textproduct: Los Angeles

SYNOPSIS

27/214 AM.

High pressure aloft with locally gusty north winds will result in very warm temperatures today, with some record highs likely. Steady cooling will then follow Saturday through early next week as onshore flow returns. Fog is likely over coastal areas Friday through Sunday, with dense fog possible Friday and Saturday.

LONG TERM (MON-THU)

27/213 AM.

Monday's upper low passage is now forecast to be further to the north and will not bring any chc of rain. It will sweep in some upslope clouds against the north slopes. Onshore flow and falling hgts will allow for some morning stratus formation across the LA coast and the Central Coast. There will be enough cold air with this system to bring gusty NW winds to the coasts and the mtns. The cool air advection will also lower max temps 3 to 6 degrees for the csts/vlys but 5 to 10 degrees across the far interior.

Monday's cool air advection and developing offshore flow from the north will eliminate the low cloud threat on Tuesday and Wednesday. Mostly sunny skies, rising hgts and the offshore push will all team up and bring 2 to 3 degrees of warming Tuesday and an additional 1 to 2 degrees on Wednesday. Wednesday's max temps will mostly be in the 70s across the csts (away from the beaches) and vlys. These max temps are 3 to 6 degrees over normal.

Cooler and breezier on Thursday as another trof barrels through the northern half of the state.

Both AI-mdls are essentially dry through the 14th of March.

AVIATION

27/1018Z.

Around 0845Z, there was no marine layer depth at KLAX. There was a surface-based inversion up to around 700 feet with a temperature near 25 degrees Celsius.

High confidence in the current forecast. VFR conditions are expected through the period, except for a high chance of VLIFR to LIFR conditions at KPRB.

KLAX...VFR conditions are expected through the period. Any easterly winds will remain less than 7 knots.

KBUR...VFR conditions are expected through the period. No wind impacts are expected at this time.

MARINE

27/850 AM.

Moderate to high confidence in the current forecast. Higher confidence in sea forecast through Tuesday, moderate confidence thereafter. Moderate confidence in the wind forecast through the period.

For the waters southwest through northwest of the Channel Islands, there is likely (60 percent) chance of Small Craft Advisory (SCA) level winds through at least this afternoon. A lull in the winds will occur from this evening through Saturday afternoon, then there is a likely (60 percent) chance of SCA level winds developing on Saturday afternoon and continuing to increase through midweek next week. There is a moderate (30-40 percent) chance of GALES on Tuesday afternoon and evening, and again after Wednesday afternoon through Friday morning.

Inside the southern California bight, gusty offshore northeast winds will briefly flirt with SCA levels this morning below nearshore from near Point Mugu to Pacific Palisades. Then, wind and seas should fall below SCA levels through Saturday evening. There is a low to moderate chance of SCA level winds returning as early as Saturday evening, but a better chance exists after Sunday afternoon and into next week.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Wind Advisory in effect until 2 PM PST this afternoon for zones 340>342. (See LAXNPWLOX). PZ...Small Craft Advisory in effect until 9 AM PST this morning for zones 645-655-670. (See LAXMWWLOX). Small Craft Advisory in effect until 9 PM PST this evening for zones 673-676. (See LAXMWWLOX).