Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 148, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 11, 2020, 6:18 PM EDT for Middlesex County, New Jersey. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 11, 2020, 6:18 PM EDT (22:18 UTC)
- Expired
- Jul 11, 2020, 6:45 PM EDT
- In force
- 27 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Middlesex County, NJ
The radar
The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 22:19 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.3 hours before the alert went out and 125 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.
- Mixed-layer CAPE
- 600 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 694 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted.
237
WUUS51 KPHI 112218
SVRPHI
NJC023-112245-
/O.NEW.KPHI.SV.W.0148.200711T2218Z-200711T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
618 PM EDT Sat Jul 11 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Middlesex County in northern New Jersey...
* Until 645 PM EDT.
* At 618 PM EDT, a severe thunderstorm was located over Edison, or
near New Brunswick, moving northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
New Brunswick, Perth Amboy, Edison, East Brunswick, Carteret,
Colonia, Society Hill, North Brunswick Township, Woodbridge, South
Plainfield, South River, Highland Park, Metuchen, Milltown, Iselin,
Sewaren, Port Reading, Fords and Avenel.
This includes the following highways...
New Jersey Turnpike between exits 10 and 13.
Interstate 287 in New Jersey between mile markers 0 and 9.
Garden State Parkway between mile markers 126 and 134.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4056 7421 4055 7425 4050 7426 4045 7443
4056 7450 4060 7443 4061 7432 4059 7429
4060 7426 4060 7421 4059 7420
TIME...MOT...LOC 2218Z 238DEG 28KT 4053 7441
HAIL...<.75IN
WIND...60MPH
$$
Staarmann1 follow-up statement
242
WWUS51 KPHI 112231
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
631 PM EDT Sat Jul 11 2020
NJC023-112245-
/O.CON.KPHI.SV.W.0148.000000T0000Z-200711T2245Z/
Middlesex NJ-
631 PM EDT Sat Jul 11 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHEASTERN MIDDLESEX COUNTY...
At 631 PM EDT, a severe thunderstorm was located over Edison, or near
New Brunswick, moving northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
New Brunswick, Perth Amboy, Edison, East Brunswick, Carteret,
Colonia, North Brunswick Township, Woodbridge, South River, Highland
Park, Metuchen, Milltown, Iselin, Sewaren, Port Reading, Fords and
Avenel.
This includes the following highways...
New Jersey Turnpike between exits 10 and 13.
Interstate 287 in New Jersey between mile markers 0 and 4.
Garden State Parkway between mile markers 126 and 134.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4056 7421 4055 7425 4050 7426 4045 7443
4049 7444 4060 7440 4061 7432 4059 7429
4060 7426 4060 7421 4059 7420
TIME...MOT...LOC 2231Z 224DEG 24KT 4051 7439
HAIL...<.75IN
WIND...60MPH
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 8:12 PM EDT | Coastal Flood Statement | PHI | Ocean | 14 hr |
| Jul 10, 8:46 PM EDT | Areal Flood Warning | PHI | Cumberland, Gloucester, Salem | 13 hr |
| Jul 11, 5:28 PM EDT | Special Weather Statement | PHI | Somerset | 32 min |
| Jul 11, 5:52 PM EDT | Special Weather Statement | PHI | Middlesex | 38 min |
| Jul 11, 6:02 PM EDT | Special Weather Statement | PHI | Sussex | 13 min |
| Jul 11, 6:45 PM EDT | Special Weather Statement | PHI | Ocean | 30 min |
| Jul 11, 7:57 PM EDT | Special Weather Statement | PHI | Monmouth | 33 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2020Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.