Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 192, NWS Philadelphia/Mount Holly

August 6, 2024Mercer County, Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 6, 2024, 3:49 PM EDT for Mercer County, Middlesex County, Monmouth County, New Jersey. It was in force for 56 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
Aug 6, 2024, 3:49 PM EDT (19:49 UTC)
Expired
Aug 6, 2024, 4:45 PM EDT
In force
56 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 47 km from the middle of the area, began a volume at 19:51 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
Aug 6, 3:50 PM EDTTSTM WND DMG1 Ese West Long Branch, NJTrees down on Hollywood Avenue. Time estimated from radar.
Aug 6, 4:32 PM EDTTSTM WND DMG1 E Ocean Twp., NJMultiple trees down throughout Deal. Time estimated.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 6, 1:54 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.8 hours before the alert went out and 135 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 2024-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1440 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 2024-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 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
1440 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
797 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.2

Open this sounding in Storm Lab

The text

As transmitted.

673 
WUUS51 KPHI 061949
SVRPHI
NJC021-023-025-062045-
/O.NEW.KPHI.SV.W.0192.240806T1949Z-240806T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
349 PM EDT Tue Aug 6 2024

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northeastern Mercer County in central New Jersey...
  Northern Monmouth County in central New Jersey...
  Southern Middlesex County in northern New Jersey...

* Until 445 PM EDT.

* At 348 PM EDT, a severe thunderstorm was located over Hightstown, 
  or 10 miles east of Trenton, moving east at 10 mph. Additional 
  thunderstorms are along a west to east line all the way to coastal 
  Monmouth County.

  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...
  Long Branch, Asbury Park, Middletown, Old Bridge, East Brunswick,
  Marlboro, Manalapan, Tinton Falls, Holmdel, Princeton, Red Bank,
  Matawan, Jamesburg, Hightstown, Highlands, Cranbury, Roosevelt,
  Brownville, East Freehold, and West Freehold.

This includes the following highways...
 New Jersey Turnpike between exits 8A and 9.
 Interstate 295 in New Jersey between mile markers 65 and 68.
 Garden State Parkway between mile markers 103 and 118.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to hail and damaging winds, frequent cloud to ground 
lightning is occurring with this storm. Move indoors immediately. 
Remember, if you can hear thunder, you are close enough to be struck 
by lightning.

&&

LAT...LON 4039 7396 4023 7396 4022 7469 4038 7475
      4037 7472 4039 7463 4037 7461 4039 7459
      4043 7407 4041 7399 4044 7398
TIME...MOT...LOC 1948Z 262DEG 9KT 4028 7457 

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

$$

Gorse
3 follow-up statements
363 
WWUS51 KPHI 062007
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
407 PM EDT Tue Aug 6 2024

NJC021-023-025-062045-
/O.CON.KPHI.SV.W.0192.000000T0000Z-240806T2045Z/
Mercer NJ-Monmouth NJ-Middlesex NJ-
407 PM EDT Tue Aug 6 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHEASTERN MERCER...NORTHERN MONMOUTH AND SOUTHERN MIDDLESEX
COUNTIES...

At 405 PM EDT, a severe thunderstorm was located over Hightstown, or 
13 miles east of Trenton, moving east at 10 mph. Additional 
thunderstorms continue along a west to east line all the way to 
coastal Monmouth County. Areas of damaging downbursts winds can 
occur at any time with these thunderstorms.

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...
Long Branch, Asbury Park, Middletown, Old Bridge, East Brunswick,
Marlboro, Manalapan, Tinton Falls, Holmdel, Princeton, Red Bank,
Matawan, Jamesburg, Hightstown, Highlands, Cranbury, Roosevelt,
Brownville, East Freehold, and West Freehold.

This includes the following highways...
 New Jersey Turnpike between exits 8A and 9.
 Interstate 295 in New Jersey between mile markers 65 and 68.
 Garden State Parkway between mile markers 103 and 118.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with these storms. 
Move indoors immediately. Lightning is one of nature's leading 
killers. Remember, if you can hear thunder, you are close enough to 
be struck by lightning.

&&

LAT...LON 4039 7396 4023 7396 4022 7469 4038 7475
      4037 7472 4039 7463 4037 7461 4039 7459
      4043 7407 4041 7399 4044 7398
TIME...MOT...LOC 2005Z 262DEG 9KT 4029 7451 

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

$$

Gorse
934 
WWUS51 KPHI 062025
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
425 PM EDT Tue Aug 6 2024

NJC021-062034-
/O.CAN.KPHI.SV.W.0192.000000T0000Z-240806T2045Z/
Mercer NJ-
425 PM EDT Tue Aug 6 2024

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

The severe thunderstorm which prompted the warning has moved out of 
the warned area, however addition thunderstorms are occurring. 
Therefore, this warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern and central New Jersey.

