Marine Weather and Tide Forecast for La Mirada, CA

.SHORT TERM (TDY-SAT)...16/239 AM.

Expect to see patchy fog in the Salinas River Valley and possibly the LA Basin early this morning, along with some mid to high level clouds passing over the area throughout the day. A cold inside slider continues to track through the Great Basin and into Colorado through Friday that will bring periods of gusty north to northeast winds to portions of southwest California over the next few days. Winds today will increase and turn offshore over the interior, with the strongest gusts near the I-5 corridor and Antelope Valley. Current wind advisories for this area look on track. These offshore winds will likely lead to warming near the coasts, especially for Santa Barbara and San Luis Obispo County.
As winds shift to the northeast this evening, they strengthen further, reaching wind advisory levels for the Santa Lucia Mountains, Santa Ynez Range, possibly the interior Santa Barbara County mountains. Will also likely need wind advisories Thursday night for the Antelope Valley and foothills, along with Santa Ana prone areas by Friday morning.

The northerly winds will create some downslope warming across the coast and valleys today leading to 2-4 degrees of warming today.
However, thick high clouds could limit warming at least through mid afternoon.

Upper level winds will shift more east into Friday creating our next Santa Ana wind event, peaking mid morning Friday through mid afternoon. Expecting at least advisory level winds across the usual Santa Ana wind favored areas of LA/Ventura Counties and possibly low end high wind warning levels in the mountains.
Models show 850mb winds around 60-65kt, so there is 20-30% chance that high wind warnings could be needed at isolated lower elevation areas, especially in the Simi Valley/Thousand Oaks area of Ventura County as well as the western Santa Monica mountains.

Additional downslope warming off the mountains will push temperatures up into the upper 70s to mid 80s across coasts and valleys.

Gradients and upper support drop off quickly later Friday into Saturday, so much less wind expected. However, temperatures will continue to warm up away from the immediate coast with some upper 80s likely in the warmest valleys and intermediate areas in the mid 80s.

.LONG TERM (SUN-WED)...16/238 AM.

Still a bit of uncertainty in the long term, especially Monday through Wednesday. However, as of now, impacts look to be minimal locally. On Sunday, pressure gradients turn back to onshore ahead of a cold upper level low pressure system that will make its way southward from the Pacific NW through the weak. With the return of onshore gradients, highs will cool several degrees, but highs will remain in the low 80s across the valleys, mid 70s to around 80 in Downtown LA and across other inland coastal areas.

The remainder of the forecast through next week really depends on the track and speed of the cold and cut off upper low sliding down the West Coast. Temperatures will continue to cool, though the amount of daily cooling could be as much as 4-6 degrees or as little as 1-3. Will likely see increasing low clouds and fog for coast and possibly valleys at some point. Rain is a possibility as well, though timing and exact amounts is still uncertain. Rain could fall anywhere between Monday through Wednesday, or not at all. At this time, amounts look to be pretty minimal, with some solutions showing totals around 0.50 inches or less, mainly north of Point Conception.

AVIATION
16/0640Z.

At 0536Z at KLAX, the marine layer was 600 feet deep. The top of the inversion was 1100 feet with a temperature of 18 C.

Low to moderate confidence in KLAX, KSMO, and KLGB TAFs through 17Z Thu and again after 05Z Fri. Moderate to high confidence in KSMX and KPRB TAFs through 16Z. Elsewhere and otherwise, high confidence in TAFs.

There is a chance that IFR to low MVFR CIG/VSBY restrictions develop between 07Z-16Z Thursday at KSMX (30%) and KPRB (20%), and between 07-16Z Thursday and again after 05Z Friday at KLAX (40%), KLGB (40%), and KSMO (35%).

KLAX...Low to moderate confidence in TAF through 17Z, and again after 05Z Fri. There is a 40% chance of BKN008-015 conds between 07Z-16Z Thu, and again after 05 Fri. No significant east wind component expected, however there is a 30% chance of reaching 5 kt 10-15Z each morning.

KBUR...High confidence in TAF. No wind issues expected.

MARINE
16/230 AM.

For the Outer Waters, moderate to high confidence in current forecast. A combination of (at least) Small Craft Advisory (SCA)
level winds and seas are expected through at least Friday morning, and possibly linger through Friday night. This afternoon through late tonight, there is a 50-60% chance of Gale Force winds and a GALE WARNING has been issued for all Outer water zones.
However, localized gale force gusts are possible early this morning. Seas will peak Saturday night into early Friday morning and then diminish below advisory levels through Friday. Saturday through Monday, there is a 20-30% chance of SCA level winds.

For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. Through tonight, high confidence in SCA level winds and seas through tonight, with winds strongest during the afternoon and evening hours. There is a 20% chance of GALE force wind gusts this evening. Friday through Monday, high confidence in winds and seas remaining below SCA levels.

For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. There is a 60% chc of SCA level winds across the far western portion of the Santa Barbara Channel this afternoon and evening. Otherwise, winds and seas will remain below SCA levels through tonight. On Friday morning, there is a 50-70% chance of SCA level northeast winds from Ventura south to Santa Monica out to Anacapa Island, and potentially across the San Pedro Channel. From Point Mugu to Malibu on Friday morning, there is a 30% chance for Gale Force winds near the coast, and especially below any canyons/passes. Saturday through Monday, high confidence in winds and seas remaining below SCA criteria for all southern Inner Waters.

LOX WATCHES/WARNINGS/ADVISORIES
CA...Wind Advisory remains in effect from 2 PM this afternoon to 9 PM PDT this evening for zones 340-346. (See LAXNPWLOX).
Wind Advisory remains in effect from 7 PM this evening to 8 AM PDT Friday for zone 342. (See LAXNPWLOX).
Wind Advisory in effect from 7 PM this evening to 3 AM PDT Friday for zones 349-351-352. (See LAXNPWLOX).
Wind Advisory remains in effect until 9 AM PDT this morning for zones 378-381. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect until 3 AM PDT Friday for zone 645. (See LAXMWWLOX).
Small Craft Advisory in effect until 3 PM PDT this afternoon for zones 670-673-676. (See LAXMWWLOX).
Gale Warning in effect from 3 PM this afternoon to 3 AM PDT Friday for zones 670-673-676. (See LAXMWWLOX).