Maps: Pacific Tsunami Forecasting

The massive early-morning quake off the coast of Chile has dozens of Pacific-bordering nations on alert as the shifting of plates are causing tsunami conditions in the water. The West Coast and Alaska Tsunami Warning Center issued an advisory for the North American West Coast, though it is important to note that while the effects can be dangerous, they are not expected to be devastating here:

Tsunami Advisory means that a tsunami capable of producing strong currents or waves dangerous to persons in or very near the water is imminent or 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.
Wave heights in Southern California will most likely be in the 2-4 foot range, and last 30 minutes to 2 hours. In a live press conference, President Barack Obama spoke of America's readiness to aid Chile in the relief and recovery if needed, and for residents in areas of the U.S. to heed orders issued by local authorities regarding tsunami activity.

Here are some different maps from the National Oceanic and Atmospheric Administration (NOAA) that illustrate the scope of this global event.

Previously
Tsunami Advisory Issued for California Coast After Chile Quake
Series of Small Earthquakes Strike Central California as Huge Quakes Rock Japan and Chile