What does a tsunami look like when it reaches shore?
Normally, a tsunami appears as a rapidly advancing or receding tide. It some cases a bore (wall of water) or series of breaking waves may form. How is a tsunami different from a wind-generated wave? Wind-generated waves usually have periods (time between crests) between 5 and 15 seconds. Tsunami periods normally range from 5 to 60 minutes. Wind-generated waves break as they shoal and lose energy offshore.Tsunamis act more like a flooding wave.A twenty foot tsunami is a twenty foot rise in sea level. What are the West Coast and Alaska Tsunami Warning Center’s (WC/ATWC) responsibilities? The main mission of the WC/ATWC is to help protect life and property from tsunami hazard by providing tsunami information and warning messages to its area-of-responsibility (AOR). The WC/ATWC AOR is the U.S. West, Alaskan, Atlantic, Puerto Rico, Virgin Islands, and Gulf of Mexico coasts as well as the east and west coasts of Canada. Develop new processes and techniques to improve response times, forecast
