Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 367, NWS Philadelphia/Mount Holly

August 19, 2019Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 19, 2019, 4:21 PM EDT for Monmouth County, New Jersey. It was in force for 39 min. 3 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: Aug 19, 2019, 4:21 PM EDT (20:21 UTC)
Expired: Aug 19, 2019, 5:00 PM EDT
In force: 39 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 51 km from the middle of the area, began a volume at 20:24 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
Aug 19, 4:24 PM EDT	TSTM WND DMG	1 Ssw Little Silver, NJ	DOWNED TREES AND WIRES NEAR OLD FARM ROAD AND SYCAMORE AVENUE. TIME ESTIMATED FROM RADAR.
Aug 19, 4:30 PM EDT	HAIL 0.7	Red Bank, NJ	HAIL NEAR DIME SIZE IN RED BANK.
Aug 19, 4:37 PM EDT	TSTM WND DMG	Wanamassa, NJ	TREE DOWN IN WIRES WITH POWER OUTAGES NEAR GRASSMERE AVENUE AND CHESTNUT AVENUE. TIME ESTIMATED FROM RADAR.

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, 8.4 hours before the alert went out and 117 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.

516 
WUUS51 KPHI 192021
SVRPHI
NJC025-192100-
/O.NEW.KPHI.SV.W.0367.190819T2021Z-190819T2100Z/

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

The National Weather Service in Mount Holly NJ has issued a

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

* Until 500 PM EDT.

* At 420 PM EDT, a severe thunderstorm was located over Red Bank, or
  near Long Branch, moving east 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, Sandy Hook, Middletown, Tinton Falls, Red
  Bank, Manasquan, Highlands, Point Pleasant Beach, Farmingdale,
  Allenwood, Elberon, Ramtown, Navesink, Collingwood Park, Lincroft,
  Eatontown, West Long Branch, Rumson and Little Silver.

This includes the following highways...
 Garden State Parkway between mile markers 95 and 115.
 Interstate 195 in New Jersey between mile markers 31 and 34.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm, and
the storm will affect the beaches. For your safety, immediately move
off the beach and seek shelter indoors.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4010 7403 4010 7408 4014 7411 4011 7414
      4011 7419 4026 7415 4038 7418 4044 7409
      4041 7402 4044 7399 4048 7402 4048 7401
      4044 7398 4042 7400 4042 7398 4039 7398
      4038 7401 4038 7397 4036 7397
TIME...MOT...LOC 2020Z 250DEG 16KT 4035 7407 

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

Staarmann

1 follow-up statement

485 
WWUS51 KPHI 192049
SVSPHI

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

NJC025-192100-
/O.CON.KPHI.SV.W.0367.000000T0000Z-190819T2100Z/
Monmouth NJ-
449 PM EDT Mon Aug 19 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SOUTHEASTERN MONMOUTH COUNTY...

At 449 PM EDT, a severe thunderstorm was located over Freewood Acres,
or 11 miles west of Asbury Park, moving east at 25 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, Tinton Falls, Manasquan, Point Pleasant
Beach, Farmingdale, Allenwood, Elberon, Ramtown, Collingwood Park,
Eatontown, West Long Branch, Little Silver, Oceanport, Neptune City,
Brielle, Spring Lake Heights, Bradley Beach, Shrewsbury and Spring
Lake.

This includes the following highways...
 Garden State Parkway between mile markers 95 and 108.
 Interstate 195 in New Jersey between mile markers 31 and 34.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm, and
the storm will affect the beaches. For your safety, immediately move
off the beach and seek shelter indoors.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4030 7416 4034 7397 4010 7403 4010 7408
      4014 7411 4011 7414 4011 7419 4026 7415
TIME...MOT...LOC 2049Z 263DEG 21KT 4017 7422 

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, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth	47 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, 4:28 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.