Marine Weather Net

Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands Marine Forecast


TODAY

NW
WINDS
15 - 25
KNOTS

TONIGHT

NW
WINDS
25 - 35
KNOTS

SUN

NW
WINDS
25 - 35
KNOTS

SUN NIGHT

NW
WINDS
20 - 30
KNOTS

The Marine Weather Forecast In Detail:
PZZ676 Forecast Issued: 313 AM PDT Sat Jul 20 2024

SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON ...GALE WARNING IN EFFECT FROM THIS AFTERNOON THROUGH SUNDAY EVENING...
Today...Nw Wind 15 To 25 Kt, Becoming 20 To 30 Kt With Gusts To 35 Kt This Afternoon. Seas 6 To 8 Ft. Wave Detail: Nw 7 Ft At 8 Seconds And S 2 Ft At 14 Seconds. Patchy Dense Fog This Morning With Vsby 1 Nm Or Less.
Tonight...Nw Wind 25 To 35 Kt. Seas 7 To 10 Ft. Wave Detail: Nw 10 Ft At 9 Seconds And S 2 Ft At 14 Seconds. Patchy Fog After Midnight.
Sun...Nw Wind 25 To 35 Kt. Seas 7 To 10 Ft. Wave Detail: Nw 9 Ft At 9 Seconds And S 2 Ft At 14 Seconds. Patchy Fog In The Morning.
Sun Night...Nw Wind 20 To 30 Kt With Gusts To 35 Kt, Becoming 15 To 25 Kt After Midnight. Gusts To 35 Kt. Seas 6 To 9 Ft. Wave Detail: Nw 8 Ft At 9 Seconds And S 2 Ft At 15 Seconds. Patchy Fog After Midnight.
Mon...Nw Wind 15 To 25 Kt, Becoming 10 To 20 Kt In The Afternoon. Seas 5 To 7 Ft. Wave Detail: Nw 7 Ft At 9 Seconds And S 2 Ft At 14 Seconds. Patchy Fog In The Morning.
Mon Night...Nw Wind 10 To 15 Kt, Becoming W 5 To 10 Kt After Midnight. Seas 5 To 7 Ft. Wave Detail: Nw 5 Ft At 10 Seconds And S 2 Ft At 14 Seconds. Patchy Fog After Midnight.
Tue...Light Winds, Becoming W 5 To 10 Kt In The Afternoon. Seas 4 To 6 Ft. Wave Detail: Nw 5 Ft At 10 Seconds And S 2 Ft At 13 Seconds. Patchy Fog In The Morning.
Tue Night...W Wind 5 To 10 Kt. Seas 4 To 6 Ft. Wave Detail: Nw 4 Ft At 10 Seconds And S 3 Ft At 12 Seconds. Patchy Fog After Midnight.
Wed...W Wind 5 To 10 Kt. Seas 4 To 6 Ft. Wave Detail: Nw 4 Ft At 9 Seconds And S 3 Ft At 12 Seconds. Patchy Fog In The Morning.
Wed Night...W Wind 10 To 20 Kt. Seas 4 To 5 Ft. Wave Detail: W 4 Ft At 9 Seconds And S 3 Ft At 15 Seconds. Patchy Fog After Midnight.
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Area Forecast Discussion
...UPDATED National Weather Service Los Angeles/Oxnard CA
452am PDT Sat July 20 2024

Synopsis
20/253 AM.

Well above normal temperatures are expected through early next week, especially across the interior areas, with some cooling expected closer to the coast as onshore flow increases. Temperatures across the mountains and far interior areas will be dangerously high, and heat illness will pose a threat to anyone in those locations through early next week. Night and morning low clouds and areas of dense fog will continue near the coast.

Short Term - Today through Monday
...20/400 AM.

Unsurprisingly, heat will continue to be the main story through the middle of next week with temperatures well above normal across the region. A ridge of high pressure will remain over the western states through the majority of the week, resulting in temperatures remaining elevated through the week. Rising 500 mb heigheights will cause interior areas to have a slight warming trend across the mountains and far interior areas including the Antelope Valley through Monday. However, increasing onshore trends and a very shallow marine layer will result in some cooling across the coasts and into coastal valleys.

