Dry weather will continue through this weekend. There will be a gradual warming trend with high temperatures on Friday and Saturday warming to as much as 10 to 15 degrees above average for the inland valleys. There will be gusty east winds through the early evening along and below the coastal slopes of the mountains in Riverside and San Diego Counties with gusts to 40 mph.
For extreme southwestern California including Orange, San Diego, western Riverside and southwestern San Bernardino counties,
Easterly offshore flow continues today with wind gusts near 25-40 MPH across the mountains and foothills of San Diego and Riverside Counties. High clouds this morning will slowly scatter by this afternoon across much of the area. As skies clear and winds weaken, Tuesday morning will make for the coolest night for many this week. Most areas will lower into the 30s and 40s, though areas in the 20s are expected for parts of the high desert and Big Bear Lake region.
The weak ridge over the desert southwest will stick around into the middle of this week with similar weather expected on Tuesday. A trough's passage over Northern California will increase onshore flow and nudge temperatures down slightly near the coast with higher level clouds expected to filter the sunshine. Temperatures will remain near to slightly above normal with most areas in the 60s and 70s, with 50s above 5,000 feet.
Model guidance continues to be highly agreeable in a ridge of high pressure building in strength across the western part of the country. This will lead to a warming trend by Thursday into the weekend with highs as much as 10 to 15 degrees above normal. Friday and Saturday look to be the warmest days over all. Confidence is moderate to high to see temperatures reach 80 degrees for valleys greater than 5 miles away from the coastline, as well as high desert temperatures reaching 70 degrees. Inland valleys will be the warmest with around a 40-70% chance to see highs reach 85 degrees for northern Orange County, the western parts of the Inland Empire, and parts of east county San Diego. The high may weaken by Sunday into early next week, which would bring greater onshore flow and subtle cooling. Dry weather is likely to prevail this week into much of next week.
261700z, VFR conditions through Tuesday morning. BKN high clouds AOA 15000 feet MSL, gradually thinning out late afteroon and tonight. Areas of east-northeast winds 25-30 kts will continue mainly in and through foothills, decreasing after 23Z.
No hazardous marine conditions are expected through Thursday.
Ca, None. PZ, None.
