StatementPHIMonroe44 min
Jul 13, 10:48 PM EDTSpecial Weather StatementPHIMonroe27 min
Jul 14, 5:30 AM EDTSpecial Weather StatementPHIPhiladelphia30 min
Jul 14, 3:43 PM EDTSpecial Weather StatementPHIMontgomery32 min
Jul 14, 4:40 PM EDTSpecial Weather StatementPHICarbon35 min
Jul 14, 5:10 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe50 min
Jul 14, 5:33 PM EDTAreal Flood AdvisoryPHICarbon, Monroe29 min
Jul 14, 5:35 PM EDTSpecial Weather StatementPHIMonroe25 min
Jul 14, 5:54 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe51 min
Jul 14, 6:02 PM EDTFlash Flood WarningPHICarbon, Monroe6 hr
Jul 14, 7:16 PM EDTSpecial Weather StatementPHILehigh29 min

Nearby

Special Weather Statements in New Jersey, 2023Every special weather statement in 2023

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.