Pottawattamie IA-Shelby IA-Harrison IA-
147 AM CDT MON AUG 21 2017

…Significant Weather Advisory for POTTAWATTAMIE…EASTERN HARRISON
AND SHELBY COUNTIES UNTIL 230 AM CDT…

At 147 AM CDT, trained weather spotters reported a strong
thunderstorm over Walnut, or 11 miles northwest of Atlantic, moving
southeast at 40 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include…
Harlan, Oakland, Avoca, Treynor, Underwood, Carson, Walnut, Shelby,
Minden, Earling, Irwin, Persia, Defiance, Macedonia, Woodbine,
Dunlap, Neola, Panama, Hancock and Portsmouth.

This includes the following highways…
Highway 59 in Iowa between mile markers 41 and 91.
Interstate 80 in Iowa between mile markers 17 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.