Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 261, NWS Philadelphia/Mount Holly

July 22, 2019Morris County, Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 22, 2019, 3:12 PM EDT for Morris County, Sussex County, New Jersey. It was in force for 48 min. 9 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: Jul 22, 2019, 3:12 PM EDT (19:12 UTC)
Expired: Jul 22, 2019, 4:00 PM EDT
In force: 48 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 70.0 mph

Counties Morris County, NJ, Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 112 km from the middle of the area, began a volume at 19:14 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

Time	Report	Where	Remark
Jul 22, 3:12 PM EDT	TSTM WND DMG	Hopatcong, NJ	DOWNED TREES AND POWER LINES THROUGHOUT TOWN. TIME ESTIMATED FROM RADAR.
Jul 22, 3:14 PM EDT	TSTM WND DMG	1 Ene Landing, NJ	TREES AND WIRES DOWN ON OLIVER RD. TIME ESTIMATED FROM RADAR.
Jul 22, 3:14 PM EDT	TSTM WND DMG	Roxbury, NJ	MULTIPLE REPORTS OF WIRES DOWN NEAR ROXBURY. TIME ESTIMATED FROM RADAR.
Jul 22, 3:20 PM EDT	HAIL 0.88	Jefferson Twp, NJ	HAIL FELL FOR UP TO 15 MINUTES.
Jul 22, 3:28 PM EDT	TSTM WND DMG	1 S Dover, NJ	TREES AND WIRES DOWN ON PENN AVE. TIME ESTIMATED FROM RADAR.
Jul 22, 3:30 PM EDT	TSTM WND DMG	1 Nne Rockaway, NJ	SOCIAL MEDIA REPORT OF TREES DOWN ON GREEN POND RD.
Jul 22, 3:50 PM EDT	HAIL 1.5	Pequannock, NJ	MINOR DAMAGE TO DECK AND PLANTS SHREDDED.
Jul 22, 3:50 PM EDT	HAIL 1.5	Pequannock, NJ	TIME ESTIMATED FROM RADAR.
Jul 22, 3:55 PM EDT	HAIL 1	Pompton Plains, NJ	SOCIAL MEDIA VIDEO OF HAIL WHICH APPEARED UP TO QUARTER SIZE. TIME ESTIMATED FROM RADAR.

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.

Issued	Product	Office	Lasted
Jul 22, 2:17 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.2 hours before the alert went out and 130 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1598 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

342 
WUUS51 KPHI 221912
SVRPHI
NJC027-037-222000-
/O.NEW.KPHI.SV.W.0261.190722T1912Z-190722T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
312 PM EDT Mon Jul 22 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northeastern Morris County in northern New Jersey...
  South central Sussex County in northwestern New Jersey...

* Until 400 PM EDT.

* At 312 PM EDT, a severe thunderstorm was located over Mount
  Arlington, or 10 miles southeast of Newton, moving east at 25 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Dover, Hopatcong, East Hanover, Lincoln Park, Kinnelon, Boonton,
  Butler, Wharton, Rockaway, Morris Plains, Mount Arlington, Mountain
  Lakes, Stanhope, Riverdale, Netcong, Victory Gardens, Andover, Lake
  Mohawk, Green Pond and Succasunna.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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 4090 7427 4091 7433 4088 7434 4086 7432
      4081 7434 4086 7473 4099 7474 4108 7449
      4104 7450 4105 7445 4102 7443 4103 7442
      4100 7430 4097 7428 4092 7429
TIME...MOT...LOC 1912Z 258DEG 22KT 4091 7467 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

CMS

3 follow-up statements

158 
WWUS51 KPHI 221932
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
332 PM EDT Mon Jul 22 2019

NJC037-221941-
/O.CAN.KPHI.SV.W.0261.000000T0000Z-190722T2000Z/
Sussex NJ-
332 PM EDT Mon Jul 22 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL SUSSEX COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 1000 PM EDT for
northern and northwestern New Jersey.

LAT...LON 4090 7427 4091 7433 4088 7434 4086 7432
      4089 7458 4100 7460 4107 7453 4108 7449
      4104 7450 4105 7445 4102 7443 4103 7442
      4100 7430 4097 7428 4092 7429
TIME...MOT...LOC 1931Z 258DEG 22KT 4093 7452 

$$

NJC027-222000-
/O.CON.KPHI.SV.W.0261.000000T0000Z-190722T2000Z/
Morris NJ-
332 PM EDT Mon Jul 22 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTHEASTERN MORRIS COUNTY...

At 331 PM EDT, a severe thunderstorm was located over Lake Telemark,
or 10 miles north of Morristown, moving east at 25 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Law enforcement. This storm has downed trees and pwer lines 
         in Roxbury Township.

IMPACT...Minor damage to vehicles is possible. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Dover, Lincoln Park, Kinnelon, Boonton, Butler, Wharton, Rockaway,
Mountain Lakes, Riverdale, Pequannock Township, Lake Telemark, Green
Pond and White Meadow Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

Continuous 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 4090 7427 4091 7433 4088 7434 4086 7432
      4089 7458 4100 7460 4107 7453 4108 7449
      4104 7450 4105 7445 4102 7443 4103 7442
      4100 7430 4097 7428 4092 7429
TIME...MOT...LOC 1931Z 258DEG 22KT 4093 7452 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

CMS

071 
WWUS51 KPHI 221941
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
341 PM EDT Mon Jul 22 2019

NJC027-222000-
/O.CON.KPHI.SV.W.0261.000000T0000Z-190722T2000Z/
Morris NJ-
341 PM EDT Mon Jul 22 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTHEASTERN MORRIS COUNTY...

