SLO County weather forecast for the week of Sept. 2

San Luis Obispo - The TribuneSeptember 1, 2013 

Here is this week’s weather forecast from PG&E meteorologist John Lindsey:

Yesterday’s subtropical moisture produced plenty of midlevel clouds and muggy conditions throughout the county. The “Pops by the Sea” concert at Avila Beach reached the 70s, but the subtropical moisture made it feel warmer.

A 1,002-millibar low-pressure system off the Northern California coast will produce increasing northwesterly winds along the shoreline and widespread cooling across the Central Coast. Additionally, thundershowers remain a possibility across much of the higher elevations of the Sierra Nevada and Tehachapi mountains through midweek.

Today’s maximum temperatures will range from the 60s along the coast to the low 80s in the coastal valleys and the low 90s across the North County. Little change is expected Tuesday.

High pressure will build off the San Luis Obispo County coastline Wednesday. This condition will allow the marine low clouds and fog to develop along shoreline and coastal valleys during night and morning hours. Temperatures will increase to above-normal levels by Wednesday and remain above normal through Sunday. However, no significant heat is anticipated.

Today’s surf report

Strong to gale-force (25- to 38-mph) afternoon northwesterly winds along the shoreline of San Luis Obispo County will produce a pattern of a 4- to 6- foot northwesterly (320-degree deep-water) sea and swell (with a 5- to 10-second period) during the afternoon hours, decreasing to 3 to 5 feet during the night and morning hours.

This pattern will start this afternoon and will continue through Friday. A 3- to 4-foot northwesterly (300-degree deep-water) swell (with a 7- to 11-second period) is forecast along the coast Saturday through Sunday.

Today’s 1- to 2-foot Southern Hemisphere (190-degree deep-water) swell (with a 12- to 14-second period) will continue at this height and period through Tuesday.

Seawater temperatures

Water temperatures will range between 54 and 58 degrees through today, decreasing to 52 and 56 degrees Tuesday, where they’ll remain through Friday.

John Lindsey’s Weekly Forecast is special to The Tribune. His Weather Watch column appears in the Local section Sundays. Email him at

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