Wednesday, August5, 2020
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Marine Weather and Tides
Martinez, 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 6:14AMSunset 8:14PM Wednesday August 5, 2020 6:39 AM PDT (13:39 UTC) Moonrise 8:51PMMoonset 7:07AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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- 337 Am Pdt Wed Aug 5 2020
.small craft advisory in effect from 11 am pdt this morning through this evening...
Today..SW winds 10 to 20 kt with gusts up to 30 kt.
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt.
Thu..SW winds 5 to 15 kt.
Thu night..SW winds 5 to 15 kt.
Fri..SW winds 10 to 20 kt with gusts up to 25 kt.
Fri night..SW winds 5 to 15 kt with gusts up to 25 kt.
Sat..SW winds 5 to 15 kt.
Sun..SW winds 5 to 15 kt.
PZZ500 337 Am Pdt Wed Aug 5 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty northwest winds will prevail through late week. Strongest winds can be expected along the inner coastal waters north of point reyes and south of point sur. Winds over the north sf bay will be breezy with a few stronger gusts Wednesday afternoon and into the early evening. These winds will generate steep fresh swells resulting in locally hazardous seas, especially for smaller vessels.


7 Day Forecast for Marine Location Near Martinez, CA
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location: 38.03, -122.14     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 051100 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 400 AM PDT Wed Aug 5 2020


SYNOPSIS. Below normal temperatures through Thursday. Warmer weather returns for the weekend.

DISCUSSION. Upper trough pushing through NorCal has initiated unseasonably strong onshore flow with southwest wind gusts 20 to 35 mph. This will bring below normal temperatures Today and Thursday with high temperatures running 5 to 15 degrees below normal. A few locations over the Southern Sacramento Valley, Northern San Joaquin Valley and Delta will struggle to reach 80 degrees today. Some early morning status will develop, but should remain in the scattered category, although could see a bank of broken coverage along the eastern Sacramento valley against the foothills for a few hours.

IR Sat is showing band of alto cu rotating north over the northern Sierra in front of upper low. Radar also has shown a few isolated showers near the crest around Quincy. Have introduced isolated shower chances for the morning mainly near the crest. Expect activity to transition north out of the area into Siskiyou and Lassen counties by afternoon, although can't rule out an isolated thunderstorm over extreme northwest Shasta county. The chances should remain west of Sims.

Upper trough flattens Friday and Saturday with rising heights and diminishing onshore flow. This will allow temperatures to warm to near normal levels Friday then slightly above normal Saturday. Highs Saturday will be 95 to 105, warmest Northern Sacramento Valley.

EXTENDED DISCUSSION (Sunday THROUGH Wednesday). Ensembles continue to depict broad troughing breaking down into early next week, which means slightly above normal temperatures. Models disagree on trough deepening again around mid-week with GFS deeper than Euro. GFS is also more aggressive in developing thunderstorms over the Sierra crest and Southern Cascades. Will maintain dry forecast in line with ensembles and NBM at this time until there is better model agreement.

AVIATION. VFR conditions next 24 hours. Local southwesterly surface wind gusts 20-35 kts vicinity Carquinez Strait/West Delta, and local gusts up to 20 knots elsewhere tonight between 00-09Z. Some marine stratus around 1kft possible thru 17Z.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
UPBC1 1 mi51 min WSW 6 G 7
MZXC1 - 9415102 - Martinez-Amorco CA 1 mi51 min SW 4.1 G 5.1 61°F 69°F1012.8 hPa
PCOC1 - 9415144 - Port Chicago, CA 6 mi51 min SSW 11 G 19 58°F 69°F1012.1 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 7 mi51 min SW 13 G 16 60°F 1012.5 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 13 mi51 min W 7 G 11 63°F 1011.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 13 mi54 min W 9.9
PPXC1 - 9414847 - Richmond (Point Potrero), CA 15 mi51 min SSE 9.9 G 14 58°F 1013.7 hPa
RCMC1 - 9414863 - Richmond, CA 16 mi51 min 66°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi51 min SW 5.1 G 8 58°F 1013.7 hPa
LNDC1 18 mi51 min SSW 7 G 8.9 58°F 1013.8 hPa
OBXC1 19 mi51 min 58°F 58°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 19 mi51 min SW 8.9 G 12
TIBC1 - Tiburon Pier, San Francisco Bay, CA 19 mi41 min SE 4.1 58°F 1015 hPa
AAMC1 - 9414750 - Alameda, CA 20 mi51 min 69°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi51 min WSW 6 G 8.9 57°F 1012.6 hPa
PXSC1 21 mi51 min 58°F 58°F
FTPC1 - 9414290 - San Francisco, CA 23 mi51 min 62°F
46237 - San Francisco Bar, CA (142) 31 mi69 min 58°F5 ft
RTYC1 - 9414523 - Redwood City, CA 36 mi51 min SW 8 G 9.9 59°F 74°F1015.5 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 42 mi29 min WNW 16 G 19 55°F 52°F1014.3 hPa54°F

Wind History for Union Pacific Rail Road Bridge (UPRR), CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi46 minSSW 1810.00 miPartly Cloudy and Breezy59°F55°F87%1011.4 hPa
Napa, Napa County Airport, CA14 mi45 minWSW 910.00 miPartly Cloudy57°F53°F87%1011.8 hPa
Fairfield / Travis Air Force Base, CA21 mi41 minWSW 1810.00 miA Few Clouds and Breezy59°F54°F84%1012.1 hPa
Oakland, Metro Oakland International Airport, CA23 mi46 minWSW 138.00 miOvercast60°F55°F84%1014.3 hPa
Novato / Gnoss Field, CA23 mi44 minN 010.00 miFair55°F55°F100%1013.2 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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1 day agoSW5SW6
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2 days ago--S11S11S6S7SW6NW10NW13NW8W11W11W10SW8S9S13S9S9S11S12S8SW8SE5S9S7

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Wed -- 02:44 AM PDT     5.54 feet High Tide
Wed -- 06:15 AM PDT     Sunrise
Wed -- 08:06 AM PDT     Moonset
Wed -- 10:09 AM PDT     -0.14 feet Low Tide
Wed -- 04:39 PM PDT     4.84 feet High Tide
Wed -- 08:12 PM PDT     Sunset
Wed -- 09:50 PM PDT     Moonrise
Wed -- 10:00 PM PDT     2.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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44.95.45.55.14.33.2210.2-0.10.10.923.24.14.74.84.43.62.92.32.12.3

Tide / Current Tables for Carquinez Strait, California Current
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Carquinez Strait
Click for Map
Wed -- 01:27 AM PDT     2.06 knots Max Flood
Wed -- 04:28 AM PDT     -0.00 knots Slack
Wed -- 06:15 AM PDT     Sunrise
Wed -- 08:07 AM PDT     Moonset
Wed -- 08:26 AM PDT     -2.97 knots Max Ebb
Wed -- 12:04 PM PDT     0.00 knots Slack
Wed -- 03:14 PM PDT     2.05 knots Max Flood
Wed -- 06:26 PM PDT     -0.00 knots Slack
Wed -- 08:13 PM PDT     Sunset
Wed -- 09:13 PM PDT     -1.47 knots Max Ebb
Wed -- 09:51 PM PDT     Moonrise
Wed -- 11:34 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.4221.50.5-0.7-1.8-2.6-2.9-2.9-2.4-1.4-0.11.11.821.91.30.4-0.5-1.1-1.5-1.3-0.6

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (9,2,3,4)
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Ground Weather Radar Station Sacramento, 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.