Thursday, June21, 2018 L-36.com


Marine Weather and Tides
Port Costa, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:44AMSunset 8:36PM Thursday June 21, 2018 7:20 AM PDT (14:20 UTC) Moonrise 1:33PMMoonset 12:59AM Illumination 57% Phase: First Quarter Moon; Moon at 8 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- 240 Am Pdt Thu Jun 21 2018
Today..SW winds 10 to 20 kt.
Tonight..SW winds 10 to 20 kt.
Fri..SW winds 10 to 20 kt.
Fri night..SW winds 10 to 20 kt.
Sat..SW winds 10 to 20 kt.
Sun..SW winds 15 to 25 kt.
Mon..SW winds 5 to 15 kt. Patchy fog.
PZZ500 240 Am Pdt Thu Jun 21 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the eastern pacific will continue to strengthen through the rest of the week and into the weekend. In response, strong and gusty northwest winds are expected to affect the majority of the coastal waters zones through this period. Winds are expected to be strongest over the northern outer most coastal waters, strengthening to near gale force, with gale force gusts, by Friday evening through Saturday morning. As a result of the strong winds, steep and hazardous seas are likely for the majority of the coastal waters through at least the first half of the weekend.

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 211034
afdsto
area forecast discussion
national weather service sacramento ca
334 am pdt Thu jun 21 2018

Synopsis
Hot and dry weather this week, peaking this weekend.

Discussion
Clear skies across interior norcal early this morning. Onshore
flow continues into the central valley and the marine layer remain
around 1k feet deep with satellite imagery showing stratus along
the coast extending locally inland in the bay area. Current
temperatures are running several degrees cooler compared to 24
hours ago thru much of the valley while readings elsewhere are
slightly milder.

Effects from yesterday's short-wave will linger this morning, but
anti-cyclonic flow aloft will return this afternoon leading to
slightly warmer temperatures compared to Wednesday as onshore
flow is expected to slacken a bit.

Widespread triple digit heat is expected on Friday as surface flow
becomes northerly and the delta breeze diminishes. Temperatures
will be as hot or perhaps slightly hotter on Saturday. Given the
potential for heat-related illnesses with this sharp but
relatively brief heat stretch, an excessive heat watch has been
issued across the sacramento and northern sj valleys, along with
adjacent foothills.

.Extended discussion (Monday through Thursday)
upper trof moving through the pac NW on Mon will bring some
cooling to norcal as sun's ridge axis is pushed inland by the
trof. Lowering 5h heights and synoptic cooling should lower max
temps some 5-10 degrees most locations. Slight differences in the
modeling beyond Mon into the middle of the week results in some
uncertainty as to the amount of cooling (or lack of cooling) over
norcal as the mod trend tool shows a rather stable forecast 5h
pattern over norcal until Wed when there is just a slight
variation. Although there should be an increase in onshore
gradients by midweek which should provide some cooling to the
delta influenced areas, the warmth should continue elsewhere. Have
adjusted most of the temps upward during the efp wrt to the mex
guidance. However, more significant height falls on Thu should
offer a little more cooling to our cwa. The closed low descending
into norcal next Sat (30th) per the ECMWF looks overdone, but can
certainly buy off on a more progressive trof per the GFS given the
time of year. Jhm

Aviation
Vfr mostly skc conditions through tonite with winds generally
under 10 knots except through the carquinez strait delta, where
gusts to 25 kt are possible through 15z Thu and again after 03z fri.

Sto watches warnings advisories
Fire weather watch from Saturday morning through Sunday morning
for carquinez strait and delta-central sacramento valley in
glenn, colusa, yuba, northern sutter, and butte county below
1000 ft-eastern mendocino nf-eastern portion of shasta trinity
nf-lake county portion of lake-napa-sonoma unit-northern
motherlode from 1000 to 3000 ft. Includes portions of nevada-
yuba-placer-amador and eldorado units-northern sacramento valley
to southern tehama county line below 1000 ft-northern san
joaquin valley in san joaquin and stanislaus counties below 1000
ft-northern sierra foothills from 1000 to 3000 ft. Includes
portions of shasta-trinity and butte units-southeast edge shasta-
trinity nf and western portions of tehama-glenn unit-southern
motherlode from 1000 to 3000 ft. Includes portions of calaveras-
tuolumne unit-southern sacramento valley in yolo-sacramento far
western placer, southern sutter and solano county below 1000 ft.

