Marine Weather Net

San Clemente Island CA to Guadalupe Island from 60 NM offshore west to 120W Offshore Forecast


5 - 15


5 - 15


10 - 15


15 - 25

The Marine Weather Forecast In Detail:
PZZ945 Forecast Issued: 1229 AM PST Sun Nov 27 2022

Today...Nw Winds 5 To 15 Kt. Seas 5 To 8 Ft.
Tonight...Nw Winds 5 To 15 Kt. Seas 5 To 8 Ft.
Mon...Nw Winds 10 To 15 Kt, Becoming 10 To 20 Kt. Seas 5 To 8 Ft.
Mon Night...Nw Winds 15 To 25 Kt. Seas 7 To 12 Ft.
Tue...Nw Winds 15 To 25 Kt. Seas 7 To 12 Ft.
Tue Night...Nw Winds 10 To 15 Kt, Diminishing To 5 To 10 Kt. Seas 6 To 10 Ft.
Wed...W To Nw Winds 5 To 10 Kt. Seas 5 To 8 Ft.
Wed Night...W To Nw Winds Less Than 10 Kt. Seas 4 To 7 Ft.
Thu...Variable Winds Less Than 5 Kt, Becoming S To Sw. Seas 4 To 6 Ft.
Thu Night...S Winds 5 To 15 Kt, Increasing To 10 To 20 Kt. Seas 4 To 6 Ft.
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Area Forecast Discussion
National Weather Service San Diego CA
221am PST Sunday Nov 27 2022

A building marine layer and troughing over the region will contribute to cloudier skies, cooler weather and windy conditions in the coming the week. Patchy fog may occur near the coast through the morning hours today as the marine layer builds. An open wave trough will plunge into the western part of the country through Tuesday, bringing in gusty west winds across the mountains and deserts as well as a slight chance of light showers along the coastal mountain slopes by Monday night. Cool and dry weather will continue for the middle of the week. A trough of low pressure will impact the West Coast by the end of the week, where chances of precipiation start to come into the picture.

For Extreme Southwestern California Including Orange... San Diego...Western Riverside and Southwestern San Bernardino Counties
.SHORT TERM (Sunday through Tuesday)... Light offshore flow is battling the thin marine layer early this morning. The offshore push should keep most clouds and fog over the water, but the immediate coast has a slight chance of seeing patchy dense fog throughout this morning. Another nice day will occur for our Sunday, with mostly clear skies and temperatures in the 60s and 70s for many, with 50s expected for the higher elevations.

After today, bid adieu to the near to above normal high temperatures we have been treated to over the past several days. An open wave trough that is currently over the northwestern U.S. will sink south into the Great Basin and Intermountain West over the next couple of days, bringing cooler and windier weather for our area. As the trough axis passes over the region by Monday into Tuesday, gusty west winds will ramp up across the mountains and deserts. Confidence remains high that winds will peak for the evening hours on Monday with gusts 30-45 MPH across many mountain and desert areas, locally over 60 MPH along favored areas along the desert mountain slopes, especially in San Diego County. Driving conditions will be hazardous with possible blowing dust in the deserts and on the roadways, especially on Instates 8 & 10 through the mountains.

.LONG TERM (Wednesday through Next Weekend)... A brief lull in the action will be expected for the middle of the week as weak troughing over the State will keep temperatures below average. As we contend with this, model clusters start to depict another area of low pressure coming into the Pacific Northwest. There is still a bit of uncertainty on the positioning and strength of this system and what impact it will have on us here in SoCal. Ridges of high pressure across the Southern Plains and up in Alaska will dictate where exactly this trough sets up.

Ensemble models are starting to become in better agreement of the trough setting up somewhere along the West Coast, which would be able to entrain moisture across the State by the end of the week. For our area, our confidence is steadily increasing on the occurrence of rainfall later in the week with most areas seeing a 20-30% chance, with the onset possible by Thursday. Confidence is still low on the onset timing and on how much rainfall and snowfall we will see. The pattern may remain active through the weekend with more cooler and wet weather, though details on this remain somewhat uncertain.

Patchy fog and low clouds will affect the coastal waters tonight into Sunday morning. Visibility could drop to 1 NM or less at times. Monday evening into Tuesday, Gusty west-northwest winds up to 30 kts and choppy seas over the outer coastal waters are to be expected, with conditions hazardous for small craft. Strongest winds and highest seas will be in the outer coastal waters near San Clemente Island.

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

NOAA San Diego CA Office: Watches - Warnings - Advisories
CA...None. PZ...None.