Marine Weather Net

Santa Cruz Island to San Clemente Island CA between 60 and 150 NM Offshore Forecast


TODAY

WSW
WINDS
5 - 15
KNOTS

TONIGHT

SSW
WINDS
10 - 20
KNOTS

SAT

WSW
WINDS
20 - 30
KNOTS

SAT NIGHT

WSW
WINDS
15 - 25
KNOTS

The Marine Weather Forecast In Detail:
PZZ840 Forecast Issued: 827 AM PDT Fri Mar 29 2024

Today...W To Sw Winds 5 To 15 Kt, Becoming Sw 15 To 25 Kt. Seas 7 To 12 Ft.
Tonight...S To Sw Winds 10 To 20 Kt, Becoming W To Sw 15 To 25 Kt. Seas 9 To 16 Ft. Chance Of Rain.
Sat...W To Sw Winds 20 To 30 Kt. Seas 11 To 19 Ft. Rain.
Sat Night...W To Sw Winds 15 To 25 Kt. Seas 10 To 18 Ft. Scattered Showers And Tstms.
Sun...N To Nw Winds 15 To 25 Kt. Seas 9 To 16 Ft.
Sun Night...Nw Winds 15 To 25 Kt. Seas 7 To 12 Ft.
Mon...N To Nw Winds 10 To 20 Kt, Becoming Nw 5 To 10 Kt. Seas 6 To 11 Ft.
Mon Night...Nw Winds 5 To 15 Kt. Seas 5 To 9 Ft.
Tue...Nw Winds 5 To 10 Kt, Becoming 5 To 15 Kt. Seas 4 To 7 Ft.
Tue Night...Nw Winds 5 To 15 Kt. Seas 3 To 6 Ft.
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Area Forecast Discussion
National Weather Service San Diego CA
538am PDT Fri Mar 29 2024

Synopsis
A strong Pacific storm will move slowly across the area this weekend into Monday. It will be much cooler. Widespread moderate to locally heavy precipitation on Saturday will become more showery for Saturday night into Monday with a slight chance of thunderstorms for Saturday into Sunday. Warmer and drier for Tuesday and Wednesday with high temperatures around 5 degrees above average on Wednesday. Then cooling for the end of next week with a chance of precipitation.

For Extreme Southwestern California Including Orange... San Diego...Western Riverside and Southwestern San Bernardino Counties
Short Term - Today Through Sunday
A low pressure system centered off the northern California coast early this morning will move slowly southward and be centered just west of Point Conception for late Saturday afternoon, moving inland across northern Baja and far southern California late Sunday.

High temperatures today will be slightly cooler than Thursday near the coast to around 10 degrees cooler for the mountains and high desert. High temperatures for Saturday will be another 10 to 15 degrees cooler inland with Sunday only slightly less cool.

There will be gusty southwest to west winds for the mountains and deserts today, strongest during the afternoon into the evening with the stronger gusts along the desert slopes of the mountains to 45 to 55 mph.

Lighter precipitation may develop this evening, but more widespread and heavier precipitation is expected to be spreading into areas east and south of Los Angeles County by Saturday morning, spreading southward and eastward on Saturday morning. There will be a period of strong gusty south winds ahead of the cold front on Saturday morning with the stronger gusts near the coast to around 40 mph.

The heaviest precipitation from before dawn through noon on Saturday is expected along the south-facing slopes of the San Bernardino County mountains with hourly rainfall up to one-half to one inch per hour and snowfall of 1 to 2 inches per hour and locally 3 inches per hour on the higher peaks.

Behind the front, showers will continue at times for Saturday night and Sunday with more widespread showers and a chance of thunderstorms for late Saturday night into Sunday.

.LONG TERM (Monday through Thursday)... Showers will linger near the mountains on Monday and are expected to end by Monday evening. Tuesday and Wednesday will be drier and warmer with Wednesday high temperatures around 5 degrees above average. Then cooler for Thursday and Friday with a chance for precipitation with another low pressure system centered in the somewhere in the vicinity of the California coast.

