Sunday, February 28, 2010

Hurrianes & Tornadoes



Hurricanes and tornadoes are very dangerous. They can cause a lot of damage and death. The table shows us some features of hurricanes and tornadoes. In this essay, I am going to talk about these features.

First, the minimum hurricane speed is 74 mph while the maximum is 200 mph. On the other hand, the tornadoes minimum speed is 40 mph while the maximum is 300 mph. The classification scale shows us that hurricanes are measured on the Saffer-Simpson C1-C5 while tornadoes are measured on the Fujita F0-F5 scale. When a hurricane occurs, it stays about 1 week. In contrast to tornadoes which just last a few minutes, some up to a few hours. The average width of hurricane is about 300 miles while the tornadoes’ maximum width is 1.5 km. the average number of hurricanes per year is very high compared with tornadoes. The hurricanes can be predicted 2-3 days in advance and sometimes 6-10 hours while the tornadoes only 20 minutes or less in advance. Hurricanes usually start over warm oceans like Hurricane Katrina while tornadoes start over land.

In conclusion, hurricanes are more dangerous than tornadoes because of their duration and width and they can cause a lot of damage.

202 words

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