Special Weather Statement issued July 28 at 6:41PM EDT by NWS

…A STRONG THUNDERSTORM WILL AFFECT SOUTHERN GRAND ISLE… NORTHWESTERN CHITTENDEN AND SOUTHWESTERN FRANKLIN COUNTIES… At 640 PM EDT, a strong thunderstorm was located near Grand Isle, moving northeast at 30 mph. Winds in excess of 40 mph and nickel size hail are possible with this storm.

Source: National Weather Service Alerts for Vermont