Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

June 14, 2021Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 14, 2021, 6:33 PM EDT for Middlesex County, Monmouth County, New Jersey. It was in force for 27 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
Jun 14, 2021, 6:33 PM EDT (22:33 UTC)
Expired
Jun 14, 2021, 7:00 PM EDT
In force
27 min
Issued by
NWS Philadelphia/Mount Holly

Counties Middlesex County, NJ, Monmouth County, NJ

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.6 hours before the alert went out and 127 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 2021-06-14Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2021-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
687 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

614 
WWUS81 KPHI 142233
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
633 PM EDT Mon Jun 14 2021

NJZ012-013-015-142300-
Western Monmouth-Middlesex-Mercer-
633 PM EDT Mon Jun 14 2021

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL MERCER...CENTRAL
MONMOUTH AND MIDDLESEX COUNTIES...

At 632 PM EDT, a strong thunderstorm was located over Dayton, or 8
miles south of New Brunswick, moving northeast at 20 mph.

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

Locations impacted include...
Perth Amboy, Middletown, Old Bridge, East Brunswick, South Brunswick,
Sayreville, Marlboro, Manalapan, Tinton Falls, Holmdel, Red Bank,
Matawan, Jamesburg, Hightstown, Cranbury, Roosevelt, Princeton
Meadows, Brownville, East Freehold and Dayton.

This includes the following highways...
 New Jersey Turnpike between exits 8A and 9.
 Interstate 195 in New Jersey near mile marker 10.
 Garden State Parkway between mile markers 108 and 128.

If outdoors, consider seeking shelter inside a building.

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

LAT...LON 4031 7406 4017 7455 4037 7461 4055 7425
      4050 7426 4050 7428 4047 7427 4044 7420
      4046 7418 4045 7416 4032 7405
TIME...MOT...LOC 2232Z 247DEG 19KT 4036 7450 

$$

JEO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 5:53 PM EDTSpecial Weather StatementPHISussex37 min
Jun 14, 6:24 PM EDTSpecial Weather StatementPHISussex36 min
Jun 14, 6:48 PM EDTSevere Thunderstorm WarningPHIMorris, Somerset, Sussex42 min
Jun 14, 7:02 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth43 min
Jun 14, 7:14 PM EDTAreal Flood AdvisoryPHIMiddlesex, Monmouth2 hr
Jun 14, 7:55 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Morris, Somerset32 min
Jun 14, 4:15 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Monroe, Northampton60 min
Jun 14, 5:29 PM EDTSpecial Weather StatementPHIMonroe31 min
Jun 14, 7:55 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia50 min

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.