First Warnings Are Coming Out

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6:57pm, Jeff Piotrowski, near Amboy, reports strong rotation.
Here is the radar at that time. People in and around Amboy should keep a close eye out for any warnings or concentrated rotation in the clouds.



ORIGINAL POSTING:
The first severe thunderstorm warnings are now coming out in northern Illinois. Those are the yellow polygons.
Jeff Piotrowski and other storm chasers have been reporting funnel clouds during the last few minutes. There is some rotation starting to show on Doppler radar. So, I believe we are not far away from the first tornado warning of the day.

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