Here is this week’s weather forecast by PG&E meteorologist John Lindsey.
Gentle to moderate (8- to 18-mph) Santa Lucia (northeasterly) winds are expected to produce clear and warm weather Monday. Monday’s high temperatures will reach the mid- to high 70s along the beaches, the mid-80s in the coastal valleys and the low 90s in the North County.
The high-pressure ridge responsible for the clear and warm conditions is forecast to weaken Monday night.
Consequently, gentle to moderate (8- to 18-mph) west-northwesterly (onshore) winds will allow the marine layer, with low clouds and fog, to return along the coastline Monday night into Tuesday morning. This condition will mark the start of a gradual cooling trend for San Luis Obispo and Santa Barbara counties. In fact, temperatures along the beaches and coastal valleys may decrease by more than 10 degrees by Tuesday.
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A weak area of low pressure will slowly move toward the California coastline later Tuesday and into Wednesday. This system will spread variable clouds with areas of fog and mist along the coastline Tuesday night into Wednesday morning. Temperatures will continue to cool throughout the Central Coast. Another, but stronger low-pressure system and associated cold front is forecast to move over the Central Coast on Thursday night into Friday, with below-normal seasonal temperatures and a good chance of rain. This system will be followed by gale-force northwesterly winds and a chance of scattered rain showers Saturday into Sunday. Dry weather should return the following week.
Monday’s surf report
A 4- to 6-foot northwesterly swell (with a 15- to 17-second period) is forecast along our coastline Monday, decreasing to 3 to 5 feet (with a 12- to 14-second period) on Tuesday into Wednesday. A 4- to 6-foot northwesterly swell (with a 16- to 18-second period) is forecast along our coastline Thursday into Friday. Increasing northwesterly winds along the California coastline will generate 9- to 11-foot northwesterly sea and swell (with a 5- to 14-second period) this weekend.
Seawater temperatures will range between 54 and 57 degrees through Monday, increasing to 57 to 59 degrees Tuesday into Friday. These are near-record-breaking warm seawater temperatures for the month of April, which is historically one of the coolest months of the year with a normal temperature of 52.
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At PG&E, your safety is our first concern.
If it rains later this week, be especially careful. After a dry period, the first rain releases oil, grease and rubber dust that have accumulated on roadways, creating slippery conditions. Slow down and give yourself extra time to reach your destination. Driving too fast is the No. 1 cause of traffic accidents on wet days.
This week’s temperatures
LOWS AND HIGHS, PASO ROBLES
LOWS AND HIGHS, SLO AND COASTAL VALLEYS