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| Lasts 5-7 days and they bring severe weather. A cold wedge pushes beneath teh warm mound. |
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| Mound of warm air crawls up a wedge of cooler air. Lasts 8-14 days and brings milder, bad weather. |
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| Describe an occluded front. |
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| Weaker version of a cold front. Cold wedge forcing under a warm mound of air, then the wedge drags the warm air along. Causes less severe bad weather. |
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| An area of calm surface winds. |
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| What are horse latitudes? |
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| At 30 degrees North and South latitude sinking air gives you another area of calm surface winds. |
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| What is the coriolis effect? |
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| The apparent shift in the path of wind moving over the surface due to Earth's rotation. |
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| Describe how a land breeze forms. |
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| The water is warmer than land during the night and when the heat rises from the water the cooler air from the land takes it's place. |
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| Describe how a sea breeze forms. |
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| During the day the land is warmer and when the heat rises from the land the cooler air from the water takes its place. |
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| ____________________________ |
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| ____________________________ |
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| ____________________________ |
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| ____________________________ |
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| Raindrops fall to Earth when they get too heavy. Faster winds=larger drops. |
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| Frozen raindrop. Randrop freezed into a pellet of ice before it lands. |
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| Raindrop freezes after it hits. |
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| A raindrop falls to the Earth and freezes but before it hits the surface an updraft carries it back up. More accumaltes on it and it grows bigger and bigger until ti get heavy enough to fall to the Earth. |
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| Falti, six-sided ice crystal. Frozen water vapor. (Cloud droplets) |
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| Tiny droplet of water that makes clouds. ((1 million times smaller than a raindrop)) |
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| Large mounds of air that have the same temperature and humidity throughout. |
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| Describe a continental tropical air mass and the weather it brings. |
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| Form over hot areas on land. Contains warm, dry, air. Summer: not hot, not dry weather. Winter: Warm and dry weather. |
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| Describe a continental polar air mass and the weather it brings. |
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| Forms over cold areas of the land. Contains cool, dry, air. Summer: Cool+ Dray Winter: Bitter Cold |
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| Describe a maritime tropical air mass and the weather it brings. |
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| Form over warm oceans. Contain wairm, moist air. |
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| Describe a maritime polar air mass adn the weather it brings. |
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| Form over cool oceans. Contain cool, moist air. |
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1. Negative charges move down.
2. Pos. charges move up.
3. Contact made.
4. Pos. charges move up!
5. LIGHTNING all the negative charges move towards the ground.
6. Repeats |
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| A boundary between air masses which contain different air. |
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| Winds found between the equator and 30 degrees latitude. They blow east. |
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| What type of air mass affect the State of Maine? |
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| Lightning burns a hole through the sky and the air that gets sucked back in like a vaccuum make a loud noise. |
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| Form of cloud to cloud lightning that causes spiderwebs in the sky. |
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| What type of weather is associated with low pressure systems? |
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| What type of weather is associated with high pressure systems? |
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| Describe a stationary front. |
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| It almost doesn't move and it has any type of weather. |
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| What are the prevailing westerlies? |
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| Winds that blow from the southwest to northeast in the zone between 30 degrees and 60 degrees latitude |
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| What are the polar easterlies? |
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| Cold dry air masses that descend to the eart at the poles and blow outwardly. |
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