Special Weather Statement issued August 15 at 7:43PM EDT by NWS

…A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ESSEX…CENTRAL ADDISON…SOUTHWESTERN CHITTENDEN AND WESTERN WASHINGTON COUNTIES… At 743 PM EDT, a strong thunderstorm was located over Ferrisburgh, moving southeast at 20 mph. Winds in excess of 30 mph and half inch hail are possible with this storm.

Source: National Weather Service Alerts for Vermont