Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 296, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 15, 2020, 7:31 PM EST for 7 counties in New Jersey; Bucks County, Montgomery County, Pennsylvania. It was in force for 74 min. 13 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
- Nov 15, 2020, 7:31 PM EST (00:31 UTC)
- Expired
- Nov 15, 2020, 8:45 PM EST
- In force
- 74 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Bucks County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 80 km from the middle of the area, began a volume at 00:31 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 |
|---|---|---|---|
| Nov 15, 7:50 PM EST | TSTM WND DMG | Hamburg, NJ | SEVERAL REPORTS OF DOWNED TREES AND WIRES IN THE AREA. TIME ESTIMATED FROM RADAR. |
| Nov 15, 7:55 PM EST | TSTM WND DMG | 2 Ene Lambertville, NJ | SEVERAL TREES AND BRANCHES DOWN, ONE OF WHICH SNAPPED A POWER POLE AND KNOCKED DOWN A TRANSFORMER. TIME ESTIMATED FROM RADAR. |
| Nov 15, 7:58 PM EST | TSTM WND DMG | Far Hills, NJ | SEVERAL REPORTS OF DOWNED TREES AND WIRES IN THE AREA. TIME ESTIMATED FROM RADAR. |
| Nov 15, 8:00 PM EST | TSTM WND GST 62 | 2 Sw Vernon, NJ | VERNON TWP NJWXNET GAUGE. |
| Nov 15, 8:08 PM EST | TSTM WND DMG | 1 Sw Madison, NJ | SEVERAL REPORTS OF DOWNED TREES AND WIRES IN THE AREA. TIME ESTIMATED FROM RADAR. |
| Nov 15, 8:10 PM EST | TSTM WND DMG | 1 Nw Madison, NJ | DOWNED TREE ON NJ124 EASTBOUND DANFORTH ROAD, ONE LANE CLOSED. TIME ESTIMATED FROM RADAR. |
| Nov 15, 8:12 PM EST | TSTM WND DMG | 1 Nnw Watchung, NJ | MPING REPORT OF TREE LIMBS DOWN. TIME ESTIMATED FROM RADAR. |
| Nov 15, 8:14 PM EST | TSTM WND DMG | 2 Nw Washington Crossin, NJ | DOWNED POLE AND DOWNED WIRES ON NJ 29 SOUTHBOUND AREA RIVER ROAD. ALL LANES CLOSED. TIME ESTIMATED FROM RADAR. |
| Nov 15, 8:14 PM EST | TSTM WND DMG | Towaco, NJ | SEVERAL REPORTS OF DOWNED TREES AND WIRES IN THE AREA. TIME ESTIMATED FROM RADAR. |
| Nov 15, 8:22 PM EST | TSTM WND DMG | New Brunswick, NJ | SEVERAL REPORTS OF DOWNED TREE LIMBS AND WIRES IN THE AREA. TIME ESTIMATED FROM RADAR. |
| Nov 15, 8:23 PM EST | TSTM WND DMG | 1 E Somerset, NJ | SPOTTER REPORTS AN OUTDOOR CANOPY SHREDDED AND ADDITIONAL OUTDOOR FURNITURE DISPLACED. TIME ESTIMATED FROM RADAR. |
| Nov 15, 8:32 PM EST | TSTM WND GST 60 | Port Reading, NJ | TRAINED SPOTTER REPORTS WIND GUST OF 60 MPH AT PORT READING. |
| Nov 15, 8:48 PM EST | TSTM WND DMG | 2 Ese Freehold Twp, NJ | REPORTS OF DOWNED TREES AND POWER LINES IN THE FREEHOLD AND ADELPHIA AREAS. TIME ESTIMATED FROM RADAR. |
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 |
|---|---|---|---|
| Nov 15, 5:35 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.5 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 633 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 741 m²/s²
- 0-3 km storm-relative helicity
- 834 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
162
WUUS51 KPHI 160031
SVRPHI
NJC019-021-023-025-027-035-037-PAC017-091-160145-
/O.NEW.KPHI.SV.W.0296.201116T0031Z-201116T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
731 PM EST Sun Nov 15 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southeastern Hunterdon County in northwestern New Jersey...
Morris County in northern New Jersey...
Eastern Sussex County in northwestern New Jersey...
Mercer County in central New Jersey...
Somerset County in northern New Jersey...
