textproduct: Los Angeles

SYNOPSIS

26/228 PM.

High pressure aloft with locally gusty north winds will bring record high temperatures on Friday, with steady cooling to collow through early next week as onshore flow returns. Some dense fog is likely over coastal areas to close the week.

LONG TERM (MON-THU)

26/229 PM.

A weak upper level low pressure system will skirt through interior California on Monday. While no rain is expected (except for a small chance on the north slopes), this will continue the cooling train into Monday when temperatures return to normal. The cold air aloft will likely disrupt and marine layer low clouds that form over the weekend. Temperatures change little through the middle of the week.

The low will also stir up some gusty west to northwest winds which will likely impact the coastal and mountain areas.

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

26/229 PM.

Seas will remain relatively small across the Coastal waters through at least the beginning of next week.

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 Friday morning. Winds will be strongest late this afternoon into the early evening hours. In addition, winds could reach these speeds at times beyond 40 NM from the Central Coast this evening. Conditions are likely to fall below advisory levels by Friday evening through Saturday morning, then are expected to ramp up Saturday and Sunday south of Point Conception. These SCA winds are expected to strengthen and become widespread to include the northern waters by Mid-week. There is a moderate chance for GALES during this period.

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. Locally gusty offshore winds below canyons nearshore from Point Mugu to Malibu is likely later this evening into the overnight timeframe. SCA conditions confined to western portions of the SB Channel is possible on Saturday, but likely to expand and include eastern portions Sunday and Monday. Strongest on Monday with a 10% chance of Gale Force wind gusts.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Wind Advisory in effect until 2 PM PST Friday for zones 340>342. (See LAXNPWLOX). 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).