3 people died on Lake Geneva, WI when their boat overturned in high winds. Seven were rescued. This occurred even though there were tornado then high wind warnings. From my blog earlier today, note the upper warning specifically mentions Lake Geneva: When outdoors, these warnings should be taken seriously. Here's a vital bit of information: If you see clouds like this, known as a "shelf cloud," high winds -- perhaps extreme winds, are likely. Last month, I took this photo of a shelf cloud. A wind gust of 81 mph was clocked as it went by. Regardless of whether it is a tornado/severe thunderstorm warning or a shelf cloud, stop what you are doing and head for shore immediately! A time-lapse video , from earlier today, shows a shelf cloud moving overhead. At the very end, you can see the visibility drop as sand is blown from the beach. Lightning Danger And, this tragic news just in.... In addition, three were injured by that lightning bolt. If thunder roars, go indoors! o...