Sunrise 5:55 AM   Sunset 7:33 PM Moonrise 3:49 AM   Moonset 4:00 PM

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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 1259 Pm Pdt Sat May 4 2024
.small craft advisory in effect from late tonight through Sunday evening - .
Tonight - Wind west 10 to 15 knots - .becoming 10 to 20 knots with gusts to 25 knots after midnight. Wind waves around 2 feet or less. Mixed swell west 3 to 4 feet at 6 seconds and southwest 2 feet at 15 seconds. A slight chance of rain this evening, then a chance of rain after midnight. Sunday - Wind northwest 15 to 20 knots - .becoming west 10 to 20 knots in the afternoon. Gusts to 25 knots. Wind waves around 3 feet in the morning - .becoming 2 feet or less. Mixed swell northwest 4 to 6 feet at 7 seconds and southwest 2 feet at 15 seconds. A chance of rain in the morning. Sunday night - Wind northwest 10 to 15 knots with gusts to 20 knots - .becoming southwest after midnight. Wind waves around 2 feet or less. Mixed swell west 5 to 6 feet at 8 seconds and southwest 2 feet at 14 seconds. Monday - Wind variable less than 10 knots - .becoming west 10 to 15 knots with gusts to 20 knots in the afternoon. Wind waves around 2 feet or less. Mixed swell west 3 to 5 feet at 8 seconds and south 2 feet at 15 seconds. Monday night - Wind west 10 to 15 knots with gusts to 20 knots - . Becoming south after midnight. Wind waves around 2 feet or less. Mixed swell west 3 to 4 feet at 8 seconds and southwest 2 feet at 16 seconds. Tuesday - Wind variable less than 10 knots - .becoming southwest 10 knots in the afternoon. Wind waves around 2 feet or less. Mixed swell west 3 to 4 feet and southwest 2 feet. Tuesday night - Wind west 10 knots - .becoming south after midnight. Gusts to 15 knots. Wind waves around 2 feet or less. Mixed swell west 3 to 5 feet and southwest 2 feet. Wednesday - Wind southeast 10 knots - .becoming southwest in the afternoon. Gusts to 15 knots. Wind waves around 2 feet or less. Mixed swell west 3 to 5 feet at 10 seconds and southwest 2 feet at 16 seconds. Wednesday night - Wind southwest 10 knots. Wind waves around 2 feet or less. Mixed swell west 3 to 4 feet at 12 seconds and southwest 2 to 3 feet at 15 seconds. Thursday - Wind southwest 10 knots. Wind waves around 2 feet or less. Mixed swell west 3 feet at 12 seconds and south 2 feet at 15 seconds. Thursday night - Wind variable less than 10 knots. Wind waves around 2 feet or less. Mixed swell west 2 to 3 feet at 12 seconds and south 2 feet at 14 seconds.

PZZ700 1259 Pm Pdt Sat May 4 2024
Synopsis for the far southern california coast - At 1 pm, a 1029 mb high was about 1,500 miles northwest of san diego, and a 998 mb low was over western nevada. Stronger and gusty west to northwest winds this evening through Sunday evening will generate hazardous boating conditions, especially in the outer waters. Weaker onshore flow with a coastal eddy follows for Monday through Wednesday.

FXUS66 KSGX 041627 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 927 AM PDT Sat May 4 2024

SYNOPSIS
Cloudy and cool conditions expected this weekend with periods of gusty winds in the mountains and deserts and periods of showers in and west of the mountains. Strongest winds and most likely time of precipitation is tonight into early Sunday morning. Winds will weaken slightly during the day Sunday but remain elevated into Sunday evening. Dry conditions are expected by Sunday afternoon. Dry and gradually warming conditions expected for much of next week.

DISCUSSION
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

The marine layer is about 2000 ft deeper than it was 24-hours ago.
Low clouds have filled in the entire coastal basin and mountain passes. A few areas of drizzle are still being reported as of 9 AM.
Areas of clouds are expected to stick around for much of the day, but periods of sunshine are possible today especially for inland areas. High clouds will become more widespread through the day ahead of a low pressure system that will move inland across northern California. This low will dig into the Great Basin into Sunday, bringing cold and windy conditions with periods of showers to Southern California. High temperatures today will be around 3-7 degrees below normal for most areas, near normal in the low deserts.

Gusty southwest to west winds are expected over the mountains, through passes, and into portions of the deserts. Winds will slowly increase in strength through this afternoon and evening, peaking late tonight into early Sunday morning. Winds will weaken slightly through the day Sunday but remain elevated into Sunday night. Peak wind gusts will be 50 to 60 mph with isolated gusts to 70 mph possible through the San Gorgonio Pass. The windiest locations will be on the desert slopes of the mountains and through/below passes into the deserts. Another round of weaker but still gusty west winds will occur Monday afternoon and evening.

