Public Information Statement
Issued by NWS Buffalo, NY

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NOUS41 KBUF 041121
PNSBUF
NYZ010-021-085-041930-

Public Information Statement
National Weather Service Buffalo NY
721 AM EDT Fri Aug 4 2017

...MULTIPLE TORNADOES CONFIRMED ON JULY 20 2017...

...TORNADO CONFIRMED NEAR HAMBURG IN ERIE COUNTY NEW YORK...

Location...Hamburg in Erie County New York
Date...July 20 2017
Estimated Time...1230 PM EDT
Maximum EF-Scale Rating...EF2
Estimated Maximum Wind Speed...115 mph
Maximum Path Width...500 yards
Path Length...5.6 miles
Beginning Lat/Lon...42.74N / 78.86W
Ending lat/Lon...42.71N / 78.75W
* 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.

&&

...TORNADO CONFIRMED NEAR HOLLAND IN ERIE COUNTY NEW YORK...

Location...Holland in Erie County New York
Date...July 20 2017
Estimated Time...1250 PM EDT
Maximum EF-Scale Rating...EF1
Estimated Maximum Wind Speed...95 mph
Maximum Path Width...300 yards
Path Length...2.3 miles
Beginning Lat/Lon...42.65N / 78.56W
Ending lat/Lon...42.64N / 78.52W
* 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.

&&

...TORNADO CONFIRMED NEAR RUSHFORD IN ALLEGANY COUNTY NEW YORK...

Location...Rushford in Allegany County New York
Date...July 20 2017
Estimated Time...130 PM EDT
Maximum EF-Scale Rating...EF0
Estimated Maximum Wind Speed...85 mph
Maximum Path Width...50 yards
Path Length...0.9 miles
Beginning Lat/Lon...42.43N / 78.21W
Ending lat/Lon...42.32N / 77.95W
* Fatalities...0
* Injuries...0

&&

...TORNADO CONFIRMED NEAR ANGELICA IN ALLEGANY COUNTY NEW YORK...

Location...Angelica in Allegany County New York
Date...July 20 2017
Estimated Time...140 PM EDT
Maximum EF-Scale Rating...EF1
Estimated Maximum Wind Speed...95 mph
Maximum Path Width...150 yards
Path Length...4.7 miles
Beginning Lat/Lon...42.35N / 78.02W
Ending lat/Lon...42.32N / 77.95W
* 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 Buffalo NY has confirmed that
thunderstorms moving across western New York on July 20 2017
produced four tornadoes.

The storms moved onshore from Lake Erie with damage beginning in
Hamburg before moving across Orchard Park. Windows of hundreds of
car windows were blown out at the Hamburg Fairgrounds where trees
were downed and several buildings including the Grandstand
sustained damage. The tornado continued across the Chestnut Ridge
Park and the Town of Orchard Park causing more structural and tree
damage.

About ten miles further down along the thunderstorm`s path, a
second tornado touched down in the Town of Holland. Several
structures were damaged with a significant amount of tree damage.
Roads were blocked and wires were downed. Tracks of the Norfolk
Southern Railway were blocked in several places by large downed
trees.

The storm briefing re-intensified near Rushford spinning up a weak
tornado over a mainly wooded area. A small shed was destroyed and
drone video shows a path of downed and twisted trees.

Finally, based on radar and spotter reports two thunderstorms
merged and intensified and produced a tornado that extended from
the Town of Allen across the Town of Angelica to the Town of West
Almond. Several homes were damaged. A barn was severely damaged.
Several sheds or small outbuildings were tipped and moved.
Numerous large trees were shredded and downed. Some fell causing
additional structural damage.

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

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

$$

Levan



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