Thursday, March4, 2021
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Marine Weather and Tides
Mount Laguna, CA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:08AMSunset 5:47PM Thursday March 4, 2021 4:58 PM PST (00:58 UTC) Moonrise 12:00AMMoonset 10:46AM Illumination 62% Phase: Waning Gibbous; Moon at 21 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 1226 Pm Pst Thu Mar 4 2021
Tonight..Wind nw 10 to 15 kt. Wind waves 3 ft in the evening... Becoming 2 ft or less. Mixed swell W 2 to 4 ft at 12 seconds and S 3 to 4 ft at 18 seconds.
Fri..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 3 to 5 ft at 13 seconds and S 3 ft at 17 seconds.
Fri night..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft. SWell W 4 to 5 ft at 6 seconds.
Sat..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell W 4 to 6 ft at 8 seconds.
Sat night..Wind W 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves 3 to 4 ft in the evening...becoming 2 ft or less. SWell W 4 to 6 ft at 12 seconds.
Sun..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 4 to 6 ft.
Sun night..Wind W 10 kt. Wind waves 2 ft or less. SWell W 3 to 5 ft.
Mon..Wind W 10 kt. Wind waves 2 ft or less. SWell W 4 to 6 ft.
Mon night..Wind W 10 to 15 kt. Gusts to 20 kt after midnight. Wind waves 2 ft or less...becoming 3 to 4 ft after midnight. SWell nw 4 to 6 ft. Slight chance of rain.
Tue..Wind W 10 to 15 kt. Wind waves 3 ft. SWell nw 4 to 5 ft. Slight chance of rain.
Tue night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell W 4 to 6 ft. Chance of rain.
PZZ700 1226 Pm Pst Thu Mar 4 2021
Synopsis for the far southern california coast.. At 1 pm, a 1026 mb high was 350 nm southwest of san diego and a 1018 mb low was over western utah. Weak onshore flow will alternate with offshore flow today and tonight. Onshore flow will strengthen Friday afternoon and will continue through Tuesday. Some gusts could exceed 20 kt each afternoon and evening especially over the outer waters.


7 Day Forecast for Marine Location Near Mount Laguna, CA
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location: 32.87, -116.41     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 042100 AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 100 PM PST Thu Mar 4 2021

SYNOPSIS. High pressure will bring warming and drying through Friday. A low pressure system moving inland through California on Saturday will strengthen onshore flow with cooling and gusty southwest to west winds in the mountains and deserts. Slight warming on Sunday. For Monday through Thursday, a low pressure system over the eastern Pacific will move slowly toward the West Coast. This will bring chances for precipitation as early as Monday night and continuing through Thursday. Stronger onshore flow will also bring periods of stronger and gusty southwest to west winds in the mountains and deserts.

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

Scattered shallow cumulus have developed along and ahead of the sea breeze front this afternoon, otherwise skies are nice and clear. Temperatures are running a solid 10 to 20 degrees higher than this time yesterday. Expect fair weather prevailing through the afternoon and any cumulus clouds to dissipate shortly after sunset. Patchy stratus may redevelop near the coast overnight, otherwise it will be clear and cool.

Warmer and drier weather will take hold on Friday as the upper level low that brought the wind and precipitation yesterday continues to move off to the east and a weak upper level ridge moves overhead. High temperatures will be 5-10 degrees above seasonal averages tomorrow, warmest in the inland valleys and low deserts. Weak offshore flow will develop in the mountains and foothills Friday morning, but will remain well below advisory strength with isolated gusts around 30-35 mph on the western slopes of the Cuyamaca Mountains and below the San Gorgonio Pass.

An upper level trough moves across central and northern CA on Saturday. While we won't see any precipitation from this system, it will bring a return of some marine layer low clouds, cooling, and gusty southwest to west winds in the mountains and deserts.

A low develops over the Gulf of Alaska and slowly drops south off the BC coast on Sunday. We will be sandwiched between the trough off the coat and a weak upper level ridge over interior So Cal and AZ on Sunday, which will maintain slightly below normal temperatures, especially west of the mountains, weak onshore flow, and a deeper marine layer.

