The destructive 1982-83 El Niño, then the strongest on record, eroded cliffs, leaving homes hanging precariously over the edges. A coastal scientist explains the escalating risks.

Tropical storms rarely survive in the cool water off California, but waves from storms far to the south can still damaged coastal areas. And flooding rain can sweep in.

Storms big and small can produce a lot of rain. What matters most is how fast they’re moving, as an atmospheric scientist and educator explains.

Several factors make for high water levels, and they conspired to worsen the storm surge that flooded coastal areas from North Carolina to New York.

The Hurricane Hunters are specialist aircrews that fly into tropical cyclones to collect vital measurements.

The crossing was submerged when the valley was flooded in the late 1970s to create the reservoir.