Garmin GDL 30A Owner's Manual - Page 20
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Weather Features
Alternating red
Blue fronts indicate
and blue fronts are
cold fronts.
stationary fronts.
18
Fronts
The map below shows fronts positions as well as areas of high (H) and low (L) pressure for the United
States. Blue fronts indicate cold fronts, red fronts indicate warm fronts, and alternating red and blue fronts
indicate stationary fronts. Dashed orange lines indicate dry lines.