Thursday, October28, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Byron, 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 7:27AMSunset 6:13PM Thursday October 28, 2021 2:40 PM PDT (21:40 UTC) Moonrise 11:25PMMoonset 1:35PM Illumination 45% Phase: Third Quarter Moon; Moon at 23 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
PZZ531 San Francisco Bay South Of The Bay Bridge- 214 Pm Pdt Thu Oct 28 2021
Tonight..W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Patchy fog after midnight.
Fri..W winds 10 to 15 kt. Patchy fog.
Fri night..W winds 10 to 15 kt with gusts up to 25 kt.
Sat..W winds 5 to 10 kt.
Sat night..SW winds around 5 kt.
Sun..NW winds around 5 kt.
Sun night..S winds around 5 kt. A chance of rain.
Mon..SE winds 5 to 10 kt. Rain likely.
Tue..W winds 5 to 10 kt.
PZZ500 214 Pm Pdt Thu Oct 28 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A moderately large, longer period northwest swell continues to move through the coastal waters this afternoon. This wave energy peaked this morning and is gradually subsiding through the remainder of the day. Hazardous conditions for small craft vessels, particularly in the surf zone, near shoals, and at harbor entrances are possible through the remainder of the day. Generally breezy to locally gusty northwest winds are prevailing today and will continue to do so through the coming days.


7 Day Forecast for Marine Location Near Byron, CA
   Hourly   EDIT   Help
location: 37.82, -121.73     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 281940 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1240 PM PDT Thu Oct 28 2021

SYNOPSIS. Warming and drying trend continues into Friday. An approaching cold front late Friday brings cooler conditions over the weekend, but the area looks to remain dry. Early next week a frontal system brings rain chances to the Bay Area, with higher chances in North Bay.

DISCUSSION. as of 12:40 PM PDT Thursday .

This Afternoon through Friday:

A high amplitude mid/upper ridge will support surface high pressure across the region. This will bring us warm and dry conditions. The only concern is for fog/low stratus development late tonight into Friday morning. A consensus of the high-resolution forecast models suggest this potential is greatest for coastal/valley locations in the North Bay, with a few members spilling this over into coastal South Bay locations. Locally dense fog is possible so make sure to allow extra travel time for your morning commute in these areas. Otherwise look for seasonally pleasant temperatures with highs mostly in the upper 60s and 70s.

Saturday and Sunday:

A closed upper low will progress through Northern CA early in the period. While shower chances should generally remain north of our area temperatures should cool as the associated cold front passes through. Highs this weekend should be mostly in the upper 50s and 60s, with some lower 70s possible across southern Monterey County. Lows will be in the upper 40s to mid 50s so a jacket may be in store for those out trick-or-treating this weekend.

Monday through Thursday:

A progressive flow pattern will evolve aloft as a few weather systems impact the area. The first should bring rain chances for late Sunday night into Monday. Rain should first develop over the North Bay before moving southeast with time. Definitely not another historic storm, but it should bring us more in the way of beneficial rainfall.

Another round of rain is possible towards mid to late week. However details in the evolution of the weather pattern are somewhat unclear, so stay tuned for details. As mentioned previously the good thing here is that the long range models are keeping the storm door open for our area.

AVIATION. as of 11:22 AM PDT Thursday . For the 18z TAFs. This morning's fog has been dissipating the last few hours leaving all terminals at VFR this afternoon. Surface winds will be fairly light again today, with maximum winds around 8-12 kts possible. Models such as HREF and HRRR hinting at patchy fog and low clouds again late tonight going into Friday morning, which could impact the North Bay terminals as well as KSFO and KOAK. Confidence on whether or not the fog will stay confined to the water or make it to the aforementioned terminals is still low-to-moderate at this time. Stay tuned for the updated TAF this evening.

Vicinity of KSFO . VFR. Light winds currently but will pick up slightly this afternoon and become more W/NW. VFR expected the rest of the afternoon into the evening. Fog may return again tonight which could bring lowered visbys and potentially cigs under 1000 ft. However, similar to last night/this morning, the fog could stay confined to the coast again with winds being light tonight. Stay tuned for 00z TAF.

KSFO Bridge Approach . Similar to KSFO.

Monterey Bay . VFR. Winds will be ~8-12 kts this afternoon. Winds to shift NW in the coming hours. Stratus may return early tomorrow morning, bringing MVFR conditions and potentially brief IFR with locally dense fog.

MARINE. as of 12:35 PM PDT Thursday . A moderately large, longer period northwest swell has arrived and is outperforming model data by a few feet, with swell heights of 10 to 14 feet at roughly 15 to 17 seconds. This wave energy will bring hazardous conditions for small craft vessels, particularly in the surf zone, near shoals, and at harbor entrances with breakers of 15 to 20 feet. This wave energy will gradually subside later today and into tomorrow. Breezy to locally gusty northwest winds will persist during the day over in our outer waters and occasionally along some of our inner water zones.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Reyes to Pigeon Pt 0-10 nm SCA . Pigeon Pt to Pt Pinos 0-10 nm SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm



PUBLIC FORECAST: SPM AVIATION: McCorkle MARINE: Diaz

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/nwsbayarea www.twitter.com/nwsbayarea www.youtube.com/nwsbayarea


