Unformatted text preview: o Atmospheric low-pressure zone o Minimum distance from equator of + or – 5° • Room for storm to grow tall: o Absence of strong wind shear aloft Tropical cyclone formation regions: 30° North – 30° South Role of Coriolis Effect: Cyclonic circulation • Counter-clockwise in Northern hemisphere • Clockwise in Southern hemisphere Initiating a Hurricane • Wave or oscillation in airflow sends warm equatorial air into tropics. • Convergence and thermal effects warm, moist air rises, generating a cluster of small thunderstorms:...
View Full Document
- Spring '08
- Tropical cyclone, Gulf Stream, warm surface water, warm equatorial air, small density changes, Ocean-Atmosphere Interactions Hurricane