Severaldecades ago, my primary flight instructor taught me that being a safe pilot meant stayingon the ground when the weather didn't look good. When I got my instrument rating a fewyears later, my CFII cautioned me against flying when icing or thunderstorms wereanticipated.
This is a companion discussion topic for the original entry at https://www.avweb.com/flight-safety/technique/flying-real-world-weather