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
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 17 mi53 min SE 4.1G5.1 67°F 1019.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 23 mi53 min ENE 8G11 67°F 63°F1019.9 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 26 mi53 min NE 5.1G6 67°F 62°F1020.2 hPa
LNDC1 29 mi53 min WNW 7G9.9 71°F 1019.2 hPa
AAMC1 - 9414750 - Alameda, CA 30 mi59 min WNW 5.1G7 70°F 62°F1019.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 31 mi116 min E 11 70°F 1025 hPa59°F
OBXC1 32 mi53 min 67°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 32 mi53 min NNW 11G13 64°F 1019.3 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 32 mi53 min NW 9.9G12
RTYC1 - 9414523 - Redwood City, CA 33 mi53 min WSW 2.9G4.1 73°F 1020.2 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 33 mi53 min E 7G8.9 69°F 1019.5 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 34 mi53 min NNW 8.9G14 73°F 1019.9 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 35 mi53 min WNW 6G9.9 69°F 1018.6 hPa
PXSC1 35 mi53 min 69°F 69°F
RCMC1 - 9414863 - Richmond, CA 37 mi53 min NW 8G8.9 66°F 61°F1019.9 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 38 mi90 min NNW 8 64°F 1020 hPa
FTPC1 - 9414290 - San Francisco, CA 39 mi53 min NNW 11G12 67°F 1019.6 hPa
46237 - San Francisco Bar, CA (142) 48 mi71 min 61°F 60°F8 ft

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
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
9
am
10
am
11
am
12
pm
1
pm
2
pm
Last
24hr
NE1
W2
W1
W2
SW3
SW2
S4
E5
E5
S5
S6
S4
S5
S6
SE5
E4
E3
SE3
--
NE3
E10
E10
G13
E10
E10
1 day
ago
N3
NE3
W2
G5
SW4
G7
W6
W3
SW4
W7
SW2
S2
W5
W8
SW4
G7
SW4
G7
SE4
SW6
S5
S3
SW3
W6
NW2
W5
NW2
N3
2 days
ago
W12
G15
SW13
G16
SW10
G13
SW6
SW7
SW7
SW8
SW8
S4
S5
S4
SW3
G6
S5
G8
SW3
S5
G8
S5
G9
S4
S5
G8
S5
G10
S11
SW4
G9
S6
G9
S2
NW3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Livermore, Livermore Municipal Airport, CA10 mi48 minENE 1210.00 miFair74°F57°F56%1018.9 hPa
Concord, Buchanan Field, CA20 mi48 minNE 710.00 miFair74°F55°F52%1018.3 hPa
Hayward, Hayward Air Terminal, CA23 mi47 minWSW 710.00 miFair70°F56°F61%1019.9 hPa

Link to 5 minute data for KLVK

Wind History from LVK (wind in knots)
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
9
am
10
am
11
am
12
pm
1
pm
2
pm
Last 24hrE40E4NW60W4E5E8E6E8E6E40000NE30E6E6E11E10NE12E12
1 day ago3SW5SW3W4W4NW30NW5W3S3000N3E4SW3NW300003SW5E3
2 days agoW14W13W14W9SW5SW5S30SW5S60S3S4S3S400000W4SW50S5

Tide / Current Tables for Borden Highway Bridge, Old River, San Joaquin River, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Borden Highway Bridge
Click for Map
Thu -- 07:26 AM PDT     0.09 feet Low Tide
Thu -- 07:28 AM PDT     Sunrise
Thu -- 01:06 PM PDT     Last Quarter
Thu -- 02:34 PM PDT     Moonset
Thu -- 02:37 PM PDT     2.26 feet High Tide
Thu -- 06:11 PM PDT     Sunset
Thu -- 07:05 PM PDT     1.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
2.6
1
am
2.3
2
am
1.9
3
am
1.4
4
am
0.9
5
am
0.5
6
am
0.2
7
am
0.1
8
am
0.1
9
am
0.3
10
am
0.7
11
am
1.2
12
pm
1.6
1
pm
2
2
pm
2.2
3
pm
2.2
4
pm
2
5
pm
1.7
6
pm
1.5
7
pm
1.4
8
pm
1.4
9
pm
1.7
10
pm
2.1
11
pm
2.4


Tide / Current Tables for West Island Lt .5 mi SE, San Joaquin River, California Current
   EDIT      (on/off)   Help   One Week of Data
West Island Lt .5 mi SE
Click for Map
Thu -- 01:59 AM PDT     -0.80 knots Max Ebb
Thu -- 06:44 AM PDT     0.00 knots Slack
Thu -- 07:29 AM PDT     Sunrise
Thu -- 10:37 AM PDT     0.37 knots Max Flood
Thu -- 01:06 PM PDT     Last Quarter
Thu -- 01:44 PM PDT     -0.00 knots Slack
Thu -- 02:35 PM PDT     Moonset
Thu -- 04:09 PM PDT     -0.28 knots Max Ebb
Thu -- 06:11 PM PDT     Sunset
Thu -- 06:29 PM PDT     0.00 knots Slack
Thu -- 08:58 PM PDT     0.26 knots Max Flood
Thu -- 11:18 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
-0.5
1
am
-0.7
2
am
-0.8
3
am
-0.8
4
am
-0.6
5
am
-0.5
6
am
-0.2
7
am
0.1
8
am
0.2
9
am
0.3
10
am
0.4
11
am
0.4
12
pm
0.3
1
pm
0.1
2
pm
-0.1
3
pm
-0.2
4
pm
-0.3
5
pm
-0.2
6
pm
-0.1
7
pm
0.1
8
pm
0.2
9
pm
0.3
10
pm
0.2
11
pm
0.1


Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of CentralWestCoast    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.