textproduct: Los Angeles

SYNOPSIS

02/145 AM.

Dry and warmer weather is expected through the week as high pressure aloft returns. Temperatures will peak Friday through Sunday as Santa Ana wind pattern develops which will create even warmer temperatures and low humidities.

LONG TERM (THU-SUN)

02/219 AM.

High pressure will rebuild following the passage of the storm to the north. Models have been consistent indicating increasing offshore gradients, particularly Friday through Sunday. The latest ensembles indicate a gradient of around -5mb during that time. For now the models are not showing a ton of wind support aloft but that could change as we get closer. In any case, there is relatively high confidence in temperatures warming to the 80s in the valleys as early as Wednesday and by Friday for many coastal areas. There will likely be some Santa Ana winds as well but not sure yet on the strength.

AVIATION

02/0947Z.

At 0945Z at KLAX, there was no marine layer nor an inversion.

High confidence in 00Z TAF Package. VFR conditions expected at all sites through the forecast period.

KLAX...High confidence in TAF. VFR conditions will prevail. Good confidence in any east wind component remaining below 8 kt and likely under 6 kt.

KBUR...High confidence in VFR TAF, except moderate confidence in wind through 02/03Z.

MARINE

01/829 PM.

High confidence in gusty NW winds across all of the waters will persist through around midnight, then diminishing through the next few hours. Seas are hazardous, meeting SCA levels for short period seas above 5 feet for all of the waters, around 6-7 feet at 7 seconds nearshore and 7-9 feet at 7-8 seconds in the outer waters. The SCA has been extended through 3 AM Monday at which time winds will have weakened for a few hours, allowing seas to subside.

The winds turn to the N on Monday and will likely stay below SCA- levels. There is a chance for another round of post-frontal winds on Tuesday and Wednesday, but likely a step below in strength compared to today. Finally, over portions of the outer waters, SCA winds may persist through Thursday or Friday.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Beach Hazards Statement in effect through this afternoon for zones 354-362-366. (See LAXCFWLOX). PZ...Small Craft Advisory in effect until 3 AM PST early this morning for zones 645-650-655-670-673-676. (See LAXMWWLOX).