10/356 AM.
Temperatures will rise to up to 15 degrees above early June normals today. Then highs will remain warm through Friday, except for a large cool down Thursday along the Central Coast. A slow but gradual cooling trend is likely this weekend into early next week. Expect minimal marine layer clouds today and Thursday, before becoming more widespread through the weekend.
(tdy-Fri), 10/348 AM.
A significant warmup is expected today, as onshore flow weakens and high pressure builds over the area. Breezy offshore winds are expected through this morning across the higher terrain in San Luis Obispo and Santa Barbara Counties. As a result of these downsloping winds, the warming temperatures will be most noticeable along the Central Coast. Heat Advisories have been issued for the interior coasts of Santa Barbara and San Luis Obispo counties today. High temps are expected to reach 12-18 degrees above normal for the areas in the Heat Advisory, and elsewhere will commonly see up to 10 degrees above normal for early June. While the inland extent of marine layer stratus and fog will be minimal this morning, stratus and patchy fog will remain possible over the immediate coasts and coastal waters.
Warm conditions will continue into Thursday and Friday for most locations with the exception of the Central Coast, where increasing onshore flow will drive a decrease in temperatures to close out the week. There is a low chance (5% chance) of a shower or thunderstorm developing over southern portion of the forecast area, particularly the eastern San Gabriel mountains Friday and Saturday afternoon and evening. PWATs may increase to near 1-inch as a weak upper low is favored to shuttle mid-level moisture into the region from the southeast.
(Sat-Tue), 10/355 AM.
This weekend into early next week, minimal changes in the weather pattern are expected each day. Temperatures will very gradually trend cooler, and consistent onshore flow will maintain areas of marine layer stratus and fog each morning. The synoptic pattern favors moderate riding over the area, thus temperatures inland will be several degrees above normal. Coast and valley areas will be under the influence of the onshore flow and marine layer clouds (nature's air conditioning) thus temperatures will be near (if not slightly below) normal. Like Friday, there is a small chance for a shower or thunderstorm over the eastern San Gabriel Mountains Saturday afternoon through evening.
10/1059z.
At 0719Z at KLAX, the marine layer was about 1500 ft deep. The inversion top was at 2900 ft with a maximum temperature of 21 C.
High confidence in VFR TAFs for KPMD and KWJF, but winds may be off by 5 kt at times.
Moderate to low confidence in remaining TAFs. There is a 20% chance of cigs at KSMO, and KLAX between 13Z-15Z Wed, and a 60% chance at KLGB.
KLAX, Moderate confidence in TAF. Timing of flight category changes could be +/- 3 hours of current forecast, and there is a 20% chance of BKN005 to BKN015 cigs between 13Z-15Z Wed. Any east wind component is expect to be less than 6 kt.
KBUR, High confidence in TAF.
10/359 AM.
For the Outer Waters, moderate to high confidence in current forecast. Localized gale force gusts will be possible over all of the outer waters early this morning. Small Craft Advisory (SCA) level winds and seas are likely to persist through tonight, with much weaker winds Thursday through Saturday.
For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. Winds will increase to SCA levels this afternoon. Seas will be near or above SCA levels through tonight. Thursday through Saturday, winds and seas are expected to remain below SCA levels.
For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. For a majority of the southern Inner Waters, high confidence in winds and seas remaining below SCA levels through Saturday.
10/400 AM.
A High Surf Advisory is in effect for beaches along Malibu through Thursday. At 1 PM PDT Tuesday, latest report from Zuma indicated swell height around 7 to 10 feet at 19 seconds. A Beach Hazard Statement remain in effect for the Ventura County Beaches through Thursday evening. A long period south swell will continue to move through the waters Today through Thursday, with swell height building to 3 feet nearshore. Periods around 20 seconds, decreasing to 15 seconds by Thursday. Surf is forecast to build to 4 to 7 feet with local sets to 7 to 10 feet along south facing shores of Los Angeles County Beaches, and 3 to 6 feet for Ventura County Beaches.
Hazardous surfing and swimming conditions are expected due to the building surf, along with strong rip currents.
Ca, High Surf Advisory in effect until 8 PM PDT Thursday for zones 87-362-366. (See LAXCFWLOX). Heat Advisory remains in effect from 10 AM this morning to 7 PM PDT this evening for zones 341-347. (See LAXNPWLOX). Wind Advisory remains in effect until 7 AM PDT this morning for zones 349-351-378. (See LAXNPWLOX). Beach Hazards Statement in effect through Thursday evening for zone 354. (See LAXCFWLOX). PZ, Small Craft Advisory in effect from 2 PM this afternoon to 8 PM PDT this evening for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Thursday for zones 670-673. (See LAXMWWLOX). Small Craft Advisory in effect until 8 AM PDT this morning for zone 676. (See LAXMWWLOX).
