Sunday, August 29, 2010

[californiadisasters] La Niña helping chill our summer



La Niña helping chill our summer


San Luis Obispo Tribune

As most beach goers will tell you, this summer has seen numerous days of overcast and drizzly weather. Not only has the atmosphere been chilly, but the waters along the immediate coastline have remained downright cold, and the harbor seals and sea lions seem to want to spend more time on the rocks and beaches.

Stronger than normal northwesterly winds have produced a greater amount of upwelling along the coastline. Combined with a strengthening La Niña (colder than normal ocean water in the equatorial and eastern Pacific), that has produced below-normal sea water temperatures throughout this summer.

In fact, up to this August, the sea water temperature has averaged a record-breaking 53 degrees at the Diablo Canyon Nuclear Power Plant, the lowest since seawater temperature records started being kept in 1976. Normally, it averages about 57 degrees during August.

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