Wednesday, April8, 2020
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Marine Weather and Tides
Clyde, 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 6:39AMSunset 7:39PM Wednesday April 8, 2020 12:09 PM PDT (19:09 UTC) Moonrise 7:42PMMoonset 6:24AM Illumination 99% 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- 829 Am Pdt Wed Apr 8 2020
Today..SW winds 5 to 15 kt.
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt.
Thu..S winds up to 10 kt.
Thu night..W winds 5 to 10 kt.
Fri..W winds 5 to 15 kt with gusts up to 25 kt.
Fri night..W winds 5 to 15 kt.
Sat..SW winds up to 10 kt.
Sun..NW winds up to 10 kt.
PZZ500 829 Am Pdt Wed Apr 8 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will continue to diminish today as the upper low slowly exits the region. Locally breezy winds will persist over the northern outer waters into this afternoon. Moderate northwest swell through the rest of the week along with a longer period southerly swell.


7 Day Forecast for Marine Location Near Clyde, CA
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location: 38.06, -122.04     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 081000 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 300 AM PDT Wed Apr 8 2020

Synopsis. Lingering showers possible in the southern CWA into Thursday, mainly over the Sierra Nevada. Otherwise dry and warmer with locally gusty northerly wind at times in the Central Valley.

Discussion. 548 DM closed upper low off the SoCal coast is progged to slowly shift inland later today. This will keep a threat of wrap around showers over southern portions of the CWA. Main threat will be over the Sierra Nevada. Meanwhile, EPAC high builds into the PacNW and sets up low level N-S pressure gradient over the Central Valley today with some locally breezy northerly wind. 1000-500 mb thicknesses on the rise today with downslope flow results in warming AMS. Guidance suggests high temperatures this afternoon will be upwards of 15 degrees warmer in northern portions of the Sacramento Valley with lower 80s expected.

Low level flow turns more upvalley Thursday resulting in slight cooling as suggested by guidance. In the northern mountains, AMS continues to warm as heights/thicknesses trend up. Max T's expected near to slightly above normal. Minor cooling and threat of showers continues Thursday in the southern CWA, with best chances over the Sierra Nevada.

Shower threat shifts south of the CWA Friday as upper ridging increases over NorCal. AMS warms under increasing subsidence with high temps 5 to 15 degrees above normal by the weekend.

PCH

EXTENDED DISCUSSION (Sunday THROUGH Wednesday). To finish out the weekend, a broad upper ridge will extend over the east Pacific while heights begin to lower across the Intermountain West. Weak ascent in response to the passing trough could spark a few showers over the Sierra on Sunday. Otherwise, the ridge/trough configuration will foster a period of breezy northerly winds across the Valley which extends into Monday. The offshore ridge should gradually re-establish its presence over the region based on the latest global ensembles. This enforces additional warm, dry weather into next week. Daily high temperatures across the Delta and Valley will sit in the mid/upper 70s, locally into the low 80s over the northern Sacramento Valley. This is roughly 5 to 10 degrees above mid-April climatology. ~BRO

AVIATION.

