Why not use real time data?
http://www.ndbc.noaa.gov/?lat=40.743...=&op=&ls=false
Many people on here trust Windguru as well.
http://www.windguru.cz/int/index.php?sc=264
Risk vs reward ratio doesn't seem to add up on this one though...especially with a 9 hour drive. They are thick and will be around for a while.
