Tuesday, March31, 2020
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Marine Weather and Tides
Fairview, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:51AMSunset 7:31PM Tuesday March 31, 2020 9:53 AM PDT (16:53 UTC) Moonrise 10:27AMMoonset 12:40AM Illumination 51% Phase: First Quarter Moon; Moon at 8 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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PZZ531 San Francisco Bay South Of The Bay Bridge- 843 Am Pdt Tue Mar 31 2020
Today..NW winds 5 to 15 kt.
Tonight..NW winds 10 to 20 kt with gusts up to 25 kt.
Wed..NW winds 10 to 20 kt with gusts up to 25 kt.
Wed night..NW winds 5 to 15 kt.
Thu..NW winds 5 to 15 kt with gusts up to 25 kt.
Thu night..NW winds 10 to 20 kt with gusts up to 25 kt.
Fri..W winds 5 to 15 kt.
Sat..SW winds 5 to 10 kt. A chance of showers.
PZZ500 843 Am Pdt Tue Mar 31 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will increase this afternoon through Wednesday night as a low pressure system moves inland over the pacific northwest. The waters off the big sur coast will likely see some gale-force winds and/or gusts. Additionally, can't rule out some isolated gale-force gusts for the outer waters north of point pinos. Mixed swell will persist with a moderate northwest swell and a light southwesterly swell.


7 Day Forecast for Marine Location Near Fairview, CA
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location: 37.67, -122     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 311628 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area Issued by National Weather Service Los Angeles/Oxnard CA 928 AM PDT Tue Mar 31 2020

SYNOPSIS. Dry weather conditions with seasonable temperatures are forecast for the remainder of the week. Rain chances and cooler temperatures return by the upcoming weekend and will potentially continue into early next week.

DISCUSSION. as of 09:15 AM PDT Tuesday . A cloudy start to the day for the North Bay along with possibly a few light showers should give way to at least partly sunny conditions by the afternoon. Farther south plenty of sunshine and warmer temps than yesterday.

PREV DISCUSSION. as of 02:58 AM PDT Tuesday . An upper level low off of the British Columbia coast and associated trough extending into the Pacific Northwest continues to produce widespread cloud cover and isolated showers over northern California. With this, cannot rule out so very light precipitation over far northern portions of the North Bay today, mainly across northern Sonoma County. Elsewhere, dry weather conditions are likely today under a partly to mostly sunny sky. Temperatures will generally warm into the upper 50s along the immediate cost while 60s are likely inland.

Dry weather conditions are likely to persist through the remainder of the week as the storm track stays to the north. Additionally, temperatures will remain near to slightly below seasonal averages in response to a broad trough over the much of the western portion of the country. Overnight/morning temperatures will coo slightly by midweek as a slightly drier air mass filters into the region. This may allow for some inland valley locations to drop into the middle 30s by early Thursday and Friday mornings.

Surface high pressure will build over the eastern Pacific resulting in gusty northwest winds over the Pacific and near the coast from late today through Wednesday evening. However, wind speeds inland will generally remain light.

Deterministic models and ensembles continue to indicate the return to unsettled weather conditions by late this week (generally late Friday) and into the upcoming weekend. However, there remain some differences in model-to-model solutions with respect to timing and position of the mid/upper level trough. Regardless, look for a cooling trend and increased precipitation chances region-wide as we head into the upcoming weekend. Conditions potentially remain unsettled heading into early next week as well.

AVIATION. as of 04:20 AM PDT Tuesday . Infrared satellite imagery shows low clouds developing and expanding in coverage this early morning over the San Francisco Bay Area. The major Bay Area terminals were all reporting MVFR ceilings as of the 12Z TAF publication time. Expect these clouds to mix-out around mid/late morning and return to VFR conditions. Light winds this morning will increase and become onshore in the afternoon.

Vicinity of KSFO . MVFR ceilings as a result of low clouds through 18-19Z, then transition back to VFR. Light winds this morning will become west to northwest this afternoon around 15 kt.

SFO Bridge Approach . Expect the low clouds to expand in coverage over the southern half of the San Francisco Bay along the approach over the next few hours through sunrise. Otherwise, expect similar conditions to that of the terminal.

Monterey Bay Terminals . MVFR conditions were observed earlier in the overnight hours associated with low clouds, but have since returned to VFR conditions. Could still see some low clouds develop between now and sunrise at MRY and SNS. Light winds this morning will become west to northwest this afternoon.

MARINE. as of 09:15 AM PDT Tuesday . Northwest winds will increase this afternoon through Wednesday night as a low pressure system moves inland over the Pacific Northwest. The waters off the Big Sur coast will likely see some gale-force winds and/or gusts. Additionally, can't rule out some isolated gale-force gusts for the outer waters north of Point Pinos. Mixed swell will persist with a moderate northwest swell and a light southwesterly swell.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . Pt Arena to Pt Reyes 0-10 nm from 3 PM SCA . Pt Reyes to Pigeon Pt 0-10 nm from 3 PM SCA . Pigeon Pt to Pt Pinos 0-10 nm from 3 PM SCA . Pt Arena to Pigeon Pt 10-60 nm from 3 PM SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm from 3 PM SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Mry Bay from 3 PM



