A storm fixing to drop a heavy dose of rain will hit San Luis Obispo County on Friday evening and continue through the weekend, PG&E meteorologist John Lindsey says.
A series of low-pressure systems and their fronts will mix with a huge plume of subtropical moisture stretching to Hawaii to produce southerly winds and showers.
Rain will start Friday evening and continue through Monday morning, Lindsey forecasts.
“It will be stormy, but it won’t be as windy as it was in the Dec. 11 event that hit us,” he said. “This rain sure could help us get back to the normal amount of rainfall for the year.”
Lindsey said the county has gotten nearly 9 inches of precipitation so far this rainy season, but the average is about 13.5 inches for this time of year.
The first cold front on Friday will bring strong to gale-force winds of 25 to 38 mph.
Westerly wave swells of 4 to 6 feet on Friday morning will increase to 12 to 14 feet by Friday night and into Saturday morning.
The largest waves will hit the Central Coast on Monday with a 13- to 15-foot westerly swell predicted for Monday, decreasing to 9 to 11 feet by Tuesday.
The Santa Lucia mountains above San Simeon, Cambria and Cayucos could receive as much as 6 inches of rainfall with totals of 1.5 to 4 inches in lower areas of the county.
Northern California locations, particularly north of the Golden Gate Bridge in San Francisco, could see as much as 12 inches of rain in this storm.
Lindsey said he expects that February, March and April will bring more rainfall.
The National Oceanic and Atmospheric Administration’s Center for Weather and Climate Prediction is forecasting above average long-term prospects for precipitation.
“It looks like a borderline El Niño year,” Lindsey said. “It’s a weak El Niño with higher-than-average long-range forecasts of rain.”