The areas affected include... Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border... Port Sanilac to Port Huron MI...
At 330 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds up to 30 knots. This thunderstorm was located near Lakeport, moving east at 10 knots.
The strong thunderstorm will move over mainly open waters with additional development likely northward toward Port Sanilac.