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Air Masses and Fronts

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

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  1. Air Masses and Fronts Chapter 20

  2. Fronts • Boundary between 2 air masses • Causes warm air to rise • Where temperatures and humidity change

  3. Warm Front: Map View • Slow moving • Long lasting rain • Cirrus to stratus clouds, then nimbostratus

  4. Warm Front: Side View

  5. Warm Front: Side View

  6. Cold Front: Map View • Fast moving • Unstable air • Cumulus – cumulonimbus clouds • Thunderstorms • Clears quickly and leaves clear skies

  7. Cold Front

  8. Cold Front

  9. Occluded Front: Map View • When a cold front overtakes a warm front • Form low pressure systems

  10. Occluded Front: Side View Warm Air Cold Air Cold Air

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