Today and Wednesday will be dry with weakening winds with Wednesday high temperatures warming to around average. Stronger onshore flow will spreading cooling inland on Thursday with southwest to west winds for the mountains and deserts gusting to 35 to 45 mph. The flow will turn offshore on Friday with warming for the coast and valleys and continued cooling for the mountains and deserts. Northeast winds along and below the coastal slopes of the mountains will gust to 35 to 45 mph. Warmer inland with weaker winds for next weekend with high temperatures warming to around 5 to 10 degrees above average on Sunday.
For extreme southwestern California including Orange, San Diego, western Riverside and southwestern San Bernardino counties,
(today through Thursday), Onshore flow will weaken today with warming and drying through Wednesday with Wednesday high temperatures warming to around average. High temperatures on Wednesday will range from the mid to upper 60s near the coast to the 70s for the valleys with the lower deserts in the upper 80s.
On Thursday, a low pressure system moving inland through the northern Rockies and Great Basin will bring stronger onshore flow to southern California. High temperatures will cool a few to around 5 degrees with high temperatures on Thursday ranging from the mid to upper 60s near the coast to the lower to mid 70s for the Inland Empire with the 80s for the lower deserts. There will be stronger and gusty southwest to west winds for the mountains and deserts with gusts to 35 to 45 mph. There will also be an increase in clouds for late Wednesday night into Thursday morning.
(Friday through Monday), The flow will turn offshore on Friday with northeast winds along and below the coastal slopes of the mountains gusting to 35 to 45 mph. High temperatures on Friday will cool a few to around 5 degrees while the coast and valleys warm 5 to 10 degrees. High temperatures on Friday will range from the lower to mid 70s near the coast to the upper 70s to mid 80s for the western valleys and inland coastal areas with the lower deserts in the lower to mid 80s.
There will be inland warming with weaker winds for next weekend. High temperatures on Saturday will warm around 5 degrees for the mountains, deserts, and inland valleys with the deserts warming another 5 degrees on Sunday. With the warming, Sunday high temperatures will be around 5 to 10 degrees above average, ranging from around 70 near the coast to the upper 70s to mid 80s for the valleys with the lower deserts in the lower to mid 90s.
For early next week, a low pressure system will move to near the West Coast bring cooling and a chance for precipitation with continuing model differences in the timing and amplitude of this system.
140930z, Coasts/Valleys, SCT to locally BKN low clouds between 3000-5000 feet MSL will continue this morning, most likely BKN near inland foothills. Mostly clear skies will prevail after 17Z. Patchy low clouds to gradually form and increase after 08Z overnight into Wednesday. Any cigs that form would be around 1500 feet MSL.
Mountains/Deserts, Westerly wind gusts 25-35 kt through passes and on to desert slopes through 14Z. MOD up/downdrafts in lee of mountains. Clouds on coastal slopes between 3000-4500 feet MSL locally obscuring terrain through 17Z. Mostly clear and VFR conditions will prevail thereafter.
No hazardous marine conditions are expected through Saturday.
Ca, None. PZ, None.
