Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 180, NWS Philadelphia/Mount Holly

June 29, 2019Middlesex County, Morris County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 29, 2019, 5:03 PM EDT for Middlesex County, Morris County, Somerset County, New Jersey. It was in force for 27 min. 7 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: Jun 29, 2019, 5:03 PM EDT (21:03 UTC)
Expired: Jun 29, 2019, 5:30 PM EDT
In force: 27 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Middlesex County, NJ, Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 72 km from the middle of the area, began a volume at 21:04 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
Jun 29, 5:07 PM EDT	TSTM WND DMG	1 W North Plainfield, NJ	PHOTOS OF MULTIPLE TREES DOWN. TIME ESTIMATED FROM RADAR.
Jun 29, 5:10 PM EDT	HAIL 0.25	2 Nnw Highland Park, NJ
Jun 29, 5:11 PM EDT	TSTM WND DMG	Edison, NJ	TREES SPLIT. TIME ESTIMATED FROM RADAR.
Jun 29, 5:13 PM EDT	TSTM WND DMG	Metuchen, NJ	REPORT OF A LARGE TREE DOWN BLOCKING BOTH DIRECTION OF MIDDLESEX AVENUE IN METUCHEN. TIME ESTIMATED FROM RADAR.
Jun 29, 5:15 PM EDT	TSTM WND DMG	1 Ne Iselin, NJ	DOWNED TREE ON STATE HIGHWAY 27 NEAR NEW DOVER ROAD. TIME ESTIMATED FROM RADAR.
Jun 29, 5:19 PM EDT	HAIL 0.75	1 Se Metuchen, NJ
Jun 29, 5:21 PM EDT	TSTM WND GST 68	Port Reading, NJ

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
Jun 29, 12:08 PM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.1 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: 1180 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1077 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted.

277 
WUUS51 KPHI 292103
SVRPHI
NJC023-027-035-292130-
/O.NEW.KPHI.SV.W.0180.190629T2103Z-190629T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
503 PM EDT Sat Jun 29 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  South central Morris County in northern New Jersey...
  Southeastern Somerset County in northern New Jersey...
  Northeastern Middlesex County in northern New Jersey...

* Until 530 PM EDT.

* At 502 PM EDT, a severe thunderstorm was located over Society Hill,
  or near New Brunswick, moving east at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  New Brunswick, Perth Amboy, Somerset, Edison, East Brunswick,
  Carteret, Middlesex, Bound Brook, Colonia, Martinsville, Society
  Hill, North Brunswick Township, Woodbridge, South Plainfield, North
  Plainfield, Highland Park, Metuchen, Dunellen, Watchung and South
  Bound Brook.

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 4056 7421 4055 7425 4050 7426 4050 7428
      4049 7428 4045 7452 4062 7458 4071 7447
      4072 7440 4067 7446 4066 7445 4066 7440
      4063 7442 4060 7446 4060 7421
TIME...MOT...LOC 2102Z 254DEG 22KT 4054 7446 

HAIL...1.00IN
WIND...60MPH
 
$$

PF

2 follow-up statements

288 
WWUS51 KPHI 292118
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
518 PM EDT Sat Jun 29 2019

NJC027-035-292127-
/O.CAN.KPHI.SV.W.0180.000000T0000Z-190629T2130Z/
Morris NJ-Somerset NJ-
518 PM EDT Sat Jun 29 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MORRIS AND
SOUTHEASTERN SOMERSET COUNTIES 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 700 PM EDT for
northern New Jersey.

LAT...LON 4055 7425 4050 7426 4050 7428 4048 7430
      4047 7440 4060 7443 4060 7430 4059 7428
      4060 7426 4060 7421 4056 7421
TIME...MOT...LOC 2117Z 257DEG 23KT 4056 7433 

$$

NJC023-292130-
/O.CON.KPHI.SV.W.0180.000000T0000Z-190629T2130Z/
Middlesex NJ-
518 PM EDT Sat Jun 29 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR NORTHEASTERN MIDDLESEX COUNTY...

At 517 PM EDT, a severe thunderstorm was located over Edison, or near
Perth Amboy, moving east at 25 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
New Brunswick, Perth Amboy, Edison, East Brunswick, Carteret,
Colonia, Woodbridge, South Plainfield, Metuchen, Iselin, Sewaren,
Port Reading, Fords and Avenel.

