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DO NOW…

DO NOW…. GRAB YOUR GEOJOURNAL… Predict why weather could be different on the front side of a mountain (windward) than on the back side of the mountain (Leeward). Explain. Weather Factors. Fronts. Types of Fronts and How they Form. front – the area where the air masses meet and do not mix

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DO NOW…

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  1. DO NOW… • GRAB YOUR GEOJOURNAL… • Predict why weather could be different on the front side of a mountain (windward) than on the back side of the mountain (Leeward). Explain.

  2. Weather Factors

  3. Fronts Types of Fronts and How they Form

  4. front – the area where the air masses meet and do not mix • There are 4 types of fronts: • Cold fronts • Warm fronts • Stationary fronts • Occluded fronts

  5. Cold Front • cold front - cold air moves in under a warm air mass What kind of weather would you expect a cold front to produce? Cold fronts can produce short, heavy rains, often thunderstorms with heavy winds, followed by clear skies and cooler, drier weather.

  6. Warm Front • warm front – warm air moves in over a cold air mass What kind of weather does a warm front produce? A warm front can cause steady rain or snow that may last for days and light winds, followed by warmer and more humid weather.

  7. Stationary Front • stationary front – an unmoving front where a cold air mass and a warm air mass meet

  8. Occluded Front • occluded front – a front formed where a warm front and cold front meet

  9. What Do Fronts Look Like from Space? Satellites show large weather patterns, such as fronts and storms which help weather scientists.

  10. WIND

  11. A wind is the horizontal movement of air from an area of high pressure to an area of low pressure. All winds are caused by differences in air pressure.

  12. local winds – winds that blow over short distances Local winds are caused by unequal heating of Earth’s surface within a small area. sea breeze – a wind that blows from an ocean or lake onto land land breeze – the flow of air from land to a body of water

  13. Global Winds global winds – winds that blow steadily from specific directions over long distances The movement of air between the equator and the poles produces global winds. Coriolis Effect – the way Earth’s rotation makes winds curve

  14. - Winds Coriolis Effect As Earth rotates, the Coriolis effect turns winds in the Northern Hemisphere toward the right.

  15. Precipitation

  16. evaporation – the process by which water molecules in liquid water escape into the air as water vapor

  17. Convection process

  18. - Water in the Atmosphere How Clouds Form Clouds form when warm, moist air rises and cools. Water vapor condenses on tiny particles to form liquid water or ice crystals.

  19. precipitation – any form of water that falls from clouds and reaches Earth’s surface Common types of precipitation include: • Rain • Sleet • Freezing rain • Hail • Snow

  20. YOUR TURN… • Create your own 5 day forecast of Victoria, TX • Be CREATIVE and use the knowledge you just learned • It can be as HOT or as COLD as you’d like

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