Metro-02
Meteorology and Flight Planning
2.
Weather depiction charts 1.1.1.3.3
Sg 2, fr 7
Fig 5: Weather
a.
Compiled from hourly surface aviation reports
Depiction Chart
b.
Quickly identify positions of fronts and areas of
VFR, marginal VFR (MVFR), and IFR weather
(1) MVFR (marginal visual flight rules) weather
between 1,000 ft ceiling/3 miles visibility
and 3,000 ft ceiling/5 miles visibility
(2) MVFR has no bearing on the civilian or
military pilot but warns of poor flying
conditions
(3) Chart contains a legend for clarity
c.
Disseminated eight times a day, every 3 hrs
starting at 0100Z
d.
Symbology
(1) Standard symbols depict fronts (as on
surface analysis chart)
(2) Contoured unshaded areas indicate MVFR
weather with ceilings of 1,000-3,000 ft AGL
and/or visibilities of 3-5 sm
(3) Contoured shaded areas indicate IFR
weather with ceilings of less than 1,000 ft
AGL and/or visibility of less than 3 sm
(4) The weather depiction chart station model
contains no wind, temperature, or pressure
information.
NOTE: The following items are depicted:
sky coverage, height of lowest cloud layer
(or ceiling height, if present) in ft AGL,
visibility if 6 sm or less, and form of weather
obscuring the visibility (as in Figure 5).
(7-97) Original
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