Monday, July24, 2017 L-36.com


Marine Weather and Tides
Port Costa, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:04AMSunset 8:25PM Monday July 24, 2017 1:50 PM PDT (20:50 UTC) Moonrise 6:33AMMoonset 8:32PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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 San Francisco Bay North Of The Bay Bridge- 926 Am Pdt Mon Jul 24 2017
.small craft advisory in effect until 9 pm pdt this evening...
Today..SW winds 15 to 25 kt. Patchy fog late in the morning.
Tonight..SW winds 15 to 25 kt...decreasing to 5 to 15 kt after midnight. Patchy fog after midnight.
Tue..SW winds 10 to 20 kt. Patchy fog in the morning.
Tue night..SW winds 10 to 20 kt. Patchy fog after midnight.
Wed..SW winds 10 to 20 kt. Patchy fog in the morning.
Thu..SW winds 5 to 15 kt.
Fri..SW winds 5 kt...increasing to 5 to 15 kt.
PZZ500 926 Am Pdt Mon Jul 24 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A weak low pressure system off the california coast will result in light to moderate southerly flow along the coast. Northerly winds will return midweek as low pressure moves inland and high pressure builds over the eastern pacific.

7 Day Forecast for Marine Location Near Port Costa, CA
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location: 38.03, -122.15     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 241610
afdsto
area forecast discussion
national weather service sacramento ca
910 am pdt Mon jul 24 2017

Synopsis
Slight chance of afternoon and evening showers or thunderstorms
across portions of the interior mountains through Tuesday. Cooler
today and tomorrow with near normal temperatures, then warming
remainder of the week.

Discussion
580 dm upper low centered about 110 nm west of kuki will be main
weather feature for interior norcal over the next 48 hours.

Satellite imagery showing area of ACCAS rotating around western
and eastern portions of this feature this morning. Marine layer
has deepened in response to the low and is currently around 1900
ft thick at fort ord. Moderate flow through the delta this morning
is advecting some cooler marine air into portions of the central
valley. Low will provide some synoptic cooling across the cwa
today with greatest cooling expected in delta influenced areas.

Nam GFS elevated instability progs showing increased 700-500 mb mu
cape and higher tt values to support slight chance of isolated
showers thunderstorms over higher terrain of eastern shasta and
western plumas counties, and near sierra nevada crest this
afternoon.

Gfs NAM ec similar in slowly drifting low west today then
quasistationary INVOF of the coast Tuesday, filling it slightly.

Greater cooling expected over the forecast area tomorrow with high
temperatures forecast near normal. Best potential for deep moist
convection looks to be over the higher elevations of the coastal
range, shasta, western plumas, and sierra nevada in the
afternoon early evening.

Upper low progged to progress slowly Tuesday night into
Wednesday, weakening to trough Wednesday night as it pushes ene of
the forecast area. Potential for any mountain shower thunderstorm
activity looks less likely Wednesday. Temperatures rebound a few
degrees Wednesday as upper low weakens.

Heights increase over the area Thursday as upper ridging from the
desert SW expands NW towards norcal. Dry weather expected Thursday
as triple digit heat returns across much of the central valley.

Pch
.Extended discussion (Friday through Monday)
upper ridge rebuilds across interior norcal late this week into
the weekend. This will result in daytime highs about 5-10 degrees
above normal. There are model differences in terms of the position
and strength of this ridge. At this point, the ECMWF is the
further westward and strongest solution. Thus, how much warming
will occur over the weekend remains in question given model
uncertainty. Dry weather is expected across interior norcal during
the extended period. However, the GFS is indicating an embedded
disturbance in the upper flow that could trigger some afternoon
shower activity near the sierra crest on Sunday. Have kept the
area dry for now given model uncertainty.