Monmouth County in central New Jersey...
Middlesex County in northern New Jersey...
Eastern Montgomery County in southeastern Pennsylvania...
Southeastern Bucks County in southeastern Pennsylvania...
* Until 845 PM EST.
* At 730 PM EST, intense showers and embedded severe thunderstorms
were located along a line extending from near Millrift to Dingmans
Ferry to near Great Meadows-Vienna to near Frenchtown to Dublin to
Collegeville, moving east at 45 mph.
This line may contain little or no lightning. Do not wait until
you hear thunder before taking cover.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Trenton, New Brunswick, Perth Amboy, Long Branch, Morristown,
Asbury Park, Somerville, Sandy Hook, Somerset, Edison, Middletown,
Old Bridge, Howell, East Brunswick, Bridgewater, South Brunswick,
Sayreville, North Brunswick, Marlboro and Manalapan.
This includes the following highways...
New Jersey Turnpike between exits 8 and 13.
Pennsylvania Turnpike between mile markers 343 and 347.
Interstate 78 in New Jersey between mile markers 24 and 42.
Interstate 80 in New Jersey between mile markers 28 and 48.
Interstate 195 in New Jersey between mile markers 0 and 15, and
between mile markers 33 and 34.
Interstate 295 in New Jersey between mile markers 59 and 76.
Interstate 287 in New Jersey between mile markers 0 and 54.
Garden State Parkway between mile markers 99 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.
This is a DANGEROUS SITUATION. These storms are producing wind
damage as they move through. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
&&
LAT...LON 4017 7397 4016 7515 4036 7500 4043 7487
4128 7453 4120 7436 4110 7449 4104 7450
4100 7430 4091 7427 4091 7434 4083 7433
4067 7446 4065 7441 4060 7446 4060 7421
4047 7427 4041 7399 4048 7402 4047 7399
TIME...MOT...LOC 0030Z 267DEG 39KT 4144 7472 4123 7488 4088 7494 4052
7501 4039 7519 4017 7547
HAIL...<.75IN
WIND...60MPH
$$
Gorse2 follow-up statements
125
WWUS51 KPHI 160116
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
816 PM EST Sun Nov 15 2020
NJC037-PAC091-160126-
/O.CAN.KPHI.SV.W.0296.000000T0000Z-201116T0145Z/
Sussex NJ-Montgomery PA-
816 PM EST Sun Nov 15 2020
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SUSSEX AND EASTERN
MONTGOMERY COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EST for
southern, central, northern and northwestern New Jersey...and
southeastern Pennsylvania.
LAT...LON 4017 7397 4018 7471 4016 7498 4049 7476
4104 7450 4100 7430 4091 7427 4091 7434
4083 7433 4068 7445 4066 7445 4065 7441
4060 7446 4060 7421 4050 7428 4047 7427
4041 7401 4045 7399 4048 7402 4047 7399
TIME...MOT...LOC 0116Z 267DEG 39KT 4146 7407 4125 7423 4090 7429 4054
7436 4042 7455 4020 7483
$$
NJC019-021-023-025-027-035-PAC017-160145-
/O.CON.KPHI.SV.W.0296.000000T0000Z-201116T0145Z/
Hunterdon NJ-Morris NJ-Mercer NJ-Somerset NJ-Monmouth NJ-
Middlesex NJ-Bucks PA-
816 PM EST Sun Nov 15 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EST
FOR SOUTHEASTERN HUNTERDON...EASTERN MORRIS...MERCER...SOMERSET...
MONMOUTH...MIDDLESEX AND SOUTHEASTERN BUCKS COUNTIES...
At 816 PM EST, intense showers and embedded severe thunderstorms
were located along a line extending from near New Windsor to near
Greenwood Lake to Lincoln Park to Edison to Kendall Park to near
Woodside, moving east at 45 mph.
This line may contain little or no lightning. Do not wait until you
hear thunder before taking cover.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Trenton, New Brunswick, Perth Amboy, Long Branch, Morristown, Asbury
Park, Somerville, Sandy Hook, Somerset, Edison, Middletown, Old
Bridge, Howell, East Brunswick, Bridgewater, South Brunswick,
Sayreville, North Brunswick, Marlboro and Manalapan.
This includes the following highways...
New Jersey Turnpike between exits 8 and 13.
