textproduct: San Diego

SYNOPSIS

High temperatures will cool into the weekend with high temperatures on Saturday as much as 4 to 8 degrees below average for the mountains and inland valleys. The marine layer will slowly deepen with night and morning coastal low clouds spreading farther into the inland valleys by the weekend. Southwest to west winds for the mountains and deserts during the afternoon and evening will gust to 25 to 35 mph through Friday. There will be a warming trend for next week with high temperatures for inland areas warming to 5 to 10 degrees above average by the middle of next week.

SHORT TERM (Today through Friday)

The NKX sounding on Tuesday before sunrise showed the beginning of the drying of the mid level moisture with the drying aloft continuing into the weekend as a weak low pressure system moving toward the California coast brings drier southwest flow aloft. With the drying aloft, low temperatures for inland areas will be cooler with low temperatures for inland areas around 10 degrees cooler than those of the past few days by the end of the week. In addition to drying aloft, the marine layer will slowly deepen with coastal low clouds spreading farther into the inland valleys for early Thursday and early Friday.

Cooling of high temperatures will continue to spread inland into the weekend. High temperatures on Friday will range from slightly below average near sea level to 4 to 8 degrees below average for the mountains and inland valleys. High temperatures on Friday will range form around 70 near the coast to the upper 70s to mid 80s for the Inland Empire with 100 to 104 for the lower deserts.

Southwest to west winds for the mountains and deserts during the afternoon and evening will be stronger with gusts to 25 to 35 mph with gusts to 50 mph in the northern Coachella Valley below the San Gorgonio Pass.

LONG TERM (Saturday through Tuesday)

There will be slight additional cooling on Saturday followed by slight warming on Sunday. There will be greater warming of around 5 degrees per day for Monday and Tuesday with Tuesday high temperatures ranging from within a few degrees of average for the coast and valleys to 4 to 8 degrees above average for the deserts. High temperatures on Tuesday will range from the lower 70s near the coast to the mid 80s to upper 90s for the Inland Empire with 106 to 110 for the lower deserts. High temperatures for the latter half of next week for inland areas could warm another 5 degrees or so.

AVIATION...170930Z...Coast/Valleys

Low clouds based 1200-1700 feet MSL will push into inland valleys 15-20 miles inland by 12Z. There is a 40% chance for clouds to make it into the far northwest and south portions of the Inland Empire, including vcnty KONT, 12- 16Z. Vis reduced to 3-5 SM in higher inland valleys. Scatter out 16- 18Z Wed, then clouds will begin to fill back in after 01Z Thu, with higher bases 1500-2000 ft MSL, which will move to cover most inland valleys overnight.

Mountains/Deserts...Mostly clear with VFR conditions through the period. Breezy westerly to southwesterly winds will pick up after 18Z, with gusts 25-40 kts through mountain passes and into deserts through 08Z Thu.

MARINE

No hazardous marine conditions are expected through Sunday.

BEACHES

Elevated surf and strong rip currents continue through Friday. Surf of 3-5 feet with sets to 6 feet are expected at south-facing beaches. Surf for southern San Diego County will be slightly lower, but hazardous swimming conditions with high rip current and longshore current risk will still exist. See the Beach Hazards Statement for more details.

SKYWARN

Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.

SGX WATCHES/WARNINGS/ADVISORIES

CA...Beach Hazards Statement through Friday evening for Orange County Coastal Areas-San Diego County Coastal Areas.

PZ...None.