PUBLIC FORECAST: MW/RGass AVIATION: Rowe MARINE: Rowe

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 16 mi53 min W 4.1 G 5.1 53°F 59°F1025.1 hPa (+0.7)
AAMC1 - 9414750 - Alameda, CA 17 mi53 min SSW 1 G 1.9 54°F 59°F1024.5 hPa (+0.6)
LNDC1 17 mi53 min S 1.9 G 2.9 54°F 1024.4 hPa (+0.6)
OBXC1 20 mi53 min 53°F 53°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 20 mi53 min WSW 1.9 G 2.9 53°F 1024.5 hPa (+0.6)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 20 mi53 min WSW 2.9 G 5.1
PXOC1 - 9414311 - San Francisco (Pier 1), CA 23 mi53 min W 5.1 G 6 53°F 1023.5 hPa (+0.6)
PXSC1 23 mi53 min 54°F 54°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 25 mi53 min SSW 2.9 G 4.1 54°F 1024.7 hPa (+0.6)
UPBC1 26 mi53 min WSW 8 G 9.9
FTPC1 - 9414290 - San Francisco, CA 26 mi53 min 59°F
MZXC1 - 9415102 - Martinez-Amorco CA 26 mi53 min SW 5.1 G 8 54°F 58°F1024.2 hPa (+0.5)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 26 mi53 min W 7 G 9.9 54°F 1023.7 hPa (+0.3)
PCOC1 - 9415144 - Port Chicago, CA 27 mi53 min SW 8.9 G 13 54°F 57°F1023.8 hPa (+0.4)
RCMC1 - 9414863 - Richmond, CA 28 mi53 min S 1.9 G 2.9 53°F 57°F1024.1 hPa (+0.6)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 28 mi49 min Calm 54°F 1024 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 30 mi53 min WSW 6 G 8 54°F 1023.8 hPa (+0.4)
46237 - San Francisco Bar, CA (142) 35 mi53 min 56°F3 ft
SFXC1 - San Francisco Bay Reserve, CA 37 mi68 min W 7
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 45 mi33 min NW 5.8 G 9.7 52°F 56°F1025.2 hPa

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hayward, Hayward Air Terminal, CA6 mi59 minNW 610.00 miOvercast54°F48°F83%1025.4 hPa
Livermore, Livermore Municipal Airport, CA10 mi60 minSW 410.00 miMostly Cloudy50°F46°F89%1024.1 hPa
Oakland, Metro Oakland International Airport, CA12 mi60 minWSW 410.00 miOvercast56°F51°F84%1024.9 hPa
Palo Alto Airport, CA15 mi66 minWSW 310.00 miOvercast54°F48°F82%1024.7 hPa
San Carlos Airport, CA16 mi66 minWNW 410.00 miOvercast54°F50°F88%1025.1 hPa
San Francisco, San Francisco International Airport, CA19 mi57 minN 010.00 miOvercast54°F48°F83%1024.4 hPa
San Jose, San Jose International Airport, CA21 mi60 minN 410.00 miOvercast54°F46°F77%1024.3 hPa
Concord, Buchanan Field, CA22 mi60 minS 710.00 miOvercast54°F48°F80%1022.7 hPa

Link to 5 minute data for KHWD

Wind History from HWD (wind in knots)
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Last 24hrW4W4W7SW5W9NW8NW10W11W12W11W8NW6NW4NW3CalmE3E3NE4NE3E3CalmE4SE3NW6
1 day agoSE8S5S4S7SW7W13W9W10W8NW8W7W7NW6NW5NW4W4W7W6W6W5W6W5W4Calm
2 days agoSE7SE6SE3S7W7W5W6W5W6W8W4SW3CalmCalmSE3CalmSE4SE6SE4SE4E4S4SE5SE5

Tide / Current Tables for Alameda Creek, San Francisco Bay, California
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Alameda Creek
Click for Map
Tue -- 12:32 AM PDT     0.84 feet Low Tide
Tue -- 01:40 AM PDT     Moonset
Tue -- 05:19 AM PDT     5.38 feet High Tide
Tue -- 06:54 AM PDT     Sunrise
Tue -- 11:28 AM PDT     Moonrise
Tue -- 01:56 PM PDT     0.09 feet Low Tide
Tue -- 07:31 PM PDT     Sunset
Tue -- 08:30 PM PDT     4.09 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.91.734.45.35.354.33.42.41.40.70.20.10.41.122.93.7443.52.6

Tide / Current Tables for Oakland Airport SW, South San Francisco Bay, California Current
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Oakland Airport SW
Click for Map
Tue -- 01:41 AM PDT     Moonset
Tue -- 02:39 AM PDT     0.27 knots Max Flood
Tue -- 05:10 AM PDT     -0.00 knots Slack
Tue -- 06:54 AM PDT     Sunrise
Tue -- 08:51 AM PDT     -0.67 knots Max Ebb
Tue -- 11:28 AM PDT     Moonrise
Tue -- 12:47 PM PDT     0.00 knots Slack
Tue -- 04:07 PM PDT     0.46 knots Max Flood
Tue -- 07:31 PM PDT     Sunset
Tue -- 07:50 PM PDT     -0.00 knots Slack
Tue -- 09:37 PM PDT     -0.26 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.20.20.30.20-0.2-0.4-0.6-0.7-0.6-0.4-0.200.20.40.50.40.30.2-0-0.2-0.3-0.2

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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Wind Forecast for San Francisco/Monterey Bay Area, CA (12,3,4,5)
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Ground Weather Radar Station San Francisco Bay Area, CA
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.