Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 38, NWS Philadelphia/Mount Holly

May 26, 2021Burlington County, Camden County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 26, 2021, 10:35 PM EDT for Burlington County, Camden County, Ocean County, New Jersey. It was in force for 40 min. 6 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
May 26, 2021, 10:35 PM EDT (02:35 UTC)
Expired
May 26, 2021, 11:15 PM EDT
In force
40 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Burlington County, NJ, Camden County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 33 km from the middle of the area, began a volume at 02:35 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
May 26, 10:35 PM EDTTSTM WND GST 502 Sw Rancocas, NJBURLINGTON COUNTY COMMUNITY AGRICULTURAL CENTER NJ WEATHER NETWORK.
May 26, 10:37 PM EDTTSTM WND DMG1 Se Willingboro, NJDOWNED TREE LIMBS AND WIRES NEAR GLOBE LANE. TIME ESTIMATED FROM RADAR.
May 26, 10:40 PM EDTTSTM WND DMG1 Nne Rancocas, NJDOWNED TREE LIMBS AND WIRES NEAR NOTTINGHAM DRIVE. TIME ESTIMATED FROM RADAR.
May 26, 10:42 PM EDTTSTM WND DMG1 Sse Mount Holly Wfo, NJDOWNED WIRES NEAR LAMBERT DRIVE. TIME ESTIMATED FROM RADAR.
May 26, 10:42 PM EDTTSTM WND DMGMount Holly, NJDOWNED TREE LIMBS AND WIRES NEAR SHREVE STREET. TIME ESTIMATED FROM RADAR.
May 26, 10:53 PM EDTTSTM WND DMGMedford, NJTREE DOWN IN MEDFORD. TIME ESTIMATED BY RADAR.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 2.6 hours before the alert went out and 194 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 2021-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 357 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 00:00Z on 2021-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
357 J/kg
Mixed-layer CIN
-174 J/kg
Mixed-layer LCL
956 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

301 
WUUS51 KPHI 270235
SVRPHI
NJC005-007-029-270315-
/O.NEW.KPHI.SV.W.0038.210527T0235Z-210527T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1035 PM EDT Wed May 26 2021

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  West central Ocean County in southern New Jersey...
  North central Camden County in southern New Jersey...
  Central Burlington County in southern New Jersey...

* Until 1115 PM EDT.

* At 1035 PM EDT, a severe thunderstorm was located over Mount
  Laurel, or 11 miles east of Camden, moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Cherry Hill, Evesham, Mount Laurel, Willingboro, Medford,
  Lumberton, Burlington, Mount Holly, Tabernacle, Shamong,
  Presidential Lakes Estates, Pemberton, Wrightstown, Ramblewood,
  Barclay-Kingston, Cherry Hill Mall, Marlton, Leisuretowne,
  Jacksonville and Presidential Lakes.

People at the Burlington County Mega Site should seek safe shelter
immediately!

This includes the following highways...
 New Jersey Turnpike between exits 4 and 5.
 Interstate 295 in New Jersey between mile markers 34 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

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.

&&

LAT...LON 3991 7504 4007 7488 3999 7441 3974 7463
TIME...MOT...LOC 0235Z 280DEG 24KT 3995 7488 

HAIL...<.75IN
WIND...60MPH
 
$$

Meola
2 follow-up statements
825 
WWUS51 KPHI 270302
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1102 PM EDT Wed May 26 2021

NJC007-270312-
/O.CAN.KPHI.SV.W.0038.000000T0000Z-210527T0315Z/
Camden NJ-
1102 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CAMDEN 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 3983 7484 4004 7471 3999 7441 3974 7463
TIME...MOT...LOC 0302Z 288DEG 18KT 3989 7472 

$$

NJC005-029-270315-
/O.CON.KPHI.SV.W.0038.000000T0000Z-210527T0315Z/
Ocean NJ-Burlington NJ-
1102 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR WEST CENTRAL OCEAN AND CENTRAL BURLINGTON COUNTIES...

At 1102 PM EDT, a severe thunderstorm was located over Leisuretowne,
or 20 miles east of Camden, moving east at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Tabernacle, Shamong, Presidential Lakes Estates, Pemberton,
Wrightstown, Presidential Lakes, Browns Mills, Jobstown,
Leisuretowne, Medford Lakes, Country Lake Estates, Pemberton Heights
and Fort Dix.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

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

&&

LAT...LON 3983 7484 4004 7471 3999 7441 3974 7463
TIME...MOT...LOC 0302Z 288DEG 18KT 3989 7472 

HAIL...<.75IN
WIND...60MPH
 
$$

Meola
797 
WWUS51 KPHI 270311
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1111 PM EDT Wed May 26 2021

NJC005-029-270321-
/O.EXP.KPHI.SV.W.0038.000000T0000Z-210527T0315Z/
Ocean NJ-Burlington NJ-
1111 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL OCEAN AND CENTRAL
BURLINGTON COUNTIES WILL EXPIRE AT 1115 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3983 7484 4004 7471 3999 7441 3974 7463
TIME...MOT...LOC 0311Z 280DEG 24KT 3988 7466 

$$

Meola

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 8:36 PM EDTSpecial Weather StatementPHICape May39 min
May 26, 8:40 PM EDTSpecial Marine WarningPHI65 min
May 26, 10:14 PM EDTSpecial Weather StatementPHIAtlantic, Burlington, Camden, Gloucester46 min
May 26, 10:40 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester50 min
May 26, 11:20 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean40 min
May 26, 11:21 PM EDTSpecial Marine WarningPHI54 min
May 27, 12:07 AM EDTSpecial Marine WarningPHI23 min
May 27, 3:30 PM EDTGale WatchPHI12 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.