Interstate 78 in New Jersey between mile markers 29 and 41.
Interstate 80 in New Jersey between mile markers 35 and 48.
Interstate 195 in New Jersey between mile markers 0 and 9.
Interstate 295 in New Jersey between mile markers 60 and 76.
Interstate 287 in New Jersey between mile markers 0 and 54.
Garden State Parkway between mile markers 99 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 4017 7397 4018 7471 4016 7498 4049 7476
4104 7450 4100 7430 4091 7427 4091 7434
4083 7433 4068 7445 4066 7445 4065 7441
4060 7446 4060 7421 4050 7428 4047 7427
4041 7401 4045 7399 4048 7402 4047 7399
TIME...MOT...LOC 0116Z 267DEG 39KT 4146 7407 4125 7423 4090 7429 4054
7436 4042 7455 4020 7483
HAIL...<.75IN
WIND...60MPH
$$
Gorse948
WWUS51 KPHI 160137
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
837 PM EST Sun Nov 15 2020
NJC019-027-035-PAC017-160146-
/O.CAN.KPHI.SV.W.0296.000000T0000Z-201116T0145Z/
Hunterdon NJ-Morris NJ-Somerset NJ-Bucks PA-
837 PM EST Sun Nov 15 2020
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HUNTERDON...
EASTERN MORRIS...SOMERSET AND SOUTHEASTERN BUCKS COUNTIES IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EST for
central and northern New Jersey.
LAT...LON 4017 7397 4018 7465 4060 7430 4060 7421
4050 7428 4047 7427 4044 7420 4045 7418
4041 7401 4046 7400 4048 7401 4047 7399
4043 7399 4042 7400 4041 7399
TIME...MOT...LOC 0136Z 267DEG 39KT 4147 7379 4126 7395 4091 7401 4055
7408 4043 7427 4021 7456
$$
NJC021-023-025-160145-
/O.CON.KPHI.SV.W.0296.000000T0000Z-201116T0145Z/
Mercer NJ-Monmouth NJ-Middlesex NJ-
837 PM EST Sun Nov 15 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EST
FOR SOUTHEASTERN MERCER...MONMOUTH AND CENTRAL MIDDLESEX COUNTIES...
At 836 PM EST, intense showers and some embedded severe
thunderstorms were located along a line extending from near
Fahnestock State Park to near Peekskill to Bergenfield to Oakwood to
near Matawan to near Windsor, moving east at 45 mph.
This line may contain little or no lightning. Do not wait until you
hear thunder before taking cover.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Perth Amboy, Long Branch, Asbury Park, Sandy Hook, Middletown, Old
Bridge, Howell, East Brunswick, Sayreville, Marlboro, Manalapan,
Carteret, Tinton Falls, Holmdel, Red Bank, Matawan, Jamesburg,
Hightstown, Highlands and Cranbury.
This includes the following highways...
New Jersey Turnpike between exits 8 and 9, and between exits 11 and
13.
Interstate 195 in New Jersey between mile markers 6 and 9.
Interstate 287 in New Jersey between mile markers 0 and 1.
Garden State Parkway between mile markers 99 and 131.
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 4017 7397 4018 7465 4060 7430 4060 7421
4050 7428 4047 7427 4044 7420 4045 7418
4041 7401 4046 7400 4048 7401 4047 7399
4043 7399 4042 7400 4041 7399
TIME...MOT...LOC 0136Z 267DEG 39KT 4147 7379 4126 7395 4091 7401 4055
7408 4043 7427 4021 7456
HAIL...<.75IN
WIND...60MPH
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 7:50 PM EST | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more | 70 min |
| Nov 15, 8:12 PM EST | Special Marine Warning | PHI | 63 min | |
| Nov 15, 8:39 PM EST | Special Marine Warning | PHI | 2 hr | |
| Nov 15, 8:43 PM EST | Severe Thunderstorm Warning | PHI | Monmouth | 47 min |
| Nov 15, 8:54 PM EST | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean | 51 min |
| Nov 15, 9:53 PM EST | Small Craft Advisory | PHI | 27 hr | |
| Nov 15, 11:02 PM EST | Coastal Flood Statement | PHI | Ocean | 3 hr |
| Nov 16, 3:20 PM EST | Gale Watch | PHI | 13 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2020Severe Thunderstorm Warnings in Pennsylvania, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.