Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 177, NWS Philadelphia/Mount Holly

July 8, 2023Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 8, 2023, 2:19 PM EDT for Middlesex County, Monmouth County, New Jersey. It was in force for 41 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 8, 2023, 2:19 PM EDT (18:19 UTC)
Expired
Jul 8, 2023, 3:00 PM EDT
In force
41 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

The radar

The Philadelphia radar (KDIX), 59 km from the middle of the area, began a volume at 18:19 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, 6.3 hours before the alert went out and 124 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 2023-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 387 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 2023-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
387 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

877 
WUUS51 KPHI 081819
SVRPHI
NJC023-025-081900-
/O.NEW.KPHI.SV.W.0177.230708T1819Z-230708T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
219 PM EDT Sat Jul 8 2023

The National Weather Service in Mount Holly NJ has issued a

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

* Until 300 PM EDT.

* At 219 PM EDT, a severe thunderstorm was located over East
  Brunswick, or near New Brunswick, moving east at 10 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  New Brunswick, Perth Amboy, Middletown, Old Bridge, East Brunswick,
  Sayreville, North Brunswick, Keansburg, Matawan, Jamesburg,
  Brownville, North Brunswick Township, Morganville, Lincroft,
  Whittingham, Woodbridge, South River, Highland Park, Spotswood and
  Keyport.

This includes the following highways...
 New Jersey Turnpike between exits 10 and 12.
 Interstate 287 in New Jersey near mile marker 0.
 Garden State Parkway between mile markers 112 and 129.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4035 7410 4034 7446 4047 7449 4058 7421
      4056 7421 4055 7425 4050 7426 4050 7428
      4046 7426 4044 7420 4046 7418 4045 7416
      4045 7413
TIME...MOT...LOC 1819Z 254DEG 9KT 4041 7441 

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

$$

Hoeflich
2 follow-up statements
618 
WWUS51 KPHI 081845
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
245 PM EDT Sat Jul 8 2023

NJC025-081855-
/O.CAN.KPHI.SV.W.0177.000000T0000Z-230708T1900Z/
Monmouth NJ-
245 PM EDT Sat Jul 8 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH 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 4036 7432 4034 7433 4034 7446 4038 7445
      4042 7440 4040 7427
TIME...MOT...LOC 1845Z 296DEG 5KT 4035 7439 

$$

NJC023-081900-
/O.CON.KPHI.SV.W.0177.000000T0000Z-230708T1900Z/
Middlesex NJ-
245 PM EDT Sat Jul 8 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR EAST CENTRAL MIDDLESEX COUNTY...

At 245 PM EDT, a severe thunderstorm was located over Jamesburg, or 9
miles south of New Brunswick, moving southeast at 5 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...
Old Bridge, East Brunswick, Jamesburg, Brownville, Whittingham,
Spotswood and Helmetta.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4036 7432 4034 7433 4034 7446 4038 7445
      4042 7440 4040 7427
TIME...MOT...LOC 1845Z 296DEG 5KT 4035 7439 

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

$$

Hoeflich
790 
WWUS51 KPHI 081850
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
250 PM EDT Sat Jul 8 2023

NJC023-081900-
/O.EXP.KPHI.SV.W.0177.000000T0000Z-230708T1900Z/
Middlesex NJ-
250 PM EDT Sat Jul 8 2023

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MIDDLESEX COUNTY
WILL EXPIRE AT 300 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.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.

LAT...LON 4036 7432 4034 7433 4034 7446 4038 7445
      4042 7440 4040 7427
TIME...MOT...LOC 1850Z 254DEG 9KT 4035 7438 

$$

Hoeflich

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 1:28 PM EDTAreal Flood AdvisoryPHICamden95 min
Jul 8, 1:49 PM EDTAreal Flood AdvisoryPHIBurlington3 hr
Jul 8, 2:13 PM EDTSpecial Weather StatementPHIMiddlesex32 min
Jul 8, 2:28 PM EDTAreal Flood AdvisoryPHICamden21 min
Jul 8, 2:40 PM EDTFlash Flood WarningPHICamden4 hr
Jul 8, 3:17 PM EDTFlood WatchPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more31 hr
Jul 8, 3:21 PM EDTSpecial Weather StatementPHIBurlington24 min
Jul 8, 3:38 PM EDTSpecial Weather StatementPHICamden, Gloucester37 min
Jul 8, 3:55 PM EDTSpecial Weather StatementPHIMercer35 min
Jul 8, 3:57 PM EDTSpecial Weather StatementPHIBurlington33 min
Jul 8, 4:11 PM EDTSpecial Weather StatementPHIGloucester34 min
Jul 8, 4:16 PM EDTAreal Flood AdvisoryPHIBurlington, Camden3 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2023Every 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.