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 Meteorologists use the data to predict when and where the storm will hit land. T ese weather scientists also can predict its strength. T eir forecasts let people prepare and stay safe. As Hailes finishes his practice flight, he


knows he could face a real monster storm any time. In the Atlantic Ocean, hurricane season started June 1. By the end of November, experts predict there will be up to eight hurricanes.


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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