05/441 PM.
Light offshore winds will weaken through tonight. Benign weather will continue through the weekend with a low chance of morning coastal low clouds and fog. A significant warming trend will begin Sunday with temperatures well above normal Monday through next Friday, peaking Tuesday through Thursday. Offshore winds will increase Sunday and Monday and continue into much of the week.
(tdy-Mon), 06/1242 AM.
A Chamber of Commerce weekend is on tap for Srn CA. A ridge poking in from the west bringing hgts around 582 dam. Weak offshore flow should keep the low clouds away, but there is about a 10 percent chc that the LA south coast and SBA county west coast will see some morning low clouds and dense fog. There may be some local canyon winds in the morning, but nothing near advisory levels.
Max temps will be the main talking point. Weaker offshore flow this morning will bring some cooling to the VTA/LA csts and vlys. But the rest of the area will see warming esp the Antelope Vly where the lack of cool air advection will bring 8 to 10 degrees of warming. On Sunday, sunny skies, higher than normal hgts and the offshore flow will all combine to bring 3 to 6 degrees of warming to the csts/vly S of Pt Conception and 1 to 2 degrees of warming elsewhere. Sunday's max temps will be 3 to 5 degrees above normal at the csts and 5 to 10 degrees inland.
Stronger offshore flow will bring 20 to 25 mph canyon gusts to some areas in the morning. Hgts rise to 584 dam and this along with the better offshore flow will allow max temps to rise 3 to 6 degrees to the csts/vly S of Pt Conception and 1 to 2 elsewhere. This warming will bring some max temps up into the lower 80s in the warmest LA/VTA vly areas. Most areas away from the coast will end up 10 to 12 degrees above normal.
(Tue-Fri), 06/255 AM.
The GFS has now trended towards the warmer EC solution and it seems pretty certain that all of next week will be a very warm one. Upper level high pressure will sit atop of the state and hgts will vary between 584 dam and 586 dam. These hgts are about 15 dam higher than the normal value of 571 dam. Offshore flow will continue through the period with a peak on Tuesday.
Cannot rule out some morning low clouds in the LGB-LAX area on any given morning but right now it looks like the chance of this happening is under 50 percent.
There will be some canyon winds but the only chance of advisory level gusts will be Tuesday morning and they will be more from the north than the NE.
Max temps will be the name of the game for the entire week. Coastal temperatures will vary the most heating or cooling depending on the sfc gradient trends. The current thinking for coastal temps is for for a 3 to 5 degree rise on Tuesday bring max temps into the mid 70s to lower 80s (lower 70s right at the beaches). A degree or two of cooling each day Wed and Thu will bring the temps down into the upper 60s and 70s. Most coastal max temps S of Pt Conception will be 4 to 8 degrees above normal. The Central Coast will exceed that with temps coming 10 to 15 degrees over normal. The interior will see two days of warming Tue and Wed and then little change Thu and Fri. People can expect to see 80s in the vlys (with a 30 to 40 percent chc of some lower 90s). The lower elevations of the mtns and all of the far interior will have max temps in the 70s. These max temps are 12 to 18 locally 20 degrees above normal.
Looking further ahead it appears that there will be some cooling next weekend but max temps will remain well above normal.
06/1040z.
At 0910Z, there was no marine layer depth at KLAX, but there is a surface-based inversion up to around 2000 feet with a temperature around 17 degrees Celsius.
VFR conditions are expected through at least 03Z Sunday, but there is a very low chance of VLIFR to LIFR conditions through 16Z at coastal terminals. After 03Z Sunday at coastal terminals, there is a low-to-moderate chance of VLIFR to LIFR conditions through 08Z Sunday increasing to a moderate chance of VLIFR to LIFR conditions after 08Z Sunday.
KLAX, There is a less than 10 percent chance of VLIFR to LIFR conditions through 16Z, otherwise VFR conditions are expected. There is a 20 percent chance of VLIFR to LIFR conditions after 03Z Sunday increasing to a 30 percent chance after 08Z Sunday. Any east winds should remain less than 7 knots.
KBUR, VFR conditions are expected through the period. No wind impacts are expected at this time.
06/717 AM.
For the waters southwest through northwest of the Channel Islands beyond 10 NM offshore of the Central Coast, low-end Small Craft Advisory conditions expected at times through much of next week, especially across the north and western portions of PZZ670/673 during the afternoon and evening hours.
Inside the southern California bight, high chance of winds and seas remaining below SCA levels through Monday night. Moderate chance of offshore winds from Ventura through Santa Monica through Tuesday afternoon. Guidance suggests winds and seas should remain below SCA levels thereafter through the work week.
There is a moderate chance of dense fog over the coastal waters tonight through tomorrow. Likely south of Point Conception. Confidence remains low on timing and coverage.
Ca, Beach Hazards Statement in effect until 11 AM PST this morning for zones 87-349-350-354-362-366. (See LAXCFWLOX). PZ, Small Craft Advisory in effect until 3 AM PST Monday for zones 670-673. (See LAXMWWLOX).
