Here is this week’s weather forecast by PG&E meteorologist John Lindsey.
An upper-level low-pressure system is forecast to continue to move away from the Central Coast. Monday morning’s marine low clouds, with pockets of mist and drizzle, should clear back to the coastline during the late-morning hours and from most of the beaches by the afternoon as fresh to strong (19 to 31 mph) northwesterly winds develop along the shoreline.
Monday’s high temperatures are projected to range from the mid-80s in the North County and low-70s in the coastal valleys. The beaches should remain in the 60s.
North to northeasterly (Santa Lucia) winds are forecast for Tuesday and Wednesday morning, followed by strong to gale-force northwesterly winds during the afternoon hours along the coastline, which will produce mostly clear skies, including at the beaches, on Tuesday into Wednesday. High temperatures over this period are projected to range from the mid-70s in the North County and the coastal valleys. The beaches should reach the high 60s, except for the southwesterly facing beaches of Cayucos, Avila Beach and Shell Beach, which should hit the mid-70s.
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Persistent northwesterly winds Thursday and Friday should allow the marine layer to develop during the night and morning hours with pockets of mist and drizzle. However, strong to gale-force northwesterly winds during the afternoon will produce mostly clear skies during the afternoon.
High pressure in the upper levels of the atmosphere is forecast to move over Central and Southern California next weekend into the first day of summer. This condition could produce the year’s first significant heat wave.
Monday’s 5- to 7-foot northwesterly (310-degree, deep-water) sea and swell (with a 5- to 10-second period) will increase to 7 to 9 feet (with a 5- to 9-second period) Tuesday into Wednesday. This northwesterly sea and swell will decrease to 4 to 6 feet with the same period on Thursday and remain at this height and period through Saturday.
A 1- to 3-foot Southern Hemisphere (200-degree, deep-water) swell (with an 18- to 22-second period) is forecast to arrive Tuesday, building to 3 to 4 feet (with a 16- to 18-second period) Wednesday into Friday.
Seawater temperatures are projected to range between 51 and 54 degrees through Monday, decreasing to 50 and 53 degrees Tuesday into Friday.
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This week’s Southern Hemisphere swell could produce strong rip currents along many of our beaches. If you’re caught in a rip current, swim out of the current in a direction parallel to the shoreline. When out of the current, swim at an angle — away from the current — toward shore.
John Lindsey’s Weekly Forecast is special to The Tribune. He is the PG&E Diablo Canyon meteorologist and media relations representative. Contact him at firstname.lastname@example.org. Follow him on Twitter: @PGE_John.
LOWS AND HIGHS, PASO ROBLES
LOWS AND HIGHS, SLO AND COASTAL VALLEYS