Marine
No hazardous marine conditions are expected through Friday. A Small Craft Advisory has been issued for southerly winds 20-25 knots with gusts to 30 knots and choppy seas Friday night into Saturday afternoon. The winds will shift from south to west as a front moves through the coastal waters Saturday morning, with weaker winds and less chop thereafter. There will be a slight chance of thunderstorms Saturday night through Sunday.

Beaches
West southwest swells of 5-7 ft at 9-13 seconds could bring surf of 7-9 feet at times Saturday evening into Sunday afternoon. This will make for dangerous swimming conditions. The highest surf will be on exposed west-facing beaches in San Diego County. There will be a slight chance of thunderstorms Saturday night through Sunday.

Hydrology
Widespread moderate to locally heavy precipitation will occur this weekend. Lighter rain and mountain snow may begin as early as this evening, increasing in coverage and intensity late tonight, with the heaviest and most widespread activity occurring through the day on Saturday, and again early Sunday morning through the afternoon.

Through Monday, rainfall is expected to range from around 1.5 to 2 inches for the coasts and valleys to 2 to 3 inches in the mountains, locally to around 5 inches on the south slopes of the San Bernardino County mountains. For the deserts, one-half to one inch is expected for the Apple and Lucerne Valleys, and one- quarter to one-half inch for the lower deserts.

The snow level will rise to 5500 to 6000 feet for early Saturday morning, fall to around 4500 to 5000 feet for Saturday night, then fluctuate around 5000 to 5500 feet on Sunday. For the San Bernardino County mountains, there could be snowfall of 1 to 3 inches from 4500 to 5000 feet, 3 to 6 inches from 5000 to 5500 feet, 6 to 12 inches from 5500 to 6000 feet, 12 to 18 inches from 6000 to 6500 feet, 18 to 24 inches from 6500 to 7000 feet, with as much as 3 to 4 feet on the higher peaks above 8500 feet. The most widespread and heaviest snowfall is expected on Saturday.

For the Riverside County mountains, snowfall of 1 to 3 inches is expected from 5000 to 5500 feet, 3 to 6 inches from 5500 to 6000 feet, 6 to 12 inches from 5500 to 6000 feet, 12 to 18 inches from 6000 to 6500 feet, and up to 2 feet on the highest peaks above 8000 feet.

For the San Diego County mountains, snowfall of 1 to 3 inches is expected from 5000 to 5500 feet and 3 to 6 inches above 5500 feet. The greater potential for heavier snowfall in the San Diego County mountains is on Saturday night and Sunday.

The current forecast for the San Diego River at Fashion Valley has the river rising on Saturday, but remaining just below the low- water crossings. With additional rainfall on Sunday, the river could rise sufficiently to flood the low-water crossings late Sunday into Sunday night.

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

NOAA San Diego CA Office: Watches - Warnings - Advisories
CA...Flood Watch from late tonight through Sunday afternoon for Orange County Coastal Areas-Orange County Inland Areas- Riverside County Mountains-San Bernardino County Mountains- San Bernardino and Riverside County Valleys-The Inland Empire-San Diego County Coastal Areas-San Diego County Mountains-San Diego County Valleys-Santa Ana Mountains and Foothills.

Wind Advisory from 6am to noon PDT Saturday for San Diego County Coastal Areas-San Diego County Valleys.

Winter Storm Watch from late tonight through Sunday afternoon for San Bernardino County Mountains.

Winter Storm Watch from late tonight through Sunday afternoon for Riverside County Mountains.

Winter Storm Watch from Saturday morning through Sunday afternoon for San Diego County Mountains.

Wind Advisory from 2pm this afternoon to 11pm PDT this evening for Apple and Lucerne Valleys-Coachella Valley-San Diego County Deserts-San Gorgonio Pass Near Banning.

Wind Advisory from 2am to 8am PDT Saturday for Orange County Coastal Areas-Orange County Inland Areas.

PZ...Small Craft Advisory from 11pm this evening to 5pm PDT Saturday for Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm-Waters from San Mateo Point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island.