A hurricane is a very powerful storm. It is a cyclonic storm, which means that it has a circular pattern within the hurricane within the hurricane. The name hurricane refers to storms that startover the Atlantic Ocean or eastern Pacific Ocean. For example, they are called typhoons in the northwest Pacific. They are called cyclones in most of the rest of the world. They all have wind speeds that are mostly more than 75 miles per hour. The winds move in a circular pattern. The central point around which the storm moves is called the eye of the storm. These storms usually develop in warm, tropical oceans. They take their energy from the seawater that evaporates. Hurricanes weaken as they move over land because they depend on the warm seas to continue to supply energy as the storm moves. Land has much greater changes in elevation and surface. Hurricanes lose power when the winds meet the land's surface and cause friction. For my main idea, I put Hurricanes are powerful storms that weaken over land. How could I improve this?

Hurricanes: The Big, Bad Storms that Lose their Mojo on Land!

To improve your main idea, you could consider incorporating the key points mentioned in the passage. Here is a revised version:

"Hurricanes are highly destructive and powerful cyclonic storms that originate over the Atlantic Ocean or eastern Pacific Ocean, known as typhoons in the northwest Pacific and cyclones in most other regions. With wind speeds typically exceeding 75 miles per hour, hurricanes form a circular pattern with a distinct eye at their center. These storms derive their energy from warm tropical ocean waters through evaporation. However, as hurricanes encounter land, they gradually weaken due to friction caused by the varied elevation and surface. Therefore, a more comprehensive main idea could be: Hurricanes are powerful cyclonic storms that derive their energy from warm ocean waters but gradually weaken as they encounter land."

To improve your main idea, you can provide a more specific focus on the factors that contribute to a hurricane's weakening over land. Here's a revised version:

"Hurricanes are extremely powerful cyclonic storms that derive their strength from warm, tropical oceans. However, once they reach land, various factors, such as the absence of their energy source (seawater evaporation) and the interaction with the land's surface, cause hurricanes to weaken significantly."

This revised main idea captures the key points about how hurricanes lose power over land due to the absence of warm seawater as an energy source and the effects of friction with the land's surface.