As an old lake sailor: During the evening, when the land cools faster than the water, the breeze tends to blow offshore. In the morning, when the land is heating up faster than the water, it tends to blow onshore. As the warm air rises, it creates lower pressure and sucks in the cooler air. Of course, we're assuming there aren't other, more serious, weather conditions affecting the winds. The sea breeze/shore breeze effect is emphasized at the shoreline, and decreases with distance from the shore. Bill Riker M-15 #184 Storm Petrel -----Original Message----- From: montgomery_boats-admin@mailman.xmission.com [mailto:montgomery_boats-admin@mailman.xmission.com]On Behalf Of s.mcclellan@attbi.com Sent: May 31, 2002 8:58 AM To: Listserver MBoats Subject: M_Boats: wind becoming onshore by afternoon What does it mean when wind is "becoming onshore"? O -------(\_----------(\_------- ~ ~ (\_ ~ ~ ~ ~ ~ Steve McClellan~~M15~#152~~Chicago _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats