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Mr. Fetch’s Earth Science Classroom

Fronts. A boundary between two air masses:. Mr. Fetch’s Earth Science Classroom. mP Maritime Polar. Moist, cold air to west coast of the US. mT Maritime Tropical. Moist, warm air to south east coast of the US. When air masses meet…. Mr. Fetch's Earth Science Class.

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Mr. Fetch’s Earth Science Classroom

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  1. Fronts A boundary between two air masses: Mr. Fetch’s Earth Science Classroom

  2. mPMaritime Polar Moist, cold air to west coast of the US. mTMaritime Tropical Moist, warm air to southeast coast of the US. When air masses meet… Mr. Fetch's Earth Science Class Mr. Fetch’s Earth Science Classroom

  3. Cold Fronts - When cold air hits warm air.- Warm air is forced violently up.- Rising air creates clouds, rain, and storms. (FRONTAL LIFTING) Steep Slope Mr. Fetch’s Earth Science Classroom

  4. Cold Fronts - When cold air hits warm air.- Warm air is forced violently up.- Rising air creates clouds, rain, and storms. (FRONTAL LIFTING) Mr. Fetch’s Earth Science Classroom

  5. Cold Fronts “COLD FRONT” … umm its gets colder , duh! Mr. Fetch’s Earth Science Classroom

  6. Cold Fronts Mr. Fetch's Earth Science Class Mr. Fetch’s Earth Science Classroom

  7. Warm Fronts - When warm hits cold air.- Warm air gently glides up over the cold air.- Rising air creates clouds and showers. (Less Violent). Gentle Slope Mr. Fetch’s Earth Science Classroom

  8. Warm Fronts “WARM FRONT”… right, it gets warmer, good. Mr. Fetch’s Earth Science Classroom

  9. Warm Front Mr. Fetch’s Earth Science Classroom

  10. The General Pattern Warm Sector Warm Sector Mr. Fetch’s Earth Science Classroom

  11. Stationary Front - When a warm or cold front stops moving.- Usually several days of clouds and showers. Mr. Fetch’s Earth Science Classroom

  12. The high’s and low’s of weather… LOW PRESSURE: cyclones • Low pressure systems form along fronts.(Unstable) • Low pressure systems are areas of rising air. (As along fronts) • The wind blows from HIGHS into LOWS. • Earth’s rotation causes the winds to rotate counter-clockwise around low pressure systems. L Mr. Fetch's Earth Science Class Mr. Fetch’s Earth Science Classroom

  13. The high’s and low’s of weather… LOW PRESSURE: • The rising air creates clouds and precipitation. • Low pressure systems created rainy, stormy weather. L Mr. Fetch's Earth Science Class Mr. Fetch’s Earth Science Classroom

  14. The high’s and low’s of weather… HIGH PRESSURE: anticyclones • High pressure systems are areas of sinking air. (Stable) • The wind blows out of HIGHS to LOWS. • Earth’s rotation causes the winds to rotate clockwise around high pressure systems. H Mr. Fetch's Earth Science Class Mr. Fetch’s Earth Science Classroom

  15. The high’s and low’s of weather… HIGH PRESSURE: • The sinking air stops clouds from forming. • No clouds = Sunny, clear weather conditions. H Mr. Fetch's Earth Science Class Mr. Fetch’s Earth Science Classroom

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