Metro-02
Meteorology and Flight Planning
(2) Wind
(a) Internationally, wind may be
reported in kts (KT), kilometers
per hour (KMH), or meters per
second (MPS). Appropriate units
are indicated on both METAR and
TAF
(3) Wind Shear
(a) Low-level wind shear, not
associated with convective activity
(e.g., WS015/30045KT, see TAF)
will appear in TAFs in the United
States, Canada, and Mexico only
(4) Visibility
(a) Internationally, visibility is
reported in 4 digits, using meters,
with the direction of the lowest
visibility sector (e.g., 6000SW --
meaning visibility is lowest at
6,000 meters to the southwest)
(b) In the United States, we use
prevailing visibility in statute miles,
not the lowest visibility, so the
same conditions would be
reported differently
(c) International visibility reports also
contain a trend, such as:
i)
D -- Down
ii)
U -- Up
iii) N -- No change
iv) V -- Variable
(7-97) Original
Page 2-38
Previous Page
