Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 143, NWS Philadelphia/Mount Holly

July 8, 2021Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 8, 2021, 2:26 PM EDT for Monmouth County, Ocean County, New Jersey. It was in force for 21 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: Jul 8, 2021, 2:26 PM EDT (18:26 UTC)
Expired: Jul 8, 2021, 2:47 PM EDT
In force: 21 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 53 km from the middle of the area, began a volume at 18:29 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 8, 2:09 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.4 hours before the alert went out and 116 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: 973 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 751 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted.

360 
WUUS51 KPHI 081826
SVRPHI
NJC025-029-081915-
/O.NEW.KPHI.SV.W.0143.210708T1826Z-210708T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
226 PM EDT Thu Jul 8 2021

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern Ocean County in southern New Jersey...
  Southeastern Monmouth County in central New Jersey...

* Until 315 PM EDT.

* At 226 PM EDT, a severe thunderstorm was located over Asbury Park,
  moving northeast at 20 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...
  Long Branch, Asbury Park, Lakewood, Howell, Tinton Falls, Red Bank,
  Manasquan, Highlands, Farmingdale, Allenwood, Adelphia, Elberon,
  Ramtown, Collingwood Park, Lincroft, West Freehold, Eatontown, West
  Long Branch, Rumson and Little Silver.

This includes the following highways...
 Interstate 195 in New Jersey between mile markers 28 and 34.
 Garden State Parkway between mile markers 92 and 110.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4043 7396 4016 7396 4008 7417 4023 7427
      4041 7399 4041 7398 4042 7398
TIME...MOT...LOC 1826Z 232DEG 13KT 4023 7404 

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

NC

2 follow-up statements

759 
WWUS51 KPHI 081845
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
245 PM EDT Thu Jul 8 2021

NJC029-081854-
/O.CAN.KPHI.SV.W.0143.000000T0000Z-210708T1915Z/
Ocean NJ-
245 PM EDT Thu Jul 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN OCEAN 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 900 PM EDT for
central New Jersey.

LAT...LON 4041 7398 4037 7406 4028 7420 4016 7404
      4018 7406 4032 7411 4038 7403
TIME...MOT...LOC 1844Z 232DEG 13KT 4027 7397 

$$

NJC025-081915-
/O.CON.KPHI.SV.W.0143.000000T0000Z-210708T1915Z/
Monmouth NJ-
245 PM EDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR EAST CENTRAL MONMOUTH COUNTY...

At 244 PM EDT, a severe thunderstorm was located over Elberon, or
over Long Branch, moving northeast at 15 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...
Tinton Falls, Red Bank, Highlands and Lincroft. 

This includes Garden State Parkway between mile markers 101 and 103,
and near mile marker 110.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4041 7398 4037 7406 4028 7420 4016 7404
      4018 7406 4032 7411 4038 7403
TIME...MOT...LOC 1844Z 232DEG 13KT 4027 7397 

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

NC

597 
WWUS51 KPHI 081847
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
247 PM EDT Thu Jul 8 2021

NJC025-081857-
/O.CAN.KPHI.SV.W.0143.000000T0000Z-210708T1915Z/
Monmouth NJ-
247 PM EDT Thu Jul 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MONMOUTH COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central New Jersey.

LAT...LON 4041 7398 4037 7406 4028 7420 4016 7404
      4018 7406 4032 7411 4038 7403
TIME...MOT...LOC 1846Z 232DEG 13KT 4028 7396 

$$

NC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 11:06 PM EDT	Tropical Storm Warning	PHI	Atlantic, Burlington, Cape May, Monmouth, Ocean	32 hr
Jul 7, 11:37 PM EDT	Special Weather Statement	PHI	Sussex	38 min
Jul 8, 5:27 AM EDT	Small Craft Advisory	PHI		34 hr
Jul 8, 1:49 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	41 min
Jul 8, 2:09 PM EDT	Special Marine Warning	PHI		81 min
Jul 8, 2:29 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	46 min
Jul 8, 2:43 PM EDT	Rip Current Statement	PHI	Atlantic, Cape May, Monmouth, Ocean	27 hr
Jul 8, 3:03 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	42 min
Jul 8, 4:02 PM EDT	Special Marine Warning	PHI		33 min
Jul 8, 4:02 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	31 min
Jul 8, 4:43 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Somerset	16 min
Jul 8, 5:29 PM EDT	Special Weather Statement	PHI	Morris, Warren	46 min
Jul 8, 5:34 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	41 min
Jul 8, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	39 min
Jul 8, 6:09 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex	51 min
Jul 8, 6:16 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	44 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2021 Every severe thunderstorm warning in 2021

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.