A severe weather outbreak impacted the mid-Atlantic from the evening of October 31 through the pre-dawn hours of November 1. A strong area of low pressure moved through the eastern Great Lakes on the 31st. Ahead of it, strong southerly flow advected an unseasonably warm and moist air mass into the mid-Atlantic. This generated enough instability, combined with extremely strong wind fields, to produce a low topped line of severe convection which tracked across the entire region. Widespread damaging wind occurred as the squall line moved through, along with a couple of short lived embedded tornadoes.

Thunderstorm Wind in WARREN, NEW JERSEY
From 31-OCT-19 22:19:00 to 31-OCT-19 22:19:00 (EST-5)
Location: PHILLIPSBURG
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Several reports of downed trees and power lines in Phillipsburg and Lopatcong Twp. Time estimated from radar.

Thunderstorm Wind in WARREN, NEW JERSEY
From 31-OCT-19 22:29:00 to 31-OCT-19 22:29:00 (EST-5)
Location: ALPHA
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Trees and wires were downed on Pinchers Point Rd, River Rd, Edge Rd, and Still Valley Rd. Time estimated from radar.

Thunderstorm Wind in WARREN, NEW JERSEY
From 31-OCT-19 22:37:00 to 31-OCT-19 22:37:00 (EST-5)
Location: OXFORD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Several reports of downed trees in Oxford Twp, including on Jonestown Rd and Washington Ave. Time estimated from radar.

Thunderstorm Wind in WARREN, NEW JERSEY
From 31-OCT-19 22:49:00 to 31-OCT-19 22:49:00 (EST-5)
Location: LONG BRIDGE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Several reports of downed trees and power lines in Allamuchy Twp and Hackettstown. Time estimated from radar.

Thunderstorm Wind in WARREN, NEW JERSEY
From 31-OCT-19 22:50:00 to 31-OCT-19 22:50:00 (EST-5)
Location: HACKETTSTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A large tree fell onto power lines on Hamilton Dr. Time estimated from radar.

Thunderstorm Wind in HUNTERDON, NEW JERSEY
From 31-OCT-19 22:52:00 to 31-OCT-19 22:52:00 (EST-5)
Location: STOCKTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Downed power lines on NJ-29 south of Ferry St. All lanes were closed.

Thunderstorm Wind in HUNTERDON, NEW JERSEY
From 31-OCT-19 22:52:00 to 31-OCT-19 22:52:00 (EST-5)
Location: SERGEANTSVILLE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree fell onto a house, causing a serious injury. Time estimated from radar.

Thunderstorm Wind in HUNTERDON, NEW JERSEY
From 31-OCT-19 22:54:00 to 31-OCT-19 22:54:00 (EST-5)
Location: STOCKTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on NJ-29 south of Brookville Hollow Rd. All lanes were closed. Time estimated from radar.

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 31-OCT-19 22:54:00 to 31-OCT-19 22:54:00 (EST-5)
Location: HOPATCONG
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A photo showed a large tree down on power lines. The report also indicated several additional trees down on power lines with multiple transformer fires in the area. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 31-OCT-19 22:57:00 to 31-OCT-19 22:57:00 (EST-5)
Location: DELAIR
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Power lines were downed on US-130 southbound south of Union Ave. Time estimated from radar.

