What is the key variable for hurricane development?Group of answer choicesWarm tropical seawaterHigh wind speedsStrong ocean currentsAn area of strong high-pressure

11.  What causes the formation of low-pressure area that can lead to the development of a typhoon?*cold and dry airvery low moisture or humiditycold waters surrounded by warm conditionswarm waters surrounded by cold conditions12.  A thunderstorm cloud is a __________.*cumulusnimbostratuscumulonimbusstratus13.  What happens to tropical cyclones when they make a landfall?*they lose strengththey increase in strengththe air rotates in a different directionthe air over the land warms quickly14.  The center of a tropical storm where subsidence occurs and often clearing occurs is termed the:*eyenucleusatomsbrain15.  What is strongest portion of a hurricane including strong winds and heavy rain?*eyeeye wallfeeder bandswall cloudBackNextClear form

1. What do you call this area where North and South easterly trade winds converge and most tropical cyclone occurs?*EquatorIntertropical Convergence ZoneMeridiansPoles2.  What is the category of tropical cyclone when it reaches the maximum sustained winds of 58 km/hr?typhoontropical stormsuper typhoontropical depression3.  Which factor may  weaken the strength of a typhoon?*Wind speedWind directionAmount of moistureTemperature at 26.5 degrees Celcius4.  Which of the following minimum temperatures does a tropical cyclones form?*27 C25 C20 C15 C5.  Which of the following words describes a region of “warm and humid”?*DryPolarTropicalTemperate

Some scientists blame _______ for an increase in the strength of hurricanes.A.warmer landmassesB.cooler tropical oceansC.warmer tropical oceansSUBMITarrow_backPREVIOUS

Hurricanes that affect the US usually form in the Northern Atlantic Ocean. As solar radiation warms the ocean surface evaporation increases. The warmer the temperatures, the greater the rate of evaporation. As you may recall, warm, moist air rises, expands and cools to the dew point and clouds form. Energy and water vapor continue to be added to the atmosphere. This creates a low pressure area, known as a tropical depression. If winds are sustained above 39 miles per hour it is considered a tropical storm. If the winds are over 74 miles per hour it becomes a hurricane. Most hurricanes occur in late summer early autumn because this is when the ocean surface is warmest. They are the most destructive storms. High winds, storm surges (ocean water pushed onto the coast) and major flooding occur. One more thing that adds to the hurricane Category Winds 1 74-95 mph 2 96-110 mph 3 111-130 mph 4 131-155 mph 5 > 155 mph disaster is that tornados can form. A hurricane is sometimes referred to as a cyclone because it is such a large area of low pressure. A typhoon is the same as a hurricane, however forms over the Northwest Pacific Ocean. Hurricanes are fairly easy to predict because advancements in weather radar and satellite technology allows meteorologists to watch them develop and keep track of their path. Where exactly they hit land is not full proof. If a hurricane appears to pose a threat to your area within 48 hours, a hurricane watch is issued. A warning is issued if conditions are expected within 36 hours. When you are ordered to evacuate LEAVE THE AREA. Need to know: 1. Where do hurricanes form? 2. How do clouds form in a hurricane? 3. What is added to the atmosphere to fuel the development of a hurricane? 4. What is a tropical depression? 5. What is the difference between a tropical storm and a hurricane? 6. What is the difference between a sustained wind and a wind gust? 7. How fast are sustained winds in a category 5 hurricane?

Tropical cyclone Super typhoon Eye Wind speed Tropical depression Wind shear Cumulonimbus Trade winds Cyclogenesis ITCZIs a fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in temperature Nearly constant easterly winds that dominate most of the tropics and subtropics throughout the world, blowing mainly from the northeast in the Northern Hemisphere, and from the southeast in the Southern Hemisphere Means it exceeds the maximum sustained winds of 115 mph A general term for warm weather storm systems that occur over tropical waters The area of lowest atmospheric pressure, with diameter which may span 20 - 65 km wide, winds are weak, the temperature is warm, and the sky is clear-everything is calm Is a tropical cyclone with maximum sustained wind speed of less 39km/hr Wind velocity changes from point to point in a given direction A region known from its lowest surface pressure, where the converging air ascends, condenses, and strengthens into sufficiently strong tropical disturbances The process of development of a tropical cyclone A cloud of a class indicative of thunderstorm conditions, characterized by large, dense towers that often reach altitudes Is a fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in temperature Nearly constant easterly winds that dominate most of the tropics and subtropics throughout the world, blowing mainly from the northeast in the Northern Hemisphere, and from the southeast in the Southern Hemisphere Means it exceeds the maximum sustained winds of 115 mph A general term for warm weather storm systems that occur over tropical waters The area of lowest atmospheric pressure, with diameter which may span 20 - 65 km wide, winds are weak, the temperature is warm, and the sky is clear-everything is calm Is a tropical cyclone with maximum sustained wind speed of less 39km/hr Wind velocity changes from point to point in a given direction A region known from its lowest surface pressure, where the converging air ascends, condenses, and strengthens into sufficiently strong tropical disturbances The process of development of a tropical cyclone A cloud of a class indicative of thunderstorm conditions, characterized by large, dense towers that often reach altitudes