Thursday, October28, 2021
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Marine Weather and Tides
Montalvin Manor, 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 7:29AMSunset 6:15PM Thursday October 28, 2021 1:34 PM PDT (20:34 UTC) Moonrise 11:27PMMoonset 1:38PM Illumination 46% 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
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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 936 Am Pdt Thu Oct 28 2021
Today..SE winds 5 to 10 kt, becoming nw this afternoon. Patchy fog this morning.
Tonight..SW winds 5 to 10 kt.
Fri..SW winds 5 to 10 kt.
Fri night..SW winds 5 to 10 kt.
Sat..SW winds around 5 kt.
Sat night..SW winds 5 to 10 kt.
Sun..SW winds around 5 kt. A chance of rain.
Mon..S winds 5 to 10 kt. Rain likely.
PZZ500 936 Am 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 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.


7 Day Forecast for Marine Location Near Montalvin Manor, CA
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location: 38.06, -122.39     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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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

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 7 mi46 min E 9.9G12 67°F 1020.4 hPa
RCMC1 - 9414863 - Richmond, CA 10 mi46 min NW 6G8.9 64°F 61°F1020.8 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 11 mi46 min NNW 11G13 70°F 1020.8 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 12 mi53 min NNW 8.9 62°F 1021 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 14 mi46 min NE 5.1G7 65°F 62°F1021.1 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 17 mi46 min NNW 11G12 63°F 1020.1 hPa
PXSC1 18 mi46 min 65°F 65°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 18 mi46 min NW 8G11 65°F 1019.5 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi46 min NW 1.9G4.1
FTPC1 - 9414290 - San Francisco, CA 18 mi46 min N 9.9G12 65°F 1020.3 hPa
OBXC1 18 mi46 min 64°F
PCOC1 - 9415144 - Port Chicago, CA 19 mi46 min E 11G13 66°F 63°F1020.7 hPa
LNDC1 19 mi46 min WNW 5.1G7 68°F 1020.3 hPa
AAMC1 - 9414750 - Alameda, CA 20 mi46 min NW 5.1G6 68°F 62°F1020.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 22 mi109 min E 8.9 67°F 1026 hPa58°F
46237 - San Francisco Bar, CA (142) 23 mi64 min 59°F 60°F9 ft
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 27 mi46 min SE 6G8 65°F 1020.8 hPa
PRYC1 - 9415020 - Point Reyes, CA 31 mi46 min 59°F1020.7 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 32 mi34 min WNW 5.8G9.7 58°F1020.7 hPa
RTYC1 - 9414523 - Redwood City, CA 39 mi46 min SE 1G2.9 72°F 1021 hPa
BDXC1 40 mi88 min 58°F

Wind History for Richmond, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA11 mi59 minN 010.00 miFair72°F61°F69%1021 hPa
Napa, Napa County Airport, CA12 mi40 minESE 610.00 miFair73°F58°F59%1019.4 hPa
Petaluma Municipal Airport, CA18 mi39 minN 010.00 miFair70°F61°F73%1021 hPa
Concord, Buchanan Field, CA19 mi41 minNNE 810.00 miFair72°F55°F55%1019.2 hPa

Link to 5 minute data for KDVO

Wind History from DVO (wind in knots)
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Last 24hrNW7N9W6NW4NW6NW4N5N6N6N4000SE300S600SW30000
1 day agoSW10SW6SW7SW5S3SE4SE4NE3000000N3S4E400NE3000N6
2 days agoSW14
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0E400000000N300000S5W6SW9

Tide / Current Tables for Pinole Point, San Pablo Bay, California
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Pinole Point
Click for Map
Thu -- 12:54 AM PDT     0.46 feet Low Tide
Thu -- 07:31 AM PDT     Sunrise
Thu -- 08:54 AM PDT     4.61 feet High Tide
Thu -- 01:06 PM PDT     Last Quarter
Thu -- 01:48 PM PDT     3.25 feet Low Tide
Thu -- 02:38 PM PDT     Moonset
Thu -- 06:14 PM PDT     Sunset
Thu -- 06:31 PM PDT     4.91 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Petaluma River Approach #3/#4, San Pablo Bay, California Current
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Petaluma River Approach #3/#4
Click for Map
Thu -- 02:08 AM PDT     0.00 knots Slack
Thu -- 05:27 AM PDT     0.56 knots Max Flood
Thu -- 07:31 AM PDT     Sunrise
Thu -- 09:48 AM PDT     -0.00 knots Slack
Thu -- 11:58 AM PDT     -0.28 knots Max Ebb
Thu -- 01:06 PM PDT     Last Quarter
Thu -- 01:53 PM PDT     0.00 knots Slack
Thu -- 02:38 PM PDT     Moonset
Thu -- 03:48 PM PDT     0.40 knots Max Flood
Thu -- 06:14 PM PDT     Sunset
Thu -- 07:22 PM PDT     -0.00 knots Slack
Thu -- 10:56 PM PDT     -0.78 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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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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