Metro-03
Meteorology Review
C.
Warm front
Sg 2, fr 5
Fig 2: Warm Front
1.
Characteristics
a.
Predominantly cirriform and stratiform type
clouds
b.
Predominantly stable air and little turbulence
c.
Continuous precipitation ahead of front in wide
area
d.
Poor visibility from haze or fog
e.
Icing conditions
2.
Wind changes
a.
Before passage, wind flows parallel to front
from higher to lower pressure
b.
After passage, wind flows perpendicular to front
D.
Stationary front
1.
Characteristics: same as warm front, only less
intense—can persist in an area for many days
2.
Winds flow parallel to frontal line, but in opposite
direction—no prevailing wind to push front in any
direction
E.
Occluded fronts: form when faster-moving cold front
overtakes slower warm front
1.
Cold front occlusion
Sg 2, fr 6
Fig 3: Cold Front
a.
Characteristics
Occlusion
(1) Rain or freezing rain
(2) Poor visibility from fog and low ceilings
(3) Embedded thunderstorms
(7-97) Original
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