15/242 AM.
Warm but below normal temperatures will continue through Thursday, with expanding coastal morning low clouds. Temperatures are likely to increase towards the end of the week.
(tdy-Thu), 15/242 AM.
Pretty unexciting weather on tap for the short term. At the upper levels WSW flow will turn SW as an upper low moves into far nrn CA. Hgts will be around 587 dam. Mdt ocnl stg onshore flow will persist through the period.
Today a fairly strong eddy has spun up and the marine layer is currently 2200 ft and is rising under the eddy's influence. Most of the csts and vlys will wake up to a blanket of low clouds. The lift from the eddy may even produce some drizzle esp near the foothills. There will also be slower than normal clearing esp near the csts. Max temps will fall 2 to 4 degrees. Cst/Vly max temps will end up mostly in the mid 70s to mid 80s which is mostly 3 to 6 degrees blo normal.
Wednesday will be very similar day to today. Look for another robust marine layer in the morning. Most max temps will fall another 1 or 2 degrees.
The eddy looks like it will fizzle out some on Thursday morning and this will lead to less morning low clouds in the vlys and slightly faster clearing. The added sunshine will be countered by the lower hgts and max temps will be little changed.
(Fri-Mon), 15/242 AM.
Not much going on in the xtnd very weak ridging moves into the area Friday and continues into Saturday hgts may approach 588 dam. Mdt onshore flow will continue to the east. There will be weak offshore flow in the morning from the north but it will turn to weak onshore flow in the afternoon. The morning offshore push should reduce (but not eliminate) the morning low cloud coverage. Look for 2 to 4 degrees of warming each day. This will lead to max temps in the 70s and lower 80s across the csts and 80s in the vlys on Saturday. Despite the warming these max temps are still 2 to 4 degrees blo normal.
A weak, high hgt and dry upper low will move into the area Sunday and Monday. Its effects will be minimal, just an increase in marine layer clouds and a few degrees of cooling.
15/0942z.
At 0832Z at KLAX, the marine layer was 2600 feet deep. The top of the inversion was at 4400 feet with a temperature of 19 C.
High confidence in TAFs for KPRB, KPMD & KWJF
Moderate confidence in the remainder of the TAFs where cigs may rise faster than fcst and VFR conds may arrive up to 90 minutes later than fcst. There is a 30 percent chc of -DZ.
KLAX, Moderate confidence in TAF. Cigs may rise faster than fcst. VFR conds may arrive as late as 2130Z. Good confidence that there will be a greater than 8kt east wind component best chances 12Z-16Z.
KBUR, Moderate confidence in TAF. Cigs may rise faster than fcst. VFR conds may arrive as late as 2100Z.
15/803 AM.
Small Craft Advisory (SCA) winds and seas over the outer waters are subsiding, but we will extend the current suite of SCAs through noon as steep, short period seas will linger. High confidence in relatively light winds over the area through Thursday morning, with a return of normal outer waters (and potentially Santa Barbara Channel) northwest SCA winds for Thursday night into the weekend. These winds will generate a building short period swell over all waters.
Stronger than usual southeast winds will likely continue through later this morning south of Point Conception. Gusts of 15-20 knots are possible and locally choppy seas could make conditions hazardous for smaller craft.
Ca, NONE. PZ, Small Craft Advisory in effect until noon PDT today for zones 670-673. (See LAXMWWLOX).
