NOAA, partners to issue long-term sea level projections for U.S.

Californians living on the coast may be used to seeing so-called "King Tides," a regular phenomenon where high tides are higher than normal on certain days of the year. Shown here: Embarcadero Waterfront in San Francisco, California

Californians living on the coast may be used to seeing so-called "King Tides," a regular phenomenon where high tides are higher than normal on certain days of the year. Shown here: Embarcadero Waterfront in San Francisco, California (Image credit: NOAA)