Tsunami warnings, watches, and advisories are relatively rare products for any given U.S. location. U.S.
west coast locations have experienced four warnings in the last 45 years (1986, 1994, 2005, 2011) while
the state of Hawaii has experienced four warnings in the same time period (1986, 1994, 2010, 2011).
Advisories and watches historically have been slightly more common. U.S. East, Gulf of Mexico, and
Puerto Rico/Virgin Islands coasts have never been put in tsunami warning, watch, or advisory status
since service started for these regions in 2005. Since these products are received so rarely, they must be
clear and concise in content. Graphical products must support textual content and provide straightforward