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NOUS41 KPBZ 240254
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PAZ021-029-031-073>076-240700-

Public Information Statement
National Weather Service Pittsburgh PA
1054 PM EDT Fri Jun 23 2017

...Tornado Confirmed Near Lone Pine in Washington County western
Pennsylvania...

Location...Lone Pine in Washington County western Pennsylvania
Date...June 23 2017
Estimated Time...321 pm - 323 pm EDT
Maximum EF-Scale Rating...EF1
Estimated Maximum Wind Speed...90 MPH
Maximum Path Width...250 yd
Path Length...2.4 miles
Beginning Lat/Lon...40.106N / 80.158W
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.

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, 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.

This information can also be found on our website at
weather.gov/pittsburgh.

For reference...the Enhanced Fujita Scale classifies tornadoes
into the following categories:

EF0...wind speeds 65 to 85 mph.
EF1...wind speeds 86 to 110 mph.
EF2...wind speeds 111 to 135 mph.
EF3...wind speeds 136 to 165 mph.
EF4...wind speeds 166 to 200 mph.
EF5...wind speeds greater than 200 mph.

$$

Kramar


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