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PMZ009 Mexico Border S To 29n Within 60 Nm Of Shore- 807 Am Pst Wed Dec 6 2023
Today..N to ne winds 10 kt, shifting to W to nw in the afternoon. Seas 6 to 9 ft in nw swell. Period 20 seconds.
Tonight..NW winds 10 to 15 kt. Seas 7 to 11 ft in W to nw swell. Period 19 seconds.
Thu..NW winds 15 to 20 kt. Seas 7 to 11 ft in W to nw swell. Period 17 seconds.
Thu night..NW winds 15 to 20 kt. Seas 7 to 11 ft in W to nw swell. Period 15 seconds.
Fri..NW winds 15 to 20 kt. Seas 7 to 11 ft in W to nw swell. Period 13 seconds.
Fri night..NW to N winds 15 to 20 kt. Seas 7 to 10 ft in W to nw swell. Period 13 seconds.
Sat..N winds 10 kt. Seas 6 to 9 ft in W to nw swell. Period 12 seconds.
Sat night..N winds 10 to 15 kt. Seas 6 to 8 ft in W to nw swell. Period 12 seconds.
Sun..NW to N winds 10 kt. Seas 5 to 7 ft in W to nw swell. Period 11 seconds.
Sun night..NW to N winds 10 kt. Seas 3 to 5 ft. Period 12 seconds.

PMZ005
No data

FXUS66 KSGX 061612 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 812 AM PST Wed Dec 6 2023

SYNOPSIS
Onshore flow will return today and strengthen tonight and Thursday as the marine layer deepens with coastal low clouds and fog returning to the valleys for tonight into Thursday morning. There will be stronger and gusty southwest to west winds for the mountains and deserts for late tonight through late Thursday night with the stronger gusts to around 55 mph. Lower level flow will turn offshore for Friday into the weekend. Gusty north winds will strengthen on Friday, then become northeasterly and spread southward into Riverside and San Diego Counties for Friday night into Saturday with the stronger gusts along and below the coastal slopes of the mountains to 55 to 65 mph. Gusty northeast to east winds will continue for Saturday night into Sunday, but not be as strong. Warmer for Sunday. Then slow cooling spreading inland on Monday and Tuesday as weak onshore flow returns.

DISCUSSION
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

Morning Update
Thin cirrus clouds are currently poised across the region with blotches of fog offshore. Confidence remains low to moderate for any of this fog to the reach the beaches later this morning. If any fog does form, it looks to be brief. Onshore flow will be increasing today and this is evident by a surge of low clouds pushing westward across the California Bight. These low clouds may move over our region by later this afternoon, higher chance by early evening.

Another warm day is expected today, though a bit cooler west of the mountains as onshore flow increases. High temperatures will be in the 70s for most across western valleys and near 80 degrees for the lower deserts. Winds will be on the calmer side for much of the day before ramping up across the mountains and deserts this evening through Thursday. Santa Ana winds will then take over by Friday. We will continue to fine tune the forecast this afternoon to see how far west these Santa Ana winds will impact valley and coastal areas.

.Previous Discussion (403 AM Wednesday)....

SHORT TERM (Today through Friday)...
A more widespread return of low clouds and fog is more likely along the coast this afternoon with the low clouds spreading into portions if the valleys this evening as the marine layer deepens and into portions of the inland valleys for late tonight into Thursday morning. A deeper marine layer will continue for Thursday night with coastal low clouds scattering out from north to south on Friday as gusty north to northeast winds develop and strengthen.

Gusty southwest to west winds will develop in the mountains and deserts today and strengthen for tonight and Thursday as onshore flow strengthens with the stronger gusts along the desert slopes of the mountains in Riverside and San Diego Counties and in the northern Coachella Valley below the San Gorgonio Pass to 55 to 65 mph. The onshore winds will diminish late Thursday night with gusty north winds developing and strengthening on Friday. These winds will become northeast for Friday night into Saturday morning and spread southward into Riverside and San Diego Counties with the stronger gusts along and below the coastal slopes of the mountains to 55 to 65 mph.

High temperatures will begin to cool for the coast and valleys today with greater cooling spreading inland on Thursday. The coast into the valleys will warm slightly on Friday with cooling continuing for the deserts into the mountains.

.LONG TERM (Saturday through Tuesday)...
Stronger and gusty northeast winds will continue into Saturday morning, then gradually diminishing for Saturday night and Sunday.
Weak offshore flow on Monday morning will become weak onshore for Monday afternoon and night and a little stronger onshore for Tuesday.

High temperatures for Saturday will warm for coastal areas into the valleys and cool for the mountains and deserts. Sunday will be a few degrees warmer near the coast to as much as 5 to 10 degrees warmer for inland areas with high temperatures for the coast and valleys mostly in the 70s. Monday will be slightly cooler for the coast and valleys and slightly cooler for most areas on Tuesday.

AVIATION
061610Z
Coast/Valleys
Low clouds with bases 700-900 FT MSL to develop after 23z Wed at the coast and move inland after 01z Thu.
Rising bases after 04z Thu with bases to 1000-1500 FT MSL. Locally reduced vis where low clouds and terrain intersect. Scatter out 17- 19z Thu.

Mountains/Deserts...FEW AOA 25,000 FT MSL through tonight. W-NW winds developing after 01z Thu with sfc gusts of 25-40 kt. MOD up/downdrafts over/east of mtns. Stronger gusts of 40-55 kt possible after 18z Thu.

MARINE
Northwest wind gusts of 20 to 25 knots will be possible Thursday afternoon into Friday morning over the outer coastal waters.
Isolated northeast wind gusts to 20 knots near the coast will be possible Friday night and Saturday.

BEACHES
A long-period swell (17 seconds late today lowering to 14 seconds by Friday with swell heights 4-5 feet) from the west-northwest will bring elevated surf late today into Friday. The highest surf is expected Thursday, mainly in southern San Diego County. Confidence is increasing that wave heights will range from 3 to 6 feet for most areas with sets to 7 feet in southern San Diego County.

SGX WATCHES/WARNINGS/ADVISORIES
CA...Beach Hazards Statement through late Thursday night for Orange County Coastal Areas-San Diego County Coastal Areas.

PZ...None.

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Ensenada
Click for Map
Wed -- 12:27 AM PST     Moonrise
Wed -- 04:55 AM PST     1.28 meters High Tide
Wed -- 06:32 AM PST     Sunrise
Wed -- 11:13 AM PST     0.60 meters Low Tide
Wed -- 12:57 PM PST     Moonset
Wed -- 04:23 PM PST     0.99 meters High Tide
Wed -- 04:42 PM PST     Sunset
Wed -- 10:27 PM PST     0.34 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Ensenada, Baja California Norte, Mexico, Tide feet

Ensenada
Click for Map
Wed -- 12:27 AM PST     Moonrise
Wed -- 04:48 AM PST     1.28 meters High Tide
Wed -- 06:32 AM PST     Sunrise
Wed -- 11:03 AM PST     0.62 meters Low Tide
Wed -- 12:57 PM PST     Moonset
Wed -- 04:14 PM PST     1.01 meters High Tide
Wed -- 04:42 PM PST     Sunset
Wed -- 10:21 PM PST     0.35 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Ensenada, Baja California Norte, Mexico (2), Tide feet

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