Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For...

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Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215-227) Reminder: Exam I next Friday! Review sheet is posted

Transcript of Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For...

Page 1: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Precipitation, Air Masses, and FrontsCurrent Weather

Finish Precipitation

Air Masses  

Fronts

For Next Class: Read Chapter 7 (pp. 215-227)

Reminder: Exam I next Friday! Review sheet is posted

Page 2: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Moisture Droplets

Figure 7.20

Page 3: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Raindrop and Snowflake Formation

Figure 7.21

Page 4: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Saturation Vapor Pressure

Figure 7.12

Page 5: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

© AMS 5

Favorable conditions for freezing rain

Temperature conditions required for formation of

frozen, freezing, and liquid forms of precipitation

Page 6: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Cloud Types and Identification  

Figure 7.22

Page 7: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Atmospheric Lifting Mechanisms 

Figure 8.6

Page 8: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Orographic Precipitation

Figure 8.9

Page 9: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Orographic Patterns

Figure 8.10

Page 10: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.
Page 11: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.
Page 12: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Average Annual Precipitation

Page 13: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

What is Rime Ice?

Page 14: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Rime IceA coating of tiny, white, ice particles caused by the rapid freezing of supercooled water droplets on impact with an object.

Page 15: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Rime Ice on Mt. Mitchell

Page 16: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Rime Ice on Beech Mountain

Page 17: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Heavy Rime

Icing on

Mt. Washington

Page 18: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.
Page 19: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Rime Icing on

Grandfather

Mountain

Page 20: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.
Page 21: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.
Page 22: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Snow Particle Photomicroscopy

Graupel

Page 23: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Snow Particle Photomicroscopy

Page 24: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

Air Masses

What are the major air mass types and source regions?

Page 25: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

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Air Masses

Classified as• Cold (polar, abbreviated as P) or warm (tropical or T)• Dry (continental or c) or humid (maritime or m)

Four basic types• Cold and dry, continental polar (cP)• Cold and humid, maritime polar (mP)• Warm and dry, continental tropical (cT)• Warm and humid, maritime tropical (mT)

Fifth type, arctic (A) air, is dry like continental polar air but colder

Page 26: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

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Page 27: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

27© AMS

Air Masses

Also differ in stability

Page 28: Precipitation, Air Masses, and Fronts Current Weather Finish Precipitation Air Masses Fronts For Next Class: Read Chapter 7 (pp. 215- 227) Reminder: Exam.

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Fronts

Narrow zone of transition between air masses that differ in density• Density differences usually due to temperature

contrasts Warm and cold fronts

• Frontogenesis: fronts form or grow stronger• Frontolysis: fronts weaken