Metro-02
Meteorology and Flight Planning
a.
Manually produced facsimile prognostic charts
providing depictions of various surface and
low-level (up to 24,000 ft MSL) significant
weather features out to 48 hrs
b.
The 12- and 24-hour forecasts are produced on
one chart, 4 times a day
NOTE: Separate panels depict the surface
weather prognosis, and a second panel depicts
the "significant weather" for each forecast time.
c.
The 36- and 48-hour forecasts are on a
separate chart produced twice daily
NOTE: A single panel depicts both surface
features and significant weather. Underneath
the panel, a forecast discussion about which
guidance was used to prepare the chart, and
why it was used, is written in plain language
with many abbreviations.
d.
Chart intended for general flight planning, see
specific TAFs for terminal aerodrome forecasts
e.
Chart shares some symbology and coloration
with the Surface Analysis (SA) chart
f.
Frontal type and position shown using standard
symbols
(1) High- and low-pressure centers indicated
by Hs and Ls with the pressure value
(underlined) to the nearest whole millibar
(2) Pressure center movement is indicated by
an arrow for direction, and the forecast
speed of movement at the valid time of the
chart is entered in knots at the head of the
arrow
NOTE: The term "STNRY" is used to
indicate little movement.
(7-97) Original
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