Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 10, NWS Philadelphia/Mount Holly

February 7, 2020Middlesex County, Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Feb 7, 2020, 11:01 AM EST for Middlesex County, Monmouth County, Ocean County, New Jersey. It was in force for 44 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: Feb 7, 2020, 11:01 AM EST (16:01 UTC)
Expired: Feb 7, 2020, 11:45 AM EST
In force: 44 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 16:03 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
Feb 7, 11:10 AM EST	TSTM WND DMG	2 Wsw Holmdel, NJ	DOWNED TREE AND WIRES ON NJ 34 NORTHBOUND SOUTH OF CR 520. ALL LANES CLOSED. TIME ESTIMATED FROM RADAR.
Feb 7, 11:26 AM EST	TSTM WND DMG	Spring Lake Heights, NJ	DOWNED TREES AND POWER LINES FROM STRONG WINDS. TIME ESTIMATED FROM RADAR.
Feb 7, 11:30 AM EST	TSTM WND GST 67	Mantoloking, NJ	HADS SENSOR.
Feb 7, 11:36 AM EST	TSTM WND GST 66	Sandy Hook, NJ

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 4.0 hours before the alert went out and 123 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: 469 m above ground
0-6 km bulk shear: 105 kt
0-1 km storm-relative helicity: 650 m²/s²
0-3 km storm-relative helicity: 811 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

985 
WUUS51 KPHI 071601
SVRPHI
NJC023-025-029-071645-
/O.NEW.KPHI.SV.W.0010.200207T1601Z-200207T1645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1101 AM EST Fri Feb 7 2020

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northeastern Ocean County in southern New Jersey...
  Monmouth County in central New Jersey...
  Middlesex County in northern New Jersey...

* Until 1145 AM EST.

* At 1100 AM EST, severe thunderstorms were located along a line
  extending from near Jamesburg to Holiday City-Berkeley, moving
  northeast at 65 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Toms River, New Brunswick, Perth Amboy, Long Branch, Asbury Park,
  Sandy Hook, Somerset, Edison, Lakewood, Middletown, Old Bridge,
  Jackson, Howell, East Brunswick, Sayreville, Marlboro, Carteret,
  Tinton Falls, Holmdel and Red Bank.

This includes the following highways...
 Garden State Parkway between mile markers 81 and 134.
 Interstate 195 in New Jersey between mile markers 22 and 34.
 Interstate 287 in New Jersey between mile markers 0 and 9.
 New Jersey Turnpike between exits 10 and 13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.

&&

LAT...LON 4019 7397 3988 7407 3995 7425 4048 7448
      4050 7446 4055 7451 4060 7443 4060 7421
      4056 7421 4055 7425 4050 7428 4047 7427
      4044 7420 4046 7418 4045 7413 4041 7398
      4048 7402 4048 7401 4043 7397
TIME...MOT...LOC 1600Z 234DEG 56KT 4038 7445 3998 7429 

HAIL...<.75IN
WIND...70MPH
 
$$

Staarmann

1 follow-up statement

716 
WWUS51 KPHI 071637
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1137 AM EST Fri Feb 7 2020

NJC023-025-029-071645-
/O.EXP.KPHI.SV.W.0010.000000T0000Z-200207T1645Z/
Ocean NJ-Monmouth NJ-Middlesex NJ-
1137 AM EST Fri Feb 7 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OCEAN...MONMOUTH
AND MIDDLESEX COUNTIES WILL EXPIRE AT 1145 AM EST...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However strong to 
damaging winds are still possible in the wake of these storms. A 
High Wind Warning remains in effect for Ocean and Monmouth Counties 
until 7 PM EST.

LAT...LON 4019 7397 3988 7407 3995 7425 4048 7448
      4050 7446 4055 7451 4060 7443 4060 7421
      4056 7421 4055 7425 4050 7428 4047 7427
      4044 7420 4046 7418 4045 7413 4041 7398
      4048 7402 4048 7401 4043 7397
TIME...MOT...LOC 1635Z 234DEG 56KT 4069 7389 4029 7374 

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 6, 8:13 PM EST	Storm Warning	PHI		21 hr
Feb 6, 8:24 PM EST	High Wind Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean	21 hr
Feb 7, 8:03 AM EST	Coastal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer, Salem	11 hr
Feb 7, 8:18 AM EST	Coastal Flood Statement	PHI	Ocean	11 hr
Feb 7, 9:36 AM EST	Severe Thunderstorm Warning	PHI	Gloucester, Salem	39 min
Feb 7, 9:39 AM EST	Tornado Warning	PHI	Gloucester, Salem	36 min
Feb 7, 9:43 AM EST	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	62 min
Feb 7, 10:10 AM EST	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	65 min
Feb 7, 10:14 AM EST	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 3 more	61 min
Feb 7, 10:43 AM EST	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren	47 min
Feb 7, 3:27 PM EST	Gale Warning	PHI		9 hr
Feb 7, 6:53 PM EST	Low Water Advisory	PHI		9 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2020 Every severe thunderstorm warning in 2020

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.