1. Fronts and Mid-latitude Cyclones Chapter 9 Meteorology 1010 Professor Bunds Utah Valley University

2. Fronts A front is a boundary between two air masses (of different densities) 2 main types, named based on which air mass is moving into the other: –Warm front; warm air pushes into and over colder air –Cold front; cold air pushes into and under warmer air

3. Warm Front Gently sloped boundary; gentle, long-lasting precip

4. Cold Front Steeply sloped boundary; intense, short-lived precip. (thunderstorms common)

5. Occluded Fronts More common

8. Midlatitude Cyclone

11. Formation of an Occlusion

15. Life of a Midlatitiude Cyclone

22. Weather of a Midlatitude Cyclone

28. Conditions Aloft Surface Conditions

30. Storm Tracks

33. Anticyclone

34. Storm of the Century