Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 146, NWS Philadelphia/Mount Holly

July 8, 2021Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 8, 2021, 4:02 PM EDT for Monmouth County, New Jersey. It was in force for 31 min. 4 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 8, 2021, 4:02 PM EDT (20:02 UTC)
Expired: Jul 8, 2021, 4:33 PM EDT
In force: 31 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 20:04 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
Jul 8, 4:08 PM EDT	TSTM WND DMG	2 Nw Wanamassa, NJ	A TREE WAS DOWNED ON NJ-18 NORTHBOUND RAMP TO EXIT 11. TIME ESTIMATED FROM RADAR.
Jul 8, 4:10 PM EDT	HAIL 0.5	2 Ssw Red Bank, NJ	MPING.
Jul 8, 4:11 PM EDT	TSTM WND DMG	Middletown Twp, NJ	MULTIPLE TREES DOWN NEAR MIDDLETOWN TOWNSHIP. TIME ESTIMATED FROM RADAR.
Jul 8, 4:13 PM EDT	TSTM WND DMG	Red Bank, NJ	TREE LIMBS AND WIRES WERE DOWNED IN RED BANK. 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 8, 2:09 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.0 hours before the alert went out and 115 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.

867 
WUUS51 KPHI 082002
SVRPHI
NJC025-082045-
/O.NEW.KPHI.SV.W.0146.210708T2002Z-210708T2045Z/

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

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northeastern Monmouth County in central New Jersey...

* Until 445 PM EDT.

* At 401 PM EDT, a severe thunderstorm was located over Tinton Falls,
  or near Long Branch, moving northeast at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Long Branch, Asbury Park, Sandy Hook, Middletown, Tinton Falls,
  Holmdel, Red Bank, Highlands, Elberon, Navesink, Collingwood Park,
  Lincroft, Eatontown, West Long Branch, Rumson, Little Silver,
  Oceanport, Shrewsbury, Interlaken and Deal.

This includes Garden State Parkway between mile markers 100 and 114.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4024 7397 4018 7413 4033 7425 4043 7407
      4042 7405 4041 7398 4047 7401 4043 7397
TIME...MOT...LOC 2001Z 237DEG 24KT 4030 7411 

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

NC

1 follow-up statement

740 
WWUS51 KPHI 082033
SVSPHI

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

NJC025-082042-
/O.CAN.KPHI.SV.W.0146.000000T0000Z-210708T2045Z/
Monmouth NJ-
433 PM EDT Thu Jul 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH COUNTY
IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central 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 4024 7397 4018 7413 4033 7425 4043 7407
      4042 7405 4041 7398 4047 7401 4043 7397
TIME...MOT...LOC 2030Z 237DEG 24KT 4041 7388 

$$

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, 2:26 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	21 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, 4:43 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.