Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 36, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 26, 2021, 6:08 PM EDT for 4 counties in New Jersey. It was in force for 31 min. 12 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
- May 26, 2021, 6:08 PM EDT (22:08 UTC)
- Expired
- May 26, 2021, 6:39 PM EDT
- In force
- 31 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 79 km from the middle of the area, began a volume at 22:09 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 |
|---|---|---|---|
| May 26, 6:08 PM EDT | TSTM WND DMG | 1 Nnw Manville, NJ | TREE SPLIT IN HALF. |
| May 26, 6:14 PM EDT | TSTM WND DMG | 1 S Somerville, NJ | REPORTS OF DOWNED TREES AND WIRES IN THE SOMERVILLE AREA. TIME ESTIMATED FROM RADAR. |
| May 26, 6:14 PM EDT | TSTM WND DMG | Mendham, NJ | SEVERAL REPORTS OF DOWNED TREES AND WIRES IN MENDHAM. TIME ESTIMATED FROM RADAR. |
| May 26, 6:17 PM EDT | TSTM WND DMG | 1 Nw Brookside, NJ | DOWNED TREE LIMBS AND WIRES NEAR WOODLAND ROAD. TIME ESTIMATED FROM RADAR. |
| May 26, 6:19 PM EDT | TSTM WND DMG | 1 N Basking Ridge, NJ | DOWNED TREE ON U.S. HIGHWAY 202 SOUTHBOUND NORTH OF COUNTY ROAD 613. LANE RESTRICTIONS REQUIRED. TIME ESTIMATED FROM RADAR. |
| May 26, 6:22 PM EDT | TSTM WND DMG | 1 Wnw Millington, NJ | DOWNED TREE LIMBS AND WIRES REPORTED IN SEVERAL LOCATIONS BETWEEN LYONS AND MILLINGTON. TIME ESTIMATED FROM RADAR. |
| May 26, 6:24 PM EDT | TSTM WND DMG | 1 Se Long Hill Twp, NJ | DOWNED TREE LIMBS AND WIRES NEAR MOUNTAIN AVENUE. TIME ESTIMATED FROM RADAR. |
| May 26, 6:27 PM EDT | TSTM WND DMG | 1 Ne Watchung, NJ | DOWNED TREES AND WIRES NEAR VALLEY ROAD. TIME ESTIMATED FROM RADAR. |
| May 26, 6:27 PM EDT | TSTM WND DMG | 3 Ne Long Hill Twp, NJ | DOWNED TREES AND WIRES REPORTED IN LONG HILL AND MILLINGTON. TIME ESTIMATED FROM RADAR. |
| May 26, 6:29 PM EDT | TSTM WND DMG | 1 Wsw Fox Hill, NJ | DOWNED TREE LIMBS AND WIRES NEAR PARK ROAD. TIME ESTIMATED FROM RADAR. |
| May 26, 6:30 PM EDT | TSTM WND DMG | 1 Ese Denville, NJ | DOWNED TREE LIMBS AND WIRES NEAR TABOR ROAD. TIME ESTIMATED FROM RADAR. |
| May 26, 6:33 PM EDT | TSTM WND DMG | Chatham, NJ | MULTIPLE TREE LIMBS DOWN IN THE AREA. TIME REPORTED FROM THE OBSERVER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 26, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.1 hours before the alert went out and 129 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
- 5 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 554 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
881
WUUS51 KPHI 262208
SVRPHI
NJC019-023-027-035-262315-
/O.NEW.KPHI.SV.W.0036.210526T2208Z-210526T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
608 PM EDT Wed May 26 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Hunterdon County in northwestern New Jersey...
Southeastern Morris County in northern New Jersey...
Northern Somerset County in northern New Jersey...
Northeastern Middlesex County in northern New Jersey...
* Until 715 PM EDT.
* At 608 PM EDT, severe thunderstorms were located along a line
extending from near Budd Lake to White House Station, moving east
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...
Perth Amboy, Morristown, Somerville, Edison, Bridgewater, Carteret,
Dover, Madison, Middlesex, Florham Park, East Hanover, Bound Brook,
Manville, Chatham, Boonton, Wharton, Rockaway, Morris Plains, Mount
Arlington and Mendham.
People at the Morris County Mega Site should seek safe shelter
immediately!
This includes the following highways...
New Jersey Turnpike between exits 11 and 12.
Interstate 78 in New Jersey between mile markers 25 and 41.