Excessive heat watch from Friday afternoon through Sunday
evening for carquinez strait and delta-central sacramento valley-
clear lake southern lake county-motherlode-mountains
southwestern shasta county to northern lake county-northeast
foothills sacramento valley-northern sacramento valley-northern
san joaquin valley-southern sacramento valley.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 1 mi51 min WSW 4.1 G 7 57°F 66°F1015.7 hPa53°F
PCOC1 - 9415144 - Port Chicago, CA 6 mi51 min SW 6 G 9.9 53°F 67°F1015.3 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 6 mi51 min WSW 8 G 13 56°F 1015.4 hPa
SFXC1 - San Francisco Bay Reserve, CA 13 mi96 min WNW 8 53°F 1014 hPa51°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 14 mi51 min SSE 9.9 G 13 55°F 1016.6 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 14 mi51 min WNW 12 G 15 58°F 1014.4 hPa
RCMC1 - 9414863 - Richmond, CA 16 mi57 min SSE 7 G 9.9 54°F 60°F1016.1 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 18 mi58 min WSW 1 51°F 1016 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi51 min SW 7 G 9.9
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi51 min SW 5.1 G 8 53°F 1016.6 hPa
LNDC1 18 mi51 min SSE 5.1 G 7 54°F 1016.5 hPa
OBXC1 19 mi51 min 53°F 52°F
PXSC1 20 mi51 min 54°F 52°F
AAMC1 - 9414750 - Alameda, CA 20 mi57 min WSW 2.9 G 6 54°F 66°F1016.7 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi51 min SSE 1.9 G 6 52°F 1015.4 hPa
FTPC1 - 9414290 - San Francisco, CA 23 mi57 min WSW 1.9 G 5.1 52°F 58°F1016.5 hPa
46237 - San Francisco Bar, CA (142) 31 mi51 min 52°F5 ft
RTYC1 - 9414523 - Redwood City, CA 36 mi51 min W 8.9 G 9.9 54°F 69°F1017.4 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi41 min NW 19 G 25 53°F 52°F1017.1 hPa53°F
PRYC1 - 9415020 - Point Reyes, CA 44 mi51 min NW 22 G 27 53°F1016.1 hPa

Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi28 minSSW 1310.00 miFair56°F48°F77%1014.4 hPa
Napa, Napa County Airport, CA14 mi27 minN 010.00 miFair50°F48°F93%1015.2 hPa
Fairfield / Travis Air Force Base, CA21 mi83 minSW 1510.00 miFair53°F48°F85%1014.2 hPa
Novato / Gnoss Field, CA23 mi46 minN 010.00 miFair48°F46°F94%1016.3 hPa
Oakland, Metro Oakland International Airport, CA23 mi28 minN 06.00 miFog/Mist54°F50°F87%1016.9 hPa

Wind History from CCR (wind in knots)
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Last 24hrSW11S11S13S11SW8W10
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1 day agoSW10S10S6CalmCalmNW12NW14NW11NW15W12W11W11W13S8S10S9S9S10S8S10SW13SW8SW6SW10
2 days agoW5SW46NW106NW12NW11W10W10W9W11W11SW13S6S7SW4CalmCalmCalmS7SW8SW5SW7S7

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Thu -- 01:58 AM PDT     Moonset
Thu -- 03:30 AM PDT     0.90 feet Low Tide
Thu -- 05:46 AM PDT     Sunrise
Thu -- 09:13 AM PDT     3.76 feet High Tide
Thu -- 02:32 PM PDT     Moonrise
Thu -- 03:19 PM PDT     0.26 feet Low Tide
Thu -- 08:34 PM PDT     Sunset
Thu -- 10:04 PM PDT     5.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.22.31.5111.42.22.93.53.73.632.11.30.60.30.4123.14.14.95.25

Tide / Current Tables for Carquinez Strait, California Current
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Carquinez Strait
Click for Map
Thu -- 01:58 AM PDT     Moonset
Thu -- 02:31 AM PDT     -2.30 knots Max Ebb
Thu -- 05:26 AM PDT     0.00 knots Slack
Thu -- 05:46 AM PDT     Sunrise
Thu -- 08:08 AM PDT     1.53 knots Max Flood
Thu -- 10:43 AM PDT     -0.00 knots Slack
Thu -- 02:11 PM PDT     -2.30 knots Max Ebb
Thu -- 02:32 PM PDT     Moonrise
Thu -- 05:12 PM PDT     0.00 knots Slack
Thu -- 08:35 PM PDT     Sunset
Thu -- 08:37 PM PDT     2.47 knots Max Flood
Thu -- 11:56 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-1.7-2.2-2.2-1.6-0.50.61.31.51.40.7-0.3-1.3-2-2.3-2.1-1.4-0.311.92.42.421.1

Weather Map and Satellite Images
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wmap_P
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (10,2,3,4)
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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.