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 4055 7425 4050 7426 4050 7428 4048 7430
      4047 7440 4060 7443 4060 7430 4059 7428
      4060 7426 4060 7421 4056 7421
TIME...MOT...LOC 2117Z 257DEG 23KT 4056 7433 

HAIL...0.75IN
WIND...60MPH
 
$$

PF

231 
WWUS51 KPHI 292128
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
528 PM EDT Sat Jun 29 2019

NJC023-292136-
/O.EXP.KPHI.SV.W.0180.000000T0000Z-190629T2130Z/
Middlesex NJ-
528 PM EDT Sat Jun 29 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIDDLESEX COUNTY
WILL EXPIRE AT 530 PM EDT...
        
The storm which prompted the warning is moving out of the warned 
area. Therefore, the warning will be allowed to expire. However 
gusty winds are still possible with this thunderstorm as it's moving 
out. 

A severe thunderstorm watch remains in effect until 700 PM EDT for
northern New Jersey.

LAT...LON 4055 7425 4050 7426 4050 7428 4048 7430
      4047 7440 4060 7443 4060 7430 4059 7428
      4060 7426 4060 7421 4056 7421
TIME...MOT...LOC 2126Z 254DEG 22KT 4057 7426 

$$

PF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 8:08 PM EDT	Special Weather Statement	PHI	Burlington	37 min
Jun 29, 1:35 PM EDT	Special Weather Statement	PHI	Camden	25 min
Jun 29, 1:54 PM EDT	Special Weather Statement	PHI	Burlington	36 min
Jun 29, 2:31 PM EDT	Special Weather Statement	PHI	Gloucester	29 min
Jun 29, 3:09 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Gloucester	37 min
Jun 29, 3:10 PM EDT	Special Marine Warning	PHI		50 min
Jun 29, 3:14 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	46 min
Jun 29, 3:17 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	43 min
Jun 29, 3:18 PM EDT	Special Marine Warning	PHI		57 min
Jun 29, 3:19 PM EDT	Special Weather Statement	PHI	Ocean	26 min
Jun 29, 3:24 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	36 min
Jun 29, 3:25 PM EDT	Special Weather Statement	PHI	Burlington	35 min
Jun 29, 3:31 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	44 min
Jun 29, 3:45 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	45 min
Jun 29, 3:55 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	50 min
Jun 29, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	49 min
Jun 29, 3:59 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	46 min
Jun 29, 4:00 PM EDT	Flash Flood Warning	PHI	Gloucester, Salem	3 hr
Jun 29, 4:01 PM EDT	Flash Flood Warning	PHI	Sussex, Warren	3 hr
Jun 29, 4:05 PM EDT	Special Marine Warning	PHI		55 min
Jun 29, 4:06 PM EDT	Special Marine Warning	PHI		54 min
Jun 29, 4:11 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	49 min
Jun 29, 4:15 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Ocean	30 min
Jun 29, 4:16 PM EDT	Special Marine Warning	PHI		18 min
Jun 29, 4:23 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	27 min
Jun 29, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	50 min
Jun 29, 4:26 PM EDT	Special Marine Warning	PHI		49 min
Jun 29, 4:27 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset, Sussex, Warren	48 min
Jun 29, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	47 min
Jun 29, 4:39 PM EDT	Special Marine Warning	PHI		96 min
Jun 29, 4:41 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester	3 hr
Jun 29, 4:44 PM EDT	Areal Flood Advisory	PHI	Burlington, Ocean	3 hr
Jun 29, 4:52 PM EDT	Special Marine Warning	PHI		34 min
Jun 29, 4:53 PM EDT	Severe Thunderstorm Warning	PHI	Morris	22 min
Jun 29, 4:55 PM EDT	Special Weather Statement	PHI	Ocean	35 min
Jun 29, 5:05 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Monmouth, Ocean	40 min
Jun 29, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	67 min
Jun 29, 5:19 PM EDT	Special Marine Warning	PHI		116 min
Jun 29, 5:29 PM EDT	Special Marine Warning	PHI		109 min
Jun 29, 5:32 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	43 min
Jun 29, 5:43 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Monmouth, Ocean	32 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.