Friday, March5, 2021
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Marine Weather and Tides
Morro Bay, 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 6:24AMSunset 6:03PM Friday March 5, 2021 10:35 AM PST (18:35 UTC) Moonrise 12:28AMMoonset 10:43AM Illumination 54% Phase: Third Quarter Moon; Moon at 22 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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PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 908 Am Pst Fri Mar 5 2021
.small craft advisory in effect from noon pst today through late Sunday night...
Today..Winds variable 10 kt or less, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 8 to 10 ft at 17 seconds.
Tonight..NW winds 10 to 15 kt in the evening, becoming se 5 to 10 kt. Wind waves 2 ft or less. NW swell 8 to 10 ft at 16 seconds. Patchy fog after midnight. Slight chance of showers after midnight.
Sat..E winds 5 to 10 kt, becoming nw 10 to 20 kt with gusts to 25 kt by the afternoon. Combined seas 9 to 11 ft dominant period 15 seconds. Patchy fog in the morning.
Sat night..NW winds 15 to 25 kt with gusts to 30 kt in the evening, becoming N 10 to 15 kt with gusts to 20 kt. Combined seas 9 to 11 ft dominant period 14 seconds, subsiding to 7 to 10 ft dominant period 14 seconds after midnight.
Sun..N winds 10 to 15 kt, becoming nw 10 to 20 kt with gusts to 25 kt by the afternoon. Combined seas 7 to 9 ft dominant period 14 seconds.
Sun night..NW winds 15 to 25 kt with gusts to 30 kt in the evening, becoming 10 to 15 kt with gusts to 20 kt. Combined seas 7 to 8 ft dominant period 13 seconds, building to 7 to 10 ft dominant period 13 seconds after midnight.
Mon..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. NW swell 9 to 11 ft. Slight chance of rain.
Tue..SW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 8 to 10 ft. Chance of rain.
PZZ600 908 Am Pst Fri Mar 5 2021
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 16z, or 8 am pst, there was a 990 mb low pressure center around 600 nm west of seattle with a cold front extended to off the california central coast.


7 Day Forecast for Marine Location Near Morro Bay, CA
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location: 35.39, -120.93     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 051638 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 838 AM PST Fri Mar 5 2021

SYNOPSIS. 05/837 AM.

Today will be warm and dry. There is a slight chance of light rain over northern areas on Saturday, otherwise it will be dry through the weekend with cooler temperatures. A couple of stronger and colder storms are possible between late Monday and Wednesday night bringing more rain and mountain snow.

SHORT TERM (TDY-SUN). 05/823 AM.

Mostly sunny skies were noted across the forecast area early this morning except for patchy low clouds and some dense fog over the SBA County Central Coast into the Santa Ynez Vly, as well as over the Salinas River Vly. The low clouds and fog will dissipate quickly this morning, with mostly sunny skies expected in all areas thru this afternoon. Gradients to the N and E were offshore early this morning (at 16Z LAX-DAG -2.4 mb, and LAX-BFL at -1.2 mb) with 24- hour offshore trends as well. This has resulted in breezy to locally gusty NE winds over portions of the area, especially in the foothills and mtns. Gradients will trend onshore with breezy S-W winds expected to develop over many areas this afternoon. It will be warmer today as temps today are forecast to be about 2-8 deg above normal away from the immediate coast. Highs for the inland coastal areas and vlys will reach the upper 60s and 70s.

Upper level ridging early this morning with H5 heights around 575- 576 dm will slowly weaken in response to an approaching E Pac upper level trof. H5 heights this afternoon should lower to around 571-574 dm. The upper level trof is forecast to move quickly E and reach the central CA coast by late this evening, then push inland late tonight. Generally flat upper level ridging can be expected across the region on Sat with a broad westerly flow aloft and H5 heights around 572-574 dm. A large upper level trof over the E Pac will approach the W coast Sat night and Sun, resulting in a broad SW flow aloft and H5 heights lowering to 566-570 dm by late Sun afternoon.