Aviation
Vfr conditions the next 24 hours across interior norcal. Winds
will remain light today, except gusts to 25 kt near the delta and
over higher terrain. Slight chance of isolated thunderstorms over
higher mountain terrain between 22z-03z.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 1 mi50 min W 19 G 22 67°F 71°F1010.8 hPa (+0.0)58°F
PCOC1 - 9415144 - Port Chicago, CA 6 mi50 min W 20 G 24 67°F 72°F1010.5 hPa (+0.0)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 6 mi50 min WSW 15 G 20 63°F 1011.1 hPa (+0.0)
SFXC1 - San Francisco Bay Reserve, CA 13 mi65 min WNW 12 74°F 1010 hPa57°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 14 mi50 min WSW 18 G 25 62°F 1011.8 hPa (+0.0)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 14 mi56 min NW 14 G 20 69°F 1009.9 hPa
RCMC1 - 9414863 - Richmond, CA 16 mi50 min WSW 8.9 G 15 61°F 64°F1011.8 hPa (+0.3)
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi50 min W 7 G 8.9 65°F 1011.5 hPa (+0.0)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi50 min W 7 G 9.9
LNDC1 18 mi50 min WNW 2.9 G 9.9 67°F 1011.3 hPa
OBXC1 19 mi50 min 64°F 56°F
AAMC1 - 9414750 - Alameda, CA 20 mi50 min W 5.1 G 8 68°F 67°F1011.8 hPa (+0.0)
PXSC1 20 mi50 min 66°F 57°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi50 min WSW 8.9 G 15 65°F 1010.5 hPa
FTPC1 - 9414290 - San Francisco, CA 23 mi50 min SW 15 G 27 60°F 59°F1012.1 hPa (+0.0)
46237 - San Francisco Bar, CA (142) 31 mi50 min 56°F4 ft
RTYC1 - 9414523 - Redwood City, CA 36 mi50 min N 12 G 15 67°F 73°F1010.3 hPa (-0.4)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi60 min S 3.9 G 5.8 55°F 55°F5 ft1012.1 hPa (+0.3)
PRYC1 - 9415020 - Point Reyes, CA 44 mi50 min SE 12 G 18 61°F 56°F1011.7 hPa (+0.3)

Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi57 minW 1510.00 miFair78°F55°F45%1008.5 hPa
Napa, Napa County Airport, CA14 mi56 minS 1710.00 miFair74°F55°F54%1010.1 hPa
Fairfield / Travis Air Force Base, CA21 mi52 minWSW 18 G 2410.00 miFair and Breezy80°F49°F35%1009.8 hPa
Novato / Gnoss Field, CA23 mi55 minNE 610.00 miFair79°F55°F45%1010.8 hPa
Oakland, Metro Oakland International Airport, CA23 mi57 minNW 710.00 miA Few Clouds74°F55°F54%1011.1 hPa

Wind History from CCR (wind in knots)
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Last 24hrNW10NW13W9W13SW12SW11W8NW5W7N6NW9NW7N6NW6--W6W10W8W11W8NW9W10W11W15
1 day agoNW8NW11NW10NW10NW11NW10NW8W7SW8SW4S6SW5CalmN5N4CalmCalmCalmN5CalmNW10NW8N4NW8
2 days agoNW10NW10W8W10W8S11S10S10S13SW9SW11S11W3SW3CalmCalmN3CalmCalmCalmNW4N7N6NW7

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Mon -- 02:09 AM PDT     6.23 feet High Tide
Mon -- 06:05 AM PDT     Sunrise
Mon -- 07:33 AM PDT     Moonrise
Mon -- 09:41 AM PDT     -0.62 feet Low Tide
Mon -- 04:05 PM PDT     4.95 feet High Tide
Mon -- 08:24 PM PDT     Sunset
Mon -- 09:23 PM PDT     1.86 feet Low Tide
Mon -- 09:31 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
55.86.265.242.61.30.3-0.5-0.6-01.12.53.74.654.73.93.12.31.922.6

Tide / Current Tables for Carquinez Strait, California Current
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Carquinez Strait
Click for Map
Mon -- 12:46 AM PDT     2.51 knots Max Flood
Mon -- 03:52 AM PDT     -0.00 knots Slack
Mon -- 06:05 AM PDT     Sunrise
Mon -- 07:33 AM PDT     Moonrise
Mon -- 07:46 AM PDT     -3.35 knots Max Ebb
Mon -- 11:34 AM PDT     0.01 knots Slack
Mon -- 02:46 PM PDT     2.15 knots Max Flood
Mon -- 05:57 PM PDT     -0.00 knots Slack
Mon -- 08:24 PM PDT     Sunset
Mon -- 08:42 PM PDT     -1.54 knots Max Ebb
Mon -- 09:32 PM PDT     Moonset
Mon -- 10:55 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.521.1-0.2-1.6-2.7-3.2-3.3-3-2.2-0.80.61.522.11.81-0-0.9-1.4-1.5-10.1

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Sacramento, CA (16,3,4,5)
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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 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.