13/755 PM.
Showers over the area have diminished, with just a few isolated light showers this evening. Dry and warmer weather is expected for the remainder of this week. Gusty northerly winds will affect much of the area on Thursday, shifting to northeast and becoming focused over Los Angeles and Ventura Counties on Friday.
(Mon-Thu), 13/823 PM.
***UPDATE***
A cold upper low moved over the area today, bringing scattered showers and thunderstorms to the area. LA County was by far the most affected by these storms, with plentiful lightning and brief bursts of heavy rainfall. However, these stronger storms were not widespread, mainly affecting the San Fernando Valley and the mountains. Higher totals ranged from 0.15 to 0.55 inch over the San Gabriels, with 0.15 to 0.20 inch over the San Fernando and Santa Clarita Valleys. Much lighter totals occurred further west, with little to no rain over the northern counties.
Gusty westerly winds are affecting many areas behind the storm system this evening, with northwest to north winds over Southwestern Santa Barbara County. The winds will subside overnight, but expect a repeat of gusty Sundowner winds, somewhat stronger than tonight but likely still below Advisory level. In addition, gusty southwest to west winds will affect the interior passes and canyons into the Antelope Valley.
Today's highs were below normal, with mid to upper 60s along the coast and valleys, and around 60 over the far interior. Expect a warming and drying trend Tuesday into Wednesday, highs rising 4 to 8 degrees for most areas on Tuesday, with an additional few degrees of warming on Wednesday.
(Fri-Mon), 13/314 AM.
An inside slider is expected to work its way down the state line on Thursday, followed by dry NW to N flow on Friday. Thursday morning will feature onshore flow to the east and offshore flow from the north. On Friday there will be weak offshore flow from both the north and east in the morning.
There will not be much wind on Thursday, but Thursday night and Friday decent north flow will develop in the mtns with advisory level gusts likely through the I-5 corridor and the Santa Barbara county mountains.
Max temps will not change much on Thursday, but the offshore flow will bring 2 to 4 degrees of warming to most of the area on Friday.
On Saturday the upper flow turn westerly. There will still be some offshore flow at the sfc, but with no upper support it will only generate sub advisory canyon winds. Max temps will respond to the continued offshore flow and 3 to 5 degrees of additional warm seems likely. This will bring max temps up into the upper 70s to mid 80s for most of csts/vlys which is 4 to 8 degrees above normal.
Mdls are struggling a bit with the pattern for Sunday. All mdls show a large upper low spinning somewhere to the NW but there is massive disagreement on the location. For now the forecast is similar to Saturday with just a little cooling across the csts as the offshore flow weakens.
14/0206z.
At 2138Z at KLAX, there was no marine layer or inversion.
Overall, high confidence in 00Z TAF package as VFR conditions are expected for most sites through the period. There is a 30-40% chance for MVFR cigs at KPRB after 10Z.
KLAX, High confidence in 00Z TAF as VFR conditions are expected through the period. No significant easterly wind component is expected.
KBUR, High confidence in 00Z TAF as VFR conditions are expected through the period.
13/1021 PM.
For the Outer Waters, moderate to high confidence in current forecast. Tonight through Friday, high confidence in a combination of Small Craft Advisory (SCA) level winds and seas. On Thursday and Thursday night, there is a 30-40% chance of GALE force winds. For Saturday, there is a 30-40% chance of SCA level winds.
For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. Current SCA was extended until 1 AM tonight due to lingering strong winds. Tuesday through Thursday, high confidence in SCA level winds during the afternoon and evening hours. On Friday and Saturday, there is a 30-40% chance of SCA level winds in the afternoon and evening hours.
For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. The current SCA was extended into early Tuesday morning with gusty winds lingering. For Tuesday through Thursday, there is a 60-80% chance of SCA level winds across the western half of the Santa Barbara Channel, but only a 20-30% chance of SCA level winds elsewhere. For Friday through Saturday, high confidence in winds and seas remaining below SCA levels.
Ca, NONE. PZ, Small Craft Advisory in effect until 1 AM PDT Tuesday for zones 645-655. (See LAXMWWLOX). Small Craft Advisory in effect until 4 AM PDT Tuesday for zone 650. (See LAXMWWLOX). Small Craft Advisory in effect until 9 PM PDT Tuesday for zones 670-673-676. (See LAXMWWLOX).
