San Clemente Island CA to Guadalupe Island from 60 NM offshore west to 120W Offshore Forecast
|Today...W To Nw Winds 5 To 15 Kt, Becoming 5 To 10 Kt. Seas 4 To 6 Ft.|
|Tonight...W To Nw Winds 5 To 10 Kt, Becoming 5 To 15 Kt. Seas 4 To 6 Ft.|
|Sat...W To Nw Winds Less Than 10 Kt. Seas 4 To 5 Ft.|
|Sat Night...W Winds 5 To 10 Kt, Becoming W To Nw 5 To 15 Kt. Seas 4 To 5 Ft.|
|Sun...W To Nw Winds 5 To 10 Kt. Seas 4 To 5 Ft.|
|Sun Night...W To Nw Winds 5 To 15 Kt, Becoming Nw 5 To 10 Kt. Seas 4 To 6 Ft.|
|Mon...Nw Winds 5 To 10 Kt, Becoming 5 To 15 Kt. Seas 5 To 7 Ft.|
|Mon Night...Nw Winds 5 To 15 Kt. Seas 5 To 6 Ft.|
|Tue...Nw Winds 10 To 20 Kt. Seas 5 To 7 Ft.|
|Tue Night...Nw Winds 10 To 20 Kt. Seas 7 To 12 Ft.|
| 123 PM PST Wed Dec 1 2021 |
Synopsis for the far southern California coast - PZZ700
At 1 PM, areas of dense fog with visibility 1 NM or less continued over the coastal waters, and patchy dense fog will likely continue through early Thursday morning. Otherwise, a 1030 mb high was over southeast Idaho and a 1016 mb low covered the Southern California Bight. Neutral flow will continue with light winds through early next week, but with some strengthening in onshore flow late Friday and Saturday.
| Area Forecast Discussion|
National Weather Service San Diego CA
146pm PST Wednesday Dec 1 2021
Weak Santa Ana winds will continue.nue to diminish into this evening. Areas of dense fog expected along the coast tonight through Thursday morning. Cooler conditions expected Thursday through Saturday. Night and morning low clouds and fog will become more widespread for the end of the week, reaching portions of the valleys. Santa Ana winds and warm conditions will return Sunday and Monday.
For Extreme Southwestern California Including Orange... San Diego...Western Riverside and Southwestern San Bernardino Counties
Key Points: *Areas of dense fog expected along the coast through Thursday morning. *Cooler conditions Thursday through Saturday. *Santa Ana winds expected Sunday and Monday
At 1 PM, areas of dense fog are impacting the beaches, mainly in northern Orange County with patchier fog coverage further south. Fog is expected to become more widespread along the coast and spread further inland tonight. Locally dense fog is expected, especially near higher coastal terrain. Dense fog has the potential to impact the morning commute Thursday morning. The marine layer is expected to deepen Thursday night into Friday, moving areas of fog further inland.
The ridge of high pressure that is centered across the western US and a low pressure system to the southwest approaching Baja California will begin to move east today. Southern California will become more influenced by the low, increasing onshore flow starting Thursday. Onshore flow will prevail through Saturday, spreading cooler conditions inland and bringing coastal low clouds and fog into portions of the valleys through Saturday.
The pattern changes for Sunday and Monday, bringing another round of Santa Ana winds to Southern California. Gusty northeast to east winds, above average temperatures, and dry conditions expected. ECMWF (European Centre for Medium-Range Weather Forecasts) global ensemble members on the 12Z run Wednesday are trending weaker in wind speed for Sunday and Monday compared to the 00Z run Wednesday. Global ensembles continue to show a significant warm up on Sunday and Monday. Early next week, the pattern shifts again as a longwave trough pushes into the Pacific Northwest Monday, with the influences reaching Southern California by Tuesday. Winds will turn back onshore and temperatures will fall noticeably for Tuesday.
Patchy dense fog will likely continue overnight and early Thursday with visibility below 1 NM. Otherwise, no hazardous marine weather conditions are expected through Monday.
Morning king tides near 7 feet Friday through Sunday could lead to minor coastal flooding. Surf will remain relatively small.
Weak Santa Ana winds will continue.nue diminish through the afternoon. Very dry conditions will continue.nue this afternoon with minimum relative humidity values 10-20%, leading to elevated fire weather conditions across the mountains and valleys.
Winds will turn onshore on Thursday, with cooler temperatures and higher relative humidity values spreading inland through Saturday. Santa Ana winds will redevelop for the second half of the weekend into early next week, with elevated to near critical fire weather conditions possible for the mountains, valleys and inland Orange County.
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
NOAA San Diego CA Office: Watches - Warnings - Advisories
CA...Dense Fog Advisory from 8pm this evening to 10am PST Thursday for Orange County Coastal Areas-Orange County Inland Areas- San Diego County Coastal Areas-San Diego County Valleys.