Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 409, NWS Philadelphia/Mount Holly

November 1, 20196 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 1, 2019, 12:07 AM EDT for 6 counties in New Jersey. It was in force for 83 min. 4 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
Nov 1, 2019, 12:07 AM EDT (04:07 UTC)
Expired
Nov 1, 2019, 1:30 AM EDT
In force
83 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 23 km from the middle of the area, began a volume at 04:07 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
Nov 1, 1:06 AM EDTTSTM WND DMG2 Ne Ramtown, NJDOWNED TREE ON GARDEN STATE PARKWAY SOUTHBOUND SOUTH OF EXIT 98. LANE RESTRICTIONS IN PLACE. TIME ESTIMATED FROM RADAR.
Nov 1, 1:06 AM EDTTSTM WND DMG3 Ese Farmingdale, NJDOWNED TREES AND WIRES ON STATE HIGHWAY 34 SOUTH OF MONMOUTH EXECUTIVE AIRPORT. ALL LANES CLOSED. TIME ESTIMATED FROM RADAR.
Nov 1, 1:08 AM EDTTSTM WND DMG2 Wnw Neptune City, NJLARGE TREE UPROOTED. TIME ESTIMATED FROM RADAR.
Nov 1, 1:18 AM EDTTSTM WND GST 655 Se Mystic Island, NJHADS GAUGE.

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
Oct 31, 7:56 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 4.1 hours before the alert went out and 188 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 2019-11-01Temperature 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 2019-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 491 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
486 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
491 m²/s²
0-3 km storm-relative helicity
510 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

608 
WUUS51 KPHI 010407
SVRPHI
NJC001-005-009-011-025-029-010530-
/O.NEW.KPHI.SV.W.0409.191101T0407Z-191101T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1207 AM EDT Fri Nov 1 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Atlantic County in southern New Jersey...
  Cumberland County in southern New Jersey...
  Ocean County in southern New Jersey...
  Cape May County in southern New Jersey...
  Eastern Burlington County in southern New Jersey...
  Monmouth County in central New Jersey...

* Until 130 AM EDT.

* At 1207 AM EDT, severe thunderstorms were located along a line
  extending from Mount Laurel to Bridgeton, moving northeast at 50
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Toms River, Vineland, Atlantic City, Long Branch, Millville,
  Bridgeton, Asbury Park, Ocean City, Cape May, Sandy Hook,
  Cumberland, Lakewood, Middletown, Old Bridge, Jackson, Howell,
  Marlboro, Barnegat, Pleasantville and Tinton Falls.

This includes the following highways...
 Atlantic City Expressway between mile markers 0 and 29.
 Garden State Parkway between mile markers 0 and 120.
 Interstate 195 in New Jersey between mile markers 16 and 34.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.

&&

LAT...LON 3989 7397 3915 7440 3889 7461 3877 7483
      3878 7484 3942 7549 3939 7542 3943 7541
      3946 7508 3951 7499 3973 7474 4003 7454
      4008 7457 4017 7444 4044 7424 4041 7401
      4041 7399 4048 7402 4048 7401 4043 7397
TIME...MOT...LOC 0407Z 227DEG 44KT 3996 7491 3942 7520 

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

Iovino
1 follow-up statement
579 
WWUS51 KPHI 010459
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1259 AM EDT Fri Nov 1 2019

NJC011-010507-
/O.CAN.KPHI.SV.W.0409.000000T0000Z-191101T0530Z/
Cumberland NJ-
1259 AM EDT Fri Nov 1 2019

...THE SEVERE THUNDERSTORM WARNING FOR CUMBERLAND COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of Cumberland 
County. Therefore, the warning has been cancelled.

LAT...LON 3989 7397 3915 7440 3889 7461 3877 7483
      3900 7506 3919 7496 3918 7491 3939 7486
      4017 7444 4044 7424 4041 7401 4041 7399
      4048 7402 4048 7401 4043 7397
TIME...MOT...LOC 0457Z 251DEG 49KT 4031 7418 3931 7459 

$$

NJC001-005-009-025-029-010530-
/O.CON.KPHI.SV.W.0409.000000T0000Z-191101T0530Z/
Atlantic NJ-Ocean NJ-Cape May NJ-Burlington NJ-Monmouth NJ-
1259 AM EDT Fri Nov 1 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT
FOR ATLANTIC...OCEAN...CAPE MAY...SOUTHEASTERN BURLINGTON AND
MONMOUTH COUNTIES...

At 1257 AM EDT, severe thunderstorms were located along a line
extending from near Holmdel to Somers Point, moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Toms River, Atlantic City, Long Branch, Asbury Park, Ocean City, Cape
May, Sandy Hook, Lakewood, Middletown, Old Bridge, Jackson, Howell,
Marlboro, Barnegat, Pleasantville, Tinton Falls, Holmdel, Hammonton,
Red Bank and Beachwood.

This includes the following highways...
 Atlantic City Expressway between mile markers 0 and 23.
 Garden State Parkway between mile markers 0 and 120.
 Interstate 195 in New Jersey between mile markers 16 and 34.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.

&&

LAT...LON 3989 7397 3915 7440 3889 7461 3877 7483
      3900 7506 3919 7496 3918 7491 3939 7486
      4017 7444 4044 7424 4041 7401 4041 7399
      4048 7402 4048 7401 4043 7397
TIME...MOT...LOC 0457Z 251DEG 49KT 4031 7418 3931 7459 

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

Iovino

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 31, 10:43 PM EDTSevere Thunderstorm WarningPHISussex, Warren77 min
Oct 31, 11:14 PM EDTFlash Flood WarningPHIWarren4 hr
Oct 31, 11:15 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem60 min
Oct 31, 11:24 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Morris, Somerset66 min
Oct 31, 11:31 PM EDTSpecial Marine WarningPHI89 min
Oct 31, 11:54 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Cumberland, Gloucester, Mercer, Middlesex and 2 more66 min
Oct 31, 11:54 PM EDTTornado WarningPHIHunterdon, Mercer, Middlesex, Somerset36 min
Nov 1, 12:24 AM EDTSpecial Marine WarningPHI96 min
Nov 1, 12:31 AM EDTSpecial Marine WarningPHI89 min
Nov 1, 3:06 AM EDTAreal Flood WarningPHIWarren4 hr
Nov 1, 3:31 AM EDTFreeze WatchPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Hunterdon and 4 more6 hr
Nov 1, 9:12 AM EDTFreeze WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 8 more25 hr
Nov 1, 9:13 AM EDTSmall Craft AdvisoryPHI9 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019Every severe thunderstorm warning in 2019

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.