Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 231, NWS Philadelphia/Mount Holly

July 25, 2023Middlesex County, Monmouth County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 2023, 2:53 PM EDT for Middlesex County, Monmouth County, Somerset County, New Jersey. It was in force for 52 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 25, 2023, 2:53 PM EDT (18:53 UTC)
Expired: Jul 25, 2023, 3:45 PM EDT
In force: 52 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Middlesex County, NJ, Monmouth County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 18:56 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 25, 12:13 PM EDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.9 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-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: 231 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 960 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

496 
WUUS51 KPHI 251853
SVRPHI
NJC023-025-035-251945-
/O.NEW.KPHI.SV.W.0231.230725T1853Z-230725T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
253 PM EDT Tue Jul 25 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southeastern Somerset County in northern New Jersey...
  Northeastern Monmouth County in central New Jersey...
  Middlesex County in northern New Jersey...

* Until 345 PM EDT.

* At 253 PM EDT, a severe thunderstorm was located over New
  Brunswick, moving east at 30 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, Somerville, Sandy Hook, Somerset,
  Edison, Middletown, Old Bridge, East Brunswick, South Brunswick,
  Sayreville, North Brunswick, Carteret, Middlesex, Bound Brook,
  Manville, Matawan, Jamesburg, Highlands and Millstone.

This includes the following highways...
 New Jersey Turnpike between exits 9 and 13.
 Interstate 287 in New Jersey between mile markers 0 and 16.
 Garden State Parkway between mile markers 114 and 134.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4032 7458 4058 7461 4061 7445 4060 7446
      4060 7421 4056 7421 4055 7425 4050 7426
      4050 7428 4046 7426 4044 7420 4046 7418
      4041 7398 4043 7399 4048 7402 4048 7401
      4043 7397 4039 7397
TIME...MOT...LOC 1853Z 253DEG 25KT 4047 7446 

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

$$

MLB

1 follow-up statement

809 
WWUS51 KPHI 251928
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
328 PM EDT Tue Jul 25 2023

NJC023-025-035-251945-
/O.CON.KPHI.SV.W.0231.000000T0000Z-230725T1945Z/
Somerset NJ-Monmouth NJ-Middlesex NJ-
328 PM EDT Tue Jul 25 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR SOUTHEASTERN SOMERSET...NORTHEASTERN MONMOUTH AND MIDDLESEX
COUNTIES...

At 328 PM EDT, a severe thunderstorm was located over Huguenot,
moving east at 30 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, Sandy Hook, Somerset, Edison, Middletown,
Old Bridge, East Brunswick, South Brunswick, Sayreville, North
Brunswick, Carteret, Manville, Matawan, Jamesburg, Highlands,
Millstone, Princeton Meadows, Brownville and Dayton.

This includes the following highways...
 New Jersey Turnpike between exits 9 and 13.
 Interstate 287 in New Jersey between mile markers 0 and 7, and
between mile markers 9 and 11.
 Garden State Parkway between mile markers 114 and 132.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4032 7458 4053 7460 4057 7440 4060 7421
      4056 7421 4055 7425 4050 7426 4050 7428
      4046 7426 4044 7420 4046 7418 4041 7398
      4043 7399 4048 7402 4048 7401 4043 7397
      4039 7397
TIME...MOT...LOC 1928Z 253DEG 25KT 4054 7415 

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

$$

MLB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 1:06 PM EDT	Severe Thunderstorm Warning	PHI	Warren	39 min
Jul 25, 1:21 PM EDT	Special Weather Statement	PHI	Hunterdon	24 min
Jul 25, 1:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Somerset	48 min
Jul 25, 1:38 PM EDT	Flash Flood Warning	PHI	Gloucester	4 hr
Jul 25, 1:52 PM EDT	Special Marine Warning	PHI		38 min
Jul 25, 2:06 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	39 min
Jul 25, 2:08 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	52 min
Jul 25, 2:20 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	55 min
Jul 25, 2:39 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset, Sussex	51 min
Jul 25, 2:44 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset	2 hr
Jul 25, 2:45 PM EDT	Special Marine Warning	PHI		60 min
Jul 25, 3:16 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer	44 min
Jul 25, 3:24 PM EDT	Special Marine Warning	PHI		96 min
Jul 25, 3:27 PM EDT	Areal Flood Advisory	PHI	Middlesex, Somerset	81 min
Jul 25, 3:40 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	50 min
Jul 25, 3:45 PM EDT	Special Marine Warning	PHI		60 min
Jul 25, 3:52 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	53 min
Jul 25, 3:57 PM EDT	Areal Flood Advisory	PHI	Middlesex, Monmouth	3 hr
Jul 25, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	30 min
Jul 25, 4:12 PM EDT	Flash Flood Warning	PHI	Monmouth	3 hr
Jul 25, 4:17 PM EDT	Special Marine Warning	PHI		58 min
Jul 25, 4:50 PM EDT	Special Marine Warning	PHI		55 min
Jul 25, 4:57 PM EDT	Areal Flood Advisory	PHI	Monmouth, Ocean	2 hr
Jul 25, 5:09 PM EDT	Special Marine Warning	PHI		66 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; radar from the NEXRAD Level II archive.