Offshore flow will bring warming for the coast and valleys today. North winds along and below the coastal slopes of the Santa Ana Mountains and San Bernardino County mountains will gust to 35 to 45 mph through this morning. Inland areas will warm through the weekend while coastal areas begin to cool on Sunday. Onshore will begin to strengthen and spread cooling inland on Monday as a low pressure system moving into California brings cooler and breezy conditions for the middle of next week.
For extreme southwestern California including Orange, San Diego, western Riverside and southwestern San Bernardino counties,
(today through Sunday), Northerly winds will strengthen along and below the coastal slopes of the Santa Ana mountains and San Bernardino County mountains into this morning. The winds will gust to 35 to 45 mph with isolated gusts near and below the Cajon Pass to 55 mph.
High temperatures for the coast and valleys will warm around 4 to 8 degrees today while the deserts cool around 5 degrees. High temperatures for today will range from around 70 near the coast to the 70s to around 80 for the valleys and inland Orange County with the lower deserts in the lower to mid 80s.
Warming on Saturday will range from a degree or two near the coast to 5 to locally 10 degrees for the deserts. The mountains and deserts will warm another 5 degrees on Sunday with the coast and western valleys cooling a few degrees. High temperatures on Sunday will be 5 to 10 degrees above average, ranging from around 70 near the coast to the upper 70s to mid 80s for the Inland Empire with the lower deserts in the lower to mid 90s.
(Monday through Thursday), Onshore flow will begin to strengthen on Monday and begin to spread cooling inland with Monday high temperatures a few to around 5 degrees above average. A low pressure system moving into California some time around late Tuesday and Wednesday will bring cooler and breezy conditions along with a slight chance of showers. High temperatures for next Wednesday will fall to around average near the coast to 5 to locally 10 degrees below average for the mountains. High temperatures for next Wednesday will range from the mid to upper 60s near the cast to the lower to mid 70s for the Inland Empire with the lower deserts in the lower to mid 80s.
171145z, Coast/Valleys/Coastal Slopes, Low clouds have been steadily climbing overnight with current bases 2500-3500ft MSL. Intermittent SCT/BKN cigs still exists in the valleys and coastal slopes but will continue to clear through 15-16Z. Coastal areas have scattered out but could still see lingering low clouds through the early morning hours. North to northeast winds are expected to become elevated around 14-16Z along coastal slopes in San Bernardino County. Winds will spread through the Cajon Pass into the Inland Empire and the Santa Ana mtns. Expect gusts 35-45 mph, locally up to 50 mph through wind prone passes and coastal slopes. MOD up/downdrafts in lee of mountains. Winds weaken and eventually diminish by the afternoon.
Desert Slopes/Deserts, Still seeing some gusty winds in the deserts, desert slopes and through mountain passes but will weaken, with the exception of the northern Coachella Valley, after the winds shift to northerly. MOD up/downdrafts in lee of mountains.
No hazardous marine conditions are expected through Tuesday.
Ca, Wind Advisory until 5 PM PDT this afternoon for Orange County Inland Areas-San Bernardino County Mountains-San Bernardino and Riverside County Valleys-The Inland Empire-Santa Ana Mountains and Foothills.
PZ, None.
