Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 336, NWS Philadelphia/Mount Holly

September 8, 2023Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 8, 2023, 4:27 PM EDT for Burlington County, Ocean County, New Jersey. It was in force for 51 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
Sep 8, 2023, 4:27 PM EDT (20:27 UTC)
Expired
Sep 8, 2023, 5:18 PM EDT
In force
51 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Burlington County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 7 km from the middle of the area, began a volume at 20:29 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
Sep 8, 4:38 PM EDTHAIL 1.5Browns Mills, NJSocial media photo of ping pong ball sized hail in Browns Mills. Time estimated from radar.
Sep 8, 4:40 PM EDTHAIL 0.75Browns Mills, NJReport on social media of penny-sized hail in Browns Mills.

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
Sep 8, 3:11 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.5 hours before the alert went out and 167 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 2023-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2469 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 2023-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
2469 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
566 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.0

Open this sounding in Storm Lab

The text

As transmitted.

832 
WUUS51 KPHI 082027
SVRPHI
NJC005-029-082130-
/O.NEW.KPHI.SV.W.0336.230908T2027Z-230908T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
427 PM EDT Fri Sep 8 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Ocean County in southern New Jersey...
  Northeastern Burlington County in southern New Jersey...

* Until 530 PM EDT.

* At 427 PM EDT, a severe thunderstorm was located near Browns Mills,
  or 16 miles west of Toms River, and is nearly stationary.

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

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Presidential Lakes Estates, Lakehurst, Cassville, Presidential
  Lakes, Woodruff, Cedar Glen Lakes, Six Flags Theme Park, Whiting,
  Cedar Glen West, Browns Mills, Leisure Village West-Pine Lake Park,
  Country Lake Estates, Leisure Knoll, New Egypt, Crestwood Village
  and Fort Dix.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to large 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.

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

&&

LAT...LON 3986 7452 3994 7463 4013 7448 4015 7444
      4003 7424
TIME...MOT...LOC 2027Z 221DEG 4KT 3997 7450 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann
2 follow-up statements
869 
WWUS51 KPHI 082049
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
449 PM EDT Fri Sep 8 2023

NJC005-029-082130-
/O.CON.KPHI.SV.W.0336.000000T0000Z-230908T2130Z/
Ocean NJ-Burlington NJ-
449 PM EDT Fri Sep 8 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHWESTERN OCEAN AND NORTHEASTERN BURLINGTON COUNTIES...

At 449 PM EDT, a severe thunderstorm was located near Woodruff, or 15
miles west of Toms River, moving northeast at 5 mph.

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

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Wind damage to roofs, 
         siding, trees, and power lines is possible.

Locations impacted include...
Lakehurst, Cassville, Cedar Glen West, Woodruff, Six Flags Theme
Park, Cedar Glen Lakes, Leisure Village West-Pine Lake Park, Browns
Mills, New Egypt, Leisure Knoll and Fort Dix.

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.

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

&&

LAT...LON 3993 7446 4000 7458 4013 7448 4015 7444
      4003 7424
TIME...MOT...LOC 2049Z 217DEG 5KT 4001 7447 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann
628 
WWUS51 KPHI 082118
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
518 PM EDT Fri Sep 8 2023

NJC005-029-082128-
/O.CAN.KPHI.SV.W.0336.000000T0000Z-230908T2130Z/
Ocean NJ-Burlington NJ-
518 PM EDT Fri Sep 8 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OCEAN AND
NORTHEASTERN BURLINGTON COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

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

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 3993 7446 4000 7458 4013 7448 4015 7444
      4003 7424
TIME...MOT...LOC 2115Z 221DEG 4KT 4004 7444 

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 9:46 PM EDTSpecial Weather StatementPHISussex29 min
Sep 8, 6:02 AM EDTSpecial Marine WarningPHI40 min
Sep 8, 1:36 PM EDTSpecial Weather StatementPHIBurlington24 min
Sep 8, 1:37 PM EDTSpecial Weather StatementPHIMonmouth23 min
Sep 8, 1:46 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean44 min
Sep 8, 1:50 PM EDTSpecial Marine WarningPHI115 min
Sep 8, 1:54 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean51 min
Sep 8, 2:27 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth48 min
Sep 8, 2:30 PM EDTSevere Thunderstorm WarningPHIBurlington, Middlesex, Monmouth, Ocean45 min
Sep 8, 2:33 PM EDTAreal Flood AdvisoryPHIBurlington, Monmouth, Ocean3 hr
Sep 8, 2:44 PM EDTSpecial Marine WarningPHI18 min
Sep 8, 2:45 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean45 min
Sep 8, 2:53 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Somerset52 min
Sep 8, 3:17 PM EDTSpecial Marine WarningPHI58 min
Sep 8, 3:27 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Monmouth, Ocean63 min
Sep 8, 3:29 PM EDTFlash Flood WarningPHIBurlington, Ocean4 hr
Sep 8, 3:31 PM EDTSevere Thunderstorm WarningPHICumberland, Salem44 min
Sep 8, 3:36 PM EDTSevere Thunderstorm WarningPHIMorris30 min
Sep 8, 3:43 PM EDTSpecial Weather StatementPHIMiddlesex32 min
Sep 8, 3:58 PM EDTSpecial Weather StatementPHISomerset32 min
Sep 8, 4:24 PM EDTSevere Thunderstorm WarningPHIHunterdon51 min
Sep 8, 4:30 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Monmouth, Ocean60 min
Sep 8, 4:50 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren40 min
Sep 8, 5:12 PM EDTAreal Flood AdvisoryPHIHunterdon3 hr
Sep 8, 5:14 PM EDTSevere Thunderstorm WarningPHIHunterdon46 min
Sep 8, 5:21 PM EDTFlash Flood WarningPHIHunterdon4 hr
Sep 8, 5:34 PM EDTSevere Thunderstorm WarningPHIWarren41 min
Sep 8, 5:49 PM EDTSevere Thunderstorm WarningPHISussex41 min
Sep 8, 6:11 PM EDTSpecial Weather StatementPHIWarren34 min
Sep 8, 6:34 PM EDTAreal Flood AdvisoryPHISussex, Warren3 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.