Weather

SLO County weather forecast for the week of May 9

John Lindsey
John Lindsey dmiddlecamp@thetribunenews.com

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

The Central Coast will be sandwiched between high pressure, situated over the Eastern Pacific, and the upper-level low-pressure system that produced the unsettled weather last week to the east.

This condition is expected to produce springlike weather as temperatures will warm back to near-normal levels, with highs in the upper 70s to low 80s across the inland valleys, low to mid-70s in the coastal valleys and 60s at the beaches. However, gentle to moderate (8- to 18-mph) northwesterly (onshore) winds will allow marine low clouds with areas of fog and drizzle to develop during the night and morning hours along the coastal regions.

By midweek, temperatures are forecast to return to above normal for the North County, with afternoon highs in the mid-80s Wednesday and Thursday, the warmest days of the week. Closer to the coast, marine low clouds with areas of fog and drizzle during the night and morning hours and fresh to strong (19- to 31-mph) northwesterly winds during afternoon hours will keep the coastal valleys in the mid-70s and the beaches in the 60s, except the southwesterly facing beaches of Cayucos, Avila Beach and Shell Beach, which is forecast to reach the low 70s.

The northwesterly (onshore) winds will further increase to strong to gale-force (25- to 38-mph) levels along the coastline Friday into Sunday, which will translate to lower temperatures throughout the Central Coast.

Surf report

Monday’s 3- to 5-foot northwesterly (290-degree, deep-water) swell (with an 8- to 13-second period) is expected to remain at this height and period along the San Luis Obispo County coastline into Tuesday, decreasing to 3 to 4 feet (with an 8- to 11-second period) on Wednesday into Thursday morning.

Increasing northwesterly winds will generate a 3- to 5-foot northwesterly (310-degree, deep-water) sea and swell (with a 5- to 12-second period) Thursday afternoon, increasing to 4 to 6 feet (with a 5- to 12-second period) on Friday into Saturday.

Combined with Monday, Tuesday and Wednesday’s northwesterly swell will be 1- to 2-foot Southern Hemisphere (200-degree, deep-water) swell (with a 15- to 17-second period).

Seawater temperatures

Seawater temperatures are expected to range between 54 and 58 degrees through Friday, decreasing to 52 to 56 degrees Saturday into Sunday.

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At PG&E, your safety is our first concern. Fog is expected to develop this week in the coastal regions during the night and morning hours. When driving in fog, reduce your speed and turn on your low-beam headlights, and your fog lights if you have them.

John Lindsey’s Weekly Forecast is special to The Tribune. Contact him at pgeweather@pge.com. Follow him on Twitter: @PGE_John.

This week’s temperatures

LOWS AND HIGHS, PASO ROBLES

MON

TUE

WED

THU

FRI

SAT

SUN

48 79

47 82

48 86

49 85

47 83

49 80

48 79

LOWS AND HIGHS, SLO AND COASTAL VALLEYS

MON

TUE

WED

THU

FRI

SAT

SUN

52 72

50 73

50 74

51 73

50 73

51 73

51 72

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