It will continue to be not quite as hot for today and Wednesday with high temperatures ranging from a few degrees above average for the coast and valleys to around 5 degrees above average for the deserts. High pressure to the east will strengthen and expand westward for Thursday into the weekend. The heat is expected to peak on Saturday with high temperatures for inland areas 10 to 15 degrees above average, near record setting for the lower deserts and portions of the mountains.
For extreme southwestern California including Orange, San Diego, western Riverside and southwestern San Bernardino counties,
(today through Thursday), It will continue to be not quite as hot for today and Wednesday with high temperatures ranging from a few degrees above average for the coast and valleys to around 5 degrees above average for the deserts. High temperatures through Wednesday will range from the mid to upper 70s near the coast to the 90s to around 100 for the Inland Empire with 110 to 114 for the lower deserts.
High pressure to the east will strengthen and expand westward for Thursday into the weekend with warming beginning on Thursday. High temperatures will warm a few degrees on Thursday to a few degrees above average near the coast to as much as 5 to 10 degrees above average for the deserts. High temperatures on Thursday will range from the mid 70s to around 80 near the coast to the mid 90s to 105 for the Inland Empire with 112 to 116 for the lower deserts.
(Friday through Monday), High pressure will strengthen into the weekend. The heat is currently forecast to peak on Saturday with high temperatures 5 to 10 degrees above average for coastal areas and 10 to 15 degrees above average for inland areas. High temperatures on Saturday will range from around 80 near the coast to 100 to 110 for the Inland Empire with 118 to 122 for the lower deserts. The most likely locations to tie or set new record high temperatures on Saturday are in the mountains and lower deserts, though there are some additional valley and inland coastal locations that could also be near record levels.
High temperatures will begin to cool a few degrees for Sunday and Monday, but still be around 10 degrees above average for inland areas on Monday with extreme HeatRisk for the deserts.
281124z. Coast/Valleys, Patchy low clouds based 1000-1400ft MSL increasing in coverage and will continue to push up to 15-20 miles inland. VIS 3-6SM where stratus nears terrain and in the valleys. Clouds clearing to the coast 15-18Z, remaining BKN-OVC at some of the beaches into the afternoon. Low clouds push inland again after 03Z Wed, spreading first into San Diego County and then further up into Orange County likely after 10Z Wed. Bases for Wednesday morning will be similar to today, around 1000-1300ft MSL.
Mountains/Deserts, FEW-SCT Cu AOA 15,000 ft MSL possible through Tuesday evening. Otherwise, SKC and VFR.
No hazardous marine weather is expected through Saturday.
A south swell of 3-4 ft feet at 17 seconds will produce surf of 3-5 feet with sets to 6 feet into Wednesday. A Beach Hazard Statement remains in effect through 5 PM Wednesday for the elevated surf, high rip current risk, and minor tidal overflow.
Wednesday afternoon, a south swell associated with Hurricane Genevieve will arrive. Some uncertainty exists in the height of the swell, but current forecast shows a swell (170-180 degrees) of 5 ft with a period of 14-15 seconds late Wednesday into early Friday, becoming more SSW (190-200 degrees) late Friday into Saturday with the period lowering to 12-13 seconds. This may produce surf of 5-9 ft on the south facing beaches north of Oceanside, surf around 3-6 ft elsewhere, and strong rip and longshore currents at all beaches. A High Surf Advisory is in effect from 5 PM Wednesday through 5 PM Saturday. In addition to the high surf, evening high tides will be above 6 ft this week. A Coastal Flood Advisory is in effect from 5 PM Wednesday through 3 AM Saturday for the risk of coastal flooding due to the high tides combined with high surf.
Ca, Beach Hazards Statement through Wednesday afternoon for Orange County Coastal Areas-San Diego County Coastal Areas.
Coastal Flood Advisory from 5 PM Wednesday to 3 AM PDT Saturday for Orange County Coastal Areas-San Diego County Coastal Areas.
High Surf Advisory from 5 PM Wednesday to 5 PM PDT Saturday for Orange County Coastal Areas-San Diego County Coastal Areas.
Heat Advisory from 10 AM Friday to 8 PM PDT Sunday for Orange County Coastal Areas-San Diego County Coastal Areas.
Extreme Heat Warning from 10 AM Thursday to 8 PM PDT Monday for Apple and Lucerne Valleys-Coachella Valley-Riverside County Mountains-San Bernardino and Riverside County Valleys-The Inland Empire-San Diego County Deserts-San Diego County Mountains-San Gorgonio Pass near Banning.
Extreme Heat Warning from 10 AM Friday to 8 PM PDT Sunday for Orange County Inland Areas-San Diego County Valleys-Santa Ana Mountains and Foothills.
Heat Advisory from 10 AM Thursday to 8 PM PDT Monday for San Bernardino County Mountains.
PZ, None.
