Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 59, NWS Philadelphia/Mount Holly

June 3, 2020Morris County, Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 3, 2020, 7:53 PM EDT for Morris County, Sussex County, New Jersey. It was in force for 36 min. 1 report 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
Jun 3, 2020, 7:53 PM EDT (23:53 UTC)
Expired
Jun 3, 2020, 8:29 PM EDT
In force
36 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Morris County, NJ, Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 116 km from the middle of the area, began a volume at 23:53 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
Jun 3, 7:56 PM EDTTSTM WND DMGVernon, NJSEVERAL REPORTS OF TREE LIMBS AND POWER LINES DOWN NEAR ROUTE 515 AND VERNON CROSSING ROAD. TIME ESTIMATED FROM 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 12:00Z, 11.9 hours before the alert went out and 135 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 2020-06-03Temperature 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 12:00Z on 2020-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 247 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
1089 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
247 m²/s²
0-3 km storm-relative helicity
376 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

447 
WUUS51 KPHI 032353
SVRPHI
NJC027-037-040100-
/O.NEW.KPHI.SV.W.0059.200603T2353Z-200604T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
753 PM EDT Wed Jun 3 2020

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern Morris County in northern New Jersey...
  Central Sussex County in northwestern New Jersey...

* Until 900 PM EDT.

* At 753 PM EDT, severe thunderstorms were located along a line
  extending from near Monroe to near Warwick to near Highland Lake to
  near Franklin to Crandon Lakes to Echo Lake, moving east 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...
  Morristown, Newton, Dover, Madison, Hopatcong, Florham Park, East
  Hanover, Lincoln Park, Kinnelon, Boonton, Butler, Wharton,
  Rockaway, Morris Plains, Mount Arlington, Franklin, Mountain Lakes,
  Stanhope, Riverdale and Hamburg.

This includes the following highways...
 Interstate 287 in New Jersey between mile markers 36 and 54.
 Interstate 80 in New Jersey between mile markers 23 and 49.

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 4120 7437 4110 7449 4104 7450 4105 7445
      4102 7443 4100 7430 4090 7427 4091 7433
      4086 7432 4079 7437 4076 7438 4075 7436
      4074 7437 4091 7477 4101 7488 4115 7473
      4121 7460 4128 7454
TIME...MOT...LOC 2353Z 292DEG 42KT 4136 7421 4128 7443 4119 7451 4112
7464 4111 7483 4107 7508

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

Gorse
2 follow-up statements
188 
WWUS51 KPHI 040017
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
817 PM EDT Wed Jun 3 2020

NJC027-037-040100-
/O.CON.KPHI.SV.W.0059.000000T0000Z-200604T0100Z/
Morris NJ-Sussex NJ-
817 PM EDT Wed Jun 3 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR NORTHERN MORRIS AND SOUTHWESTERN SUSSEX COUNTIES...

At 817 PM EDT, severe thunderstorms were located along a line
extending from Pomona to Ringwood to Bloomingdale to Lake Telemark to
Hopatcong to near Hope, moving southeast at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Morristown, Dover, Madison, Hopatcong, Florham Park, East Hanover,
Lincoln Park, Kinnelon, Boonton, Butler, Wharton, Rockaway, Morris
Plains, Mount Arlington, Mountain Lakes, Stanhope, Riverdale,
Netcong, Victory Gardens and Andover.

This includes the following highways...
 Interstate 287 in New Jersey between mile markers 36 and 54.
 Interstate 80 in New Jersey between mile markers 23 and 49.

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 4104 7450 4105 7445 4102 7443 4100 7430
      4090 7427 4091 7433 4086 7432 4079 7437
      4076 7438 4075 7436 4074 7437 4091 7477
      4101 7488
TIME...MOT...LOC 0017Z 299DEG 37KT 4120 7404 4112 7426 4103 7434 4096
7447 4096 7466 4092 7491

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

Gorse
257 
WWUS51 KPHI 040029
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
829 PM EDT Wed Jun 3 2020

NJC027-037-040039-
/O.CAN.KPHI.SV.W.0059.000000T0000Z-200604T0100Z/
Morris NJ-Sussex NJ-
829 PM EDT Wed Jun 3 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MORRIS AND
SOUTHWESTERN SUSSEX COUNTIES IS CANCELLED...

The storms which prompted the warning have weakened. Therefore, the 
warning has been cancelled.

LAT...LON 4104 7450 4105 7445 4102 7443 4100 7430
      4090 7427 4091 7433 4086 7432 4079 7437
      4076 7438 4075 7436 4074 7437 4091 7477
      4101 7488
TIME...MOT...LOC 0028Z 292DEG 42KT 4115 7387 4107 7409 4098 7417 4091
7430 4091 7449 4087 7474

$$

Gorse

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 12:24 AM EDTSpecial Weather StatementPHIWarren51 min
Jun 3, 1:08 AM EDTSpecial Weather StatementPHISomerset37 min
Jun 3, 1:44 AM EDTAreal Flood AdvisoryPHIHunterdon, Middlesex, Morris, Somerset, Warren3 hr
Jun 3, 9:48 AM EDTSmall Craft AdvisoryPHI8 hr
Jun 3, 11:04 AM EDTSevere Thunderstorm WarningPHIHunterdon, Warren41 min
Jun 3, 11:38 AM EDTSevere Thunderstorm WarningPHIHunterdon37 min
Jun 3, 11:59 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more46 min
Jun 3, 12:06 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem39 min
Jun 3, 12:35 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer, Middlesex, Monmouth, Ocean and 1 more55 min
Jun 3, 12:38 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more69 min
Jun 3, 12:43 PM EDTSpecial Marine WarningPHI43 min
Jun 3, 1:01 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean28 min
Jun 3, 1:14 PM EDTSpecial Marine WarningPHI61 min
Jun 3, 1:14 PM EDTSpecial Weather StatementPHICape May, Cumberland61 min
Jun 3, 1:20 PM EDTSpecial Marine WarningPHI55 min
Jun 3, 2:11 PM EDTSpecial Marine WarningPHI34 min
Jun 3, 7:02 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Cumberland, Gloucester, Salem58 min
Jun 3, 7:11 PM EDTSevere Thunderstorm WarningPHISussex, Warren64 min
Jun 3, 7:21 PM EDTTornado WarningPHIBurlington, Camden, Gloucester24 min
Jun 3, 7:55 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more33 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2020Every severe thunderstorm warning in 2020

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.