A weak storm system is expected to bring rainy conditions Sunday night into Monday morning. Total rainfall amounts will generally be a quarter to half an inch with higher amounts possible in the foothills of San Luis Obispo County. Rain will start to taper off late Monday.
Latest rainfall amounts with storm system to affect the area tonight through Monday afternoon. Rainfall amounts expected to range between 0.25-0.50" for the #CentralCoast, a 0.10" or less likely south of Pt. Conception. #CAwx pic.twitter.com/fvxrslAngf
— NWS Los Angeles (@NWSLosAngeles) December 16, 2018
High surf conditions will continue across the Central Coast through Sunday. A long period of west-northwest swell will bring very large, damaging surf to the Central Coast through Tuesday morning. A high surf warning will be in place from 9 a.m. Sunday through 9 a.m. Tuesday for both San Luis Obispo and Santa Barbara Counties.
Dangerous breaking waves capable of capsizing small boats expected across Morro Bay harbor Sun night-Tue morning, with possible breaking waves into Ventura Harbor Mon-Tue. #LAWeather #cawx #SLOWeather
— NWS Los Angeles (@NWSLosAngeles) December 16, 2018
Breakers between 18 and 25 feet will be common across west and northwest facing beaches with local sets up to 30 feet possible.
Open water swells off the Central Coast are about 6ft now, 12ft off the Bay Area and 22ft off the Washington Coast. 8-12 foot breakers at the beachs with 18-25ft late tonight into Tuesday. Surf warning in place starting at 9pm tonight, currently an advisory. pic.twitter.com/qp7gvfstyS
— Dave Hovde (@tvdave) December 16, 2018
Some of this swell energy is expected to bring high surf conditions to west-facing beaches of LA, Ventura and southern Santa Barbara Counties but it won’t be as significant as the Central Coast.
Minor coastal flooding of low-lying areas will be possible Monday through Tuesday. Peak tides around 5 feet are expected in the early morning hours.
#beonkabyOut and about before the rain.Fiscalini Ranch, Cambria
Posted by Kris Allen on Sunday, December 16, 2018
High pressure builds up behind the storm, bringing warmer daytime temperatures and drying conditions.