Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 24, NWS Philadelphia/Mount Holly

April 9, 20204 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 9, 2020, 2:08 PM EDT for 4 counties in New Jersey. It was in force for 30 min. 12 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: Apr 9, 2020, 2:08 PM EDT (18:08 UTC)
Expired: Apr 9, 2020, 2:38 PM EDT
In force: 30 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Atlantic County, NJ, Burlington County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 22 km from the middle of the area, began a volume at 18:11 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
Apr 9, 2:10 PM EDT	TSTM WND GST 64	Ocean County Airport (K, NJ
Apr 9, 2:11 PM EDT	MARINE TSTM WIND 51	2 Sw Beach Haven, NJ	CWOP REPORT.
Apr 9, 2:12 PM EDT	TSTM WND DMG	1 Wsw Asbury Park, NJ	LARGE TREE DOWN INTO A HOME ON HECK AVE IN NEPTUNE. HECK AVE IS CLOSED BETWEEN FISHER AND MYRTLE. TIME ESTIMATED FROM RADAR.
Apr 9, 2:14 PM EDT	HAIL 0.25	Spring Lake Heights, NJ
Apr 9, 2:14 PM EDT	HAIL 0.25	Spring Lake Heights, NJ
Apr 9, 2:15 PM EDT	TSTM WND DMG	1 Wsw Asbury Park, NJ	PHOTO SHOWS A LARGE TREE FALLEN ONTO A RESIDENCE. NO INJURIES REPORTED. TIME ESTIMATED FROM RADAR.
Apr 9, 2:15 PM EDT	TSTM WND GST 56	1 E Point Pleasant, NJ	NJWXNET MEASURED GUST.
Apr 9, 2:15 PM EDT	MARINE TSTM WIND 56	1 E Point Pleasant, NJ	NJWXNET MEASURED GUST.
Apr 9, 2:24 PM EDT	HAIL 0.25	Waretown, NJ
Apr 9, 2:29 PM EDT	TSTM WND GST 62	4 Ese Lanoka Harbor, NJ
Apr 9, 2:29 PM EDT	MARINE TSTM WIND 62	4 Ese Lanoka Harbor, NJ
Apr 9, 2:39 PM EDT	TSTM WND GST 61	Harvey Cedars, NJ	NJWXNET MEASURED GUST.

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
Apr 9, 12:01 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.1 hours before the alert went out and 168 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: 942 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 361 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

825 
WUUS51 KPHI 091808
SVRPHI
NJC001-005-025-029-091900-
/O.NEW.KPHI.SV.W.0024.200409T1808Z-200409T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
208 PM EDT Thu Apr 9 2020

The National Weather Service in Mount Holly NJ has issued a

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

* Until 300 PM EDT.

* At 208 PM EDT, severe thunderstorms were located along a line
  extending from near Jacksons Mills to near Old Halfway to near
  Hammonton, moving east at 65 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...
  Toms River, Asbury Park, Lakewood, Jackson, Howell, Barnegat,
  Tinton Falls, Hammonton, Beachwood, Manasquan, Point Pleasant
  Beach, Egg Harbor City, Tuckerton, Seaside Heights, Lakehurst,
  Farmingdale, Surf City, Port Republic, Mantoloking and Allenwood.

People attending Covid-19 Drive through testing should seek safe
shelter immediately!

This includes the following highways...
 Atlantic City Expressway between mile markers 23 and 27.
 Garden State Parkway between mile markers 48 and 102.
 Interstate 195 in New Jersey between mile markers 17 and 34.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.

&&

LAT...LON 3955 7399 3950 7403 3957 7486 3989 7455
      4021 7441 4024 7397
TIME...MOT...LOC 1808Z 267DEG 57KT 4014 7437 3990 7449 3964 7474 

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

MPS

2 follow-up statements

082 
WWUS51 KPHI 091826
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
226 PM EDT Thu Apr 9 2020

NJC001-091835-
/O.CAN.KPHI.SV.W.0024.000000T0000Z-200409T1900Z/
Atlantic NJ-
226 PM EDT Thu Apr 9 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ATLANTIC COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 400 PM EDT for
southern and central New Jersey.

