Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 286, NWS Philadelphia/Mount Holly

September 1, 2021Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 1, 2021, 7:58 AM EDT for Burlington County, Ocean County, New Jersey. It was in force for 47 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
Sep 1, 2021, 7:58 AM EDT (11:58 UTC)
Expired
Sep 1, 2021, 8:45 AM EDT
In force
47 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Burlington County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 15 km from the middle of the area, began a volume at 12:01 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 00:00Z, 12.0 hours before the alert went out and 180 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 00:00Z on 2021-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2021-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1939 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

668 
WUUS51 KPHI 011158
SVRPHI
NJC005-029-011245-
/O.NEW.KPHI.SV.W.0286.210901T1158Z-210901T1245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
758 AM EDT Wed Sep 1 2021

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Ocean County in southern New Jersey...
  Southeastern Burlington County in southern New Jersey...

* Until 845 AM EDT.

* At 757 AM EDT, a severe thunderstorm was located near Wharton State
  Forest, or 25 miles southwest of Toms River, moving northeast at 40
  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...
  Toms River, Beachwood, Shamong, Presidential Lakes Estates, Seaside
  Heights, Lakehurst, Holiday City South, Chatsworth, Wharton State
  Forest, Holiday City-Berkeley, Bamber Lake, Cedar Glen Lakes,
  Whiting, Pine Ridge At Crestwood, Old Halfway, Leisure Village
  West-Pine Lake Park, Pleasant Plains, Dover Beaches South, South
  Toms River and Island Heights.

This includes Garden State Parkway between mile markers 76 and 84.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3967 7464 3978 7473 4005 7438 3994 7405
TIME...MOT...LOC 1157Z 234DEG 34KT 3976 7456 

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

$$

JEO
2 follow-up statements
084 
WWUS51 KPHI 011214
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
814 AM EDT Wed Sep 1 2021

NJC005-029-011245-
/O.CON.KPHI.SV.W.0286.000000T0000Z-210901T1245Z/
Ocean NJ-Burlington NJ-
814 AM EDT Wed Sep 1 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM EDT
FOR CENTRAL OCEAN AND EAST CENTRAL BURLINGTON COUNTIES...

At 813 AM EDT, a severe thunderstorm was located over Old Halfway, or
14 miles southwest of Toms River, moving northeast at 40 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...
Toms River, Beachwood, Presidential Lakes Estates, Seaside Heights,
Lakehurst, Holiday City-Berkeley, Bamber Lake, Cedar Glen Lakes,
Whiting, Holiday City South, Pine Ridge At Crestwood, Chatsworth, Old
Halfway, Leisure Village West-Pine Lake Park, Pleasant Plains, Dover
Beaches South, South Toms River, Island Heights, Silver Ridge and
Leisure Knoll.

This includes Garden State Parkway between mile markers 76 and 84.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3974 7452 3984 7465 4005 7438 3994 7405
TIME...MOT...LOC 1213Z 234DEG 34KT 3985 7439 

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

$$

JEO
135 
WWUS51 KPHI 011242
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
842 AM EDT Wed Sep 1 2021

NJC005-029-011252-
/O.EXP.KPHI.SV.W.0286.000000T0000Z-210901T1245Z/
Ocean NJ-Burlington NJ-
842 AM EDT Wed Sep 1 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL OCEAN AND EAST CENTRAL
BURLINGTON COUNTIES WILL EXPIRE AT 845 AM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3974 7452 3984 7465 4005 7438 3994 7405
TIME...MOT...LOC 1242Z 234DEG 34KT 3991 7429 

$$

JEO

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 3:23 AM EDTGale WarningPHI32 hr
Sep 1, 3:23 AM EDTSmall Craft AdvisoryPHI41 hr
Sep 1, 4:34 AM EDTRip Current StatementPHIAtlantic, Cape May, Monmouth, Ocean39 hr
Sep 1, 8:39 AM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean39 min
Sep 1, 9:11 AM EDTSpecial Marine WarningPHI64 min
Sep 1, 11:24 AM EDTAreal Flood AdvisoryPHISussex, Warren3 hr
Sep 1, 4:04 PM EDTAreal Flood WarningPHIWarren24 hr
Sep 1, 4:12 PM EDTFlash Flood WarningPHIHunterdon, Warren7 hr
Sep 1, 4:27 PM EDTRiver Flood WarningPHIMorris, Somerset6 days
Sep 1, 4:27 PM EDTRiver Flood WarningPHIEssex, Morris, Passaic8 days
Sep 1, 4:27 PM EDTRiver Flood WarningPHIEssex, Morris, Passaic6 days
Sep 1, 4:27 PM EDTRiver Flood WarningPHIEssex, Passaic21 days
Sep 1, 4:33 PM EDTRiver Flood WarningPHIMorris, Passaic46 hr
Sep 1, 4:40 PM EDTRiver Flood WarningPHIHunterdon, Somerset36 hr
Sep 1, 4:40 PM EDTRiver Flood WarningPHISomerset22 hr
Sep 1, 4:40 PM EDTRiver Flood WarningPHIMiddlesex, Somerset42 hr
Sep 1, 4:40 PM EDTRiver Flood WarningPHIMiddlesex, Somerset48 hr
Sep 1, 4:41 PM EDTRiver Flood WarningPHISomerset61 hr
Sep 1, 5:13 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer47 min
Sep 1, 5:26 PM EDTFlash Flood WarningPHIBurlington, Camden, Gloucester, Salem9 hr
Sep 1, 5:33 PM EDTSpecial Marine WarningPHI27 min
Sep 1, 5:34 PM EDTTornado WarningPHIMercer26 min
Sep 1, 5:35 PM EDTTornado WarningPHICumberland, Salem25 min
Sep 1, 5:42 PM EDTFlash Flood WarningPHIHunterdon, Mercer, Morris, Somerset, Warren10 hr
Sep 1, 5:57 PM EDTTornado WarningPHIGloucester, Salem33 min
Sep 1, 5:57 PM EDTTornado WarningPHIHunterdon, Mercer, Somerset33 min
Sep 1, 6:05 PM EDTFlash Flood WarningPHIHunterdon, Mercer, Middlesex, Morris, Somerset10 hr
Sep 1, 6:08 PM EDTFlash Flood WarningPHIHunterdon, Morris, Somerset, Sussex, Warren6 hr
Sep 1, 6:14 PM EDTSpecial Marine WarningPHI61 min
Sep 1, 6:20 PM EDTTornado WarningPHIHunterdon, Mercer, Somerset40 min
Sep 1, 6:22 PM EDTTornado Warning Tornado observedPHIBurlington, Camden, Gloucester23 min
Sep 1, 6:42 PM EDTTornado WarningPHIBurlington, Camden33 min
Sep 1, 6:59 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset61 min
Sep 1, 7:04 PM EDTTornado Warning EmergencyTornado observedCatastrophic damage threatPHIBurlington, Mercer26 min
Sep 1, 7:22 PM EDTTornado WarningPHIHunterdon, Mercer11 min
Sep 1, 7:28 PM EDTTornado WarningPHIMercer, Middlesex, Morris, Somerset47 min
Sep 1, 7:31 PM EDTFlash Flood Warning EmergencyCatastrophic damage threatPHIHunterdon, Mercer, Somerset4 hr
Sep 1, 7:44 PM EDTSpecial Marine WarningPHI61 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2021Every severe thunderstorm warning in 2021

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.