High temperatures for inland areas of around 4 to 8 degrees above average through Friday will cool slightly to a few to around 5 degrees above average for early next week. Greater monsoonal moisture on Thursday and Friday and again around Monday of next week will bring a chance of afternoon showers and thunderstorms for the mountains and deserts. Night and morning low clouds will continue for the coastal waters into coastal areas.
For extreme southwestern California including Orange, San Diego, western Riverside and southwestern San Bernardino counties,
, UPDATED AVIATION DISCUSSION,
(today through Friday), For the coast and valleys, high temperatures will warm a few degrees today and cool a few degrees on Thursday with not much change on Friday. For the mountains and deserts, there will be slight day to day differences through Friday.
High temperatures for today will be a few degrees above average near the coast to 4 to 8 degrees above average for the mountains, deserts, and inland valleys. High temperatures for today will range from the mid 70s to lower 80s near the coast to the mid 90s to 105 for the Inland Empire with 108 to 112 for the lower deserts.
Precipitable water values will increase for Thursday and Friday with a slight chance of afternoon showers and thunderstorms for the mountains and deserts. Night and morning low clouds will continue for the coastal waters into coastal areas.
(Saturday through Tuesday), High temperatures will be slightly cooler by early next week with high temperatures for Monday and Tuesday a few degrees above average for the deserts and around 5 degrees above average for the coast and valleys. High temperatures for Monday and Tuesday will range from the mid 70s to lower 80s near the coast to the mid 90s to 103 for the Inland Empire with 106 to 110 for the lower deserts.
There will be drying of monsoonal moisture for the weekend with another brief increase possible around Monday of next week. Chances for afternoon showers and thunderstorms for the mountains and deserts will decrease for the weekend, then may increase again around Monday of next week.
191130z. Coast, Low clouds based around 800-1000 feet MSL will continue with good uniform coverage south of KSNA, but more patchy and intermittent KSNA north. Scatter out by 16Z. Low clouds with similar bases to gradually redevelop but in patchier fashion and not as far inland after 06Z tonight into Thursday.
Otherwise, mostly clear today and tonight.
No hazardous marine conditions are expected through Sunday.
Ca, Heat Advisory from 10 AM this morning to 8 PM PDT Thursday for San Bernardino and Riverside County Valleys-The Inland Empire.
Extreme Heat Warning from 10 AM this morning to 8 PM PDT Friday for Coachella Valley-San Diego County Deserts-San Gorgonio Pass near Banning.
PZ, None.
