National Weather Service Raw Text Product

087 
NOUS41 KCLE 111916
PNSCLE
OHZ036-112330-

Public Information Statement
National Weather Service Cleveland OH
316 PM EDT Thu Jun 11 2020

...80 MPH Straight-Line Thunderstorm Wind Damage Found in Marion...

Location...Marion in Marion County, Ohio
Date...June 10, 2020 
Estimated Time...5:53 PM to 6:00 PM EDT 
Estimated Maximum Wind Speed...80 mph  
Fatalities...0
Injuries...1

* 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 Cleveland, Ohio, in conjunction 
with Marion County Emergency Management, has determined that storm
damage in the city of Marion was due to thunderstorm straight-
line wind damage with estimated wind speeds of up to 80 mph.

A squall line moving from south-southwest to north-northeast 
produced significant straight- line wind damage across much of 
northern Ohio during the evening hours of June 10, 2020. One of 
the more significant areas of damage was in the city of Marion. 
Significant severe winds of up to 80 mph entered the area just 
before 6:00 pm local time. Damage in the city of Marion and 
surrounding areas was sporadic in nature and did not have a 
continuous path through the region. Damage in the city of Marion 
consisted mostly of trees and power lines down across the city, 
including some onto buildings. A brick facade of a building in the
business district of Marion sustained damage and bricks fell onto
an adjacent vehicle, resulting in one injury to the occupant of 
the vehicle. The nature of the wall damage at this location 
confirms strong south-southwest winds over the area that pushed 
the bricks off the side of the building. An industrial building 
just to the west side of the downtown area of Marion sustained 
roof damage on its southwest corner, where strong south-southwest 
winds would peel back the corner of the roof.

The National Weather Service in Cleveland has seen evidence of 
gustnadoes, which are a common vortex-like structure on the 
outflow ahead of significant wind maximum, across northern Ohio 
with the thunderstorms on June 10th. This includes one instance of
a gustnado in the Marion area around the time of this wind 
damage. By National Weather Service definition, a gustnado is a 
small, whirlwind which forms as an eddy in thunderstorm outflows. 
They do not connect with any cloud-base rotation and are not 
tornadoes. Since their origin is associated with cumuliform 
clouds, gustnadoes will be classified as Thunderstorm Wind events.
Like dust devils, some stronger gustnadoes can cause damage.

NWS Cleveland

$$