Saturday, July11, 2020
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Marine Weather and Tides
Bay Point, 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 5:52AMSunset 8:33PM Friday July 10, 2020 10:00 PM PDT (05:00 UTC) Moonrise 11:16PMMoonset 10:17AM Illumination 68% Phase: Waning Gibbous; Moon at 20 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- 900 Pm Pdt Fri Jul 10 2020
Tonight..SW winds 5 to 15 kt.
Sat..SW winds 10 to 20 kt with gusts up to 25 kt.
Sat night..SW winds 5 to 15 kt.
Sun..SW winds 5 to 15 kt with gusts up to 25 kt.
Sun night..SW winds 5 to 15 kt.
Mon..SW winds 10 to 20 kt with gusts up to 30 kt.
Mon night..SW winds 5 to 15 kt.
Tue..SW winds 5 to 15 kt.
Wed..SW winds 5 to 15 kt.
PZZ500 900 Pm Pdt Fri Jul 10 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderately strong northwesterly winds will prevail through the weekend. This will maintain fresh short period swells from the northwest across the coastal waters that will mix with a longer period southerly swell. Strong winds will result in hazardous conditions especially for small craft.


7 Day Forecast for Marine Location Near Bay Point, CA
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location: 38.04, -121.94     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 102129 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 229 PM PDT Fri Jul 10 2020

SYNOPSIS. Dry weather with seasonably hot temperatures are forecast this weekend and into next week.

DISCUSSION. Aside some passing high clouds, mostly sunny conditions continue to dominate the skies across central and northern California this afternoon. Current temperatures are generally running at or several degrees warmer compared to this time yesterday. Friday afternoon highs will peak in the upper 90s to low 100s.

Main message for the weekend and into next week will be the heat. A broad upper level ridge located in the Southwestern US will be largely responsible for the widespread and persistent above normal temperatures for much of the Golden State. The strength and scale of this ridge is impressive; most forecast models are advertising geopotential heights at 500 millibars maxing at 600 decameters over New Mexico, and heights at/above 590 decameters over nearly all of California by Saturday. The hottest days for the southern Sacramento Valley will likely occur on Sunday and Monday while the northern Sacramento Valley will peak a day or two later. Overall, temperatures will be around 5 to 10 degrees above normal. Heat risk will be limited to the moderate category as most communities will see overnight lows cooling to the 60s. Some locations will struggle to drop below 70, but this appears to be limited at this point to the northern Sacramento Valley and the adjacent foothills.

The afternoon/overnight Delta breeze will bring locally gusty winds to the Delta region over the next several days. These winds combined with the hot and dry conditions will lead to several hours of elevated fire weather concerns each day this weekend. //Rowe

EXTENDED DISCUSSION (Tuesday THROUGH Friday).

The 5H Cluster analysis indicates anticyclonic flow from the strong high pressure cell over the Ern Pac will prevail over Norcal, lessening the influence of the Desert SW high. This will maintain a dry, subsiding air mass over Norcal. Tue and Wed appear to be the hottest days in the EFP with a +1 to +2 temp anomaly from 850 mbs to 500 mbs. The 850 mbs temp anomaly favors the Nrn half of the Sac Vly and surrounding higher terrain where 850 mbs temps are forecast to be in the 26-29 deg C temp range. Dry adiabatic descent from 850 mbs supports max temps in the 105-111 deg F range with a 17% chance of hitting 110 at RDD on Tue and 28% on Wed. The percentages drop off significantly at RBL and elsewhere due to onshore/up valley flow in the afternoons/evenings instead of the warming/katabatic winds. However, this pattern will result in strong thermal belts overnight and elevated min temps in those areas. Fortunately we are not anticipating much wind during the period, except in the Carquinez Strait/Delta region with the typical Delta Breeze.

A cooling trend is anticipated Thu/Fri as a relatively weak trof moves through the Pac NW. Deterministic runs vary as to the amount of cooling with the GFS (ECMWF) basically warmer (cooler) than the ECMWF (GFS). The 5H EOF monopole suggests uncertainty in the amplitude of the Pac NW trof so we relied on the NBM max forecast which showed about a 5-6 degree F drop in max temps from Wed over the Nrn/central Sac Vly, and a trend to normal max temps in the Srn Sac Vly, foothills and marine/Delta areas. JHM

AVIATION.

