Tuesday, September28, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Morro Bay, CA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 6:54AMSunset 6:51PM Tuesday September 28, 2021 8:41 AM PDT (15:41 UTC) Moonrise 10:48PMMoonset 1:09PM Illumination 53% 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
    EDIT      (on/off)   Help
PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 246 Am Pdt Tue Sep 28 2021
.small craft advisory in effect from noon pdt today through this evening...
Today..NW winds 10 to 15 kt, becoming 15 to 25 kt with gusts to 30 kt in the afternoon. Combined seas 5 to 7 ft dominant period 9 seconds, building to 7 to 9 ft dominant period 9 seconds in the afternoon.
Tonight..NW winds 15 to 25 kt with gusts to 30 kt in the evening, becoming 10 to 15 kt. Combined seas 7 to 9 ft dominant period 12 seconds.
Wed..NW winds 10 to 15 kt, becoming 15 to 25 kt in the afternoon. Combined seas 6 to 8 ft dominant period 13 seconds, building to 8 to 9 ft dominant period 12 seconds in the afternoon.
Wed night..NW winds 15 to 25 kt in the evening, becoming 10 to 15 kt. Combined seas 7 to 9 ft dominant period 12 seconds.
Thu..NW winds 5 to 10 kt, becoming 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 5 to 7 ft at 11 seconds.
Thu night..NW winds 10 to 15 kt in the evening, becoming 5 to 10 kt. Wind waves 2 ft or less. NW swell 5 to 6 ft at 11 seconds.
Fri..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft. Patchy fog.
Sat..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft. Patchy fog.
PZZ600 246 Am Pdt Tue Sep 28 2021
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 09z, or 2 am pdt, a 1026 mb surface high was located around 900 nm west of san francisco. A 1006 mb thermal low was centered in western arizona. Gale force winds are expected to develop across the outer waters today.


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


Area Discussion for - Los Angeles/Oxnard, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KLOX 281302 AFDLOX

Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 602 AM PDT Tue Sep 28 2021

SYNOPSIS. 28/403 AM.

Today will be cool as a dry cold front moves through the region. Gusty north to northwest winds will be likely across southern Santa Barbara County and the Interstate 5 corridor through tonight. A significant warming trend with weak offshore flow is expected from Wednesday into this weekend.

SHORT TERM (TDY-THU). 28/334 AM.

Once again a very deep marine layer has allowed stratus to cover all the coasts and valleys south of Point Conception. Clouds have also filtered through many of the lower mountain passes and are reaching as far as the Antelope Valley foothills. Satellite imagery is showing more disorganized stratus north of Point Conception, although still covering all the coasts and valleys (except the Santa Barbara south coast). This is indicative of the weakening inversion thanks to increasing northwest flow aloft and associated cold advection. There should be better clearing this morning north of Point Conception as the marine inversion breaks down. Although the clearing may not be uniform and there could be partly cloudy skies in some areas. The continued deep marine layer south of Point Conception may produce some patchy drizzle this morning, as it did yesterday. Clearing will likely be slow once again, but with weaker onshore flow expected, it should be earlier than previous days. The cold advection may also speed clearing up as well. To continue on the cloud conversation, current satellite imagery is indicating clouds starting to develop along the northern mountain slopes. Coverage should increase as the morning goes on and the lift and moisture could squeeze out some drizzle through the day.

Aside from cloud coverage, the main topic of the day is the wind. To start, some breezy sundowner winds are lingering across the western portion of the Santa Barbara south coast this morning. Since winds have been weakening, have decided to let the Wind Advisory for this area expire. However, some locally gusty winds are likely to continue across the usual windy spots through the morning. There have also been breezy northerly winds through the I-5 corridor this morning. Although winds are weaker than expected, will let the Wind Advisory continue through 10am in case they pick up in the coming hours. Northerly gradients are expected to increase tonight following the frontal passage, so another round of advisory level north to northwest winds are likely in these areas again. Gusty west to northwest winds will also filter through the western Antelope Valley and adjacent foothills through the day and tonight. A Wind Advisory will remain in effect through 9pm for the Antelope Valley and will let the day shift examine if it needs to be extended through tonight.

