What causes hurricanes to increase in strength

Lower central air pressure
Slower winds speed
Moving onto land
Cooler water temperature

There are several factors that can cause hurricanes to increase in strength:

1. Lower central air pressure: When the central air pressure of a hurricane decreases, it allows the storm to intensify and develop stronger winds.

2. Slower wind speed: Hurricanes that move slowly across the ocean can have more time to draw energy from the warm ocean waters, allowing them to strengthen.

3. Moving onto land: While hurricanes typically weaken when they move onto land due to the lack of warm water to fuel them, they can sometimes strengthen if they move back over open water or if the land interaction is minimal.

4. Cooler water temperature: Hurricanes need warm ocean water to sustain and intensify their strength. Cooler water temperatures can weaken a hurricane or prevent it from strengthening.