VFR mostly SKC conditions through 00z Sun. Winds remain under 10 kts except through the Carquinez Strait and Delta with gusts to 20-25 kts at times.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 3 mi43 min W 6 G 9.9 83°F 1013 hPa
PCOC1 - 9415144 - Port Chicago, CA 5 mi43 min WSW 8.9 G 9.9 76°F 72°F1013.4 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 10 mi43 min W 8.9 G 11 77°F 70°F1013.8 hPa
UPBC1 10 mi43 min W 8 G 9.9
SFXC1 - San Francisco Bay Reserve, CA 12 mi76 min W 7
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 17 mi43 min WSW 7 G 8.9 72°F 1013.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 24 mi43 min S 16 G 19 60°F 1015.5 hPa
LNDC1 25 mi43 min W 5.1 G 6 62°F 1015.3 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 26 mi43 min WSW 6 G 7 61°F 1015.3 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 26 mi43 min WSW 8 G 8.9
RCMC1 - 9414863 - Richmond, CA 26 mi43 min S 8 G 11 61°F 65°F1014.5 hPa
OBXC1 27 mi43 min 60°F 55°F
AAMC1 - 9414750 - Alameda, CA 27 mi43 min W 6 G 8 61°F 71°F1015.5 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi43 min SW 2.9 G 6 59°F 1014.4 hPa
PXSC1 29 mi43 min 60°F 55°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 29 mi33 min SSW 5.1 60°F 1015 hPa
FTPC1 - 9414290 - San Francisco, CA 32 mi43 min SW 2.9 G 8 57°F 62°F1015.6 hPa
RTYC1 - 9414523 - Redwood City, CA 40 mi43 min NW 1.9 G 6 64°F 74°F1015.8 hPa
46237 - San Francisco Bar, CA (142) 41 mi31 min 58°F4 ft

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA7 mi68 minSW 810.00 miFair83°F43°F24%1012.2 hPa
Fairfield / Travis Air Force Base, CA17 mi63 minSW 1610.00 miFair76°F48°F38%1013.1 hPa
Napa, Napa County Airport, CA22 mi67 minS 510.00 miFair66°F55°F68%1013.2 hPa
Vacaville Nut Tree Airport, CA23 mi68 minS 410.00 miFair86°F39°F19%1012.1 hPa
Livermore, Livermore Municipal Airport, CA24 mi68 minW 310.00 miFair78°F45°F31%1013.7 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hrCalmS7S5S10S7S8SW7--CalmSW3NW4CalmNW6NW9N8NW9NW10NW13W9W10SW11SW8SW8S7
1 day agoS13S15S13S13
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2 days agoS8S9S11S11S9S7SW6S6S5S4S4Calm--N9NW11NW10W10SW13
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G22

Tide / Current Tables for Mallard Island Ferry Wharf, Suisun Bay, California
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Mallard Island Ferry Wharf
Click for Map
Sat -- 12:15 AM PDT     Moonrise
Sat -- 02:32 AM PDT     1.42 feet Low Tide
Sat -- 05:54 AM PDT     Sunrise
Sat -- 07:34 AM PDT     3.06 feet High Tide
Sat -- 12:14 PM PDT     Moonset
Sat -- 02:25 PM PDT     0.25 feet Low Tide
Sat -- 08:31 PM PDT     Sunset
Sat -- 09:22 PM PDT     3.59 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.21.71.51.51.82.32.8332.82.31.710.50.30.30.71.32.12.83.33.63.53.2

Tide / Current Tables for Stake Point .9 Mi NNW, Suisun Bay, California Current
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Stake Point .9 Mi NNW
Click for Map
Sat -- 12:15 AM PDT     Moonrise
Sat -- 12:40 AM PDT     -0.47 knots Max Ebb
Sat -- 03:10 AM PDT     0.00 knots Slack
Sat -- 05:54 AM PDT     Sunrise
Sat -- 06:18 AM PDT     0.56 knots Max Flood
Sat -- 08:54 AM PDT     -0.00 knots Slack
Sat -- 12:07 PM PDT     -0.72 knots Max Ebb
Sat -- 12:14 PM PDT     Moonset
Sat -- 03:25 PM PDT     0.00 knots Slack
Sat -- 07:15 PM PDT     0.86 knots Max Flood
Sat -- 08:31 PM PDT     Sunset
Sat -- 10:33 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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-0.4-0.5-0.3-0.10.20.50.60.50.3-0-0.4-0.6-0.7-0.7-0.5-0.20.20.60.80.90.80.60.2-0.1

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 (1,6,7,8)
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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.