The upper level low drops ever so slowly southward without much eastward progression early in the week. The marine layer could deepen enough for some drizzle or light rain as early as Monday, with a better chance on Tuesday morning as a weak short wave moves through the mean flow and into So Cal. Beyond about Tuesday morning, ensemble spread increases drastically with regards to the evolution of the upper low and timing of individual short wave passages. While it is too early to nail down specific details, the main point is that this large trough will very slowly progress east, meaning a multiple-day precipitation event is likely Tuesday through at least Thursday, with a good possibility of lasting into Friday. Right now ensemble consensus points to the heaviest precipitation sometime late Tuesday into Wednesday, followed by lighter showers on Thursday. There is some potential for rain continuing into Friday, but the 12Z suite of guidance has trended towards a faster eastern progression of the trough late in the week followed by another wave digging through the Great Basin Fri/Sat, leaving us dry.

This system will also be quite cold, with 700 mb temps ranging from -8 to -12C, coldest Wednesday and again on Friday. If this holds, we could see snow down to the 3000 ft level, possibly down to 2500 ft or lower during the mornings and in heavier showers. There is a good potential for accumulating snow on the I-15 through the Cajon Pass and upper portions of the Mojave Desert near the San Bernardino Foothills and I-8 through the San Diego Mountains.

AVIATION. 042030Z . VFR conditions will be predominant through the period. Scattered low clouds around 1500 ft MSL will impact the immediate coast at times 02-15Z Friday but only a small chance of BKN ceilings occurring at KSAN/KCRQ/KSNA. Confidence too low to place in TAFs. Elsewhere, expect mostly clear skies/light winds.

MARINE. Northwest winds could occasionally gust above 20 knots in the outer waters during afternoons beginning Friday night and lasting through mid next week, with a lull on Sunday. Otherwise, no hazardous marine conditions are expected.

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

SGX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . NONE.

PUBLIC . SS AVIATION/MARINE . Moreland


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 42 mi59 min 62°F1023.2 hPa (-0.6)
TIXC1 - Tijuana River Reserve, CA 43 mi74 min NW 6 62°F 1024 hPa52°F
46235 45 mi63 min 58°F4 ft
46254 45 mi63 min 59°F3 ft
LJAC1 - 9410230 - La Jolla, CA 45 mi59 min N 7 G 8 58°F 59°F1023.3 hPa (-0.6)
LJPC1 - La Jolla, CA (073) 45 mi39 min N 7 G 8.9 3 ft
46266 46 mi59 min 58°F 59°F4 ft

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KCZZ

Wind History from CZZ (wind in knots)
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Last 24hrW13SW15
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W11W12W12SW13SW13W11W8SW10SW8W9NW8W3CalmNE6NE4NE3N3N5NE12
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2 days agoCalmSW4SW12SW13S12SW13SW12SW12SW8S4NE3NE4NE4NE4CalmE4CalmCalmCalmCalmNE3CalmCalmE4

Tide / Current Tables for National City, San Diego Bay, California
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National City
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Thu -- 12:31 AM PST     5.75 feet High Tide
Thu -- 06:12 AM PST     Sunrise
Thu -- 07:39 AM PST     0.46 feet Low Tide
Thu -- 09:49 AM PST     Moonset
Thu -- 01:41 PM PST     3.56 feet High Tide
Thu -- 05:48 PM PST     Sunset
Thu -- 06:48 PM PST     1.82 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.75.75.24.33.121.10.60.50.91.62.43.13.53.53.32.82.31.91.82.12.73.54.4

Tide / Current Tables for San Diego, California (2)
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San Diego
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Thu -- 12:27 AM PST     5.48 feet High Tide
Thu -- 06:12 AM PST     Sunrise
Thu -- 07:28 AM PST     0.64 feet Low Tide
Thu -- 09:49 AM PST     Moonset
Thu -- 01:37 PM PST     3.39 feet High Tide
Thu -- 05:48 PM PST     Sunset
Thu -- 06:38 PM PST     1.93 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.45.44.942.91.91.10.70.71.11.72.433.33.43.12.72.321.92.22.83.54.3

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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