Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 364, NWS Philadelphia/Mount Holly

August 19, 2019Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 19, 2019, 3:58 PM EDT for Middlesex County, Monmouth County, New Jersey. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 19, 2019, 3:58 PM EDT (19:58 UTC)
Expired: Aug 19, 2019, 4:45 PM EDT
In force: 47 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Middlesex County, NJ, Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 32 km from the middle of the area, began a volume at 19:59 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.0 hours before the alert went out and 144 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: 1215 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

749 
WUUS51 KPHI 191958
SVRPHI
NJC023-025-192045-
/O.NEW.KPHI.SV.W.0364.190819T1958Z-190819T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
358 PM EDT Mon Aug 19 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Monmouth County in central New Jersey...
  South central Middlesex County in northern New Jersey...

* Until 445 PM EDT.

* At 358 PM EDT, a severe thunderstorm was located over West
  Freehold, or 16 miles south of New Brunswick, moving east at 10
  mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Howell, Marlboro, Manalapan, Holmdel, Farmingdale, Roosevelt,
  Adelphia, Yorketown, East Freehold, Lincroft, Freewood Acres, West
  Freehold, Clarksburg, Morganville, Freehold and Englishtown.

This includes the following highways...
 Garden State Parkway near mile marker 112.
 Interstate 195 in New Jersey between mile markers 27 and 30.

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 4015 7417 4020 7452 4023 7450 4024 7448
      4029 7448 4037 7411
TIME...MOT...LOC 1958Z 275DEG 9KT 4026 7432 

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

Staarmann

1 follow-up statement

789 
WWUS51 KPHI 192033
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
433 PM EDT Mon Aug 19 2019

NJC023-192042-
/O.CAN.KPHI.SV.W.0364.000000T0000Z-190819T2045Z/
Middlesex NJ-
433 PM EDT Mon Aug 19 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MIDDLESEX 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 4019 7448 4028 7432 4035 7411 4015 7417
TIME...MOT...LOC 2032Z 273DEG 10KT 4020 7426 

$$

NJC025-192045-
/O.CON.KPHI.SV.W.0364.000000T0000Z-190819T2045Z/
Monmouth NJ-
433 PM EDT Mon Aug 19 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR CENTRAL MONMOUTH COUNTY...

At 432 PM EDT, a severe thunderstorm was located over Adelphia, or 13
miles west of Asbury Park, moving east at 10 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Howell, Farmingdale, Adelphia, Clarksburg, Lincroft, Freewood Acres,
East Freehold, West Freehold, Vista Center and Freehold.

This includes Interstate 195 in New Jersey between mile markers 27
and 30.
 
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 4019 7448 4028 7432 4035 7411 4015 7417
TIME...MOT...LOC 2032Z 273DEG 10KT 4020 7426 

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

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 1:00 PM EDT	Special Marine Warning	PHI		2 hr
Aug 19, 1:28 PM EDT	Special Weather Statement	PHI	Ocean	47 min
Aug 19, 1:40 PM EDT	Special Marine Warning	PHI		95 min
Aug 19, 1:46 PM EDT	Special Weather Statement	PHI	Cape May	44 min
Aug 19, 1:53 PM EDT	Special Marine Warning	PHI		97 min
Aug 19, 2:48 PM EDT	Areal Flood Advisory	PHI	Ocean	117 min
Aug 19, 2:54 PM EDT	Special Weather Statement	PHI	Sussex	51 min
Aug 19, 3:04 PM EDT	Special Weather Statement	PHI	Ocean	41 min
Aug 19, 3:52 PM EDT	Special Marine Warning	PHI		53 min
Aug 19, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	37 min
Aug 19, 4:03 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	42 min
Aug 19, 4:05 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	40 min
Aug 19, 4:21 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	39 min
Aug 19, 4:28 PM EDT	Special Marine Warning	PHI		97 min
Aug 19, 4:30 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	45 min
Aug 19, 4:45 PM EDT	Special Marine Warning	PHI		60 min
Aug 19, 4:48 PM EDT	Areal Flood Advisory	PHI	Ocean	3 hr
Aug 19, 4:52 PM EDT	Special Weather Statement	PHI	Atlantic	23 min
Aug 19, 4:54 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	40 min
Aug 19, 5:03 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	57 min
Aug 19, 5:11 PM EDT	Special Marine Warning	PHI		2 hr
Aug 19, 5:29 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Ocean	4 hr
Aug 19, 5:35 PM EDT	Areal Flood Advisory	PHI	Ocean	115 min
Aug 19, 5:40 PM EDT	Special Marine Warning	PHI		86 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.