1. Local Weather Effects
ASTR /GEOL 1070

2. Land and Sea Breezes Land heats up faster than water
Afternoon breeze from sea
Land cools off faster than water
Night-time breeze from land

3. Katabatic Winds Air masses cool over cold land
Cold, dense air flows down, outward
Brr!

4. Steam Fog
Warmer water under colder air
Moisture rises, condenses

5. Lake-Effect Precipitation
Warmer water under colder air
Large enough body to make a cloud
More precipitation downwind of water

6. Valley Fog Downslope night breeze trapped in valley
Air below dew point

7. Radiation Fog Ground cools by radiation at night
Especially effective when:
Ground is snow-covered
Air is still
No cloud cover

8. Gap Wind
Wind flows over a mountain range
Fastest through gaps