National Weather Service United States Department of Commerce

Critical Fire Weather Threats will Expand Across Central and Southern Coastal Mountains in California

Damaging offshore winds may down trees and power lines and fire weather threats across much of California. Critical fire weather threats are expected in the central and southern coastal ranges. Heavy snow is continuing in the Great Lakes, and will develop in the Central and Southern Rockies. High winds and heavy snow is occurring for parts of Alaska. Heavy rain in Hawaii will continue. Read More >

Tsunamis (Japanese term meaning wave in the harbor) are a threat in the Pacific Basin, which includes Hawai`i. This page contains informational links about tsunamis, and what action you should take if there is a threat of a tsunami.

LOCAL EARTHQUAKE - May cause you to fall or have difficulty standing. This is a natural tsunami warning. Initially, protect yourself from earthquake effects. When the shaking stops, leave the evacuation zones immediately.

URGENT TSUNAMI WARNING - Possible tsunami generated by a significant earthquake in local waters. Sirens will sound. Turn on radio. If an urgent tsunami warning is announced, leave the evacuation zones immediately.

TSUNAMI WATCH - Significant distant earthquake has occurred. Tsunami approach not confirmed but possible. No siren sounding. Prepare for possible upgradeto tsunami warning.

TSUNAMI WARNING - Tsunami approach confirmed. Sirens will sound. Monitor radio. Be prepared to evacuate when advised/ordered by civil defense.

TSUNAMI EVACUATION - Sirens will sound. Turn on radio. Those who are in tsunami evacuation zones must begin evacuation when the evacuation advisory/order is issued by civil defense.

For more information:


In Hawai`i, the Pacific Tsunami Warning Center (PTWC) has responsibility for tsunami monitoring, and the subsequent issuance of any necessary watches or warnings. Hawai`i is also home to the International Tsunami Information Center (ITIC), which provides a wealth of information about tsunamis.

Travel Times Map for Hawaii
from the International Tsunami Information Center