Hurricane Hilary is a major Category 4 hurricane that formed in the eastern Pacific Ocean on 16th August 2023.
- Hurricanes are categorized on the Saffir-Simpson Hurricane Wind Scale, which rates them on a scale of 1 to 5 based on wind speed.
- Hurricanes that reach category three or higher are classified as major hurricanes.
- It is the first tropical storm to hit Southern California since 1939.
- Hurricane Hilary is heading towards California because of a combination of factors, such as a high-pressure system over the western U.S., a low-pressure system over the eastern Pacific, and an El Niño event that warms the ocean water near the equator.
- These factors create a favorable environment for tropical cyclones to form and move northward along the coast of Mexico and Central America.
- However, most of these storms weaken or turn westward before reaching California, because of the cold water, cold currents, and unfavorable winds along the U.S. West Coast.
- Hilary is an exception because it has maintained its strength and followed a more northerly track than usual.