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4. When spinning winds top 119 kilometers (74 miles)


per hour, it’s a hurricane.


__________ ________


3. The rush of rising air makes winds spin.


2. Warm water evaporates. This warm, moist air rises.


Thunderstorms form.


1. The ocean warms to 26° Celsius (80° Fahrenheit).


Early Warning Weather scientists use this data to predict where a storm will go. T e data can also help them predict how strong a storm will be. T is helps people prepare for the


spinning storm. It also gives them time to get out of harm’s way.


A storm’s name depends on where in the world it forms. • Atlantic and eastern Pacifi c oceans: hurricane


• Indian Ocean: cyclone • western Pacifi c Ocean: typhoon


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