textproduct: Los Angeles

SYNOPSIS

21/844 AM.

Despite noticeable cooling today temperatures will remain well above normal. Areas of dense coastal fog are possible this the weekend as well. Temperatures will trend upward again next week but are not expected to be as hot as this week.

LONG TERM (WED-SAT)

21/144 PM.

Tuesday through Thursday will be very warm days, but will not be record breaking like last week's. The upper high will not be overhead and hgts will be a few dam lower. Additionally while there will be offshore flow from the north there will be onshore flow to the east. Highs will continue in the 80s and 90s or 15 to 20 degrees above normal. There may be a need for heat advisories in the vlys but no warnings are anticipated.

The ridge weakens some on Friday and the onshore push to the east increases. This will likely bring 3 to 5 degrees of cooling to the csts and 1 to 3 degrees in the vlys.

There is growing confidence that the rest of the month will be dry. The AI-mdls still show some chc of light rain at the beginningof April.

AVIATION

21/1608Z.

At 1600Z at KLAX, the marine layer was 800 feet deep. The top of the inversion was 2300 feet with a temperature of 24 degrees Celsius.

For 18Z TAF package, high confidence in KPRB, KSBP, KSMX, KBUR, KVNY, KPMD and KWJF.

For KSBA, KOXR, KCMA, KSMO, KLAX and KLGB, moderate confidence in 18Z TAFs. Lower confidence due to uncertainties in timing of CIG/VSBY restrictions tonight (could be +/- 3 hours of current forecasts) and flight category (could range from IFR to VLIFR).

KLAX...Overall, moderate confidence in 18Z TAF. Timing of flight changes this evening/overnight could be +/- 3 hours of current forecasts. Also, there is a 30% chance of VLIFR conditions 07Z-14Z. No significant easterly wind component is expected.

KBUR...High confidence in 18Z TAF as VFR conditions are expected through the period.

MARINE

21/1155 AM.

For the Outer Waters, moderate to high confidence in current forecast. Today through Thursday, high confidence in a combination of Small Craft Advisory (SCA) level winds and seas. For tonight, there is a 60% chance of GALE FORCE WINDS across PZZ670. Additionally on Wednesday, there is a 30-40% chance of GALE FORCE WINDS across all of the Outer Waters.

For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. Through this evening, there is a 30-40% chance of SCA level winds. For Sunday through Thursday, there is a 60-70% chance of SCA level winds during the afternoon and evening hours.

For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. For most of the southern Inner Waters, high confidence in winds and seas remaining below SCA levels through Thursday. The only exception will be the western half of the Santa Barbara Channel where there is a 20-30% chance of SCA level winds today through Thursday, mainly in the late afternoon and evening hours.

Areas of dense fog will impact the coastal waters through Sunday, mainly from Point Conception southward. Visibilities of one nautical mile or less can be expected.

LOX WATCHES/WARNINGS/ADVISORIES

CA...NONE. PZ...Small Craft Advisory in effect from 6 PM this evening to 3 AM PDT Sunday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 6 PM PDT this evening for zone 670. (See LAXMWWLOX). Gale Warning in effect from 6 PM this evening to 5 AM PDT Sunday for zone 670. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Monday for zone 673. (See LAXMWWLOX). Small Craft Advisory in effect from 6 PM this evening to 3 AM PDT Monday for zone 676. (See LAXMWWLOX).