Here is this week’s weather forecast by PG&E meteorologist John Lindsey.
A weak upper-level ridge of high pressure will move over the Central Coast from the southwest. This condition will lead to faster clearing of the marine overcast Tuesday and warmer weather for the North County and coastal valleys, although temperatures at the beaches will be unchanged.
A low-pressure system will drop south from the Gulf of Alaska on Wednesday and will bring cooler conditions and extensive night and morning marine low clouds with areas of fog and drizzle. Along the coastline, strong to gale-force (25- to 38-mph) northwesterly winds will produce a greater amount of clearing during the afternoon hours starting Thursday and continuing through Sunday.
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Monday’s 3- to 5-foot northwesterly (305-degree, deep-water) sea and swell (with a 5- to 11-second period) will remain at this height and period through Wednesday. Strong to gale-force northwesterly winds will generate a 4- to 6-foot northwesterly (310-degree, deep-water) sea and swell (with a 5- to 11-second period) Thursday into Sunday.
Typhoon Atsani will curve northeast and become an extratropical storm. A 1- to 2-foot west-northwesterly (280-degree, deep-water) swell (with a 17- to 19-second period) will arrive along our coastline Wednesday, building to 1 to 3 feet (with a 16- to
18-second period) Thursday into Friday. A very long-period west-northwesterly swell from this system is expected to arrive Saturday into next Monday at 3 to 5 feet (with a 21- to 23-second period).
Tropical Storm Kilo is forecast to become a hurricane west of Hawaii and travel northward toward the Gulf of Alaska over the next 96 hours. This system has the potential to produce a westerly swell along our coastline by the beginning of September.
Seawater temperatures will range between 57 and 61 degrees through Monday, gradually increasing to 58 and 62 degrees Tuesday into Wednesday. Seawater temperatures are forecast to decrease to 57 and 59 degrees Thursday through Sunday.
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At PG&E, your safety is our first concern. Back-to-school season is in full effect. Remember to share the roads safely with school buses, pedestrians and bicyclists, and provide children with the necessary knowledge to stay safe at school.