Weather
Low Clouds, Cool Weather, Drizzle Forecast For San Diego County
A deep marine layer was forecast to bring low clouds, cool weather and patchy morning drizzle west of the San Diego County mountains.
SAN DIEGO, CA — A deep marine layer was forecast to bring low clouds, cool weather and patchy morning drizzle west of the San Diego County mountains this weekend, the National Weather Service said Saturday.
The marine layer was 4,100 feet deep Saturday morning, deep enough for drizzle to wet the roads in some coastal and valley areas, the NWS said.
Low clouds extended inland to the foothills including Interstate 8 near Alpine and the Cajon Pass in the Inland Empire. They were expected to be slow to clear Saturday, with some areas only seeing limited clearing in the afternoon.
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High temperatures along the coast Saturday were predicted to be 65 to 70 degrees with overnight lows of 52 to 57. Inland valley highs were expected to be 67 to 72 with overnight lows of 47 to 54.
Highs in the mountains were expected to be 64 to 72 with overnight lows of 42 to 50, and highs in the deserts will be 84 to 89 with overnight lows of 57 to 65.
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Similar conditions were forecast for Sunday, with a deep marine layer and a weak upper level trough aloft bringing cool weather and areas of morning drizzle west of the mountains.
The mountains and deserts were expected to see high cirrus clouds Sunday from the passing upper trough along with breezy northwest winds Sunday afternoon and evening.
A pattern change should start early next week when upper ridging over the eastern Pacific on Monday grows into a high amplitude ridge over the West Coast on Wednesday through Friday. High temperatures on those days were predicted to be way above average with coastal highs in the 80s and valley highs in the mid 90s. Mountains highs were forecast to be in the 70s and 80s, high desert highs near 90 and lower desert highs near 100.
Thursday may be the hottest day of the week as weak offshore flow adds to the heating potential west of the mountains, the NWS said. Valley, mountain and desert highs on Friday could match Thursday's highs, but that will depend on how quickly the ridge breaks down.
Coastal zones should see a slightly cooler day Friday as a shallow marine layer returns and the sea breeze is a little stronger.
Cooler weather and possibly some precipitation should return next weekend.
—City News Service
