Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

July 14, 2021Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 14, 2021, 6:41 PM EDT for Monmouth County, New Jersey. It was in force for 34 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 14, 2021, 6:41 PM EDT (22:41 UTC)
Expired
Jul 14, 2021, 7:15 PM EDT
In force
34 min
Issued by
NWS Philadelphia/Mount Holly

County Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 52 km from the middle of the area, began a volume at 22:42 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.

What was reported inside it

TimeReportWhereRemark
Jul 14, 7:04 PM EDTTSTM WND DMG1 Wnw Middletown Twp, NJWIRES DOWN NEAR ROUTE 35. POWER OUTAGES IN THE AREA. TIME ESTIMATED FROM RADAR.
Jul 14, 7:24 PM EDTTSTM WND DMGHazlet, NJDOWNED WIRES NEAR HAZLET AVENUE AND ROUTE 35. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.7 hours before the alert went out and 123 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 2021-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1588 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 2021-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.193958Sfc1 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
1588 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
506 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted.

686 
WWUS81 KPHI 142241
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
641 PM EDT Wed Jul 14 2021

NJZ012>015-020-142315-
Eastern Monmouth-Ocean-Western Monmouth-Middlesex-Mercer-
641 PM EDT Wed Jul 14 2021

...STRONG THUNDERSTORMS WILL AFFECT NORTH CENTRAL OCEAN... 
SOUTHEASTERN MERCER...MONMOUTH AND SOUTHERN MIDDLESEX COUNTIES...

At 640 PM EDT, a strong thunderstorm was located over Yorketown, or
13 miles southeast of New Brunswick, moving east at 15 mph.

Wind gusts up to 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Long Branch, Asbury Park, Middletown, Old Bridge, Howell, East
Brunswick, Marlboro, Manalapan, Tinton Falls, Holmdel, Red Bank,
Keansburg, Matawan, Jamesburg, Hightstown, Highlands, Cranbury,
Allentown, Farmingdale and Roosevelt.

This includes the following highways...
 New Jersey Turnpike between exits 8A and 9.
 Interstate 195 in New Jersey between mile markers 7 and 24.
 Garden State Parkway between mile markers 100 and 123.

Torrential rainfall is also occurring with this storm, and may cause
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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4038 7396 4021 7396 4011 7457 4031 7464
      4047 7426 4044 7420 4046 7418 4045 7416
      4045 7413 4041 7403 4041 7397
TIME...MOT...LOC 2240Z 256DEG 14KT 4031 7433 

$$

Fitzsimmons

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 3:42 PM EDTSpecial Weather StatementPHIMorris18 min
Jul 14, 5:47 PM EDTSpecial Marine WarningPHI43 min
Jul 14, 5:54 PM EDTSpecial Weather StatementPHIOcean51 min
Jul 14, 7:03 PM EDTSpecial Marine WarningPHI61 min
Jul 14, 7:03 PM EDTSevere Thunderstorm WarningPHIMonmouth42 min
Jul 14, 7:24 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth36 min
Jul 14, 7:26 PM EDTAreal Flood AdvisoryPHIMiddlesex, Monmouth2 hr
Jul 14, 7:37 PM EDTFlash Flood WarningPHIMonmouth3 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.