To close out the forecast for today, the cool fall-like temperatures will be the talk of the town. The interior will experience a large drop in high temperatures. After feeling highs in the 80s to 90 yesterday, it will really feel like fall with highs in the 70s. The coasts and valleys will remain similar to yesterday, although with earlier clearing there could be a few degrees of warming. Temperatures will be 5 to 15 degrees below normal.

The nice and cool temperatures won't stick around for long as we're in for a pattern change mid- to late-week. The trough will move eastward and building heights will follow in its wake. Weak offshore flow will develop on Wednesday, and paired with increasing heights and thicknesses, temperatures will bounce back into the 80s for the valleys. The marine layer on Wednesday morning will likely remained confined to LA County, and possibly coastal Ventura County. Heights and thicknesses rise even more on Thursday and there will be a little more offshore flow. The NAM is forecasting a LAX-DAG gradient of -3.6 mb. The deterministic ECMWF, which has been consistently been forecasting a gradient of -3 to -3.5 mb the last several days, has actually backed down in the 28/00Z run. However, the ensemble members are sticking to previous thinking. Northeast winds will likely gust 25 to 40 mph through the typical Santa Ana wind-prone areas in LA and Ventura Counties. This will help boost temperatures across the coasts and valleys into the upper 80s to 90s. The marine layer should be wiped out and there will be abundant sunshine.

LONG TERM (FRI-MON). 28/400 AM.

Offshore flow is expected to continue on Friday, although weaker than Thursday. This should lead to another hot, summer-like day across the area with temperatures in the 80s and 90s away from the beaches. The marine layer will once again be absent and there will be full sunshine.

A cutoff low breaks from the main flow off the coast of Central California and hangs out over the ocean over the weekend. It won't really affect our weather, but the increasing cyclonic flow will likely allow the marine layer to make a comeback and bring stratus back to the Central Coast and possibly the LA and Ventura County coastal areas. Temperatures will remain hot through the weekend then cool through next week.

AVIATION. 28/1301Z.

At 12Z, the marine layer was around 3000 feet deep at KLAX. The top of the inversion was around 4400 feet with a temp of 18C.

Widespread low clouds in most coastal and valley areas early this morning. Conds were mostly MVFR, except IFR to VLIFR in the foothills and mtns, and portions of the Central Coast, Expect rather slow clearing today, and skies may remain mostly cloudy all day in some areas. However, expect cigs to rise into the VFR category, with the exception of in the foothills and mtns, where IFR cigs may persist. Expect low clouds to affect coastal and possibly valley areas of L.A. County tonight, with generally MVFR conds, except IFR conds in the foothills. Some low clouds with IFR to LIFR conds are possible on the Central Coast tonight.

KLAX . Low confidence in the 12Z TAF. Expect clouds to fill in at the airport by 15Z, but there is a 20-30% chance that sky conds will remain scattered, with VFR conditions prevailing. There is a 20-30% chance that if cigs develop, they will remain MVFR well into the afternoon. There is a 30% chance that skies will remain clear tonight.

KBUR . Low confidence in the 12Z TAF. MVFR conditions will linger through much of the period. There is a 30% chance that MVFR cigs could linger well into the afternoon. There is a 30% chance that skies will remain clear tonight.

MARINE. 28/353 AM.

For the waters outer waters, moderate to high confidence that winds will increase to Gale Force later this morning, then continue thru late tonight. Small Craft Advisory level winds and seas are expected from late tonight thru late Wed night. There is a 30% chance that SCA conds will continue on Thu. SCA conds are not expected Thu night thru Sat.

Across the inner waters north of Pt. Sal, fairly good confidence in SCA level NW winds this afternoon/evening, and again Wed afternoon/evening. There is a 30-40% chance that seas will remain above SCA levels thru at least late tonight or possibly even thru Wed morning, so the SCA may have to be extended. SCA conds are not expected Thu thru Sat.

For the SBA Channel, moderate to high confidence in SCA level W-NW winds this afternoon and evening, mainly across western sections. There is a chance that SCA conds could linger thru late tonight. SCA conds are not expected Wed thru Sat.

Across the southern inner waters, there is a 30-40% chance of SCA level winds this afternoon/evening across northern/western portions, mainly near Anacapa Island. There will be rough and choppy seas thru tonight. Otherwise, SCA conds are not expected thru Sat.

