Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 381, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 22, 2019, 7:57 PM EDT for Morris County, Somerset County, New Jersey. It was in force for 18 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 22, 2019, 7:57 PM EDT (23:57 UTC)
- Expired
- Aug 22, 2019, 8:15 PM EDT
- In force
- 18 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 86 km from the middle of the area, began a volume at 23:56 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 22, 8:00 PM EDT | TSTM WND DMG | 1 N Chatham, NJ | DELAYED REPORT. DOWNED TREES AND WIRES NEAR VAN DOREN AVENUE AND CLARK STREET. TIME ESTIMATED FROM RADAR. |
| Aug 22, 8:00 PM EDT | TSTM WND DMG | 3 Ene Long Hill Twp, NJ | DOWNED TREES AND WIRES NEAR NICHOLSON DRIVE AND SUNSET DRIVE. TIME ESTIMATED FROM RADAR. |
| Aug 22, 8:00 PM EDT | TSTM WND DMG | Florham Park, NJ | DELAYED REPORT. DOWNED TREES AND WIRES NEAR THE INTERSECTION OF KICE ROAD AND DEERFIELD DRIVE. 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, 12.0 hours before the alert went out and 133 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
- 534 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 922 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted.
605
WUUS51 KPHI 222357
SVRPHI
NJC027-035-230015-
/O.NEW.KPHI.SV.W.0381.190822T2357Z-190823T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
757 PM EDT Thu Aug 22 2019
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southeastern Morris County in northern New Jersey...
Northeastern Somerset County in northern New Jersey...
* Until 815 PM EDT.
* At 757 PM EDT, a severe thunderstorm was located over Madison, or
near Summit, moving southeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Morristown, Madison, Florham Park, East Hanover, Chatham, Morris
Plains, Far Hills, Millington, Basking Ridge, North Plainfield,
Bernardsville, Watchung and Hanover Township.
This includes the following highways...
Interstate 287 in New Jersey between mile markers 24 and 41.
Interstate 78 in New Jersey between mile markers 35 and 42.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4079 7437 4074 7437 4067 7446 4066 7445
4066 7440 4063 7442 4060 7445 4067 7463
4086 7446 4084 7433
TIME...MOT...LOC 2357Z 295DEG 29KT 4074 7441
HAIL...<.75IN
WIND...60MPH
$$
NC1 follow-up statement
841
WWUS51 KPHI 230009
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
809 PM EDT Thu Aug 22 2019
NJC027-035-230019-
/O.EXP.KPHI.SV.W.0381.000000T0000Z-190823T0015Z/
Morris NJ-Somerset NJ-
809 PM EDT Thu Aug 22 2019
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MORRIS AND
NORTHEASTERN SOMERSET COUNTIES WILL EXPIRE AT 815 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4079 7437 4074 7437 4067 7446 4066 7445
4066 7440 4063 7442 4060 7445 4067 7463
4086 7446 4084 7433
TIME...MOT...LOC 0009Z 295DEG 29KT 4066 7546
$$
NCThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 10:28 PM EDT | Special Weather Statement | PHI | Camden, Mercer | 32 min |
| Aug 22, 6:43 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 47 min |
| Aug 22, 7:16 PM EDT | Special Weather Statement | PHI | Morris, Warren | 29 min |
| Aug 22, 7:30 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset | 30 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2019Every 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.