Saturday, December14, 2019
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Marine Weather and Tides
Sausalito, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:15AMSunset 4:53PM Saturday December 14, 2019 8:43 AM PST (16:43 UTC) Moonrise 7:33PMMoonset 9:38AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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- 212 Am Pst Sat Dec 14 2019
Today..W winds 10 to 20 kt.
Tonight..NW winds 5 to 15 kt.
Sun..NW winds up to 10 kt.
Sun night..N winds up to 10 kt.
Mon..NE winds up to 10 kt.
Mon night..E winds 10 to 20 kt with gusts up to 25 kt.
Tue..E winds 5 to 10 kt. A chance of rain.
Wed..SE winds around 5 kt. A chance of rain.
PZZ500 212 Am Pst Sat Dec 14 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will increase today through Sunday as an upper level trough moves into northern california. Winds will switch back to the southeast Monday as the next weather system approaches. A long-period northwest swell will gradually decrease over the weekend.


7 Day Forecast for Marine Location Near Sausalito, CA
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location: 37.8, -122.5     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 141129 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 329 AM PST Sat Dec 14 2019

SYNOPSIS. Another frontal system will drop southward over the region late in the day bringing a renewed chance for light precipitation. Cooler and drier condition are then forecast from Sunday into early next week. Unsettled weather conditions appear to return for the latter half of next week and will potentially continue into next weekend.

DISCUSSION. as of 03:04 AM PST Saturday . A moist zonal flow persists over the region this morning in wake of yesterday's frontal passage. This has allowed for light rain to linger over portions of the region early this morning, mainly from the San Francisco Peninsula southward across the Central Coast. Rainfall amounts have been light overnight however, generally only adding up to a few hundredths of an inch. Precipitation has diminished over the North Bay where breaks in the cloud cover are being observed. This has allowed temperatures in that region to cool in to the upper 40s while 50s are being reported elsewhere across the region.

A deeper mid/upper level low is then forecast to drop into northern California late in the day and will drive a secondary frontal boundary across the region. Rainfall with this system will also be minimal overall with the best chances for measurable rainfall from San Francisco southward through tonight. Thus, much of the region will remain dry throughout the day with temperatures generally warming into the 50s. In wake of this system, a colder and drier air mass will advect across the region and result in clearing sky conditions by Sunday. Thus, look for much cooler overnight conditions with more widespread 30s likely across the interior valleys Sunday morning and more so by Monday morning when lower 40s to even upper 30s will be possible near the coast. These temperatures will likely be some of the coldest the region has seen so far this month. Dry and seasonably cool conditions will then persist into early next week as a ridge of high pressure builds over the region. This will not result in much warming trend however with daytime highs generally in the 50s.

The forecast models are in generally decent agreement with unsettled weather conditions returning to the region by the middle of next week as a mid/upper level trough and potentially a cut-off low approach from the west. Meanwhile, a much deeper plume of moisture will advect inland over far northern California by the latter half of next week. Thus, while details remain limited at this time, there will be the potential for periods of rain late in the week and potentially into next weekend. Stay tuned as this pattern may result in some travel issues across the state leading up to Christmas.

AVIATION. as of 3:30 AM PST Saturday . Low level moisture remains over the area this morning but an increasing west wind will help to raise cigs after 18Z. There will still be some clouds in the 4000-5000 foot range until the upper trough passes late Saturday night.

Vicinity of KSFO . MVFR cigs with bases around 2500 ft. Increasing west wind will help clear out the low clouds leaving a layer at 4000-5000 ft. This will linger through most of the day until the upper trough moves through tonight. West winds 10-15 kt gusting to 20 kt after 21Z.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Mostly IFR conditions improving to MVFR after 15-16Z. Cigs rising to VFR range after 19Z. West to northwest winds 5-10 kt increasing slightly during the day.

MARINE. as of 03:23 AM PST Saturday . Northwest winds will increase today through Sunday as an upper level trough moves into northern California. Winds will switch back to the southeast Monday as the next weather system approaches. A long-period northwest swell will gradually decrease over the weekend.

