Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 121, NWS Philadelphia/Mount Holly

July 15, 2024Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 15, 2024, 5:18 AM EDT for Monmouth County, New Jersey. It was in force for 28 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: Jul 15, 2024, 5:18 AM EDT (09:18 UTC)
Expired: Jul 15, 2024, 5:46 AM EDT
In force: 28 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), 59 km from the middle of the area, began a volume at 09:17 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 15, 5:30 AM EDT	MARINE TSTM WIND 48	Sandy Hook, NJ	SDHN4.

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, 9.3 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: 134 J/kg
Mixed-layer CIN: -136 J/kg
Mixed-layer LCL: 1264 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

801 
WUUS51 KPHI 150918
SVRPHI
NJC025-151000-
/O.NEW.KPHI.SV.W.0121.240715T0918Z-240715T1000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
518 AM EDT Mon Jul 15 2024

The National Weather Service in Mount Holly NJ has issued a

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

* Until 600 AM EDT.

* At 517 AM EDT, a severe thunderstorm was located over Middletown,
  or 8 miles south of Huguenot, moving east at 20 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...
  Long Branch, Sandy Hook, Middletown, Tinton Falls, Holmdel, Red
  Bank, Keansburg, Matawan, Highlands, Navesink, Lincroft, Eatontown,
  West Long Branch, Keyport, Rumson, Little Silver, Oceanport,
  Shrewsbury, Strathmore, and North Middletown.

This includes Garden State Parkway between mile markers 108 and 120.
 
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 4027 7397 4033 7426 4045 7424 4045 7421
      4044 7420 4046 7418 4045 7416 4045 7413
      4041 7399 4044 7399 4048 7402 4047 7399
      4043 7397
TIME...MOT...LOC 0917Z 278DEG 18KT 4041 7415 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MPS

1 follow-up statement

681 
WWUS51 KPHI 150946
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
546 AM EDT Mon Jul 15 2024

NJC025-150956-
/O.CAN.KPHI.SV.W.0121.000000T0000Z-240715T1000Z/
Monmouth NJ-
546 AM EDT Mon Jul 15 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH COUNTY
IS CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and has exited the warned 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 4027 7397 4033 7426 4045 7424 4045 7421
      4044 7420 4046 7418 4045 7416 4045 7413
      4041 7399 4044 7399 4048 7402 4047 7399
      4043 7397
TIME...MOT...LOC 0944Z 278DEG 18KT 4039 7396 

$$

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 5:18 AM EDT	Special Marine Warning	PHI		36 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2024 Every severe thunderstorm warning in 2024

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.