textproduct: Los Angeles

SYNOPSIS

30/1000 PM.

Temperatures will cool further Tuesday and will end up closer to normal for the first time in a while. Similar temperatures will continue through Thursday. Gusty onshore winds will affect the area at times. There is a slight chance of light rain Tuesday and Tuesday night. Moderate to strong offshore winds with significant warming and drying will follow Friday through Sunday.

LONG TERM (FRI-MON)

30/1003 PM.

Upper level ridging will build into the area from the W Fri thru Sat followed by generally weak upper level troffiness Sun thru Mon.

It looks like northerly to northeast pressure gradients will increase enough for strong and gusty northerly winds to develop over the mtns Fri evening. These winds will likely transition to northeast by Sat morning in the usual wind corridors of VTU/L.A Counties, with this pattern continuing Sat night into Sun morning. Advisory level winds will be possible at this time.

Dry weather can be expected during the extended period. Temps will also turn warmer from near normal on Fri to as much as 8 to 13 deg above normal by Sun. On Sun, the warmest vlys, such as the western San Fernando Vly, could see high temps in the upper 80s to near 90. It should then turn slightly cooler Mon but still remain about 6 to 12 deg above normal across the region.

AVIATION

31/0545Z.

At 0519Z over KLAX, the marine layer was 1600 ft deep. The top of the inversion was at 3100 feet with a temperature of 19 C.

Moderate confidence in TAFs (High confidence in TAFs for KPMD and KWJF). MVFR cigs are possible at all sites through 22Z. There is a 60 percent chc of -SHRA north of Pt Conception and a 20 percent chc south.

KLAX...Moderate confidence in TAF. BKN015-020 cigs could last until 22Z. There is a 20 percent chc of -RA 20Z-00Z. No significant east wind component expected.

KBUR...Moderate confidence in TAF. BKN015-020 cigs could last until 22Z. There is a 20 percent chc of -RA 20Z-00Z.

MARINE

30/835 PM.

High confidence in winds and seas staying under Small Craft Advisory (SCA) levels through Tuesday. A weak frontal system will move across the coastal waters bringing light showers Tuesday morning, mostly north of Point Conception. A few light showers could linger into Thursday across the northern waters.

Strong SCA winds with a moderate chance of low-end GALES is expected to develop for the coastal waters south of Point Conception (including nearshore and the Santa Barbara Channel) Wednesday night, with winds becoming more widespread Thursday and lasting through Friday morning.

Expecting seas to build quickly on Thursday, peaking Thursday night. Seas could briefly reach SCA levels around 10 feet over the outer waters and inner waters north of Point Sal. Seas for the southern inner waters could peak around 4 to 6 feet. Wave heights should drop off rather quickly as winds shift to the northeast Friday morning.

LOX WATCHES/WARNINGS/ADVISORIES

CA...NONE. PZ...NONE.