Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 389, NWS Philadelphia/Mount Holly

September 4, 2019Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 4, 2019, 8:10 PM EDT for Ocean County, New Jersey. It was in force for 23 min. 1 report 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: Sep 4, 2019, 8:10 PM EDT (00:10 UTC)
Expired: Sep 4, 2019, 8:33 PM EDT
In force: 23 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 24 km from the middle of the area, began a volume at 00:09 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
Sep 4, 8:14 PM EDT	TSTM WND DMG	2 Ssw Bayville, NJ	A FEW TREES DOWN. 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 00:00Z, 0.2 hours before the alert went out and 154 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: 1460 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 925 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 224 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 8.8

Open this sounding in Storm Lab

The text

As transmitted.

892 
WUUS51 KPHI 050010
SVRPHI
NJC029-050045-
/O.NEW.KPHI.SV.W.0389.190905T0010Z-190905T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
810 PM EDT Wed Sep 4 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Ocean County in southern New Jersey...

* Until 845 PM EDT.

* At 809 PM EDT, a severe thunderstorm was located over Beachwood, or
  near Toms River, 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...
  Toms River, Beachwood, Seaside Heights, Holiday City-Berkeley,
  Bamber Lake, Holiday City South, Dover Beaches South, Pine Ridge At
  Crestwood, South Toms River, Island Heights, Silver Ridge, Holiday
  City, Holiday Heights and Gilford Park.

This includes Garden State Parkway between mile markers 73 and 83.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

&&

LAT...LON 3979 7410 3992 7410 3990 7414 3986 7413
      3982 7416 3977 7410 3981 7415 3981 7419
      3988 7435 3999 7429 3997 7411 3994 7415
      3992 7408 3996 7409 3996 7407
TIME...MOT...LOC 0009Z 285DEG 22KT 3990 7423 

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

Staarmann

2 follow-up statements

692 
WWUS51 KPHI 050023
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
823 PM EDT Wed Sep 4 2019

NJC029-050045-
/O.CON.KPHI.SV.W.0389.000000T0000Z-190905T0045Z/
Ocean NJ-
823 PM EDT Wed Sep 4 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR EAST CENTRAL OCEAN COUNTY...

At 823 PM EDT, a severe thunderstorm was located near Seaside
Heights, or near Toms River, moving east at 30 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...
Toms River, Beachwood, Seaside Heights, Dover Beaches South, Holiday
City South, South Toms River, Island Heights and Gilford Park.

This includes Garden State Parkway between mile markers 74 and 81.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3979 7410 3992 7410 3990 7414 3986 7413
      3982 7416 3977 7410 3981 7415 3981 7419
      3987 7428 3995 7421 3997 7411 3994 7415
      3992 7408 3996 7409 3996 7407
TIME...MOT...LOC 0023Z 283DEG 26KT 3988 7409 

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

Staarmann

504 
WWUS51 KPHI 050033
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
833 PM EDT Wed Sep 4 2019

NJC029-050043-
/O.CAN.KPHI.SV.W.0389.000000T0000Z-190905T0045Z/
Ocean NJ-
833 PM EDT Wed Sep 4 2019

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL OCEAN COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved offshore and out of 
the area. Therefore, the warning has been cancelled.

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 3979 7410 3992 7410 3990 7414 3986 7413
      3982 7416 3977 7410 3981 7415 3981 7419
      3987 7428 3995 7421 3997 7411 3994 7415
      3992 7408 3996 7409 3996 7407
TIME...MOT...LOC 0032Z 285DEG 22KT 3986 7401 

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 8:03 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester	57 min
Sep 4, 8:04 PM EDT	Special Weather Statement	PHI	Ocean	41 min
Sep 4, 8:16 PM EDT	Special Marine Warning	PHI		89 min
Sep 4, 8:16 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	59 min
Sep 4, 8:19 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	41 min
Sep 4, 8:20 PM EDT	Special Weather Statement	PHI	Ocean	40 min
Sep 4, 8:33 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Gloucester	83 min
Sep 4, 8:40 PM EDT	Special Marine Warning	PHI		95 min
Sep 4, 8:54 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	81 min
Sep 4, 9:01 PM EDT	Special Marine Warning	PHI		105 min
Sep 4, 9:14 PM EDT	Special Weather Statement	PHI	Cape May, Cumberland	46 min
Sep 4, 9:56 PM EDT	Special Weather Statement	PHI	Cumberland	49 min
Sep 4, 10:12 PM EDT	Special Marine Warning	PHI		63 min
Sep 5, 3:32 AM EDT	Small Craft Advisory	PHI		67 hr
Sep 5, 3:44 AM EDT	Rip Current Statement	PHI	Atlantic, Cape May, Monmouth, Ocean	41 hr
Sep 5, 3:20 PM EDT	Tropical Storm Warning	PHI		29 hr
Sep 5, 3:22 PM EDT	High Surf Advisory	PHI	Atlantic, Cape May, Monmouth, Ocean	42 hr

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.