LAT...LON 3955 7399 3952 7401 3950 7405 3953 7437
      3953 7441 3955 7442 3954 7444 3956 7445
      3955 7446 3955 7449 3956 7450 3982 7425
      4019 7403 4019 7397 3971 7398
TIME...MOT...LOC 1825Z 271DEG 46KT 4013 7400 3982 7418 3956 7443 

$$

NJC005-025-029-091900-
/O.CON.KPHI.SV.W.0024.000000T0000Z-200409T1900Z/
Ocean NJ-Burlington NJ-Monmouth NJ-
226 PM EDT Thu Apr 9 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR CENTRAL OCEAN...SOUTHEASTERN BURLINGTON AND SOUTHEASTERN MONMOUTH
COUNTIES...

At 225 PM EDT, severe thunderstorms were located along a line
extending from near Manasquan to near Barnegat to near New Gretna,
moving east at 55 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...
Toms River, Barnegat, Manasquan, Point Pleasant Beach, Tuckerton,
Seaside Heights, Surf City, Port Republic, Mantoloking, Dover Beaches
North, Dover Beaches South, Bass River State Forest, New Gretna,
Beach Haven West, Brick Township, Mystic Island, Point Pleasant,
Brielle, Spring Lake Heights and Spring Lake.

This includes Garden State Parkway between mile markers 49 and 76.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

&&

LAT...LON 3955 7399 3952 7401 3950 7405 3953 7437
      3953 7441 3955 7442 3954 7444 3956 7445
      3955 7446 3955 7449 3956 7450 3982 7425
      4019 7403 4019 7397 3971 7398
TIME...MOT...LOC 1825Z 271DEG 46KT 4013 7400 3982 7418 3956 7443 

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

MPS

297 
WWUS51 KPHI 091838
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
238 PM EDT Thu Apr 9 2020

NJC005-025-029-091848-
/O.CAN.KPHI.SV.W.0024.000000T0000Z-200409T1900Z/
Ocean NJ-Burlington NJ-Monmouth NJ-
238 PM EDT Thu Apr 9 2020

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL OCEAN...SOUTHEASTERN
BURLINGTON AND SOUTHEASTERN MONMOUTH COUNTIES IS CANCELLED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.  However, gusty winds are 
still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 400 PM EDT for
southern and 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 3955 7399 3952 7401 3950 7405 3953 7437
      3953 7441 3955 7442 3954 7444 3956 7445
      3955 7446 3955 7449 3956 7450 3982 7425
      4019 7403 4019 7397 3971 7398
TIME...MOT...LOC 1837Z 267DEG 57KT 4014 7378 3983 7396 3957 7421 

$$

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 9:57 AM EDT	Special Marine Warning	PHI		63 min
Apr 9, 10:56 AM EDT	Special Marine Warning	PHI		29 min
Apr 9, 12:05 PM EDT	Special Weather Statement	PHI	Warren	40 min
Apr 9, 12:52 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	23 min
Apr 9, 1:00 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Warren	45 min
Apr 9, 1:12 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	48 min
Apr 9, 1:14 PM EDT	Special Weather Statement	PHI	Morris	31 min
Apr 9, 1:18 PM EDT	Special Weather Statement	PHI	Cumberland	27 min
Apr 9, 1:23 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset	52 min
Apr 9, 1:30 PM EDT	Special Marine Warning	PHI		60 min
Apr 9, 1:33 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Mercer, Monmouth and 2 more	42 min
Apr 9, 1:44 PM EDT	Special Marine Warning	PHI		61 min
Apr 9, 2:13 PM EDT	Special Marine Warning	PHI		33 min
Apr 9, 3:13 PM EDT	Coastal Flood Statement	PHI	Ocean	4 hr
Apr 9, 3:32 PM EDT	Wind Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	27 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.