Point Sal to Santa Cruz Island CA including San Miguel and Santa Rosa Islands Marine Forecast
| Tonight...Nw Winds 10 To 20 Kt. Wind Waves 2 To 3 Ft. Nw Swell 5 Ft At 10 Seconds. S Swell 3 Ft, Then S 5 Ft After Midnight. Areas Of Fog. Vsby 1 Nm Or Less. |
| Thu...Nw Winds 10 To 15 Kt. Wind Waves 2 Ft Or Less. Nw Swell 4 To 5 Ft At 10 Seconds. S Swell 5 Ft, Then S 3 Ft In The Afternoon. Areas Of Fog In The Morning. |
| Thu Night...Nw Winds 10 To 15 Kt In The Evening, Becoming 5 To 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell Nw 4 To 6 Ft At 9 Seconds And S 3 Ft At 15 Seconds. Patchy Fog After Midnight. |
| Fri...Nw Winds 5 To 10 Kt, Becoming 10 To 20 Kt In The Afternoon. Wind Waves 2 To 3 Ft. Mixed Swell Nw 4 To 5 Ft At 9 Seconds And S 3 Ft At 14 Seconds. Patchy Fog In The Morning. |
| Fri Night...Nw Winds 15 To 25 Kt. Combined Seas 5 To 6 Ft Dominant Period 8 Seconds. |
| Sat...Nw Winds 15 To 25 Kt With Gusts To 30 Kt. Combined Seas 5 To 6 Ft Dominant Period 8 Seconds, Building To 7 To 9 Ft Dominant Period 8 Seconds In The Afternoon. |
| Sat Night...Nw Winds 20 To 30 Kt With Gusts To 35 Kt In The Evening, Becoming 15 To 25 Kt With Gusts To 30 Kt. Combined Seas 8 To 10 Ft Dominant Period 7 Seconds. |
| Sun...Nw Winds 15 To 25 Kt. Combined Seas 7 To 10 Ft. |
| Mon...Nw Winds 10 To 20 Kt. Wind Waves 2 To 4 Ft. Nw Swell 7 To 9 Ft. Patchy Fog. |
| Area Forecast Discussion ...UPDATED National Weather Service Los Angeles/Oxnard CA 1007pm PDT Wednesday April 17 2024 Synopsis 17/938 PM. High pressure keeps dry conditions in the area for the near future, and low clouds and fog during the nigheights and morning will reoccur through Friday. A warming trend is expected for the weekend before cooler temperatures return next week. Short Term - Wednesday through Saturday 17/1007 PM. ***UPDATE*** Another warm day of high pressure was in store for today, with the exception of the southern coastal waters and coasts where a solid deck of marine layer clouds lingered south of Point Conception. Temperatures warmed into the upper 70s and 80s over much of the region, however most coastal valleys and coasts south of Point Conception ended up a few degrees cooler than yesterday due to more onshore flow. Tonight, marine layer clouds have been slow to form in part due to all the high clouds in the region. Low clouds and patchy fog are expected to move into most coasts and coastal valleys overnight. There is still potential for dense fog close to the ocean early Thursday morning. Low pressure moves through the region Friday, so expecting a deepening marine layer pushing further deeper into the valleys Friday morning. Expecting warming temperatures Saturday as ridging returns. The current forecast looks on track, but will need to consider if more marine layer clouds will form Friday night/Saturday AM. ***From Previous Discussion*** A relatively quiet period of weather coming up over the next several days. A weak trough is approaching the West Coast with a ton of high clouds. Otherwise the main impact will be increasing onshore flow and marine layer stratus (as those near the coast south of Pt Conception today can attest to) and cooler temperatures through Friday. Forecast soundings only indicate minor deepening of the marine inversion tonight so there will still be areas of dense fog near the coast and just very little if any valley fog intrusion expected. The cooler onshore flow mainly just reached the coastal areas but by tomorrow and Friday cooling will reach all the way into the interior with highs topping out in the mid to upper 70s versus the 80s today. The cooling trend will reverse over the weekend with a brief but effective ridge over California this weekend. Temperatures should bounce back to the 80s inland with a 10-20% chance of an isolated 90 or two in the warmest valleys Sunday. Long Term - Sunday through Wednesday 17/207 PM. The weekend ridge will be short lived as the next weak trough is expected to hit the West Coast late Monday and likely remain in place through the week. This will generate significant cooling across the area with a likely return of a deep marine layer by mid to late week. Ensembles have been hinting at some precipitation chances as well, though those were likely associated with a small percentage of solutions that showed the upper low cutting off and dropping much farther south along the coast. A majority favor an open wave solution with the upper low over Oregon and extreme northern California. There are some deeper trough solutions later in the week and into next weekend that could squeeze out some light precipitation by next weekend, probably more in the form of deep marine layer drizzle. In any case, it looks like a long duration of well below normal temperatures across the area starting next week. Marine 17/947 PM. A very shallow marine layer will continue to bring dense fog to most waters south of Point Conception into this morning. There is a chance that dense fog will also form off the Central Coast, but low confidence. Improved but still reduced visibility is expected during the day. High confidence in generally light winds through Friday. Southeast winds around 10 knots are expected each morning from the Santa Barbara Channel to Orange County, with some local enhancements through the Anacapa Passage and San Pedro Channel. Northwest winds will be increasing over the weekend. NOAA Los Angeles/Oxnard CA Office: Watches - Warnings - Advisories CA...NONE. PZ...Small Craft Advisory in effect until 3am PDT Thursday for zone 670. |
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