This week’s weather forecast by PG&E meteorologist John Lindsey:
Fog and low clouds will persist along the coastline for much of the day, with some afternoon clearing. It will clear from the coastal valleys later this morning, with highs reaching the mid-70s. The North County will be hot, with an expected high of 95 degrees.
The upper-level ridge of high pressure responsible for the high inland temperatures will begin to break down tonight and move westward as a 1,007-millibar low-pressure system slides from the Pacific Northwest into the Great Basin on Tuesday. This will result in gentle to moderate (8- to 18-mph) variable winds along the coastline and lower daytime temperatures. Maximum temperatures will drop into the mid-70s in the coastal valleys and the upper 80s in the North County — still above-normal for this time of year. The beaches will remain mostly overcast, with highs in the low 60s.
Little change in this pattern is expected through Wednesday.
Temperatures will rise throughout the day on Thursday through Friday as the ridge of high pressure builds in from the west. Coastal locations will see more sunshine, especially along the southwesterly facing beaches (Cayucos, Avila Beach and Shell Beach). Coastal valleys and North County highs will peak Friday and then gradually cool through the weekend.
Only a few tenths of an inch of rain were recorded in April. Dry conditions are forecast through early May.
A 4- to 6-foot northwesterly (310-degree deep-water) swell (with an 8- to 11-second period) will arrive along our coastline later today, increasing to 6 to 8 feet (with a 9- to 12-second period) Tuesday through Wednesday. This northwesterly (310-degree deep-water) swell will decrease to 4 to 6 feet Thursday.
Increasing northwesterly winds will generate a 3- to 5-foot (310-degree deep-water) sea and swell (with a 5- to 11-second period) Friday and will stay at this height and period through Sunday.
Arriving from the Southern Hemisphere
A 1- to 2-foot Southern Hemisphere (200-degree deep-water) swell (with an 18- to 20-second period) will arrive along our coastline Tuesday into Wednesday, peaking on Thursday at 2 to 3 feet (with a 16- to 18-second period).
Seawater temperatures will range between 52 and 54 degrees through Tuesday, then rise to 53 through Friday.
John Lindsey’s Weekly Forecast is special to The Tribune. Contact him at email@example.com.