The Pacific Tsunami Warning Center map indicates a 'tsunami forecast model' from Japan's earthquake on Friday, March 11, 2011.
CNN notes the National Weather Service is warning 50 countries and territories against a tsunami first triggered off Japan today by an enormous earthquake. You can follow the NWS's Honolulu agency on Facebook. The agency says "final pre-tsunami" has been issued and they'll "update as the tsunami tracks through the state".
The Honolulu Star-Advertiser says a 6.5 foot tsunami is expected to strike Kauai imminently.