Metro-02
Meteorology and Flight Planning
Fig 39: Picture with
D. Date/Time data
Date/Time Data
1.
As with all weather products, checking the currency
of the product can be important
2.
Some weather briefing facilities can provide
real-time CRT imagery, direct from the appropriate
satellite
3.
Printed product will display DTG legend
a.
First four numbers UCT (Z) time - indicates time
of picture transmission start
b.
Second group calendar day, month, year
c.
Last group indicates sector
E. Use of the pictures
1.
Low-pressure areas and fronts
a.
Primary characteristic is "question mark" or
"comma" shaped cloud pattern
b.
Center of low pressure located near center of
vortex
c.
Tail of the "comma" denotes the location of the
cold front
d.
Warm fronts often hard to define without the
use of surface data
e.
Enhanced IR very helpful in determining
locations of thunderstorms in the cloud pattern
2.
Mountain Wave Turbulence
a.
Caused by winds in excess of 25 kts blowing
perpendicular to rough or mountainous terrain
causing moderate to severe turbulence
(7-97) Original
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