Thursday, July29, 2021
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Marine Weather and Tides
Clyde, CA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:07AMSunset 8:21PM Thursday July 29, 2021 7:15 PM PDT (02:15 UTC) Moonrise 10:50PMMoonset 10:56AM 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- 238 Pm Pdt Thu Jul 29 2021
.small craft advisory in effect until 9 pm pdt this evening...
.small craft advisory in effect from Friday afternoon through Friday evening...
Tonight..SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt.
Fri..SW winds 15 to 20 kt with gusts up to 30 kt.
Fri night..SW winds 15 to 20 kt with gusts up to 30 kt.
Sat..SW winds 10 to 15 kt with gusts up to 25 kt.
Sat night..SW winds 10 to 15 kt with gusts up to 25 kt.
Sun..SW winds 10 to 15 kt with gusts up to 25 kt.
Sun night..SW winds 10 to 15 kt.
Mon..SW winds 10 to 15 kt.
Tue..SW winds 10 to 15 kt.
PZZ500 238 Pm Pdt Thu Jul 29 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Predominately light winds today, with locally gusty winds in the outer waters north of point reyes. In addition, the afternoon seabreeze will bring gusty west to southwest winds from the golden gate gap towards angel island, san pablo bay, and the carquinez strait through at least the next couple of days. Otherwise, a moderate southerly swell will persist in the waters.


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 292102 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 202 PM PDT Thu Jul 29 2021

SYNOPSIS. Late day mountain thunderstorm chances expected through the weekend. Above normal temperatures are expected through Friday with a slight cooling trend for the weekend and early next week.

DISCUSSION. Ridge of high pressure remains centered over much of the Central US with the western edge situated over California. This will continue to bring southwest flow into interior Northern California, drawing in monsoon moisture into the area. Afternoon and evening shower and thunderstorm chances continue over the next several days. Thunderstorms already began forming over the Sierra late this morning, and best chances will remain along and east of the Sierra crest south of Plumas County and along the Coastal Range. Better chances of more widespread mountain showers and thunderstorms are possible tomorrow as the potential spreads north into the Shasta County mountains. Any thunderstorm may be accompanied by gusty and erratic winds, brief downpours, and lightning.

Temperatures are forecast to remain above normal through tomorrow as high pressure remains over the area. Current temperatures around 1pm are overall similar to yesterday, and highs are forecast to top out around 100 to 108 degrees in the Valley and upper 70s to upper 90s in the mountains and foothills. Overnight temperatures are forecast to be fairly toasty once again tonight, only falling to the low to mid 70s in the Valley and foothills with some thermal belt locations in the foothills only falling to the low 80s. Wildfire smoke continues to impact temperatures around the Dixie Fire. Smoke is forecast to continue the diurnal flow that's generally been observed by draining into the northern Valley in the early morning hours before the southwest flow increases and pushes it back to the north/northeast.

An upper level trough forming off of the eastern Pacific Coast will lower heights over Northern California this weekend, moderating temperatures. Temperatures are forecast to fall back to near normal by Saturday, which is 90s across the Valley and foothills and 70s to upper 80s in the mountains. -HEC

EXTENDED DISCUSSION (Monday THROUGH Thursday). Northern California will likely see southwesterly onshore flow over the region throughout the extended forecast period. Cluster analysis is in agreement high pressure over the Southwestern US and troughing off the Pacific Northwest Coast will keep Northern California near seasonal temperatures with little day to day change in the forecast. Thermal belts will also continue to see mild overnight lows. This pattern will also support a Delta Breeze. Some discrepancies emerge by the later part of the week in terms of the depth and location of the trough off the Pacific Northwest Coast. This could lead to some changes in the forecast from persistence by the weekend.

AVIATION. VFR conditions at TAF sites with passing mid to high level clouds AOA 15K ft AGL. Local MVFR/IFR conditions in wildfire smoke over Plumas and Butte counties. Surface winds under 12 kts except local southwest gusts 25-30 kts vicinity west Delta. Isolated-scattered showers and thunderstorms over high elevations of the Sierra south of Tahoe with isolated activity north of Tahoe through 03z, weakening to isolated showers and dissipating after 07z. Chance of MVFR weather in heavier storms with isolated downdrafts G40 kts lee-side of Sierra. Temps AOA 105 deg F will result in density altitude 3000-3500 ft Thu and Fri afternoons.

