textproduct: San Diego

SYNOPSIS

Periods of gusty Santa Ana winds will continue into Thursday with warmer high temperatures through Wednesday. For Thursday through Saturday, there will be slight day to day differences in high temperatures followed by a cooling trend for Sunday into the middle of next week. Night and morning coastal low clouds and fog could return as soon as late Thursday night.

SHORT TERM (Today through Thursday)

High pressure aloft will remain centered across northern California with weak to moderate offshore lower-level flow across southern California. Periods of gusty Santa Ana winds will will continue along and below the coastal slopes of the mountains into Thursday. High temperatures will warm for today and Wednesday with the greatest warming for the mountains and valleys. High temperatures on Wednesday will be as much as 12 to 18 degrees above average for the inland valleys with high temperatures ranging from the lower 70s near the coast to the upper 70s to mid 80s for the valleys with the lower 80s for the lower deserts. High temperatures for inland areas will cool a degree or two on Thursday.

LONG TERM (Friday through Monday)

Weak onshore flow will return near the coast with some return of coastal low clouds and fog possible as soon as late Thursday night over the coastal waters and adjacent coastal areas with night and morning low clouds and fog for coastal areas continuing through the weekend into early next week. Not much change in high temperatures is expected for Friday and Saturday. Cooling will begin to spread inland on Sunday and Monday with high temperatures for the valleys still 8 to 12 degrees above average on Monday, in the mid to upper 70s.

It appears that by the middle of next week, high pressure aloft that has been anchored along the West Coast will redevelop farther off the coast, somewhere along 140W longitude by around Wednesday of next week with low pressure developing near the West Coast. However, there remain wide model differences in just how and when this will happen. There should be greater inland cooling by the middle of next week with at least some chance for precipitation returning during the middle or latter portion of next week. NBM chances for measurable precipitation for the coast to the mountains slowly increases from 5 percent on Tuesday to 15 percent on Wednesday and 25 percent on Thursday.

AVIATION

131030Z...Mostly clear skies and VFR conditions today and tonight. East to northeast winds 20-30 kts with isolated gusts to 40 kts in foothills and adjacent valleys. Periods of LLWS with mod up/downdrafts in lee of mountains (including KSNA) through 16Z.

MARINE

No hazardous marine conditions are expected through Saturday.

SKYWARN

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

SGX WATCHES/WARNINGS/ADVISORIES

CA...None. PZ...None.