textproduct: Los Angeles

SYNOPSIS

12/524 PM.

Night through morning low clouds and fog will cover most of the coasts and many valley locations through the weekend and into early next week. Highs will cool slightly through Sunday. Most high temperatures will remain above normal, with the exception of the coasts, which will see temperatures near to slightly below normal.

LONG TERM (TUE-FRI)

12/203 PM.

Heights are expected to peak Monday into Tuesday in response to aforementioned ridge nosing in from the north and west. Due to persistent moderate to strong onshore flow not expecting too much warming for csts/vlys (remaining fairly close to normal). By Tuesday, the far interior should be around 10 degrees above normal. 100 degree readings are possible to likely across the Cuyama and Antelope valleys. Unlikely that we will need any heat products.

Thereafter, the ridge is expected to break down and at the sfc onshore flow will increase even more to the N and E. Subtle differences in guidance but the flow turns zonal and even a bit cyclonic as there is some agreement of a dry shortwave trough approaching the coast by Friday. This will result in a cooling trend with near to below normal temperatures into the weekend.

No major wind issues expected, but typical gusty SW-W winds in the afternoon will occur across the Antelope Valley (likely strongest Wednesday into Friday).

AVIATION

13/0023Z.

At 1708Z at KLAX, there was no marine layer. The top of the inversion was at 2300 ft with a maximum temperature of 27 C.

High confidence in VFR TAFs for KPRB, KPMD and KWJF.

Moderate confidence in TAFs for KBUR and KVNY with a 20 percent chc of LIFR/IFR cig and vis 12Z-15Z.

Moderate confidence in remaining TAFs. Timing of CIG/VSBY restrictions may be off +/- 2 hours and flight minimums by one category.

KLAX...Moderate confidence in the 00Z TAF. The timing of CIGs arrival and dissipation could differ by +/- 2 hours from TAF times. No significant east wind component expected.

KBUR... Moderate confidence in TAF. There is a 20 percent chc of LIFR CIGs 12Z-15Z.

MARINE

12/804 PM.

Moderate to high confidence in current forecast. Conditions are generally expected to remain below Small Craft Advisory (SCA) levels across the waters through the forecast period.

Local gusts to around 20 kts are affecting the waters near Point Conception, and also along some of the LA County Beaches. This pattern is likely to repeat each afternoon to evening period, especially along the LA Coast, through Monday.

BEACHES

12/809 PM.

A couple of long period southerly swells (14 seconds and 18 seconds) will move into the coastal waters on Saturday and continue through early next week. A Beach Hazard Statement is in effect from Saturday morning through Monday evening due to elevated surf of 3 to 6 feet on south-facing beaches of Ventura County Beaches, Malibu Coast, Los Angeles County Beaches, and Southern Santa Barbara County Beaches.

Evening tides of near 7.5ft are predicted from Saturday through Tuesday. The combination of the unusually high tides with elevated surf could result in minor to locally moderate coastal flooding for south exposed coasts, along with potential for sneaker waves. Even as tides lower, another southerly swell arrives which could extend concerns into Wednesday or Thursday. Stay tuned for updates.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Beach Hazards Statement in effect from 8 AM PDT Saturday through Monday evening for zones 349-350-354-362-366. (See LAXCFWLOX). PZ...NONE.