A surface cold front associated with the first E Pac upper level trof will approach the Central Coast this evening with increasing clouds, then the front will move thru the region while dissipating late tonight into early Sat. There should be some light rain with the front mainly over NWrn SLO County. This will be a weak and rapidly moving system so any rain should be quite light and generally less than 0.10 inch. For VTU/L.A. Counties, it looks like mostly clear skies should prevail tonight into Sat morning except for marine layer clouds developing along the L.A. County coast and into some of the adjacent vlys. Skies are then expected to become mostly sunny in all areas Sat afternoon. Temps will turn 6-12 deg cooler for many areas on Sat, with highs in the warmest vlys and inland coastal areas mostly in the 60s.

Low clouds are forecast to develop along the L.A. County coast and into some adjacent vlys later Sat night into Sun morning. Otherwise, it should be mostly clear Sat night with increasing hi clouds on Sun resulting in a mostly cloudy forecast. Hi temps will remain on the cool side Sun with most inland coastal areas and vlys reaching into the 60s.

Gusty sub-Advisory N winds should affect the SBA County S coast and mtns this evening, with Advisory-level N winds possible Sat evening. Otherwise, increasing NW-N winds should move into SLO/SBA Counties by Sat afternoon, with breezy to gusty SW-W winds over portions of VTU/L.A. Counties. Breezy offshore winds can be expected later Sat night into Sun morning, altho gusty sub- Advisory level NE winds will be possible along the Central Coast hills and Santa Lucia mtns.

LONG TERM (MON-THU). 05/322 AM.

Not much excitement on Monday. Weak cyclonic flow will persist over the area. Right now it looks like there will not be enough of a marine inversion to create a marine layer stratus deck and skies will be partly cloudy as some high clouds waft overhead. Lower hgts will bring 2 to 4 degrees of cooling and max temps will again only be in the lower to mid 60s or about 5 degrees blo normal.

Both the EC and GFS agree that a rainy pattern will set up Tuesday. A cold upper low to the west of Coos Bay OR will spin moist WSW flow over Srn CA starting Tuesday. The upper low will move down the coast and by Wednesday it should be just to the NW of SLO county. This will move the main moisture stream to the south of LA county but will put the area under a difluent flow pattern as well as better PVA. On Wednesday night the upper low will move over the area and then open up into a trof and push to the SE.

While the there is good consensus with the general idea of this three day forecast there is quite a bit of variance in the ensembles with with timing and QPF. The latest ensemble run averages have trended downward with the amount of rain over the three day period. But these kinds of systems are usually quite full of surprises and expect the forecast to take a few twists and turns over the next few days.

There is no thunder in the official forecast but Wednesday looks like it might have convective potential with the upper low overhead.

Snow might be a significant concern as early snow level forecasts are under 4000 ft.

Needless to say it will be cool each day with highs remaining mired in the lower to mid 60s.

AVIATION. 05/1223Z.

At 12Z at KLAX, there was no marine layer.

High confidence in VFR conditions at all sites through this evening. Moderate confidence after 06Z with the possible return of marine layer low clouds for the Central Coast and LA coast.

KLAX . Good confidence in TAF through 06Z, then moderate confidence due to timing and height of marine layer stratus. Good confidence that there will be no east wind component greater than 6 kt.

KBUR . High confidence in VFR TAF.

MARINE. 05/824 AM.

Across the outer waters . Sea conditions will increase to SCA level by midday and will continue through at least Tuesday with a brief drop to below SCA level on Sunday. Winds will be SCA level Saturday and Sunday.

Across the nearshore waters of the Central Coast . Sea conditions will increase to SCA level by midday and will continue through at least Tuesday with a brief drop to below SCA level on Sunday. Winds will be SCA level Saturday and Sunday.

Across the inner waters south of Point Conception . Winds will be elevated and gusty near Point Conception tonight with a forty percent chance of reaching SCA level. Winds across the inner waters will be SCA level Saturday and Monday, otherwise conditions will remain below SCA level.

Patchy fog, locally dense with visibility under one mile, will continue through midday off the Central Coast.

BEACHES. 05/749 AM.

