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SUPPLEMENTAL SHEET
When studying the FIS Addendum, the following information
may be helpful going in.
FIS Datalink Weather gives a "situation awareness" of one's
position, or planned position, in relation to the weather. It is a
tool that can be used to plan for the circumnavigation of severe
weather (strategic planning). It cannot be used to attempt pene-
tration of severe weather (tactical maneuvering) due to insuffi-
cient resolution and relative age of the data.
There are "regions of precipitous terrain" where coverage is not
possible due to signal blockage by the terrain.
Always make note of the age of the data being displayed, espe-
cially in areas of rapidly changing weather conditions. Use good
judgement when determining the currency of this data because
of the age.
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