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 mi45 min WSW 9.9 G 12 80°F 70°F1010.3 hPa
UPBC1 5 mi45 min WNW 9.9 G 13
MZXC1 - 9415102 - Martinez-Amorco CA 5 mi45 min WNW 11 G 14 82°F 69°F1010.7 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 8 mi45 min WNW 12 G 14 81°F 1009.8 hPa
CQUC1 10 mi56 min 69°F
SFXC1 - San Francisco Bay Reserve, CA 10 mi90 min W 11 86°F 1011 hPa60°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 12 mi45 min WSW 12 G 14 73°F 1010.6 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 20 mi45 min SSW 14 G 19 61°F 1012.2 hPa
LNDC1 22 mi45 min W 5.1 G 7 67°F 1012.3 hPa
RCMC1 - 9414863 - Richmond, CA 22 mi45 min WNW 1.9 G 6 65°F 65°F1012 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 23 mi45 min W 7 G 8 63°F 1012.4 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 24 mi64 min N 2.9 69°F 1012 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 24 mi45 min W 9.9 G 11
AAMC1 - 9414750 - Alameda, CA 24 mi45 min W 7 G 8.9 64°F 69°F1012.7 hPa
OBXC1 24 mi45 min 62°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 26 mi45 min W 7 G 13 62°F 1011.5 hPa
PXSC1 26 mi45 min 62°F 62°F
FTPC1 - 9414290 - San Francisco, CA 29 mi45 min W 6 G 12 57°F 62°F1012.7 hPa
46237 - San Francisco Bar, CA (142) 37 mi45 min 59°F3 ft
RTYC1 - 9414523 - Redwood City, CA 39 mi45 min NNW 11 G 12 68°F 1012.8 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 47 mi35 min W 3.9 G 7.8 59°F1013.4 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi22 minW 610.00 miFair90°F54°F29%1009.1 hPa
Fairfield / Travis Air Force Base, CA16 mi17 minWSW 1910.00 miFair and Breezy88°F54°F31%1009.7 hPa
Napa, Napa County Airport, CA16 mi21 minSSW 1210.00 miFair72°F60°F66%1010.3 hPa
Vacaville Nut Tree Airport, CA22 mi22 minSW 710.00 miFair100°F50°F18%1008.9 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hrSW10W7S7S10CalmNW4NW3N5NW4W4NW3NW5NW7NW8NW8NW9N10NW9NW11NW11NW9W10W6W6
1 day agoNW9NW8N5N3CalmNW4NW6N4NW3CalmNW3W3CalmN4N6NW8NW7NW9NW12NW13NW12W13W11W12
2 days agoW11W8NW6NW5CalmNW3W5NW4CalmCalmCalmCalmCalmNW6NW6NW4N8NW8NW455N8N6N9

Tide / Current Tables for Port Chicago, Suisun Bay, California
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Port Chicago
Click for Map
Thu -- 12:55 AM PDT     1.47 feet Low Tide
Thu -- 06:08 AM PDT     Sunrise
Thu -- 06:19 AM PDT     3.99 feet High Tide
Thu -- 11:56 AM PDT     Moonset
Thu -- 12:52 PM PDT     0.37 feet Low Tide
Thu -- 07:35 PM PDT     4.55 feet High Tide
Thu -- 08:19 PM PDT     Sunset
Thu -- 11:49 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.51.72.43.13.743.93.52.71.810.50.40.71.42.43.44.14.54.54.13.42.6

Tide / Current Tables for Roe Island S, Suisun Bay, California Current
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Roe Island S
Click for Map
Thu -- 02:53 AM PDT     0.00 knots Slack
Thu -- 05:13 AM PDT     0.64 knots Max Flood
Thu -- 06:08 AM PDT     Sunrise
Thu -- 08:05 AM PDT     -0.00 knots Slack
Thu -- 11:23 AM PDT     -1.95 knots Max Ebb
Thu -- 11:56 AM PDT     Moonset
Thu -- 03:10 PM PDT     0.00 knots Slack
Thu -- 05:56 PM PDT     0.86 knots Max Flood
Thu -- 08:19 PM PDT     Sunset
Thu -- 09:20 PM PDT     -0.00 knots Slack
Thu -- 11:49 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.4-1.2-0.60.10.50.60.60.40-0.8-1.6-1.9-1.9-1.6-1-0.20.40.80.90.80.50.1-0.5-1.2

Weather Map
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wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




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