Marine Weather and Tide Forecast for Manhattan Beach, CA

.SHORT TERM (TUE-FRI)...19/850 PM.

***UPDATE***

Weak offshore flow teamed up with totally sunny skies today to bring a 5 to 10 degree warm up to almost all of the forecast area today. Unfortunately the warm temps and light offshore flow also brought low humidities and some canyon winds which combined to produce a hazardous fire weather environment which did not help the fire fighters. Current forecast looks good with a return of onshore flow by late morning Wednesday which will bring 3 to 5 degrees of cooling to the csts/vlys with up to 10 degrees across the SBA south coast due to the lack of north flow. The interior will continue to warm tomorrow by about 6 degrees.

***From Previous Discussion***

Very little change to the previous forecasts through the rest of this week. Temperatures will peak Wednesday, generally 1-3 degrees warmer than today, except around 5 degrees warmer in the Antelope Valley. Light offshore flow will start the day but will turn onshore by afternoon or sooner at the coast. Warmer valleys will reach the lower 90s while areas towards the coast will be in the 70s and 80s. These are roughly 5-10 degrees above normal.

While the upper level pattern remains more or less the same through the rest of the week, the primary change will be the reversal from offshore to onshore flow beginning Thursday which will bring temperatures back down to near normal levels by the weekend. This will also coincide with a return of the marine layer, as early as Thursday in some areas but possibly not til Friday or Saturday for the valleys.

One exception to this may be southwest Santa Barbara County where a 2-4mb offshore gradient during the overnight hours will likely create nightly Sundowners with winds gusting between 25 and 40 mph at times, particularly Wednesday and Thursday nights.

.LONG TERM (SAT-TUE)...19/209 PM.

The rest of the 7 day forecast into early next week is very benign as the baggy trough will persist with moderate to strong onshore flow through the period. This is likely to maintain temperatures near to slightly below normal temperatures with a steady dose of night and morning low clouds and fog covering most coast and valley areas.

And once again there is the possible exception across southwestern Santa Barbara County where offshore flow returns Monday night with gusty north winds at times.

AVIATION
20/0544Z.

At 0522Z at KLAX, there was no marine layer. There was a sfc based inversion with a top of 900 ft with a temperature of 26 C.

High confidence in CAVU TAFs. There is a 20% chance of 5SM FU at KVNY.

KLAX...High confidence in CAVU TAF. Good confidence that any east wind component will be AOB 5kt.

KBUR...High confidence in CAVU TAF. No wind issues expected.

MARINE
19/755 PM.

High confidence in current forecast. Through this weekend, winds and seas are expected to remain below Small Craft Advisory (SCA)
levels, with a few exceptions of local SCA level gusts during the afternoons and evenings. Across the outer waters south of Port San Luis, local gusts to SCA levels will be possible each afternoon/evening through Friday, and again on Sunday. For the inner waters along the Central Coast south of Port San Luis, off the coast of Point Dume, across the San Pedro Channel, and in the Santa Barbara Channel, local gusts to SCA levels will be possible on Wednesday afternoon through early evening.

LOX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...NONE.