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    Silicon Sea: Beaufort Wind Scale
    From: Dan Hogan
    Date: 2002 Oct 15, 09:32 -0700

    Beaufort Scale of Wind Force
    
    ------------------------------------------------------------------------------
    No.  Speed      Description    Height of Sea         Deep Sea Criteria
         Knots*                    Meters   Feet**
    ------------------------------------------------------------------------------
    0    Less       Calm             -       -           Sea mirror smooth
         Than 1
    
    1    1-3        Light Air        0.08    1/4         Small wavelett like
                                                         scales, no crests.
    
    2    4-6        Light Breeze     0.15    1/2         Small wavelets still
                                                         short but more
                                                         pronounced Crests
                                                         glassey and do not
    
    3    7-10       Gentle Breeze    0.6     2           Large waveletts crests
                                                         break.Foam is glassy.
                                                         Crests begin to break.
                                                         Foam is glassey.
    
    4    11-16      Moderate Breeze  1.0     3 1/2       Small waves becoming
                                                         longer; more frequent
                                                         white horses.
    
    5    17-21      Fresh Breeze     1.8     6           Moderate waves, and
                                                         longer; many white
                                                         horses.
    
    6    22-27      Strong Breeze    2.9     9 1/2       Large waves begin to
                                                         form; white crests more
                                                         extensive.
    
    7    28-33      Near Gale        4.1     13 1/2      Sea heaps up; white foam
                                                         blown in streaks.
    
    8    34-40      Gale             5.5     18          Moderately high waves of
                                                         greater length; crests
                                                         begin to form spindrift.
                                                         Foam blown in well
                                                         marked streaks.
    
    9    41-47      Strong Gale      7.0     23          High waves dense streaks
                                                         of foam. Crests begin to
                                                         roll over.
    
    10   48-55      Storm            8.8     29          Very high waves with
                                                         long overhanging crests.
                                                         Surface of the sea
                                                         becomes white with
                                                         great patches of foam.
                                                         Visibility affected.
    
    11   56-63      Violent Storm    11.3    37          Exceptionally high
                                                         waves. Sea completely
                                                         covered with foam.
    
         64+        Hurricane                            The air is filled with
                                                         spray and visibility
                                                         seriously affected.
    -----------------------------------------------------------------------------
    * Measured at height of 10 meters (33 feet) above sea level.
    ** In the open sea remote from land.
    -----------------------------------------------------------------------------
    
    
    
    
    Dan Hogan WA6PBY
    C27 "Gacha"
    dhhogan1---.net
    Nav-L Page: http://www.wa6pby.com
    
    
    

       
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