textproduct: Los Angeles

SYNOPSIS

16/910 AM.

Dangerously hot temperatures are expected this week, peaking Wednesday through Friday. There is a HIGH risk for heat illness this week, with conditions remaining warm overnight adding to the heat risk.

LONG TERM (FRI-MON)

16/215 PM.

Little or no change in the pattern Friday with all advisories and warnings remaining in effect.

Saturday and Sunday, models suggest that the high pressure will start to flatten out, and temperatures will finally start to decrease again. For Saturday, there is a 50% chance that some heat products will need to extended through the evening hours, mainly inland from the beaches. However by Sunday, things should cool down rather noticeably. Therefore, no heat products are anticipated.

As for rain chances, deterministic models (and their respective ensembles) indicate some possibility of light showers after the 25th. However, no significant storms are indicated for Southern California through the end of the month.

AVIATION

16/2133Z.

Around 20Z at KLAX, the marine layer was 400 ft deep. The top of the inversion was at 1100 ft with a temperature of 26 C.

Moderate confidence in coastal TAFs KSBA to KLGB including KLAX 00Z-15Z with a 20-30 percent chance of LIFR or lower cigs/vsbys. High confidence in VFR otherwise and elsewhere with generally light winds.

KLAX...Moderate confidence 00Z-15Z with a 20-30 percent chance of LIFR or lower cigs/vsbys.

KBUR...High confidence in VFR TAF.

MARINE

16/228 PM.

Conditions are expected to remain benign through at least mid- week across all waters. The only exception could be offshore gusty winds at times across nearshore favored locations. These winds will likely remain below Small Craft Advisory (SCA) levels. Moderate chances for SCA level winds starting either Thursday or Friday across the northernmost outer waters, potentially becoming more widespread into the weekend.

Dense fog is possible at times this week.

LOX WATCHES/WARNINGS/ADVISORIES

CA...Heat Advisory remains in effect until 10 AM PDT Tuesday for zones 87-88-340>342-345>358-362-366>376-378>380-548. (See LAXNPWLOX). Heat Advisory remains in effect from 10 AM Tuesday to 8 PM PDT Friday for zones 87-340-341-346>350-354-355-362-366-367-549-550. (See LAXNPWLOX). Extreme Heat Warning in effect from 10 AM Tuesday to 8 PM PDT Friday for zones 88-342-345-351>353-356>358-368>376-378>380-548. (See LAXNPWLOX). Beach Hazards Statement in effect through Wednesday evening for zones 354-362-366. (See LAXCFWLOX). PZ...NONE.