Friday, March22, 2019 L-36.com


Marine Weather and Tides
Concord, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:07AMSunset 7:22PM Friday March 22, 2019 7:08 AM PDT (14:08 UTC) Moonrise 8:34PMMoonset 7:29AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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- 254 Am Pdt Fri Mar 22 2019
Today..SE winds 5 to 15 kt. Rain.
Tonight..S winds 5 to 15 kt. Rain.
Sat..W winds 10 to 20 kt with gusts up to 25 kt.
Sat night..NW winds 5 to 15 kt.
Sun..E winds 5 to 15 kt.
Sun night..S winds 20 to 30 kt with gusts up to 40 kt. Rain likely.
Mon..SW winds 5 to 15 kt. Rain likely.
Tue..S winds 5 to 10 kt. Showers likely.
PZZ500 254 Am Pdt Fri Mar 22 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Southerly winds will increase over the waters through the day as a frontal system moves across the coastal waters. Winds will become northwesterly overnight and into Saturday behind the frontal passage. A moderate long-period swell will arrive over the next 24 hours and continue through Saturday, bringing hazardous seas to mariners in smaller vessels.


7 Day Forecast for Marine Location Near Concord, CA
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location: 38, -122     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 221348
afdsto
area forecast discussion
national weather service sacramento ca
648 am pdt Fri mar 22 2019

Synopsis
Another round of rain and snow this afternoon through Saturday
with enough mountain snow to impact weekend travel. Dry Sunday
then more rain and mountain snow Monday through most of next
week. Heaviest precipitation mid week.

Discussion
Clear skies over the forecast area this morning under small scale
upper level ridging. Satellite imagery shows a pacific frontal
system approaching the coast at this time with warm frontal cloud
cover and light showers approaching the coast. Cloud cover should
begin spreading over the forecast area through the morning hours
with some light precipitation entering the western CWA by mid day.

Models indicating main frontal band will push into the western cwa
by this afternoon and then into the sierra overnight.

Precipitation at the lower elevations is expected to be fairly
light with this system but good orographics will bring heavier
amounts over the sierra cascade range. Associated upper trough
moves across norcal on Saturday for continued shower activity. Should
see enough snowfall below pass levels from mid day today through
mid day Saturday to justify winter weather advisory currently in
place. Stability proggs indicating some minor instability moving
across the north state Saturday afternoon as the trough axis moves
through. Have kept thunderstorm threat for the sacramento valley
in the forecast even though the threat will be short lived with
trough axis expected to be along the ca nv border by 00z Sunday. Cloud
cover and cooler air associated with this system will bring
daytime highs back down below normal both today and Saturday.

Skies clear out Saturday night with a fair dry day expected
Sunday as another shortwave ridge slides across the state.

Daytime highs Sunday should push back up to around normal. Next
round of precipitation pushes quickly into norcal Sunday night
with the main frontal band pushing through the north state on
Monday. This system appears will be a little wetter than the
today Saturday system. Once again orographics will aid in
precipitation production so travel impacts over the sierra will
again be likely.

.Extended discussion (Tuesday through Friday)
showery precipitation continues on Tuesday with moist southwest
flow. Light snow accumulations are possible in the mountains.

There is some potential for afternoon convection in the valley,
but confidence isn't high enough to add mention of thunderstorms to
the forecast yet.

A stronger pacific storm arrives late Tuesday with more
widespread rain and mountain snow. The core of the storm moves
inland Wednesday and continues precipitation into Thursday.

Precipitation amounts for Tuesday through Thursday currently are
projected to be around 1 inch for the central valley and 2 inches
for the foothills and mountains. Mountain travel impacts due to
periods of heavy snow and strong wind are likely. Early estimates
of snow amounts are 1 to 2 feet above 5000 feet, potentially more
above 6000 feet. Friday looks drier with northwest flow, with just
some lingering light mountain showers. Ek

Aviation
Vfr conditions through 16z, becoming widespread MVFR with -ra
spreading across TAF sites by around 18z and continuing into
Saturday morning. Surface winds generally below 12 kt through 18z,
increasing to 12 to 15 kt over the northern sacramento valley,
with gusts to 20-25 kt. Ek

