SLO County weather forecast for the week of April 1

Special to The TribuneApril 1, 2013 

Here is this week’s weather forecast by PG&E meteorologist John Lindsey.

Weather report

A storm system spinning off the California coastline produced rain showers and a few thunderstorms Sunday, primarily north of Pismo Beach and west of Paso Robles. Precipitation amounts ranged from a few hundredths of an inch to nearly half an inch at San Simeon.

As the upper-level storm system moves east toward the Great Basin, high pressure will begin to build over California today.

Except for night and morning low clouds, fog and drizzle, this condition will bring fair and mild conditions back to the Central Coast through Wednesday. Another cold front may produce rain as far south as Cambria on Thursday morning. However, most of the rain is expected to remain in Northern California.

This cold front will set up a steep pressure gradient along the coastline, which will produce strong to gale-force (25- to 38-mph ) northwesterly winds, cooler temperatures and night and morning low clouds and fog starting late Thursday and continuing through Sunday.

Surf report

Today’s 4- to 6-foot westerly (270-degree deep-water) swell (with an 8- to 11-second period) will continue at this height and period through tonight.

A 3- to 5-foot northwesterly (300-degree deepwater) sea and swell (with a 5- to 14-second period) will develop along our coastline Tuesday and will continue at this height and period through Friday.

Increasing northwesterly winds along the Big Sur and San Luis Obispo County coastline combined with a long-period swell from a large 968-millibar storm near the Aleutian Islands will produce an 8- to 10-foot northwesterly (310-degree deep-water) sea and swell (with a 5- to 18-second period) Saturday into Sunday.

A 2- to 3-foot Southern Hemisphere (220-degree deep-water) swell (with an 18- to 20-second period ) will arrive Friday and remain at this height but with a shorter interval through Sunday.

Seawater temperatures

Seawater temperatures will range between 53 and 55 degrees through Thursday, decreasing Friday through Sunday.

John Lindsey’s Weekly Forecast is special to The Tribune. His Weather Watch column appears in the Local section on Sundays. Contact him at pgeweather@pge.com.

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