IRFP-01
Metro Review
COLOR
SYMBOL
DESCRIPTION
High pressure center
Blue
Low pressure center
Red
Blue
Cold front
Cold front aloft
Blue
Warm front
Red
Red
Warm front aloft
Stationary front
Red/Blue
Purple
Occluded front
Blue
Cold frontogenesis
Red
Warm frontogenesis
Red/Blue
Stationary frontogenesis
Cold frontolysis
Blue
Red
Warm frontolysis
Stationary frontolysis
Red/Blue
Occluded frontolysis
Purple
Purple
Squall line
Trough
Brown
Black
Ridge
Isobar
Black
Black
Intermediate isobar
Figure 18: STANDARD CHART SYMBOLS
(8-97) Original
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