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More Weather...
Notes
| Question | Answer |
|---|---|
| Air masses move from areas of _____ pressure to areas of ____ pressure. | high to low |
| The ____ _____ is the deflection of wind due to the earth's rotation. | Coriolis effect |
| Air masses are classified according to their _. | source regions |
| _______ air masses tend to be moist. | maritime |
| _ air masses tend to be dry. | continental |
| The earth's rotation creates 3 major wind cells: | trade, prevailing, and polar |
| Trade winds blow from _ to _. | east; west |
| Prevailing ( _______) blow from _______ to ______. | westerlies; west to east |
| Polar ( ______ )blow __ to _. | easterlies; east to west |
| The USA is infuence by the ___ winds. | prevailing |
| USA is infuenced by _ air masses in _ different regions. | 7;7 |
| All continental air is _. | dry |
| All maritime is _. | moist |
| Tropical are _. | warm |
| Polar are _. | cold |
| Sign for Polar Canadian | cP |
| Polar Canadian moves _. | southeast |
| Polar Canadian brings what to the US. | brings cools masses to northern US in the summer and cold, dry air in the winter |
| Sign for Polar Pacific | mP |
| Polar Pacific brings what to the US. | very moist but extremely cold; makes Pacific coast snowy and rainy- this air mass loses its moisture as it moves across the Sierra Nevada and Rockies |
| Polar Atlantic Sign | mP |
| Polar Atlantic forms over _. | north Atlantic |
| Polar Atlantic affects US by _. | affects New England with cold cloudy weather in winter and foggy, cool summers |
| Sign for Tropical continental. | cT |
| Tropical continental forms over -. | Mexico affects the Southwest; brings clear, dry, hot weather |
| Tropical gulf sign. | mT |
| Describe Tropical gulf. | forms over Gulf of Mexico- brings warm moist air to the US southeast summers are moist and hot, winters are mild and cloudy |
| Sign of Tropical Atlantic. | mT |
| Describe the Tropical Atlantic. | the same as Tropical gulf |
| Sign of Tropical Pacific. | mT |
| Describe the Tropical Pacific. | forms over the warmer Pacific- barely reaches the Pacific coast except during an El Nino when the warm moist air drifts closer to the Cali |
| What happens when in the mid-west, the warm moist air of the tropical gulf meets the dry cold air of the Polar Canadian when two opposite air masses meet: | area is called tornado alley because of the violent storms that trigger tornadoes |
| Hurricanes which form in the tropics off the coast of Africa ride this path of the Tropical Atlantic bringing hurricanes to the ________. | southeastern USA |
| When air masses meet, ________ usually keep the air masses separated. | temperture differences |
| The air of a cool air mass is _, and does not mix with the less _ air of a warm air mass. | dense |
| indefinite boundry between two air masses | front |
| cold front symbol | |
| the weather front was named because of the _ of air where two air masses meet | battle |
| symbol points in the direction where -. | the air is moving |
| cold air rushes in and _ warm air | lifts |
| Warm moist air rises quickly to form _. | clouds |
| Storms along a cold front are _ but _. | short; violent |
| A squall line forms along a _. | cold front |
| long line of heavy thunderstorms that may advance just ahead of a fast moving cold front | squall line |
| warm front symbol | |
| Slope of rising air is _ so clouds form _ over several hours. | gradual, gradually |
| Clouds form _ _ of the appearing warm air. | far ahead |
| What precedes a warm front? | a distinct pattern of clouds |
| pattern of clouds: | cirrus- cirrostratus- altostratus- stratus- nimbostratus |
| boundary formed where a cold air mass overtakes and lifts a warm air mass | cold front |
| boundary formed where a warm air mass overtakes and rises above a cold air mass | warm front |
| boundary formed where two air masses meet and neither is displaced | stationary front |
| boundary formed where a fast moving cold air mass overtakes and lifts a warm air mass completely cutting it off from the ground | occluded front |
| boundary formed where cold polar air meets the warmer air of the middle lats | polar front |
| Cold air masses produce _ pressure areas. | high |
| Cold air is heavy, so it is associated with a _ pressured area. | high |
| Low pressure = | warm air |
| fast moving cold front that overtakes warm front completely off the ground and the cold front then meets the cold front that was ahead of the lifted warm front and 2 cold air fronts meet and hold the warm air horizontally above them | occluded front |
| when temperatures of 2 air masses is very similar, neither can displace the other and weather is like a warm front and typically stays the same | stationary front |
| cap of cold air that is over the earth's polar region | polar front |
| Polar front sinks toward the _ latitudes and circles the earth between _ to _ degrees latitude in both hemispheres | middle; 40-60 |
| In winter the air is colder and ___ and sinks farther _ toward the equator. | heavier; south |
| In winter the polar front averages as far south as ___ in the USA. | Florida |
| In summer, the air is not as _ so it retreats farther north. | dense |
| In summer, the cold front is typically _ of the Great Lakes. | north |
| high speed western river of air which separates the polar front from the warmer southern air | jet stream |
| The jet stream travels _______ than the surrounding air. | faster |
| cold front sign | |
| warm front sign | |
| occluded front sign | |
| stationary front sign | |
| ______ form within a front. | Waves |
| The waves within a front act like __ containing the air mass within its walls. | barrier |
| _ _ is a very large body of air which blows in a circular path around a warm moist low pressure area in thhe center | Wave cyclone |
| Winds circulate ______ in a ____ direction when in a wave cyclone. | inward; counter clockwise |
| Warm moist air trapped in the middle begins to rise, _ causes clouds and storms to occur. | condensation |
| So, low pressure areas are _ and _. | rainy and cloudy |
| anti means _ or _. | against or opposite |
| anti cyclones are waves of air moving in _ direction around a high pressure area. | an outward |
| High pressure consists of cold, _ air we cannot compress it. | dense |
| High pressure areas are associated with _ weather since sinking cold air has no _ factor. | fair; condensation |
| Anticyclone winds move in a _ direction. | clockwise |
| rates the intensity of a hurricane | Saffir - Simpson scale |
| Hurricanes develop in _. | doldrums at the equator |
| A hurricane is a wave cycle moving in a _ _ direction around a low pressure area. | counter clockwise |
| Hurricanes are areas of low pressure with rapid _. | evaporation |
| _ _ _ in the doldrums evaporate quickly. | Warm ocean water |
| Latent heat is produced by _ _ and _ gives the storm power. | rapid evaporation; condensation |
| As long as a hurricane is over water, _ intensifies the storm. | evaporation |
| Over land, the lack of moisture causes the storm to _ _. | die out |
| A hurricane affects a _ area. | large |
| The higher tides along the coast called _ _,causes the most damage during a hurricane. | storm surges |
| Hurricanes in the Atlantic were named by the natives of the Carribean from the word- | Hurakean which means evil spirit in the Myan language |
| Pacific hurricane | typhoon |
| smallest shortest most violent storm | tornado |
| measures the intensity of a tornado | Fujita scale |
| Tornado forms when a _. | thunderstorm meets high altitude horizontal winds which cause it to spin |
| The result of a tornado forming is _. | storm begins to rotate in the upper atmosphere |
| A tornado is a _ shaped cloud. | funnel |
| A tornado watch suggests that the weather conditions are _______. | favorable for a tornado. |
| A tornado warning is one that announces that a ________. | tornado has been spotted |
| When do El Ninos occur? | They occur when the easterly trade winds over the central and western pacific ocean weaken and that allows the wet moist air to go back eastward |
Created by:
surfergurl
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