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Marine Weather and Tides Diablo, CA Version 3.4

NOTICE 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. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

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Sunrise 7:14AM

Sunset 6:33PM

Monday October 14, 2019 4:27 AM PDT (11:27 UTC)

Moonrise 6:24PM

Moonset 6:52AM

Illumination 99%

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.

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7 Day Forecast for Marine Location Near Diablo, CA

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Area Discussion for - San Francisco/Monterey Bay Area, CA

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Fxus66 kmtr 141116 afdmtr area forecast discussion national weather service san francisco bay area 416 am pdt Mon oct 14 2019 Synopsis Seasonably mild conditions will persist through Tuesday. A frontal system will move through the region late Wednesday and may produce light rain over the northern portions of the north bay. Post-frontal breezy conditions and cooler temperatures are expected from late Wednesday through Thursday and may persist into the upcoming weekend. Discussion As of 3:27 am pdt Monday... Patchy low clouds persist along portions of the coast this morning and have spread locally inland down into the salinas valley. Meanwhile, more widespread fog is being reported over the sonoma valley with temperatures ranging from the middle 40s to lower 50s region-wide. This is in response to a mid upper level trough over much of the west coast. Low clouds and fog will begin to dissipate after sunrise with temperatures warming into the 70s to lower 80s inland this afternoon. Coastal locations will likely only warm into the upper 60s to lower 70s as onshore flow persists. Temperatures look to warm by a few degrees heading into Tuesday as a weak short-wave ridge will move over the region in wake of the exiting mid upper level trough. Conditions will cool slightly over the northern portion of the region on Wednesday in advance of an approaching weather system. The core of this system will push inland over the pacific northwest and drive a weak frontal boundary into northern california late Wednesday into Wednesday night. Thus, a slight chance of rain remains in the forecast for the north bay. However, measurable rainfall south of northern sonoma county appear unlikely as the frontal system dissipates Wednesday night into Thursday morning. This system will also result in cooler temperatures region-wide through late week. In addition, locally gusty post-frontal northwest winds are expected Wednesday into Thursday, primarily in coastal locations.

Breezy conditions will likely continue through late week and potentially into the upcoming weekend with temperatures near to slightly below seasonal averages. Ongoing dry weather conditions are also likely to persist late in the forecast period. Aviation As of 4:16 am pdt Monday... For 12z tafs. Infrared satellite imagery shows some areas of low clouds fog along the central california coast this morning, pushing inland to parts of the north bay and salinas valley. Most TAF sites will remainVFR through the TAF period with the exception being sts, sns, and possibly mry this morning with low ceilings and or visibilities for another several hours. Light winds this morning will become onshore this afternoon. Vicinity of ksfo...VFR conditions are forecast to prevail. Low clouds should remain on the pacific side of the peninsula away from the terminal. Light variable winds this morning will become onshore this afternoon around 10-15 kt. Sfo bridge approach... Similar to ksfo. Monterey bay terminals... Ifr ceilings will impact sns over the next few hours, then becomingVFR around mid-morning. Mry may see temporary over the next few hours, otherwise remainingVFR this morning. Light offshore winds will switch onshore around mid-day. Marine As of 2:35 am pdt Monday... Generally light northwest winds will prevail over the coastal waters through columbus day. Mixed seas will continue over the next few days with a light shorter period northwest swell and a light southerly swell. A larger northwest swell is forecast to arrive later this week with forerunners expected in the next couple days. Mtr watches warnings advisories Tday Sca... Pt arena to pigeon pt 10-60 nm until 9 am sca... Pigeon pt to pt piedras blancas 10-60 nm until 9 am public forecast: rgass aviation: rowe marine: rowe visit us at

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA	12 mi	58 min	NW 8.9 G 11	60°F			1011.2 hPa
PCOC1 - 9415144 - Port Chicago, CA	15 mi	58 min	SW 7 G 9.9	52°F	65°F		1012.3 hPa
MZXC1 - 9415102 - Martinez-Amorco CA	16 mi	58 min	WNW 8.9 G 11	54°F	64°F		1012.3 hPa	54°F
UPBC1	16 mi	58 min	WNW 7 G 11
LNDC1	20 mi	58 min	SE 2.9 G 4.1	55°F			1012.5 hPa
AAMC1 - 9414750 - Alameda, CA	22 mi	64 min	E 1.9 G 2.9	54°F	63°F		1013.1 hPa
OBXC1	23 mi	58 min		55°F				54°F
OKXC1 - 9414776 - Oakland (Berth 34), CA	23 mi	58 min	Calm G 1	54°F			1012.6 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA	23 mi	58 min	S 1.9 G 1.9
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA	23 mi	58 min	SW 7 G 8.9	54°F			1012.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA	24 mi	58 min	SSW 5.1 G 7	56°F			1013 hPa
SFXC1 - San Francisco Bay Reserve, CA	24 mi	103 min	W 2.9	49°F			1012 hPa	47°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA	26 mi	58 min	Calm G 1	54°F			1011.6 hPa
PXSC1	26 mi	58 min		55°F				53°F
RCMC1 - 9414863 - Richmond, CA	27 mi	58 min			60°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA	29 mi	41 min	Calm	53°F			1012 hPa
FTPC1 - 9414290 - San Francisco, CA	30 mi	58 min	S 4.1 G 5.1	54°F	57°F		1012.9 hPa
RTYC1 - 9414523 - Redwood City, CA	30 mi	58 min	S 2.9 G 2.9	52°F	67°F		1013.4 hPa
46237 - San Francisco Bar, CA (142)	39 mi	58 min			55°F	5 ft

Wind History for Port Chicago, CA

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Concord, Buchanan Field, CA	11 mi	35 min	N 0	10.00 mi	Fair	47°F	35°F	63%	1010.9 hPa
Livermore, Livermore Municipal Airport, CA	13 mi	35 min	ENE 3	10.00 mi	Fair	46°F	32°F	58%	1012.3 hPa
Hayward, Hayward Air Terminal, CA	18 mi	34 min	ENE 3	10.00 mi	Fair	49°F	41°F	74%	1013.7 hPa
Oakland, Metro Oakland International Airport, CA	20 mi	35 min	N 0	10.00 mi	A Few Clouds	47°F	44°F	90%	1013 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)

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Tide / Current Tables for Pittsburg, New York Slough, Suisun Bay, California

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Tide / Current Tables for Antioch Pt .3 mi E, San Joaquin River, California Current

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Weather Map

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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

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Wind Forecast for San Francisco/Monterey Bay Area, CA (7,2,3,4)

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Ground Weather Radar Station Sacramento, CA

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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 numerious 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.