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Pastimes : Hurricane and Severe Weather Tracking

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To: S. maltophilia who wrote (25418)3/26/2025 9:47:51 PM
From: Don Green  Read Replies (1) of 25993
 
I feel Hurricanes are like a spindle top I feel they are more affected by cross-winds than water temperatures and winds can't be predicted out very far in time wise

While hurricanes are driven primarily by warm ocean water that fuels their intense winds and rains, crosswinds—or wind shear—can indeed play a major role in their development and behavior. Wind shear refers to the change in wind speed or direction with height in the atmosphere. If wind shear is strong enough, it can disrupt the formation of hurricanes by tilting and deforming the storm's structure, preventing it from becoming organized. On the other hand, in a low-shear environment, hurricanes can grow stronger and more symmetrical.

Hurricanes are powered by a combination of warm ocean water, moist air, and favorable atmospheric conditions. Here are a few key elements that affect their formation and strength:

  1. Warm Water: Hurricanes draw their energy from warm ocean waters, typically above 26°C (79°F). The heat and moisture from the ocean fuel the storm, causing it to intensify.

  2. Low Wind Shear: As we mentioned earlier, minimal wind shear (differences in wind speed and direction at different altitudes) is essential. When wind shear is low, it allows the storm to stay organized and develop a strong, circular structure.

  3. Coriolis Effect: This is the phenomenon caused by Earth's rotation, which gives hurricanes their characteristic spin. It's also why they rotate counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.

  4. Outflow at the Top: Hurricanes need a strong outflow of air at high altitudes, which helps pull warm, moist air upward through the storm, sustaining its growth.

  5. High Humidity: A moist environment in the middle and lower parts of the atmosphere is critical for maintaining the storm's strength.

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