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Old 14th August 2007 | 20:15
  #11 (permalink)  
boredcounter
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Joined: Nov 1999
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From: East Midlands
Cliq

Not too sure how LIDO defines this, but FAA, if memory serves right:

Vertical Wind Shear:

@/+ 6 kts/1000' = moderate
@/+ 10 kts/1000' = severe


Horizontal Wind Shear

@/+ 18kts/150 nm = moderate
@/+ 40kts/150 nm = severe


Hope that helps



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