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PublishBrian Carter Modified over 8 years ago
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Topic: Air Masses &Fronts Key Terms: –Air Mass –Front
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Air mass: --- Source Region – ---
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Air Mass Cold & Dry
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Moisture terms: Dry –--- Moist
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Temp. terms Cold Formed in northern areas P – --- Extreme Cold Formed in polar areas A - --- Warm Formed in southern areas T - ---
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ESRT pg 13 = Dry & extremely Cold = Dry & Cold = Dry & Hot = Moist & Hot = Moist & Cold
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What type of air mass? --- --
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cP: -- mT: -- Most common Air masses in Eastern US
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Cold & Dry Warm & Moist cP mT
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cPmT
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Boundary where two different air masses meet. Front
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Cool Air Warm Air
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Warm air rises because it is less dense.
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A Cumulonimbus Cloud “Thunderhead”
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Rain
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20-50 miles Storms are very small, 20-50 miles or so and last only a brief time.
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Right now it’s nice and warm Gadzukes! It got cold!
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Cold Front --- --- Cold Air Warm Air Movement of air
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Warm Air Cool Air Frontal interface Warm is less dense and it likes to float!
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Warm Air Cool Air
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First come the Cirrus Which way is the weather coming from?
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It’s pretty cool now Such pretty cirrus clouds!
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Hmmm, the clouds are getting low The warm front gets closer…
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Clouds get lower and thicker
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Darn! It’s starting to drizzle.
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Lower and thicker then gentle rain for a long time.
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It’s much warmer now
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------ Warm Front Warm Air Cool Air
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--- STATIONARY FRONT
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Occluded Front --- <>
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Mid-latitude Cyclones
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Hurricanes Low pressure cyclones Wind Speeds 74 – 150+ MPH Over 350 Miles in Diameter Well defined EYE Most Damage from storm surge
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Tornados ---
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FQ: Label the fronts on the following diagrams
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