Tornado Confirmed Near Near Pine Bank in Greene County southwestern Pennsylvania

Location…Near Pine Bank in Greene County southwestern
Pennsylvania
Date…08/22/2017
Estimated Time…423 PM EDT
Maximum EF-Scale Rating…EF1
Estimated Maximum Wind Speed…105 MPH
Maximum Path Width…250 yards
Path Length…1.5 miles
Beginning Lat/Lon…39.7580N / -80.2871W
Ending lat/Lon…39.753N / -80.269W
* Fatalities…0
* Injuries…0

* The information in this statement is preliminary and subject to
change pending final review of the event(s) and publication in
NWS Storm Data.

…Summary…
The National Weather Service in Pittsburgh PA has confirmed a
tornado near Near Pine Bank in Greene County southwestern
Pennsylvania on 08/22/2017.

The tornado touched down on the border of Gilmore and Wayne
Townships along Holy Hill Road. Tree damage was observed with
several softwood trees snapped at the trunk. The tornado
continued to move east-southeast and took nearly the entire roof
off a house. It also ripped the deck completely off the house,
which was attached with metal straps. A piece of the deck became a
projectile and was driven into the windshield of a vehicle. The
winds also lifted up an approximately 35 pound battery in front of
a camper and placed it 20 yards across the property. The tornado
then continued down a valley toward Oak Forest Road where it
eventually lifted. In the valley numerous hardwood trees were
snapped at the trunk along with a few of them being uprooted.

The survey continued into northern parts of Monongalia county,
however no evidence was found of any tree damage south of the
town of Brave, PA.

Multiple Tornadoes Confirmed on June 23 2017

Tornado 1: Lone Pine Tornado

Location…Lone Pine in Washington County western Pennsylvania
Date…June 23 2017
Estimated Time…319 pm – 323 pm EDT
Maximum EF-Scale Rating…EF1
Estimated Maximum Wind Speed…90 MPH
Maximum Path Width…250 yd
Path Length…3.3 miles
Beginning Lat/Lon…40.104N / 80.171W
Ending Lat/Lon…40.101N / -80.115W
* Fatalities…0
* Injuries…0

* The information in this statement is preliminary and subject to
change pending final review of the event(s) and publication in
NWS Storm Data.

…Summary…
The National Weather Service in Pittsburgh PA has confirmed a
tornado near Lone Pine in Washington County western Pennsylvania
on June 23 2017.

Damage was first encountered near Potato Run Road and Friends Road,
where a swath of tree blowdown was noted. Large limbs were snapped,
and hardwood trees were snapped or uprooted in this area. The swath
continued uphill along Friends Road. Well-built structures did not
seem to suffer direct wind damage at this point of the path, which
narrowed and weakened upon surmounting the hill along Friends Road.

The circulation then widened and intensified as it crossed Chestnut
Ridge Road. Considerable damage to trees and structures was evaluated
near Brush Run Road and Frazee Road. In this area, large hardwood
and softwood trunks were snapped, entire trees were stripped of
their branches and shingles were removed from several homes. A
detached garage suffered uplift of a portion of its roof, and a
large, downwind-facing porch roof was removed from a home. Deck
furniture was lofted and blown into properties several homes down
crosswind.

The path continued east-southeastward across Sunedecker Road,
where trees were snapped or uprooted. Damage along the remainder
of the path thereafter appeared limited to trees. The path in this
area narrowed and exhibited damage consistent with weaker wind
speed, until points near Daniels Run Road and Robinson Road. At
that location, the track became less coherent, consistent with radar
imagery showing a surge of outflow, thus suggesting the end of the
tornadic phase of the storm.

Damage at the beginning of the track was consistent with wind
speed of around 90 mph, so the tornado has been rated EF1 on the
Enhanced Fujita Scale.

Appreciation is extended to Washington County Public Safety and
Emergency Management, and to the public and media for their
cooperation with the survey.


Tornado 2: Cheat Lake Tornado

Location…Cheat Lake in Monongalia County northern West Virginia
Date…June 23, 2017
Estimated Time…555 PM EDT
Maximum EF-Scale Rating…EF0
Estimated Maximum Wind Speed…85 MPH
Maximum Path Width…200 Yards
Path Length…475 Yards
Beginning Lat/Lon…39.660N / 79.853W
Ending Lat/Lon…39.661N / 79.848W
* Fatalities…0
* Injuries…0

* The information in this statement is preliminary and subject to
change pending final review of the event(s) and publication in
NWS Storm Data.

…Summary…
The National Weather Service in Pittsburgh PA has confirmed a
tornado near Cheat Lake in Monongalia County, northern West
Virginia on June 23, 2017.

Focus for damage was in the vicinity of Lakeside Marine and Crab
Shack Caribba. In this area, several docks and two pontoon boats
were thrown across the marina, with the two boats placed upside
down closer to the Crab Shack. Canopies from several of the
docks were strewn about, with one wrapped around power lines
behind the marina. Some damage to trees was observed, with large
branches snapped off of hardwoods and a few trees uprooted close
to the lake shore, and several more hardwood and softwood trees
snapped half-way up their trunks or uprooted moving eastward up the
hill toward Mont Chateau Estates.

Most of the damage to structures was from fallen trees, but a
portion of the roof of a small establishment next to the marina
and Crab Shack was ripped off and placed westward toward the
lake shore, opposite the storm track.


Tornado 3: Southern Monongalia Tornado

Location…Approximately 10 miles south of Morgantown in
Monongalia County West Virginia
Date…June 23 2017
Estimated Time…747 PM EDT
Maximum EF-Scale Rating…EF1
Estimated Maximum Wind Speed…95 mph
Maximum Path Width…75 yards
Path Length…250 yards
Beginning Lat/Lon…39.495N / 79.930W
Ending Lat/Lon…39.496N / 79.928W
* Fatalities…0
* Injuries…0

* The information in this statement is preliminary and subject to
change pending final review of the event(s) and publication in
NWS Storm Data.

…Summary…
The National Weather Service in Pittsburgh PA has confirmed a
tornado approximately ten miles south of Morgantown in Monongalia
County West Virginia on June 23, 2017.

Although there was sporadic damage about 350 yards to the
southwest on the opposite ridgeline, the focused path of
concentrated tree damage began along a valley and continued up to
the top of the next ridgeline. Several dozen hardwood trees were
uprooted, with isolated trees being snapped several feet high.
Toward the end of the path, the damage showed clear indications of
convergent rotation. Appreciation is extended to Monongalia
County Emergency Management for their cooperation with the survey
team.