The trough axis of the low and associated cold front are expected to quickly pass through Southern California tonight into early Sunday.
Periods of mostly light rainfall are expected for areas in and west of the mountains as the front passes. As far as rainfall totals go generally less than 0.15 inch expected for the coasts/valleys with local amounts around 0.25 inch near the foothills. Orographics will enhance precipitation along the coastal slopes of the mountains with amounts of 0.25-0.50 inch, upwards of 0.75 inch on the southwest facing slopes of the San Bernardino Mountains. Amounts in the High Desert, if any, will be a couple hundredths of an inch, with no precipitation expected in the low deserts. Precipitation will come to an end by early Sunday afternoon. Snow levels will begin near 7500-8000 ft tonight, falling to around 5500 ft behind the cold front as precipitation tapers off. Any snow accumulation will be limited to an inch or less.

High temperatures on Sunday will be 15-20 degrees below normal for inland areas and 5-10 degrees below normal near the coast. Cool conditions expected Monday morning before temperatures rebound during the day. Low temperatures Monday morning will be quite chilly, especially for the High Desert and mountains with lows in the mid to upper 30s for the High Desert and mid-20s to mid-30s for the mountains. Conditions are expected to gradually warm Tuesday into much of next week, although there is some uncertainty in the forecast for the middle to end of the week. By Wednesday, ensembles are pretty much split half and half on warmer vs cooler scenarios.
By Thursday, the cooler scenario with the low retrograding much further SW is the outlier containing only 7 percent of global ensemble members. Given the large uncertainty the current forecast follows NBM for temperatures which shows a very subtle warming trend through the week.

AVIATION
041630Z
Coasts/Valleys/Foothills
Low clouds cover the region west of the mtns, with bases 1800-2200 FT MSL and tops to 3000 ft MSL. VIS reduced to 1-3SM where low clouds and terrain intersect, obscuring higher terrain. Expect clearing 17z-20z inland, with partial clearing near the coast and intermittent CIGs into the afternoon. Intermittent -SHRA beginning as early as 02-03z Sun at the coast, but more likely between 06-09z for Orange County/Inland Empire and 09-12z for San Diego County. Briefly lower CIGs and slightly reduced VIS down to as low as 3 SM in -SHRA.

Elsewhere...Clear skies with unrestricted VIS this morning, with increasing high clouds AOA 15,000 FL MSL later today.

Mountains/Deserts...W-SW winds developing after 20z, with the strongest winds after 00z Sun. Expect W-SW winds 20-35 kt with gusts of 45-60 kt. Areas of MOD-STG up/downdrafts and LLWS over/east of mtns.

MARINE
Gusty northwest wind gusts of 25 to 30 knots will occur this evening through Sunday evening, which will generate hazardous boating conditions, especially in the outer waters. Northwest wind gusts up to 20 knots will be possible over the outer waters each afternoon and evening for Monday through the middle of next week.

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



SGX WATCHES/WARNINGS/ADVISORIES
CA...Wind Advisory until 8 PM PDT Sunday for Apple and Lucerne Valleys-San Bernardino County Mountains-San Gorgonio Pass Near Banning.

Wind Advisory from 3 PM this afternoon to 8 PM PDT Sunday for Coachella Valley-Riverside County Mountains-San Diego County Deserts-San Diego County Mountains.

PZ...Small Craft Advisory from 3 AM to 10 PM PDT Sunday for Coastal Waters from San Mateo Point to the Mexican Border and out to 30 nm.

Small Craft Advisory from 6 PM this evening to 3 AM PDT Monday for Waters from San Mateo Point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island.

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National City
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Sat -- 01:28 AM PDT     0.80 feet Low Tide
Sat -- 03:49 AM PDT     Moonrise
Sat -- 05:58 AM PDT     Sunrise
Sat -- 07:14 AM PDT     5.17 feet High Tide
Sat -- 01:31 PM PDT     -0.15 feet Low Tide
Sat -- 04:00 PM PDT     Moonset
Sat -- 07:32 PM PDT     Sunset
Sat -- 07:50 PM PDT     6.11 feet High Tide
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National City, San Diego Bay, California, Tide feet

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Sat -- 01:47 AM PDT     0.00 knots Slack
Sat -- 03:49 AM PDT     Moonrise
Sat -- 04:46 AM PDT     1.42 knots Max Flood
Sat -- 05:58 AM PDT     Sunrise
Sat -- 07:30 AM PDT     -0.00 knots Slack
Sat -- 10:40 AM PDT     -1.94 knots Max Ebb
Sat -- 01:52 PM PDT     0.00 knots Slack
Sat -- 04:00 PM PDT     Moonset
Sat -- 05:08 PM PDT     1.93 knots Max Flood
Sat -- 07:32 PM PDT     Sunset
Sat -- 08:08 PM PDT     -0.00 knots Slack
Sat -- 11:15 PM PDT     -2.12 knots Max Ebb
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