LOX WATCHES/WARNINGS/ADVISORIES. CA . Wind Advisory in effect until 10 AM PDT this morning for zones 53-54. (See LAXNPWLOX). Wind Advisory in effect until 9 PM PDT this evening for zone 59. (See LAXNPWLOX). PZ . Small Craft Advisory in effect from noon today to 9 PM PDT this evening for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect from 3 PM this afternoon to 9 PM PDT this evening for zone 650. (See LAXMWWLOX). Small Craft Advisory in effect until 9 AM PDT this morning for zones 670-673-676. (See LAXMWWLOX). Gale Warning in effect until 3 AM PDT Wednesday for zones 670-673-676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (THU-MON).

Gusty northeast winds are possible Thursday across Los Angeles and Ventura Counties. Temperatures will warm to near heat advisory levels Thursday through Sunday. There will also be elevated to brief critical fire weather concerns Thursday through Sunday.



PUBLIC . Stewart AVIATION . DB MARINE . DB SYNOPSIS . Stewart

weather.gov/losangeles


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46215 - Diablo Canyon, CA (076) 13 mi46 min 56°F6 ft
PSLC1 - 9412110 - Port San Luis, CA 18 mi60 min ENE 1.9 G 2.9 61°F 60°F1015.7 hPa
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 30 mi42 min NW 19 G 23 60°F1015.5 hPa

Wind History for Port San Luis, CA
(wind in knots)    EDIT      (on/off)   Help
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last
24hr
E3
E1
SW4
S4
SW8
G11
SW9
G13
W15
W13
G17
W12
G16
W9
G13
W4
SW1
S4
NW3
S1
SE1
SW3
NE5
W1
NW3
G6
SW1
W1
E3
NE1
G4
1 day
ago
N2
--
S4
S4
S6
G10
SW10
G15
SW10
G15
W13
G18
W15
G19
W7
G10
--
S2
NW1
--
NW1
--
NW1
N2
--
--
--
W3
NW3
W1
2 days
ago
--
S5
E1
E1
W8
G11
W11
G16
W7
G12
W9
G12
SW8
G11
W6
W4
N2
N3
N2
NW1
W4
NE1
NE4
N3
G6
SE3
NE4
N4
NE4
N3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Luis Obispo, San Luis Obispo County-Mc Chesney Field, CA19 mi46 minNNW 16 G 2410.00 miSmoke64°F52°F65%1014.8 hPa

Link to 5 minute data for KSBP

Wind History from SBP (wind in knots)
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrW4NW4CalmCalm3W3NW11NW17NW12NW14NW13NW9NW9NW9N3NE4CalmCalmW3W6W55W13N16
G24
1 day agoCalmCalmCalm4NW4W7NW7NW10NW11NW9NW9NW9NW7NW7NW7NW6NW4W4N3N3NW5NW3N4NW5
2 days agoCalm333NW7W7S7SE55NW7NW6NW6NW5NW3NE3NW5NW8N5N3W4CalmCalmCalmNW4

Tide / Current Tables for Morro Beach, Estero Bay, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Morro Beach
Click for Map
Tue -- 06:56 AM PDT     Sunrise
Tue -- 02:09 PM PDT     Moonset
Tue -- 03:24 PM PDT     4.14 feet High Tide
Tue -- 06:50 PM PDT     Sunset
Tue -- 06:58 PM PDT     Last Quarter
Tue -- 11:47 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.41.722.32.62.833.13.23.33.43.53.73.944.14.143.73.22.72.11.71.3

Tide / Current Tables for Port San Luis, California
   EDIT      (on/off)   Help   One Week of Data
Port San Luis
Click for Map
Tue -- 06:55 AM PDT     Sunrise
Tue -- 06:58 AM PDT     3.51 feet High Tide
Tue -- 08:57 AM PDT     3.47 feet Low Tide
Tue -- 02:08 PM PDT     Moonset
Tue -- 03:20 PM PDT     4.50 feet High Tide
Tue -- 06:50 PM PDT     Sunset
Tue -- 06:58 PM PDT     Last Quarter
Tue -- 11:46 PM PDT     0.88 feet Low Tide
Tue -- 11:47 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.31.72.22.633.33.53.53.53.53.53.63.94.14.44.54.54.23.83.22.51.81.31

Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of Southwest    EDIT
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.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.