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35 Cards in this Set
- Front
- Back
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define clouds
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a collection of small water droplets or ice crystals suspended in the air, which forms when the air is coold and condensation occurs.
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Cumulous Cloud
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a fluffy white cloud that has a flat bottom. Thunderstorms form from a cloud called cumulonimbus.
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Stratus Cloud
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formed in layers and can block out the sky and the sun. Fog is from the Nimbostratus Cloud.
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Cirrus Cloud
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Thin feathery white clouds at high altitudes.
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Clouds and Altitudes
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there are:
low clouds middle clouds high clouds |
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define precipitation
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water in solid or liquid form, that falls from the air to the earth.
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the most common form of precipitation
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rain
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sleet
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rain falls through freezing air
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snow
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air is so cold that it just turns into a crystal or forms a snowflake.
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2 conditions thunderstorms can form in
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1.warm moist air near earths surface
2.Unstable Atmosphere |
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define thunderstorm
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a usually brief, heavy storm that consists of rain,strong winds, lightning and thunder
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define thunder
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the sound caused by the rapid expansion of air along an electrical strike
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safest place and worst place to be in a thunderstorm
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1. Safest place is in a car or building
2.Worst place is in water |
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4 elements of a thunderstorm
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1. A source of Moisture;
2. A conditionally unstable atmosphere 3.A lifting or heating of the surface 4.Strong winds |
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What storn is a tornado part of?
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Thunderstorm
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How long do tornado storms last?
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Usually a half hour. Can be more.
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What season do tornadoes occur in?
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Spring and Summer
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Description of a tornado
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a round circular tube of fast moving winds.
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How is a tornado measured?
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A fujita scale.
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Where do tornadoes occur?
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Big ones happen in the midwest. Small ones happen anywhere.
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Tornado Valley
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In the midwest.
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How strong are winds in a blizzard?
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30 - 45 mph.
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Define Eye.
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Center of a hurricane with warm air, light winds.
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Where do hurricanes develope?
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Over warm water and by the Carribean Sea, North Atlantic and the Gulf of Mexico.
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How are hurricanes measured?
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Saffir Simpson Scale.
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Other names for hurricane.
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Typhoons, Tropical Cyclones and Willy - Willies.
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define storm surge
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an abnormal rise in the level of the sea along a coast caused by the onshore winds of a severe cyclone.
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What is the most powerful storm on earth?
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Hurricane.
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Which way do hurricanes turn?
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Clockwise.
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Where do floods occur?
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By
Rivers Dams Seas Lakes Ponds Oceans |
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What is the leading cause of weather related deaths?
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Floods.
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Where is the safest place to be?
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Higher Grounds
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Lightning is part of which severe weather?
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Thunderstorms
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define lightning
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Lightning is an electric discharge that occurs between a positively charged area and a negatively charged area, Lightning can happen between two clouds, between Earth and a cloud, or even between two parts of the same cloud.
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What starts forest fires?
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Lightning
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