Especially at this time of year, watch for the vertical development of clouds. The greater the vertical development, the more violent the weather will be. Just because it is a beautiful sunny day, does not mean that that cumulus cloud, rapidly growing into a cimulonimbus, is benign. If you're watching them grow, you really have no excuse for being surprised when a violent squall comes through. Think "Animal House"- reefing, what a great idea!
Lightning? Twenty years at sea-never been hit. Follow whatever grounding philosophy makes you feel better. Put your electronics in the microwave-and then throw the microwave overboard-it'll be safer yet. Get a golf ball and practise your putting on the foredeck. If, on the odd chance you sustain a hit, you're probably not going to have much to worry about. It's a good idea to laugh when you see the lightning bolts, especially the close ones. The fact you're seeing them means you're still alive. It's the one you didn't see that killed you. If agnosticism is your belief of choice, this might be the time to sell short.(g)
“Scientists are people who build the Brooklyn Bridge and then buy it.”
Wm. F. Buckley, Jr.