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42 Cards in this Set
- Front
- Back
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Which of these phenomena causes the least structural damage and loss of life during the passage of a tropical cyclone?
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low atmospheric pressure. Storm surge, flooding and rainfall are all hazards associated with hurricanes that cause structural damage and loss of life. The low center of atmospheric pressure does not cause either building damage or loss of life. |
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The power for tropical cyclones comes from:
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the condensation of warm, moist air. |
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When viewed from above, tropical cyclones rotate ____ in the southern hemisphere.
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clockwise |
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Extratropical cyclones typically form:
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at high latitudes, at the junction between the polar cells and the Ferrel cells
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Tropical cyclones tend to move:
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westward and poleward in both hemispheres. |
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Name four tools used to collect data for weather forecasting models.
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satellites moored buoys Doppler radar stations |
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______________ is the difference in wind speed or direction between the upper and lower atmosphere.
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Vertical wind shear |
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How would you classify a storm that has sustained wind speeds of 142 miles per hour?
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Category 4 hurricane |
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Hurricane Katrina had a small storm surge that contributed to the destructive nature of the storm. True or False.
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False, she had a VERY large storm surge. |
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The most powerful Atlantic hurricane ever measured was:
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Hurricane Wilma, which formed in the Atlantic on October 17, 2005, was the strongest hurricane ever measured with sustained winds of 295 km/hour. |
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True or False: In the last 35 years, the number of hurricanes occuring annually has increased significantly.
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False.Although the number of hurricanes in the last 35 years has remained relatively constant, there has been an increase in the abundance of category 4 and 5 hurricanes. |
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What is the definition of an air mass?
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A large mass of air with a distinct temperature, moisture content and stability that moves as one unit
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How would you label an air mass that forms over the center of Australia?
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The center of Australia is warm and dry. We would label it as cT.
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How would you label an air mass that forms over the central part of the Indian Ocean?
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The Indian Ocean is warm and is a source of moisture. We would label it as mT or E.
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A(n) _____________________ forms when a fast-moving cold air mass overtakes a slower moving warm air mass.
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cold front |
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A(n) _____________________ forms when a cold front overtakes a slower-moving warm front, forcing the warm front boundary up along the cold front boundary.
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occluded front |
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A(n) __________________ forms when a fast-moving warm air mass is forced up and over a slower moving cold air mass.
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warm front |
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The average ____________ front is twice as steep as the average _____________ front.
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cold, warm |
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What would you expect to see as a cold front approaches your home?
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A few cirrus clouds followed by large, dense cumulonimbus clouds and heavy precipitation.
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Mid-latitude cyclones move across the U.S. from the east coast towards the west coast. True or False?
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False. |
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Mid-latitude cyclones are ________________ pressure systems
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low
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Why are mid-latitude cyclones associated with the westerlies between 30° and 60° latitude?
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This is where moisture-rich air from the tropics collides with dry, cold air from the poles to create fronts.
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What happens during the Mature Stage of thunderstorm development?
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Updrafts and downdrafts both occur and are accompanied by heavy rain. |
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Tornadoes are very high pressure systems. True or False?
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False. Tornadoes are small, localized low pressure systems. |
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What prompts the formation of a mesocyclone?
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Air spinning along the horizontal axis is tilted vertically when it comes in contact with a strong thunderstorm updraft.
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Which is not a source of weather forecasting data?
A.) Weather Balloons B.) Satellites C.) Sonar Detection D.) Radar Detection |
C. Sonar Detection
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Continental Air Masses are: A) Cold and Moist B) Hot and Dry C) Cold and Dry D) Hot and Moist |
B. Hot and Dry
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Which of the following is NOT a stage in the life cycle of a Mid-Latitude Cyclone? A) Occlusion B) Maturity C) Stabilization D) Formation |
C. Stabilization
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What is the first stage in thunderstorm development?
A) Mature Stage B) Cumulus Stage C) Dissipating Stage D) Starting Stage |
B. Cumulus Stage
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What continent do tornadoes appear most frequently?
A) Africa B) Europe C) Asia D) North America |
D. North America.
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When a low pressure front and a high pressure front collide which front is pushed over the other? A) High pressure goes above the low pressure B) Low pressure goes above the high pressure C) Neither |
B. Low pressure goes above the high pressure.
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When a warm front catches up to a cold front it is called occlusion? True False |
False.
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Which of the following depicts the stages of development of a single-cell thunderstorm?
A)Formation Stage, Mature Stage, and Dissipating Stage B)Cumulus Stage, Occlusion Stage, Dissipating Stage C)Cumulus Stage, Mature Stage, and Dissipating Stage |
C. Cumulus stage, mature stage, and dissipating stage.
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What is the temperature of the air around a lightning charge? A)The same as the sun B)Hotter than the sun C)Cooler than the sun D)There is no temperature to the air around a lightning charge |
B. Hotter than the sun.
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Select the correct types of anticyclones:
A) Migrating and stable B) Atmospheric and permanent C) Permanent and migrating |
C. Permanent and migrating.
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Which of the following statements is true? A) Weather is the classification system for air masses B) Weather refers to the temperature, humidity, and windiness C) Weather is the measurement of air circulation around the globe |
B. Weather refers to the temperature, humidity, and windiness.
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what does a weather balloon sensor record?
A) Temperature B) Humidity C) Wind Speed D) All of the above |
D. All of the above.
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Are the ice particles in the upper part of the cloud
A) Positive B) Negative Is the lower part of the cloud A) Positive B) Negative |
A, then B.
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An Occluded Front is:
A) when air masses move parallel to each other B) when warm air mass displaces a cold air mass C) when cold air mass displaces warm air D) when a faster cold front overtakes a warm front |
D. when a faster cold front overtakes a warm front
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Bends in the Polar Front that can cause severe weather are called:
A) Squall lines B) Aleutian Lows C) Rossby waves D) Isohypses |
C. Rossby waves
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Air masses moving parallel to each other describes which type of front? A) cold front B) occluded front C) warm front D) stable front |
D. Stable front
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Put the stages of the Mid-Latitude Cyclone in order:
A) maturity, formation, occlusion B) occlusion, formation, maturity C) formation, maturity, occlusion |
D. Formation, maturity, occlusion
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