Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 111, NWS Philadelphia/Mount Holly

July 14, 2024Middlesex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 14, 2024, 2:31 PM EDT for Middlesex County, New Jersey. It was in force for 33 min. 3 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, 2024, 2:31 PM EDT (18:31 UTC)
Expired: Jul 14, 2024, 3:04 PM EDT
In force: 33 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Middlesex County, NJ

The radar

The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 18:31 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

Time	Report	Where	Remark
Jul 14, 2:35 PM EDT	TSTM WND DMG	1 S South Plainfield, NJ	Multiple trees down on the south side of South Plainfield. Time estimated from radar.
Jul 14, 2:35 PM EDT	HAIL 0.25	Metuchen, NJ
Jul 14, 2:36 PM EDT	HAIL 0.25	Edison, NJ	Pea size hail.

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, 6.5 hours before the alert went out and 129 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: 23 J/kg
Mixed-layer CIN: -154 J/kg
Mixed-layer LCL: 1421 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

428 
WUUS51 KPHI 141831
SVRPHI
NJC023-141915-
/O.NEW.KPHI.SV.W.0111.240714T1831Z-240714T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
231 PM EDT Sun Jul 14 2024

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northeastern Middlesex County in northern New Jersey...

* Until 315 PM EDT.

* At 231 PM EDT, a severe thunderstorm was located over Edison, or
  near New Brunswick, moving northeast at 10 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  New Brunswick, Perth Amboy, Somerset, Edison, East Brunswick,
  Sayreville, Carteret, Middlesex, Bound Brook, Colonia, Society
  Hill, North Brunswick Township, Woodbridge, South Plainfield, South
  River, Highland Park, Metuchen, Dunellen, Milltown, and Iselin.

This includes the following highways...
 New Jersey Turnpike between exits 10 and 13.
 Interstate 287 in New Jersey between mile markers 0 and 9.
 Garden State Parkway between mile markers 124 and 134.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4055 7425 4050 7426 4050 7428 4046 7426
      4042 7443 4049 7447 4050 7446 4057 7453
      4060 7447 4061 7433 4059 7428 4060 7421
      4056 7421
TIME...MOT...LOC 1831Z 242DEG 11KT 4054 7440 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Hoeflich

2 follow-up statements

803 
WWUS51 KPHI 141853
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
253 PM EDT Sun Jul 14 2024

NJC023-141915-
/O.CON.KPHI.SV.W.0111.000000T0000Z-240714T1915Z/
Middlesex NJ-
253 PM EDT Sun Jul 14 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR NORTHEASTERN MIDDLESEX COUNTY...

At 253 PM EDT, a severe thunderstorm was located over Colonia, or
near Perth Amboy, moving northeast at 15 mph.

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

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Perth Amboy, Edison, East Brunswick, Sayreville, Carteret, Colonia,
Woodbridge, South Plainfield, South River, Metuchen, Iselin, Sewaren,
Port Reading, Fords, Avenel, and Madison Park.

This includes the following highways...
 New Jersey Turnpike between exits 11 and 13.
 Interstate 287 in New Jersey between mile markers 0 and 4.
 Garden State Parkway between mile markers 124 and 134.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4043 7438 4060 7442 4061 7433 4059 7428
      4060 7421 4056 7421 4055 7425 4050 7426
      4050 7428 4047 7426 4044 7436
TIME...MOT...LOC 1853Z 242DEG 11KT 4057 7432 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Hoeflich

959 
WWUS51 KPHI 141904
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
304 PM EDT Sun Jul 14 2024

NJC023-141914-
/O.CAN.KPHI.SV.W.0111.000000T0000Z-240714T1915Z/
Middlesex NJ-
304 PM EDT Sun Jul 14 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIDDLESEX COUNTY
IS CANCELLED...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 4043 7438 4060 7442 4061 7433 4059 7428
      4060 7421 4056 7421 4055 7425 4050 7426
      4050 7428 4047 7426 4044 7436
TIME...MOT...LOC 1902Z 242DEG 11KT 3999 7584 

$$

Hoeflich

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 3:03 PM EDT	Excessive Heat Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 9 more	3 days
Jul 14, 3:44 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	46 min
Jul 14, 3:51 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	39 min
Jul 14, 4:13 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester	47 min
Jul 14, 4:22 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Burlington	32 min
Jul 14, 4:24 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	51 min
Jul 14, 4:27 PM EDT	Special Marine Warning	PHI		49 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2024 Every severe thunderstorm warning in 2024

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.