I believe that the map shows wind speeds for each zone (3 second gust speeds
under TIA/EIA 222 rev G). The first number is the basic speed in miles per hour
with no ice. The number in parenthases is the basic wind speed in miles per
hour with an ice load.
>From: "Joe Subich, W4TV" <firstname.lastname@example.org>
>Sent: Oct 1, 2009 11:35 PM
>To: 'Lou Laderman' <email@example.com>, firstname.lastname@example.org
>Subject: RE: [TowerTalk] Wind zone maps
>The wind zone map in that document contains no legend.
>Exactly what are the numbers/contours intended to
> ... Joe, W4TV
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