Interstate 80 in New Jersey between mile markers 30 and 48.
Interstate 287 in New Jersey between mile markers 0 and 9, and
between mile markers 12 and 46.
Garden State Parkway between mile markers 126 and 133.
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 4055 7425 4050 7426 4050 7428 4046 7424
4054 7441 4055 7480 4092 7465 4091 7427
4090 7434 4083 7433 4076 7438 4075 7436
4067 7446 4066 7445 4065 7440 4060 7446
4059 7421 4056 7421
TIME...MOT...LOC 2208Z 269DEG 26KT 4085 7471 4061 7480
HAIL...<.75IN
WIND...60MPH
$$
Meola2 follow-up statements
387
WWUS51 KPHI 262221
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
621 PM EDT Wed May 26 2021
NJC019-262231-
/O.CAN.KPHI.SV.W.0036.000000T0000Z-210526T2315Z/
Hunterdon NJ-
621 PM EDT Wed May 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HUNTERDON COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northern New Jersey.
LAT...LON 4055 7425 4050 7426 4050 7428 4046 7424
4054 7441 4056 7471 4091 7462 4091 7427
4090 7434 4083 7433 4076 7438 4075 7436
4067 7446 4066 7445 4065 7440 4060 7446
4059 7421 4056 7421
TIME...MOT...LOC 2221Z 267DEG 32KT 4082 7452 4058 7457
$$
NJC023-027-035-262315-
/O.CON.KPHI.SV.W.0036.000000T0000Z-210526T2315Z/
Morris NJ-Somerset NJ-Middlesex NJ-
621 PM EDT Wed May 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHEASTERN MORRIS...NORTHERN SOMERSET AND NORTHEASTERN
MIDDLESEX COUNTIES...
At 621 PM EDT, severe thunderstorms were located along a line
extending from near Morris Plains to Martinsville, moving east at 35
mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Perth Amboy, Morristown, Somerville, Edison, Bridgewater, Carteret,
Dover, Madison, Middlesex, Florham Park, East Hanover, Bound Brook,
Manville, Chatham, Boonton, Wharton, Rockaway, Morris Plains, Mendham
and Mountain Lakes.
People at the Morris County Mega Site should seek safe shelter
immediately!
This includes the following highways...
New Jersey Turnpike between exits 11 and 12.
Interstate 78 in New Jersey between mile markers 29 and 41.
Interstate 80 in New Jersey between mile markers 32 and 34, and
between mile markers 38 and 48.
Interstate 287 in New Jersey between mile markers 0 and 9, and
between mile markers 12 and 46.
Garden State Parkway between mile markers 126 and 133.
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 4055 7425 4050 7426 4050 7428 4046 7424
4054 7441 4056 7471 4091 7462 4091 7427
4090 7434 4083 7433 4076 7438 4075 7436
4067 7446 4066 7445 4065 7440 4060 7446
4059 7421 4056 7421
TIME...MOT...LOC 2221Z 267DEG 32KT 4082 7452 4058 7457
HAIL...0.88IN
WIND...60MPH
$$
Meola587
WWUS51 KPHI 262239
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
639 PM EDT Wed May 26 2021
NJC023-027-035-262249-
/O.CAN.KPHI.SV.W.0036.000000T0000Z-210526T2315Z/
Morris NJ-Somerset NJ-Middlesex NJ-
639 PM EDT Wed May 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MORRIS...NORTHERN
SOMERSET AND NORTHEASTERN MIDDLESEX COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northern New Jersey.
LAT...LON 4055 7425 4050 7426 4050 7428 4046 7424
4054 7441 4056 7471 4091 7462 4091 7427
4090 7434 4083 7433 4076 7438 4075 7436
4067 7446 4066 7445 4065 7440 4060 7446
4059 7421 4056 7421
TIME...MOT...LOC 2237Z 269DEG 26KT 4082 7437 4058 7442
$$
MeolaThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 48 min |
| May 26, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Warren | 41 min |
| May 26, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 2 more | 67 min |
| May 26, 6:49 PM EDT | Special Marine Warning | PHI | 56 min | |
| May 26, 7:04 PM EDT | Special Marine Warning | PHI | 26 min | |
| May 26, 7:23 PM EDT | Special Marine Warning | PHI | 97 min | |
| May 26, 7:56 PM EDT | Special Marine Warning | PHI | 71 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2021Every severe thunderstorm warning in 2021
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.