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



PUBLIC FORECAST: RGass AVIATION: W Pi MARINE: W Pi

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FTPC1 - 9414290 - San Francisco, CA 2 mi61 min W 4.1 G 6 52°F 55°F1018.8 hPa
PXSC1 5 mi55 min 53°F 49°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 6 mi55 min WSW 7 G 9.9 52°F 1017.6 hPa
46237 - San Francisco Bar, CA (142) 7 mi43 min 55°F10 ft
OBXC1 8 mi55 min 53°F 47°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 9 mi61 min WSW 4.1 G 5.1
OKXC1 - 9414776 - Oakland (Berth 34), CA 9 mi61 min W 2.9 G 4.1 52°F 1018.6 hPa
RCMC1 - 9414863 - Richmond, CA 10 mi55 min 55°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 10 mi55 min WNW 7 G 8.9 53°F 1018.9 hPa
AAMC1 - 9414750 - Alameda, CA 11 mi55 min 55°F
LNDC1 12 mi61 min W 2.9 G 5.1 53°F 1018.6 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 18 mi33 min NW 19 G 25 54°F 56°F1019.9 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 22 mi55 min W 9.9 G 11 52°F 1018 hPa
RTYC1 - 9414523 - Redwood City, CA 25 mi61 min W 8 G 12 52°F 58°F1019.3 hPa
UPBC1 26 mi55 min WNW 5.1 G 8
MZXC1 - 9415102 - Martinez-Amorco CA 26 mi61 min W 6 G 7 52°F 54°F1018.2 hPa
PRYC1 - 9415020 - Point Reyes, CA 29 mi61 min 54°F1019 hPa
PCOC1 - 9415144 - Port Chicago, CA 30 mi55 min 54°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 36 mi61 min W 8 G 12 52°F 1017.8 hPa
SFXC1 - San Francisco Bay Reserve, CA 37 mi118 min W 5.1 48°F 1018 hPa47°F
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 37 mi43 min NNW 16 G 19 55°F 1020.1 hPa49°F

Wind History for San Francisco, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Francisco, San Francisco International Airport, CA14 mi1.8 hrsW 109.00 miMostly Cloudy54°F45°F72%1018.5 hPa
Oakland, Metro Oakland International Airport, CA16 mi50 minW 1110.00 miMostly Cloudy53°F46°F77%1018.7 hPa
Half Moon Bay Airport, CA20 mi48 minNNW 107.00 miMostly Cloudy54°F46°F77%1019.6 hPa
Hayward, Hayward Air Terminal, CA22 mi49 minWNW 810.00 miMostly Cloudy52°F46°F80%1019.7 hPa
San Carlos Airport, CA23 mi56 minW 610.00 miMostly Cloudy52°F46°F82%1019.3 hPa
Novato / Gnoss Field, CA24 mi48 minN 010.00 miFair46°F46°F100%1018.6 hPa

Link to 5 minute data for KSFO

Wind History from SFO (wind in knots)
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Last 24hrCalmNW3NW8W9W4SE9SE11N5W6W8SW5SW7SW5W6W10W8W11W17NW13W13W6W9W10W15
G19
1 day agoCalmE5CalmN5N6N8NE5E33E4N4N4NW5NW5W5NW6W5CalmCalmCalmCalmNW3CalmS3
2 days agoSE3CalmNE4N5N5N4N3N3N4N4SE6E3SE3S5SE10SE7SE4CalmSW3SW3CalmCalmCalmNE5

Tide / Current Tables for San Francisco, California
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San Francisco
Click for Map
Sat -- 01:46 AM PST     4.82 feet High Tide
Sat -- 06:06 AM PST     3.06 feet Low Tide
Sat -- 07:17 AM PST     Sunrise
Sat -- 09:37 AM PST     Moonset
Sat -- 12:09 PM PST     6.31 feet High Tide
Sat -- 04:51 PM PST     Sunset
Sat -- 07:02 PM PST     -1.06 feet Low Tide
Sat -- 07:32 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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44.74.84.53.93.33.13.23.84.55.366.36.15.23.820.4-0.7-1.1-0.801.12.2

Tide / Current Tables for San Francisco Bay Entrance (Golden Gate), California Current
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San Francisco Bay Entrance (Golden Gate)
Click for Map
Sat -- 03:23 AM PST     -0.01 knots Slack
Sat -- 05:29 AM PST     -2.20 knots Max Ebb
Sat -- 07:17 AM PST     Sunrise
Sat -- 08:26 AM PST     0.00 knots Slack
Sat -- 09:37 AM PST     Moonset
Sat -- 11:23 AM PST     2.39 knots Max Flood
Sat -- 01:59 PM PST     -0.00 knots Slack
Sat -- 04:51 PM PST     Sunset
Sat -- 05:37 PM PST     -5.07 knots Max Ebb
Sat -- 07:32 PM PST     Moonrise
Sat -- 09:29 PM PST     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.83.32.20.7-1-2.1-2.1-1.3-0.40.61.62.32.21.3-0-1.7-3.5-4.8-5-4-2.5-0.90.92.6

Weather Map
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wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (11,2,3,4)
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Ground Weather Radar Station San Francisco Bay Area, CA
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