complex spiral of thunderstorms

complex spiral of thunderstorms

Expand Tornadoes by Month. Select and examine each month.

Question 30: Which couple of months has the most tornadoes?

A. January/February

B. April/May

C. July August

D. August/September

Collapse and uncheck THUNDERSTORMS AND TORNADOS.

TROPICAL CYCLONES

Tropical cyclones have different names, depending on where they develop. In the Atlantic and eastern Pacific Oceans, they are called hurricanes. In the Indian Ocean they are known as cyclones and in the eastern Pacific they are identified as typhoons.

Tropical cyclones are storm systems of low pressure surrounded by a complex spiral of thunderstorms. Unlike mid-latitude cyclones, tropical cyclones do not form in regions with fronts. Rather, hurricanes develop where the atmosphere is relatively homogenous – but with a high pressure aloft to “cap” the low pressure storm. These storm systems rely on energy from warm water to develop, and as such, form in low latitudes.

Expand TROPICAL CYCLONES.

Expand Historical Hurricane Tracks.

Select Legend and then double-click and select Atlantic: 2000-2012 (Note: The imagery might take a few minutes to upload).

Question 31: Explain the general pathway of hurricanes in the Atlantic Ocean.

A. They form in different places, but generally end up off the coast of Africa

B. They travel east across the Atlantic before diverging

C. The pathways are random in direction

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D. They travel west across the Atlantic before diverging

Uncheck Atlantic: 2000-2012.

Double-click and select Eastern North Pacific 2000-2012 (Note: The imagery might take a few minutes to upload).

Question 32: Explain the general pathway of typhoons in the eastern Pacific Ocean.

A. They generally form off the coast of Mexico and head toward Hawai’i

B. They form in different places, but generally end up off the coast of Mexico

C. They travel east across the Pacific before diverging

D. The pathways are random in direction

Collapse and uncheck Historical Hurricane Tracks.

Expand and double-click Hurricane Katrina – 2005. To close the citation, click the X in the top right corner of the window.

Select Katrina Landfall Video. Watch the time lapse of Hurricane Katrina as it hits Louisiana.

Double-click and select Tracks and view the pathway of this hurricane from the Caribbean Sea to North America.

Select Hurricane.

Question 33: Geographically, where was Hurricane Katrina the strongest (an H5 –shown as a red circle)?

A. In the Atlantic Ocean

B. In the Caribbean sea

C. In the Gulf of Mexico

D. New Orleans, LA

Question 34: What happened to the Hurricane once it hit land?

A. It dissipated

B. It continued north at the same strength

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C. It continued north but with decreasing strength

D. It became a tropical storm

Collapse and uncheck Hurricane Katrina.

Double-click and select Hurricane Sandy.

Hurricane Sandy is considered the largest hurricane ever recorded in the Atlantic basin, measuring in at over 1100 miles (1800 km) in diameter.

Question 35: True or False: The storm system that hit New Jersey and the surrounding area on October 29 was a tropical cyclone.

A. True

B. False

Question 36: Explain your answer in the previous question.

A. Tropical cyclones do not travel that far north

B. Tropical cyclones do not occur this last in the year

C. Its inner core was less defined than that required of a tropical cyclone
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