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Air Masses and Fronts. Chapter 20. Fronts. Boundary between 2 air masses Causes warm air to rise Where temperatures and humidity change. Warm Front: Map View. Slow moving Long lasting rain Cirrus to stratus clouds, then nimbostratus. Warm Front: Side View. Warm Front: Side View.
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Air Masses and Fronts Chapter 20
Fronts • Boundary between 2 air masses • Causes warm air to rise • Where temperatures and humidity change
Warm Front: Map View • Slow moving • Long lasting rain • Cirrus to stratus clouds, then nimbostratus
Cold Front: Map View • Fast moving • Unstable air • Cumulus – cumulonimbus clouds • Thunderstorms • Clears quickly and leaves clear skies
Occluded Front: Map View • When a cold front overtakes a warm front • Form low pressure systems
Occluded Front: Side View Warm Air Cold Air Cold Air