Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 41, NWS Philadelphia/Mount Holly

June 22, 2024Middlesex County, Morris County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 22, 2024, 7:32 PM EDT for Middlesex County, Morris County, Somerset County, New Jersey. It was in force for 22 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
Jun 22, 2024, 7:32 PM EDT (23:32 UTC)
Expired
Jun 22, 2024, 7:54 PM EDT
In force
22 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Middlesex County, NJ, Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 23:33 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 nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.5 hours before the alert went out and 139 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 2024-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 264 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 2024-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.1939Sfc1 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
264 J/kg
Mixed-layer CIN
-142 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

499 
WUUS51 KPHI 222332
SVRPHI
NJC023-027-035-230015-
/O.NEW.KPHI.SV.W.0041.240622T2332Z-240623T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
732 PM EDT Sat Jun 22 2024

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  South central Morris County in northern New Jersey...
  Northern Somerset County in northern New Jersey...
  North central Middlesex County in northern New Jersey...

* Until 815 PM EDT.

* At 731 PM EDT, a severe thunderstorm was located over Bridgewater,
  or near Somerville, moving east at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Somerville, Bridgewater, Middlesex, Bound Brook, Far Hills,
  Martinsville, Millington, Basking Ridge, South Plainfield, North
  Plainfield, Bernardsville, Dunellen, Raritan, and Watchung.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 28 and 43.
 Interstate 287 in New Jersey between mile markers 13 and 27.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4056 7470 4068 7472 4073 7439 4072 7439
      4067 7446 4066 7445 4067 7441 4065 7440
      4063 7442 4060 7446 4060 7439 4056 7439
TIME...MOT...LOC 2331Z 263DEG 14KT 4062 7461 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AKL
2 follow-up statements
101 
WWUS51 KPHI 222344
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
744 PM EDT Sat Jun 22 2024

NJC023-027-035-230015-
/O.CON.KPHI.SV.W.0041.000000T0000Z-240623T0015Z/
Morris NJ-Somerset NJ-Middlesex NJ-
744 PM EDT Sat Jun 22 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR SOUTH CENTRAL MORRIS...NORTHEASTERN SOMERSET AND NORTH CENTRAL
MIDDLESEX COUNTIES...

At 744 PM EDT, a severe thunderstorm was located over Martinsville,
or near Somerville, moving east at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Somerville, Middlesex, Bound Brook, Far Hills, Martinsville,
Millington, Basking Ridge, South Plainfield, North Plainfield,
Bernardsville, Dunellen, and Watchung.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 34 and 43.
 Interstate 287 in New Jersey between mile markers 13 and 15, and
between mile markers 25 and 28.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4056 7459 4070 7461 4073 7439 4072 7439
      4067 7446 4066 7445 4067 7441 4065 7440
      4063 7442 4060 7446 4060 7439 4056 7439
TIME...MOT...LOC 2344Z 263DEG 14KT 4063 7454 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AKL
928 
WWUS51 KPHI 222354
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
754 PM EDT Sat Jun 22 2024

NJC023-027-035-230003-
/O.CAN.KPHI.SV.W.0041.000000T0000Z-240623T0015Z/
Morris NJ-Somerset NJ-Middlesex NJ-
754 PM EDT Sat Jun 22 2024

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MORRIS...
NORTHEASTERN SOMERSET AND NORTH CENTRAL 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 7459 4070 7461 4073 7439 4072 7439
      4067 7446 4066 7445 4067 7441 4065 7440
      4063 7442 4060 7446 4060 7439 4056 7439
TIME...MOT...LOC 2351Z 263DEG 14KT 4063 7449 

$$

AKL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 2:38 AM EDTSmall Craft AdvisoryPHI71 hr
Jun 22, 3:47 AM EDTExcessive Heat WarningPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 4 more40 hr
Jun 22, 12:26 PM EDTSevere Thunderstorm WarningPHISussex34 min
Jun 22, 3:06 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Somerset20 min
Jun 22, 4:10 PM EDTSevere Thunderstorm WarningPHIMonmouth35 min
Jun 22, 4:15 PM EDTSpecial Marine WarningPHI45 min
Jun 22, 4:39 PM EDTSpecial Marine WarningPHI17 min
Jun 22, 4:39 PM EDTRip Current StatementPHIAtlantic, Cape May, Ocean11 hr
Jun 22, 4:39 PM EDTRip Current StatementPHIAtlantic, Cape May, Monmouth, Ocean11 hr
Jun 22, 6:39 PM EDTSevere Thunderstorm WarningPHIMorris36 min
Jun 22, 7:07 PM EDTSevere Thunderstorm WarningPHIMorris23 min
Jun 22, 7:48 PM EDTFlash Flood WarningPHIHunterdon4 hr
Jun 22, 7:57 PM EDTSevere Thunderstorm WarningPHIHunterdon17 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.