SLO County weather forecast for the week of Jan. 6

pgeweather@pge.comJanuary 6, 2014 

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

Weather report

A 1,040-millibar area of high pressure over the Great Basin will continue to produce night and morning Santa Lucia (northeasterly) winds. These winds will give mostly clear skies with well-above-normal afternoon temperatures. In fact, daytime temperatures will be 10 to 15 degrees above normal, and there will be near-record temperatures for coastal valley locations under the influence of these offshore winds. 

Temperatures today will range from the low 70s in the North County and beaches to the high 70s in the coastal valleys. Tonight will be clear with over-night minimums mostly in the high 30s and low 40s with the coldest spots in the North County in the low 30s. 

A transition day comes Tuesday as a series of weather systems will approach Northern California and slide through the Central Coast during the week with increasing northwesterly wind, areas of marine low clouds and cooler temperatures. The first system Tuesday is not expected to produce rain. However, the next system, expected Thursday could produce some sprinkles/light rain showers. This cold front will drop snow levels to about 4,000 and 5,000 feet with a decent shot of snow accumulation in the Sierra Nevada. Temperatures around San Luis Obispo County will cool to near-normal by Thursday before warming to above-normal again Friday and Saturday with gusty Santa Lucia winds. 

Today’s surf report

Today’s 2- to 4-foot northwesterly (295-degree, deep-water) swell (with an 8- to 17-second period) will continue at this height and period through Tuesday morning. 

Increasing northwesterly winds along the California coastline will generate a 3- to 5-foot northwesterly (310-degree, deep-water) sea and swell (with a 4- to 14-second period) Tuesday afternoon through Wednesday morning.  

This northwesterly (310-degree, deep-water) sea and swell will build to 5 to 7 feet (with a 4- to 17-second period) Wednesday afternoon through Thursday, further increasing to 6 to 8 feet (with a 5- to 15-second period) Thursday into Saturday.

Seawater temperatures 

Seawater temperatures will range between 55 and 57 degrees through Tuesday, decreasing Wednesday through Friday.

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

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