Tornado in MORRIS, NEW JERSEY
From 31-OCT-19 23:23:00 to 31-OCT-19 23:28:00 (EST-5)
Location: GREEN VLG
Tornado F-scale: EF1
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado with a somewhat discontinuous damage path touched
down in Harding Township along Pleasantville Road. Numerous trees
were snapped and uprooted in this area bringing down several utility
poles and power lines. From there, the tornado crossed Village Road
and Dickens Mill Road then continued toward Douglas Road and Spencer
Place where it snapped and uprooted several more trees and crossed
Spring Valley Road. The tornado then crossed into Chatham Township
passing over a mostly uninhabited area. The tornado then passed into
Madison Borough along Prospect Place and Gibbons Place. In this
area, numerous hardwood trees were snapped and uprooted,
some falling onto homes, however no significant structural damage
occurred. The tornado then continued towards Drew University where
numerous hardwood trees were snapped and uprooted, some falling
onto and crushing several vehicles. The tornado's path became ill-
defined as it passed through the northern portion of downtown
Madison then re-intensified as it approached Greenwood Avenue. A
few trees were snapped and uprooted in this residential area a few
blocks northeast of downtown Madison. As the tornado continued
toward Sherwood Avenue, further intensification of damage was
noted. A few large hardwood trees were snapped and uprooted in
this area. One snapped tree fell and crushed the front porch of a
home and an uprooted tree fell onto another home. The tornado then
crossed NJ Route 24 into Florham Park Borough. A few trees were
snapped and uprooted along Woodbine Road, East Madison Avenue,
Pierson Lane, and Insley Road. The tornado finally dissipated near
the intersection of Insley Road and Pierson Lane.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 31-OCT-19 23:00:00 to 31-OCT-19 23:00:00 (EST-5)
Location: FLANDERS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on US-206 north of Flanders Netcong Rd. All lanes were closed. Time estimated from radar.

Thunderstorm Wind in MERCER, NEW JERSEY
From 31-OCT-19 23:00:00 to 31-OCT-19 23:00:00 (EST-5)
Location: WASHINGTON CROSSING
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on NJ-29 between Washington Crossing Rd and Valley Rd. All lanes were closed. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 31-OCT-19 23:05:00 to 31-OCT-19 23:05:00 (EST-5)
Location: CHESTER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mPing of 3 inch diameter tree limbs or power poles broken. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 31-OCT-19 23:05:00 to 31-OCT-19 23:05:00 (EST-5)
Location: MINE HILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on NJ-10 eastbound near CR-617. All lanes were closed. Time estimated from radar.

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 31-OCT-19 23:10:00 to 31-OCT-19 23:10:00 (EST-5)
Location: BEAVER LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on NJ-23 south of Beaver Lake Rd. All lanes were closed. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 31-OCT-19 23:14:00 to 31-OCT-19 23:14:00 (EST-5)
Location: FLAGTOWN
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported numerous trees uprooted throughout Hillsborough Twp. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 31-OCT-19 23:15:00 to 31-OCT-19 23:15:00 (EST-5)
Location: LYONS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on I-287 northbound north of Exit 26. Lane closures were temporarily put in place. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 31-OCT-19 23:15:00 to 31-OCT-19 23:15:00 (EST-5)
Location: ROCKAWAY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mPing of 1 inch diameter tree limbs broken or shingles blown off.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 31-OCT-19 23:15:00 to 31-OCT-19 23:15:00 (EST-5)
Location: MANVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Tree and wires downed onto US-206 southbound south of Dukes Parkway. Lane restrictions were put in place. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 31-OCT-19 23:18:00 to 31-OCT-19 23:18:00 (EST-5)
Location: BASKING RIDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on US-202 at North Finney Ave. All lanes were closed. Time estimated from radar.

Thunderstorm Wind in MERCER, NEW JERSEY
From 31-OCT-19 23:18:00 to 31-OCT-19 23:18:00 (EST-5)
Location: PRINCETON JCT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on NJ-64 southbound near Cranbury Rd. All lanes were closed. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 31-OCT-19 23:23:00 to 31-OCT-19 23:23:00 (EST-5)
Location: MORRISTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mPing of 1 inch diameter tree limbs broken or shingles blown off. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 31-OCT-19 23:28:00 to 31-OCT-19 23:28:00 (EST-5)
Location: FLORHAM PARK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on NJ-24 west of Exit 7. Temporary lane restrictions were put in place. Time estimated from radar.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 31-OCT-19 23:35:00 to 31-OCT-19 23:35:00 (EST-5)
Location: KEASBEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Power lines were downed onto NJ-27 south of Grove Ave. All lanes were closed. Time estimated from radar.