textproduct: Los Angeles

SYNOPSIS

11/345 PM.

Minor to moderate coastal flooding is likely continue to through at least Tuesday. Periods of light to moderate rain and a low chance of thunderstorms will persist through Monday with below normal temperatures. Beginning Tuesday and continuing through the end of the week, weak to moderate offshore flow will bring warm and dry conditions to the area.

LONG TERM (THU-SUN)

11/237 PM.

An upper level ridge will build into nrn CA thru Sat while an upper level low develops S of this high over nrn Baja or just off the coast. This will keep a broad E to NE flow aloft over swrn CA. This pattern is forecast to break down Sat night and Sun with weak ridging aloft over CA developing.

Overall, swrn CA will see dry and warm conditions thru the extended period with offshore flow. There is a decent chance of moderate Santa Ana winds each day across Ventura/LA counties and would not be surprised to see Wind Advisories for the Santa Ana wind corridors especially Fri and Sat.

Temps will warm to as much as 10-20 deg above normal across the region by Fri when highs in the warmest vlys and coastal areas should be well into the 90s.

AVIATION

12/0535Z.

At 06Z at KLAX, there was neither a marine layer nor a marine inversion. A moist layer was present around 4000 to 5000 feet.

Overall, low to moderate confidence in TAFs. There is a threat of sprinkles or very light showers at all sites, but higher chances for LA coast and valley TAF sites. There will be 20-40% chance of MVFR CIGs at all sites.

KLAX...Moderate confidence in TAF. Short periods of sprinkles or light showers are possible into Monday morning. There is a 30% chance of MVFR CIGs anytime during the TAF period. No significant easterly winds are expected.

KBUR...Moderate confidence in TAF. Short periods of sprinkles or light showers are possible through Monday morning. There is a 40% chance of MVFR CIGs anytime during the TAF period.

MARINE

11/813 PM.

For the Outer Waters, moderate to high confidence in current forecast. Through Monday afternoon, high confidence Small Craft Advisory (SCA) level seas but winds will be below SCA levels except for near Point Conception in Zone PZZ673. On Tuesday, there is a 40-60% chance of SCA level winds, again mainly around Point Conception. For Wednesday through Thursday, high confidence in winds and seas remaining below SCA levels. Seas of 10+ feet will slowly diminish through late Monday afternoon.

For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. Winds are below SCA levels but SCA seas of 10+ feet are likely through late tonight. For Monday, high confidence in winds and seas remaining below SCA levels. For Tuesday through Thursday, there is a 30-40% chance of SCA level winds in the afternoon and evening hours, except a 50% chance Wednesday evening.

For the Inner Waters south of Point Conception, moderate confidence in current forecast. Conditions are below SCA levels, but choppy seas between 4 to 6 feet are likely through late tonight. For Monday through Wednesday, high confidence in winds and seas remaining below SCA levels for most area, but the only exception is the western half of the Santa Barbara Channel where there is a 50% chance of SCA level winds Tuesday afternoon and evening. On Thursday and Friday, there is a 30-40% chance of SCA level northeast winds from Ventura south to Santa Monica.

Periods of light to moderate showers are likely through Monday, mainly during the overnight to morning hours. There is a 10% chance of thunderstorms during the same time frame. While showers or thunderstorms are possible anywhere, the highest chances exist south of Point Conception.

Long period swell from the west and the south are affecting the coastal waters, and can create a confused sea state. This can make boating more challenging and dangerous, especially for small vessels.

BEACHES

11/222 PM.

While the peak timing for the most impactful coastal flooding has passed, there is still a threat of minor to moderate coastal flooding through Tuesday, due to continued high tides and elevated to high surf. The highest tides will occur during the mornings and range from 7.0 to 7.5 feet Monday and Tuesday, with secondary high tides during the evenings (around 6 feet tonight decreasing to 5 feet by Tuesday evening). As for elevated surf, a long period southerly swell and long period westerly swell will impact the coastal waters the next several days, and slowly subside further each day.

All Coastal Flood Warnings have been replaced by Coastal Flood Advisories, with the advisory for the Central Coast continuing until Monday evening, and the rest of the coasts continuing until Tuesday afternoon. High Surf Advisories Ventura and LA Coastal beaches (surf 5-8 feet) continue to be in effect through this evening, while the advisory for the Central Coast beaches (surf 8-12 feet) continue into Monday evening. The Beach Hazards Statement for Santa Barbara South Coast will continue into Tuesday afternoon as well, and is due to elevated surf and minor tidal overflow during high tides (lingering after the coastal flood advisory expires).

Please continue to monitor the forecast and refer to the Coastal Hazard Product (CFWLOX) for more information.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Coastal Flood Advisory in effect until 2 PM PDT Tuesday for zones 87-354-362-366. (See LAXCFWLOX). Coastal Flood Advisory in effect until 10 PM PDT Monday for zones 340-346-349-350. (See LAXCFWLOX). High Surf Advisory in effect until 10 PM PDT Monday for zones 340-346. (See LAXCFWLOX). Beach Hazards Statement in effect through Tuesday afternoon for zones 349-350-354-362-366. (See LAXCFWLOX). Wind Advisory in effect until 5 AM PDT Monday for zones 378>383. (See LAXNPWLOX). PZ...Small Craft Advisory in effect until 3 AM PDT Monday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 5 PM PDT Monday for zones 670-673-676. (See LAXMWWLOX).