DESCRIPTION

…TSUNAMI WARNING IS IN EFFECT FOR COASTAL DEL NORTE…

…TSUNAMI ADVISORY IS IN EFFECT FOR THE HUMBOLDT AND MENDOCINO COAST…

* UPDATES… The Humboldt County Coast is no longer in a Warning. Tsunami wave impacts are ongoing on the coast but may be starting to lessen.

* LOCAL IMPACTS… A tsunami capable of producing strong currents that may be hazardous to swimmers, boats, and coastal structures is expected. Widespread inundation is NOT expected.

* RECOMMENDED ACTIONS… If you are located in this coastal area, move off the beach and out of harbors and marinas. Do not go to the coast to watch the tsunami. Be alert to instructions from your local emergency officials

* FORECAST TSUNAMI START TIMES…

Tsunamis often arrive as a series of waves or surges which could be dangerous for many hours after the first wave arrival. The first tsunami wave or surge may not be the highest in the series.

* FORECAST TSUNAMI DURATION… Fort Bragg9 Hours Crescent City30 Hours

* FORECAST PEAK TSUNAMI WAVE HEIGHTS… Fort Bragg 0.7 to 1.4 ft Crescent City 2.7 to 5.0 ft Humboldt Bay Around 1 ft.

* OBSERVED TSUNAMI WAVE HEIGHTS FROM EARLIER… Tsunami waves are startingto arrive on the West Coast. Up to 3.6 ft observed in Crescent City Up to 1.2 ft observed in Humboldt Bay Up to 3.0 ft observed in Arena Cove

* PRELIMINARY EARTHQUAKE INFORMATION… An earthquake occurred with a preliminary magnitude of 8.8.

* TIDE INFORMATION… Humboldt Bay North Spit…Low tides of 1.8 ft at 1008 PM PDT on Jul 30, and 2.1 ft at 935 AM PDT on Jul 31. High tides of 6.2 ft at 343 PM PDT on Jul 30, and 4.7 ft at 358 AM PDT on Jul 31. Crescent City Harbor…Low tides of 1.8 ft at 1002 PM PDT on Jul 30, and 2.1 ft at 927 AM PDT on Jul 31. High tides of 6.3 ft at 329 PM PDT on Jul 30, and 4.7 ft at 349 AM PDT on Jul 31.

This product will be updated as new information becomes available. Stay tuned to your local news source and NOAA weather radio for further information and updates.