National Weather Service United States Department of Commerce

Matthews Run Tornado of April 20th, 2017

A weak (EF-0) tornado occurred in central Warren County, PA in the evening of April 20th, 2017. The tornado touchdown was witnessed by several people, including local firefighters and county Emergency Management personnel.  See more details (maps and informational statement) below.

Map of area where a weak tornado occurred on April 20th, 2017 near Matthews Run in Warren Co PA

Wider map of area:

Wide view of area where tornado occurred on April 20th, 2017 (Central Warren Co PA)

Public Information Statement
National Weather Service State College PA
125 PM EDT Fri Apr 21 2017

...EF0 Tornado confirmed in Warren County...

Location...2 Miles North Northwest of Youngsville in Warren
County Pennsylvania
Date...April 20 2017
Estimated Time...754 PM EDT
Maximum EF-Scale Rating...EF0
Estimated Maximum Wind Speed...80 mph 
Maximum Path Width...20 Yards
Path Length...0.3 Mile
* 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.

The National Weather Service in State College PA in cooperation 
with Warren County Emergency Management officials has confirmed
that a weak, EF0 tornado briefly touched down about 2 Miles to 
the North Northwest of Youngsville in Warren County 
Pennsylvania on April 20 2017.

Damage from the tornado included approximately 25 downed or 
uprooted trees, and roof damage to one home that included 
several large areas of roof sheathing and shingles torn off.

Several eyewitnesses, including local firefighters and County 
Emergency Management Agency officials, watched the funnel 
cloud track from west to east and touch down briefly about 
one-quarter of a mile to the west of State Route 27 or 
Matthews Run Road, before tracking east and lifting about 
100 feet to the east of Matthews Run Road. The tornado was 
likely on the ground for just a minute or two from 754 pm 
to 756 pm EDT.  

An interesting occurrence associated with the tornado was 
that light objects in the form of blankets and empty water 
buckets were sucked out of an open barn and pulled about 100 
feet north, to the center of the tornado path.      

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.