Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 47, NWS Philadelphia/Mount Holly

April 22, 2023Middlesex County, Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 22, 2023, 8:16 PM EDT for Middlesex County, Monmouth County, Ocean County, New Jersey. It was in force for 33 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: Apr 22, 2023, 8:16 PM EDT (00:16 UTC)
Expired: Apr 22, 2023, 8:49 PM EDT
In force: 33 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 0.3 hours before the alert went out and 131 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: 208 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 590 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 344 m²/s²
0-3 km storm-relative helicity: 412 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

294 
WUUS51 KPHI 230016
SVRPHI
NJC023-025-029-230100-
/O.NEW.KPHI.SV.W.0047.230423T0016Z-230423T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
816 PM EDT Sat Apr 22 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  North central Ocean County in southern New Jersey...
  Central Monmouth County in central New Jersey...
  Middlesex County in northern New Jersey...

* Until 900 PM EDT.

* At 816 PM EDT, a severe thunderstorm was located near Woodruff, or
  11 miles west of Toms River, moving north at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  New Brunswick, Perth Amboy, Somerset, Edison, Old Bridge, East
  Brunswick, Sayreville, North Brunswick, Manalapan, Carteret,
  Middlesex, Matawan, Jamesburg, Roosevelt, Brownville, Six Flags
  Theme Park, West Freehold, Cassville, Clarksburg and Vista Center.

This includes the following highways...
 New Jersey Turnpike between exits 9 and 13.
 Interstate 195 in New Jersey between mile markers 15 and 22.
 Interstate 287 in New Jersey between mile markers 0 and 8.
 Garden State Parkway between mile markers 120 and 134.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
      4046 7426 4045 7421 4005 7436 4006 7446
      4048 7449 4050 7446 4052 7449 4059 7449
      4061 7435 4061 7431 4059 7429 4060 7421
TIME...MOT...LOC 0016Z 185DEG 36KT 4002 7441 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

RCM

2 follow-up statements

999 
WWUS51 KPHI 230031
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
831 PM EDT Sat Apr 22 2023

NJC029-230040-
/O.CAN.KPHI.SV.W.0047.000000T0000Z-230423T0100Z/
Ocean NJ-
831 PM EDT Sat Apr 22 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL OCEAN COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been
cancelled.

LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
      4046 7426 4045 7421 4019 7432 4021 7445
      4048 7449 4050 7446 4052 7449 4059 7449
      4061 7435 4061 7431 4059 7429 4060 7421
TIME...MOT...LOC 0030Z 185DEG 36KT 4017 7439 

$$

NJC023-025-230100-
/O.CON.KPHI.SV.W.0047.000000T0000Z-230423T0100Z/
Monmouth NJ-Middlesex NJ-
831 PM EDT Sat Apr 22 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR CENTRAL MONMOUTH AND MIDDLESEX COUNTIES...

At 830 PM EDT, a severe thunderstorm was located over Six Flags Theme
Park, or 16 miles northwest of Toms River, moving north at 40 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Wind damage to roofs, 
         siding, trees, and power lines is possible.

Locations impacted include...
New Brunswick, Perth Amboy, Somerset, Edison, Old Bridge, East
Brunswick, Sayreville, North Brunswick, Manalapan, Carteret,
Middlesex, Matawan, Jamesburg, Colonia, Brownville, Robertsville,
North Brunswick Township, Clearbrook Park, Yorketown and Whittingham.

This includes the following highways...
 New Jersey Turnpike between exits 10 and 13.
 Interstate 287 in New Jersey between mile markers 0 and 8.
 Garden State Parkway between mile markers 120 and 134.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
      4046 7426 4045 7421 4019 7432 4021 7445
      4048 7449 4050 7446 4052 7449 4059 7449
      4061 7435 4061 7431 4059 7429 4060 7421
TIME...MOT...LOC 0030Z 185DEG 36KT 4017 7439 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

RCM

903 
WWUS51 KPHI 230049
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
849 PM EDT Sat Apr 22 2023

NJC023-025-230059-
/O.CAN.KPHI.SV.W.0047.000000T0000Z-230423T0100Z/
Monmouth NJ-Middlesex NJ-
849 PM EDT Sat Apr 22 2023

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MONMOUTH AND MIDDLESEX
COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
      4046 7426 4045 7421 4019 7432 4021 7445
      4048 7449 4050 7446 4052 7449 4059 7449
      4061 7435 4061 7431 4059 7429 4060 7421
TIME...MOT...LOC 0048Z 185DEG 36KT 4036 7437 

$$

RCM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 8:07 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	23 min
Apr 22, 8:29 PM EDT	Severe Thunderstorm Warning	PHI	Morris	19 min
Apr 22, 8:46 PM EDT	Special Weather Statement	PHI	Monmouth, Ocean	59 min
Apr 22, 9:23 PM EDT	Special Marine Warning	PHI		67 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2023 Every severe thunderstorm warning 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.