Mainly VFR conditions at TAF sites, except for local MVFR conditions in the northern San Joaquin Valley early Wednesday. Local areas of MVFR within any developing showers, mainly over the Sierra. Local northerly wind gusts up to 20 knots at northern terminals after 17Z.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCOC1 - 9415144 - Port Chicago, CA 0 mi52 min WNW 7 G 8 57°F 58°F1014 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 5 mi52 min WNW 5.1 G 8 57°F 58°F1014.4 hPa
UPBC1 5 mi52 min WNW 5.1 G 7
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 8 mi58 min NW 7 G 11 59°F 1014.1 hPa
SFXC1 - San Francisco Bay Reserve, CA 10 mi85 min W 7
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 12 mi52 min WSW 9.9 G 13 55°F 1014.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 20 mi52 min SSW 8 G 12 53°F 1015.5 hPa
LNDC1 22 mi52 min SW 5.1 G 6 53°F 1015.2 hPa
RCMC1 - 9414863 - Richmond, CA 22 mi52 min S 7 G 13 53°F 57°F1014.8 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 23 mi52 min SSW 5.1 G 8 53°F 1015.4 hPa
OBXC1 24 mi52 min 53°F 51°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 24 mi58 min SW 8.9 G 11
AAMC1 - 9414750 - Alameda, CA 24 mi52 min SW 4.1 G 5.1 53°F 58°F1015.3 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 24 mi36 min SSE 5.1 52°F 1015 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 26 mi52 min W 2.9 G 8.9 53°F 1014.3 hPa
PXSC1 26 mi52 min 54°F 52°F
FTPC1 - 9414290 - San Francisco, CA 29 mi52 min 58°F
46237 - San Francisco Bar, CA (142) 37 mi40 min 55°F5 ft
RTYC1 - 9414523 - Redwood City, CA 39 mi52 min N 5.1 G 6 56°F 59°F1015.5 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 47 mi30 min WSW 1.9 G 3.9 51°F 52°F1016 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi77 minN 010.00 miFair59°F48°F67%1013.1 hPa
Fairfield / Travis Air Force Base, CA16 mi72 minWSW 610.00 miA Few Clouds60°F49°F68%1014.9 hPa
Napa, Napa County Airport, CA16 mi76 minS 510.00 miOvercast54°F48°F80%1014.2 hPa
Vacaville Nut Tree Airport, CA22 mi77 minSSE 310.00 miFair59°F50°F72%1014.6 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hrNW4Calm4Calm5NW8NW13W14
G18
W8--S4CalmSE3S7S5S9S10
G20
S8CalmS6S6CalmCalmS7
1 day agoN7--CalmS11CalmN6W6S5CalmSW4CalmSE3CalmS4S4S5SW3CalmS3SE4CalmSE3Calm3
2 days agoSW12SW10SW11SW9SW14SW13SW6S6W3W4CalmCalmSE3S4S4CalmCalmCalmSE5--CalmN7NE8NE6

Tide / Current Tables for Port Chicago, Suisun Bay, California
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Port Chicago
Click for Map
Wed -- 02:47 AM PDT     5.05 feet High Tide
Wed -- 06:41 AM PDT     Sunrise
Wed -- 07:23 AM PDT     Moonset
Wed -- 09:26 AM PDT     -0.14 feet Low Tide
Wed -- 03:22 PM PDT     4.69 feet High Tide
Wed -- 07:38 PM PDT     Sunset
Wed -- 08:41 PM PDT     Moonrise
Wed -- 09:25 PM PDT     0.46 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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34.14.954.63.72.51.30.4-0.1-00.71.83.14.14.64.63.92.91.810.50.61.2

Tide / Current Tables for Roe Island S, Suisun Bay, California Current
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Roe Island S
Click for Map
Wed -- 01:15 AM PDT     1.03 knots Max Flood
Wed -- 04:28 AM PDT     -0.00 knots Slack
Wed -- 06:41 AM PDT     Sunrise
Wed -- 07:23 AM PDT     Moonset
Wed -- 07:49 AM PDT     -2.22 knots Max Ebb
Wed -- 11:29 AM PDT     0.00 knots Slack
Wed -- 02:01 PM PDT     0.96 knots Max Flood
Wed -- 05:04 PM PDT     -0.01 knots Slack
Wed -- 07:38 PM PDT     Sunset
Wed -- 07:57 PM PDT     -1.97 knots Max Ebb
Wed -- 08:41 PM PDT     Moonrise
Wed -- 11:21 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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0.8110.70.3-0.6-1.5-2.1-2.2-2-1.4-0.50.30.810.90.50-1-1.7-2-1.8-1.3-0.4

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 (15,3,4,5)
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Ground Weather Radar Station Sacramento, CA
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weather_mapweather_map weather_map

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Disclaimer:
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.