LAT...LON 4039 7396 4023 7396 4023 7429 4041 7430
      4043 7407 4042 7405 4041 7398 4044 7398
TIME...MOT...LOC 2024Z 273DEG 13KT 4028 7407 

$$

NJC023-025-062045-
/O.CON.KPHI.SV.W.0192.000000T0000Z-240806T2045Z/
Monmouth NJ-Middlesex NJ-
425 PM EDT Tue Aug 6 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHEASTERN MONMOUTH AND SOUTHEASTERN MIDDLESEX COUNTIES...

At 424 PM EDT, a severe thunderstorm was located over Tinton Falls,
or near Long Branch, moving east 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...
Long Branch, Asbury Park, Middletown, Old Bridge, Marlboro, Tinton
Falls, Holmdel, Red Bank, Matawan, Highlands, Brownville, East
Freehold, Elberon, Navesink, Lincroft, Morganville, West Freehold,
Eatontown, Freehold, and West Long Branch.

This includes Garden State Parkway between mile markers 103 and 118.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 4039 7396 4023 7396 4023 7429 4041 7430
      4043 7407 4042 7405 4041 7398 4044 7398
TIME...MOT...LOC 2024Z 273DEG 13KT 4028 7407 

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

$$

Gorse
152 
WWUS51 KPHI 062041
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
441 PM EDT Tue Aug 6 2024

NJC023-025-062051-
/O.EXP.KPHI.SV.W.0192.000000T0000Z-240806T2045Z/
Monmouth NJ-Middlesex NJ-
441 PM EDT Tue Aug 6 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH AND
SOUTHEASTERN MIDDLESEX COUNTIES WILL EXPIRE AT 445 PM EDT...

The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds are still possible with
this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern and central New Jersey.

LAT...LON 4039 7396 4023 7396 4023 7429 4041 7430
      4043 7407 4042 7405 4041 7398 4044 7398
TIME...MOT...LOC 2041Z 262DEG 9KT 4029 7402 

$$

Gorse

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 9:37 AM EDTHeat AdvisoryPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more9 hr
Aug 6, 9:39 AM EDTSmall Craft AdvisoryPHI10 hr
Aug 6, 2:04 PM EDTSpecial Marine WarningPHI56 min
Aug 6, 2:41 PM EDTSevere Thunderstorm WarningPHIOcean19 min
Aug 6, 2:55 PM EDTSpecial Marine WarningPHI65 min
Aug 6, 3:15 PM EDTSpecial Marine WarningPHI60 min
Aug 6, 3:18 PM EDTSevere Thunderstorm WarningPHIMonmouth27 min
Aug 6, 3:21 PM EDTSevere Thunderstorm WarningPHIBurlington23 min
Aug 6, 3:23 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth37 min
Aug 6, 3:45 PM EDTFlash Flood WarningPHIMiddlesex, Monmouth2 hr
Aug 6, 4:10 PM EDTSpecial Marine WarningPHI65 min
Aug 6, 4:13 PM EDTFlash Flood WarningPHIMercer, Middlesex, Monmouth8 hr
Aug 6, 4:32 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Somerset43 min
Aug 6, 4:37 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset40 min
Aug 6, 4:55 PM EDTFlash Flood Warning Considerable damage threatPHIMonmouth6 hr
Aug 6, 4:56 PM EDTSevere Thunderstorm WarningPHIOcean49 min
Aug 6, 5:06 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset54 min
Aug 6, 5:29 PM EDTFlash Flood WarningPHIHunterdon, Middlesex, Morris, Somerset6 hr
Aug 6, 5:36 PM EDTFlash Flood WarningPHIMonmouth, Ocean8 hr
Aug 6, 6:37 PM EDTFlash Flood WarningPHIWarren3 hr
Aug 6, 6:39 PM EDTFlash Flood WarningPHIBurlington, Camden, Gloucester5 hr
Aug 6, 6:46 PM EDTFlash Flood WarningPHIMorris, Somerset4 hr
Aug 6, 6:57 PM EDTFlash Flood WarningPHIWarren3 hr
Aug 6, 7:04 PM EDTFlash Flood WarningPHIBurlington5 hr
Aug 6, 7:24 PM EDTFlash Flood WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean5 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2024Every 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.