textproduct: Los Angeles

SYNOPSIS

25/1146 PM.

A ridge of high pressure over the region will bring a significant warming trend to the area through Friday. Mostly clear to partly cloudy skies will prevail with highs remaining well above normal into the weekend. The peak in temperatures will likely occur Friday, with daytime highs into the 80s and lower 90s. A cooling trend will develop over the weekend into early next week.

LONG TERM (SUN-WED)

26/234 AM.

The upper low move closer to the northern CA coast on Sunday. Hgts will fall through the day. The onshore push to the east will increase from 2 mb in the morning to 5 mb in the afternoon. There will be an increase in low clouds which will likely cover the Central Coast and the LAX-LGB areas. The increasing onshore flow will bring a strong sea breeze and max temps will cool off by 5 to 10 degrees (yet remain 4 to 8 degrees above normal)

There is better agreement in the mdls for Monday forecast and now it is likely that the upper low will pass through the center of the state and then into NV. This more inside track will totally eliminate the slim threat of rain. Hgt will not fall as much and the cooling will be a little less dramatic than was fcst ydy. The csts/vlys will only see 2 to 4 degrees of cooling. The Antelope Vly which will be closer to the lows track will see 6 to 8 degrees of cooling. Max temps will mostly be in the mid 60s to mid 70s, which is still 2 to 4 degrees above normal.

Ridging and a return to offshore flow are forecast for Tuesday, which will bring a few degrees of warming.

Troffing moves in on Wednesday, but stronger offshore flow will counter act any synoptic level cooling and max temps will rise 1 or 2 more degrees.

Both AI-mdls show no rain through the 14th of March.

AVIATION

26/1736Z.

At 1655Z at KLAX, the marine layer was 800 feet deep. The top of the inversion was at 2300 feet with a temperature of 22 C.

Overall, high confidence in 18Z TAF Package. Low clouds and FG should clear by 19Z at KPRB. Otherwise, VFR conditions with SCT- BKN high clouds at times expected through the forecast period.

KLAX...High confidence in VFR TAF. No significant east wind component expected.

KBUR...Good confidence in TAF.

MARINE

26/757 AM.

Seas will remain relatively small across the Coastal waters through the week.

For the outer waters, Small Craft Advisory (SCA) level NW winds of 20-25 knots will be common across the Outer Waters south and west of Point Sal through at least late Thursday night or through Friday morning. Winds will be strongest during the afternoon and evening hours. There is a moderate chance that localized wind gusts reach SCA levels across portions of the northern Outer Waters Thursday afternoon and evening (PZZ670).

For the inner waters south of Point Conception, gusty winds will flirt with advisory levels through the evening across the western portion of the Santa Barbara Channel and near the Channel Islands.

LOX WATCHES/WARNINGS/ADVISORIES

CA...NONE. PZ...Small Craft Advisory in effect until 10 PM PST this evening for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 10 AM PST Friday for zones 673-676. (See LAXMWWLOX).