Temperatures across the far interior mountains will range from 100 to 110 degrees each day, with coastal valleys reaching 95 to 103 degrees, and temperatures in the 70s across the beaches. While being quite warm during the days, the coastal valleys and Santa Clarita Valleys will being on the cooler side (in the 60s) during the night, so HeatRisk remains lower for those locations. Overnight low temperatures for the interior, however, will remain in the 70s (with the Antelope Valley pushing 80s at times) - these temps will provide little relief overnight and increase the risk of heat illness. Therefor, an
Excessive Heat Warning...mains in place through much of the week for the interior mountains and far interior locations, while heat advisories span across the Santa Monica Mountains, Santa Susanna Mountains, Santa Lucia Mountains, and the San Luis Obispo County's portion of the Salinas Valley through Sunday evening.

Winds each afternoon and evening through Sunday will span the interior mountains and interior valleys (including the Antelope Valley and I-5 Corridor), with south to southwest wind gusts of 25 to 40 mph expected. Similar wind gust speeds will be expected for the southwestern portion of Santa Barbara County, however winds will be north to northwesterly and strongest tonight.

Long Term - Tuesday through Friday
20/421 AM.

No significant changes in temperatures early next week so it will remain dangerously hot across the far interior with temperatures up to 12 degrees above normal, while elsewhere remains 4-8 degrees above normal. Slight warming is possible across areas away from the coast on Tuesday and Wednesday due to 500 mb heigheights rising 2-3 dam, with a potential slight decrease in onshore flow. This warming may push some areas into heat advisory territory, particularly across the southern Salinas Valley and warmer parts of the LA/Ventura Valleys. Then, a cooling trend is possible across the entire area as the high pressure aloft begins to weaken on Thursday and Friday, and potentially into the weekend.

Lastly, increasing moisture from the southeast next Tuesday and Wednesday may be enough to bring some thunderstorms back to at least eastern LA County in the afternoons. However, projected PWATs (Precipitable Waters) have trimmed back ever so slightly both days, which could lead to the slight chance of thunderstorms and monsoonal showers being removed from the forecast by future shifts. Otherwise, thunderstorm chances will be under 10% through the period.

Marine
20/424 AM.

Patchy dense fog and low visibilities under one mile are expected to impact the coastal waters through the weekend, and may continue into next week.

High confidence in northwest winds increasing this weekend, with Gale Force wind likely for the outer waters this afternoon through Sunday evening. For the nearshore waters off the Central Coast waters, there is a 60 percent chance for SCA (Small Craft Advisory) conditions this afternoon and evening, and again Sunday.

Across the Santa Barbara Channel, there is moderate-to-high confidence that SCA (Small Craft Advisory) winds and seas will occur for the western portion this afternoon and evening, and again Sunday. There is a 40% chance of SCA (Small Craft Advisory) conditions overspreading the entire channel during these times.

Moderate confidence in conditions falling below advisory levels for all waters by Monday afternoon and remaining below through Wednesday morning. On Wednesday afternoon, a chance for SCA (Small Craft Advisory) level conditions returns for the outer waters.

NOAA Los Angeles/Oxnard CA Office: Watches - Warnings - Advisories
CA...
Excessive Heat Warning...mains in effect until 10pm PDT Wednesday for zones 38-344-345-353-376>383.
Beach Hazards Statement in effect from this evening through late Sunday night for zones 87-354-362-366. (See LAXCFWLOX). Heat Advisory remains in effect until 10pm PDT Sunday for zones 342-343-369-370-375.
Heat Advisory in effect until 9pm PDT this evening for zones 373-548.
PZ...Small Craft Advisory in effect from 3pm this afternoon to 3 am PDT Sunday for zones 645-650.
Small Craft Advisory in effect until 3pm PDT this afternoon for zones 670-673-676.
Gale Warning in effect from 3pm this afternoon to 9pm PDT Sunday for zones 670-673-676.