Summary Of Wednesday Tornado In Grant Country, WI

Overview

During the early afternoon of Wednesday, May 9th, an isolated thunderstorm resulted in a tornado touchdown between Boscobel and Fennimore in rural Grant County, Wisconsin. The EF0 damaged a house, some outbuildings and trees along Golf Road.

Grant County Tornado

Tornado
Radar
Storm Reports
Environment

Tornadoes:

Tornado - LOCATION
COUNTY NAME

Date	Wednesday, 5/9/2018
Time (Local)	1:32 pm
EF Rating	EF0
Est. Peak Winds	75 mph
Path Length	1.5 miles
Max Width	70 yards
Injuries/Deaths	none
Summary: Tornado damaged trees, home and other outbuildings in rural Grant County, along Golf Road.

Track Map

Downloadable KMZ File


	Courtesy: WISC-TV	Courtesy: WISC-TV

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph

Radar:

Header


Reflectivity loop	Ref and SRM at 117 pm	Ref and SRM at 126 pm	Ref and SRM at 138 pm

Storm Reports

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
856 PM CDT WED MAY 9 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0132 PM     TORNADO          3 N FENNIMORE           43.03N 90.65W
05/09/2018                   GRANT              WI   EMERGENCY MNGR

            PRELIMINARY INFORMATION FROM THE GRANT
            COUNTY EMERGENCY MANAGER OF AN EF-0 TORNADO
            WITH ABOUT A 1.5 MILE PATH ALONG GOLF ROAD.
            WINDOWS WERE BLOWN OUT OF A HOUSE, TREES
            DOWNED AND A MACHINE SHED AND BARN WERE
            DAMAGED.


&&

$$

Environment

Satellite


Visible Satellite	Visible Satellite at 102 pm	Figure 3: Caption

Near-storm environment summary.


1 pm surface pattern	1 pm surface based instability	0-1km shear at 1 pm

Severe Weather Outlook.


Severe Outlook from 11 am - SPC	Figure 8: Caption	Figure 9: Caption

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