PDS Severe Thunderstorm Watch issued:
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 426
NWS Storm Prediction Center Norman OK
1125 AM CDT Mon Aug 10 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Iowa
Northern Illinois
Far northwest Indiana
Far southern Wisconsin
Lake Michigan
* Effective this Monday morning and evening from 1125 AM until
700 PM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
* Primary threats include...
Widespread damaging winds and scattered significant gusts to 100
mph likely
Isolated large hail events to 1.5 inches in diameter possible
A couple tornadoes possible
SUMMARY...A derecho will rapidly progress across eastern Iowa and
northern Illinois this afternoon. Widespread severe wind gusts, some
of which should reach 80-100 mph are anticipated along the track of
the bow. Brief tornadoes are also possible.