The Collaborative International Dictionary of English v.0.48:

Weather \Weath"er\, a. (Naut.)
   Being toward the wind, or windward -- opposed to lee; as,
   weather bow, weather braces, weather gauge, weather lifts,
   weather quarter, weather shrouds, etc.
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   Weather gauge.
   (a) (Naut.) The position of a ship to the windward of
       another.
   (b) Fig.: A position of advantage or superiority; advantage
       in position.
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             To veer, and tack, and steer a cause
             Against the weather gauge of laws.   --Hudibras.
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   Weather helm (Naut.), a tendency on the part of a sailing
      vessel to come up into the wind, rendering it necessary to
      put the helm up, that is, toward the weather side.

   Weather shore (Naut.), the shore to the windward of a ship.
      --Totten.

   Weather tide (Naut.), the tide which sets against the lee
      side of a ship, impelling her to the windward. --Mar.
      Dict.
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