Sto watches warnings advisories
Winter weather advisory from 11 am this morning to 5 pm pdt
Saturday for west slope northern sierra nevada-western plumas
county lassen park.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCOC1 - 9415144 - Port Chicago, CA 4 mi38 min S 5.1 G 6 50°F 56°F1021.1 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 7 mi38 min SSE 4.1 G 4.1 51°F 56°F1021 hPa51°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 7 mi38 min SSE 1 G 2.9 51°F 1021 hPa
UPBC1 7 mi38 min SSW 1.9 G 5.1
SFXC1 - San Francisco Bay Reserve, CA 14 mi83 min SSW 2.9 50°F 1021 hPa47°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 15 mi38 min SSE 1.9 G 5.1 52°F 1020.8 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 20 mi38 min SE 11 G 15 52°F 1021.1 hPa
LNDC1 21 mi38 min SE 8.9 G 11 51°F 1020.9 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 22 mi38 min SE 7 G 9.9 51°F 1020.9 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 22 mi38 min ESE 6 G 11
AAMC1 - 9414750 - Alameda, CA 22 mi38 min ESE 7 G 8.9 51°F 58°F1021.3 hPa
RCMC1 - 9414863 - Richmond, CA 22 mi38 min SE 8 G 11 52°F 56°F1020.5 hPa
OBXC1 23 mi38 min 51°F 50°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 25 mi38 min SE 9.9 G 14 53°F 1019.7 hPa
PXSC1 25 mi38 min 54°F 50°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 25 mi63 min S 6 51°F 1021 hPa
FTPC1 - 9414290 - San Francisco, CA 28 mi38 min SE 4.1 G 5.1 52°F 55°F1021 hPa
RTYC1 - 9414523 - Redwood City, CA 36 mi38 min SE 6 G 7 49°F 61°F1021.6 hPa
46237 - San Francisco Bar, CA (142) 37 mi38 min 55°F7 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 48 mi38 min SSE 12 G 16 52°F 56°F1021.1 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA3 mi15 minSSW 610.00 miLight Rain51°F46°F83%1019.8 hPa
Fairfield / Travis Air Force Base, CA20 mi2.2 hrsSSW 310.00 miOvercast46°F42°F89%1021.3 hPa
Napa, Napa County Airport, CA21 mi14 minN 47.00 miLight Rain48°F45°F89%1020.1 hPa
Livermore, Livermore Municipal Airport, CA23 mi15 minE 310.00 miOvercast45°F42°F90%1021.1 hPa
Hayward, Hayward Air Terminal, CA24 mi14 minSE 610.00 miLight Rain58°F45°F62%1022.1 hPa
Oakland, Metro Oakland International Airport, CA24 mi15 minESE 88.00 miLight Rain51°F48°F92%1021.2 hPa

Wind History from CCR (wind in knots)
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Last 24hrS3--CalmN34N7NW11NW9W10W12--SW8SW3W4SW6SW5SW5SE3S5S5S5S4S5SW6
1 day agoS8S8S6S8SW10SW8SW11W7
G17
W13W12W10W10SW7SW6SW5E3SW4CalmS6S6CalmS4SE3Calm
2 days agoCalmCalmCalmCalmCalmNE4NE743NW8N8SW12Calm5S9SW10S12E4S5SE4SE3SE3SE3SE7

Tide / Current Tables for Port Chicago, Suisun Bay, California
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Port Chicago
Click for Map
Fri -- 03:46 AM PDT     5.04 feet High Tide
Fri -- 07:08 AM PDT     Sunrise
Fri -- 08:28 AM PDT     Moonset
Fri -- 10:14 AM PDT     0.22 feet Low Tide
Fri -- 04:07 PM PDT     4.84 feet High Tide
Fri -- 07:21 PM PDT     Sunset
Fri -- 09:34 PM PDT     Moonrise
Fri -- 10:21 PM PDT     0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.734.24.954.63.72.51.40.60.20.41.22.43.64.54.84.63.82.81.70.90.40.5

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
Fri -- 02:44 AM PDT     0.96 knots Max Flood
Fri -- 05:50 AM PDT     -0.01 knots Slack
Fri -- 07:08 AM PDT     Sunrise
Fri -- 08:28 AM PDT     Moonset
Fri -- 09:00 AM PDT     -0.75 knots Max Ebb
Fri -- 11:46 AM PDT     0.00 knots Slack
Fri -- 03:15 PM PDT     0.95 knots Max Flood
Fri -- 06:08 PM PDT     -0.00 knots Slack
Fri -- 07:21 PM PDT     Sunset
Fri -- 09:03 PM PDT     -0.79 knots Max Ebb
Fri -- 09:33 PM PDT     Moonrise
Fri -- 11:54 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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0.30.70.910.80.4-0.1-0.4-0.7-0.8-0.7-0.40.10.50.80.90.90.60.1-0.4-0.7-0.8-0.7-0.4

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.