At 340 PM EDT, a severe thunderstorm was located over Lake Telemark,
or 9 miles southwest of Pompton Lakes, moving east at 25 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...The public reported trees down on Green Pond Road in the 
         Lake Telemark area as this storm passed.

IMPACT...Minor damage to vehicles is possible. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Lincoln Park, Kinnelon, Boonton, Butler, Riverdale, Lake Telemark,
Green Pond, Pequannock Township and White Meadow Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

Continuous 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 4090 7427 4091 7433 4092 7449 4107 7453
      4108 7449 4104 7450 4105 7445 4102 7443
      4103 7442 4100 7430 4097 7428 4092 7429
TIME...MOT...LOC 1940Z 258DEG 22KT 4094 7445 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

CMS

021 
WWUS51 KPHI 222000
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
400 PM EDT Mon Jul 22 2019

NJC027-222009-
/O.EXP.KPHI.SV.W.0261.000000T0000Z-190722T2000Z/
Morris NJ-
400 PM EDT Mon Jul 22 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MORRIS COUNTY
WILL EXPIRE AT 400 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A severe thunderstorm watch remains in effect until 1000 PM EDT for
northern and northwestern 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 4090 7427 4091 7433 4092 7449 4107 7453
      4108 7449 4104 7450 4105 7445 4102 7443
      4103 7442 4100 7430 4097 7428 4092 7429
TIME...MOT...LOC 1959Z 258DEG 22KT 4096 7430 

$$

CMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 8:25 PM EDT	Special Weather Statement	PHI	Warren	50 min
Jul 21, 8:44 PM EDT	Severe Thunderstorm Warning	PHI	Warren	46 min
Jul 21, 9:05 PM EDT	Special Weather Statement	PHI	Morris	25 min
Jul 21, 9:24 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	51 min
Jul 21, 10:12 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Monmouth, Morris, Somerset	48 min
Jul 21, 10:13 PM EDT	Severe Thunderstorm Warning	PHI	Salem	47 min
Jul 21, 10:15 PM EDT	Special Marine Warning	PHI		60 min
Jul 21, 10:54 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	25 min
Jul 21, 10:58 PM EDT	Special Marine Warning	PHI		62 min
Jul 21, 11:02 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	31 min
Jul 21, 11:27 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	48 min
Jul 21, 11:31 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	44 min
Jul 21, 11:40 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	50 min
Jul 21, 11:54 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	51 min
Jul 22, 12:00 AM EDT	Special Marine Warning	PHI		90 min
Jul 22, 12:16 AM EDT	Special Weather Statement	PHI	Mercer	29 min
Jul 22, 12:34 AM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	41 min
Jul 22, 1:50 PM EDT	Special Weather Statement	PHI	Warren	25 min
Jul 22, 2:00 PM EDT	Special Weather Statement	PHI	Sussex	45 min
Jul 22, 2:13 PM EDT	Special Weather Statement	PHI	Warren	32 min
Jul 22, 2:35 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	40 min
Jul 22, 2:58 PM EDT	Small Craft Advisory	PHI		27 hr
Jul 22, 3:02 PM EDT	Areal Flood Advisory	PHI	Morris, Sussex, Warren	4 hr
Jul 22, 3:33 PM EDT	Areal Flood Advisory	PHI	Warren	7 hr
Jul 22, 3:43 PM EDT	Flash Flood Warning	PHI	Sussex	4 hr
Jul 22, 4:11 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Warren	4 hr
Jul 22, 4:16 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	59 min
Jul 22, 4:24 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	51 min
Jul 22, 4:40 PM EDT	Areal Flood Advisory	PHI	Camden, Cumberland, Gloucester, Salem	114 min
Jul 22, 4:52 PM EDT	Special Marine Warning	PHI		53 min
Jul 22, 5:01 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	44 min
Jul 22, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	41 min
Jul 22, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	61 min
Jul 22, 5:17 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	73 min
Jul 22, 5:34 PM EDT	Flash Flood Warning	PHI	Hunterdon, Morris, Sussex, Warren	4 hr
Jul 22, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more	80 min
Jul 22, 5:43 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Hunterdon, Mercer, Middlesex and 4 more	3 hr
Jul 22, 5:50 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more	40 min
Jul 22, 5:52 PM EDT	Special Marine Warning	PHI		53 min
Jul 22, 6:09 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Ocean	51 min
Jul 22, 6:12 PM EDT	Special Marine Warning	PHI		93 min
Jul 22, 6:21 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Cumberland, Monmouth, Ocean	4 hr
Jul 22, 6:27 PM EDT	Special Marine Warning	PHI		48 min
Jul 22, 6:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Monmouth, Morris, Somerset	34 min
Jul 22, 6:35 PM EDT	Flash Flood Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	4 hr
Jul 22, 6:38 PM EDT	Special Marine Warning	PHI		67 min
Jul 22, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean	51 min
Jul 22, 7:39 PM EDT	Special Marine Warning	PHI		96 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019 Every 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.