Tsunami Message Number 10
NWS West Coast/Alaska Tsunami Warning Center Palmer AK
6:40 AM PST Friday March 11, 2011
The advisory and warning regions remain the same. New observations are listed below.
The Tsunami Warning continues in effect for the coastal areas of California and Oregon from Point Conception California to the Oregon - Washington border.
The Tsunami Warning continues in effect for the coastal areas of Alaska from Amchitka Pass Alaska/125 miles W of Adak to Attu Alaska.
The Tsunami Advisory continues in effect for the coastal areas of California from the California - Mexico border to Point Conception California.
The Tsunami Advisory continues in effect for the coastal areas of Washington - British Columbia and Alaska from the Oregon - Washington border to Amchitka Pass Alaska/125 miles W of Adak
Recommended Actions
A Tsunami has been generated which is expected to cause damage to the warning and/or advisory regions listed in the headline. Persons in low-lying coastal areas should be alert to instructions from their local emergency officials. Evacuations are only ordered by emergency response agencies. - Persons in Tsunami Warning coastal areas should move inland to higher ground. - Persons in Tsunami Advisory coastaal areas should move out of the water... Off the beach and out of harbors and marinas.
Measurements Or Reports Of Tsunami Activiy
LOCATION LAT LON TIME AMPL
------------------------ ----- ------ ------- -----------
Shemya AK: 05.1FT/01.56M
Akak AK: 01.8FT/00.56M
Midway IS. USA: 05.1FT/01.55M
Wake IS. USA: 01.7FT/00.52M
Dutch Harbor AK: 01.6FT/00.48M
Naha Japan: 01.6FT/00.49M
Nikolski AK: 01.9FT/00.59M
French Frigate Shoals: 01.8FT/00.56M
St Paul IS. AK: 02.0FT/00.61M
Sand Point AK: 01.1FT/00.35M
Nawiliwili Kauai HI: 02.5FT/00.76M
Barbers Point HI: 02.3FT/00.70M
Honolulu Oahu HI: 02.2FT/00.66M
Kahului Maui HI: 05.7FT/01.74M
Hilo HI: 03.4FT/01.04M
Values Are Given In Both Meters (M) And Feet (FT).
Tsunami amplitutes are expected to peak two to three hours after initial arrival along the North American coast. Forecast Tsunami amplitures are available on the WCATWC website http://wcatwc.arh.noaa.gov/. The Tsunami continues to impact the Hawaiian Islands. The observations are from these initial waves and may not represent the highest impact.
Tsunami Warning mean that a Tsunami with significant widespread inundation is imminent or expected. Warnings indicate that widespread dangerous coastal flooding accompanied by powerful currents is possible and my continue for several hours after the initial wave arrival.
Tsunami Advisories mean that a Tsunami capable of producing strong currents or waves dangerous to persons in or very near the water is expected. Significant widespread inundation is not expected for areas under an advisory. Currents may be hazardous to swimmers.. boats... and coastal structures and may continue for several hours after the initial wave arrival.
Pacific coastal regions outside California, Oregon, Washington, British Columbia and Alaska should refer tothe Pacific Tsunami Warning Center messages for information on this event at http://ptwc.weather.gov/
Source: NWS