A large, long-period northwest swell will move through the coastal waters today and bring advisory level high surf and dangerous rip currents across west to northwest-facing beaches of the Central Coast through early Sunday. There will be breaking waves of 8 to 12 feet by this afternoon and peaking overnight at 10 to 12 feet with local sets to 15 feet. The swell will subside through the day Sunday, then another larger swell will arrive late Sunday and will likely bring high surf to the area through the week.

The surf across the west facing beaches of Ventura County will be elevated but will likely remain below advisory criteria. The peak surf of 4 to 6 feet with local sets of 7 feet will occur late on Saturday, then the surf subsides on Sunday. Elevated surf conditions are likely again Monday through Thursday.

LOX WATCHES/WARNINGS/ADVISORIES. CA . High Surf Advisory in effect until 4 AM PST Sunday for zones 34-35. (See LAXCFWLOX). PZ . Small Craft Advisory in effect from noon today to 3 AM PST Monday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect from 3 AM Saturday to 3 AM PST Sunday for zones 650-655. (See LAXMWWLOX). Small Craft Advisory in effect until 6 AM PST Monday for zones 670-673. (See LAXMWWLOX). Small Craft Advisory in effect from 3 PM this afternoon to 6 AM PST Monday for zone 676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (SUN-THU).

High surf and dangerous rip currents are likely through the middle of next week. Gusty west to northwest winds will create driving and boating hazards at times through next Wednesday. A couple of storms could bring winter hazards to the mountains Tuesday and Wednesday.

PUBLIC . Sirard/Rorke AVIATION . Stewart MARINE . Kj BEACHES . Kj SYNOPSIS . Stewart

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46215 - Diablo Canyon, CA (076) 13 mi40 min 53°F4 ft
CPXC1 18 mi36 min 4.1 G 5.1
PSLC1 - 9412110 - Port San Luis, CA 18 mi54 min SSE 5.1 G 5.1 50°F 52°F1023.3 hPa
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 30 mi36 min NW 7.8 G 12 1023.1 hPa (-0.4)

Wind History for Port San Luis, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Luis Obispo, San Luis Obispo County-Mc Chesney Field, CA19 mi40 minN 010.00 miFair59°F46°F62%1022.1 hPa

Link to 5 minute data for KSBP

Wind History from SBP (wind in knots)
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Last 24hrW7NW7SW11W10NW6NW11NW11NW8NW6W4W3CalmE4CalmE3CalmCalmCalmCalmCalmSE4CalmCalmCalm
1 day agoCalmCalmNW5W8N7NW11NW9NW7N4CalmCalmCalmE4E3CalmE3SE3E4SE3CalmCalmCalmCalmNW7
2 days agoCalm4SW9SW9NW12NW12NW8CalmSE3CalmSE4SE4E3CalmCalmSE3SE3NE3S3CalmE3SE4CalmCalm

Tide / Current Tables for Morro Beach, Estero Bay, California
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Morro Beach
Click for Map
Fri -- 12:28 AM PST     Moonrise
Fri -- 02:18 AM PST     4.77 feet High Tide
Fri -- 06:27 AM PST     Sunrise
Fri -- 10:03 AM PST     0.42 feet Low Tide
Fri -- 10:42 AM PST     Moonset
Fri -- 04:54 PM PST     2.70 feet High Tide
Fri -- 05:32 PM PST     Last Quarter
Fri -- 06:02 PM PST     Sunset
Fri -- 08:36 PM PST     2.31 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.94.54.84.74.33.62.71.81.10.60.40.60.91.422.42.62.72.62.52.32.32.52.8

Tide / Current Tables for Port San Luis, California
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Port San Luis
Click for Map
Fri -- 12:27 AM PST     Moonrise
Fri -- 02:08 AM PST     5.29 feet High Tide
Fri -- 06:26 AM PST     Sunrise
Fri -- 09:51 AM PST     0.20 feet Low Tide
Fri -- 10:42 AM PST     Moonset
Fri -- 04:43 PM PST     3.02 feet High Tide
Fri -- 05:32 PM PST     Last Quarter
Fri -- 06:02 PM PST     Sunset
Fri -- 08:23 PM PST     2.57 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.555.35.14.63.72.71.70.90.30.20.40.91.62.22.7332.92.72.62.62.83.3

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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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