Monday, May21, 2018 L-36.com


Marine Weather and Tides
Bay Point, 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 5:50AMSunset 8:18PM Monday May 21, 2018 7:20 PM PDT (02:20 UTC) Moonrise 11:21AMMoonset 12:33AM Illumination 47% Phase: First Quarter Moon; Moon at 7 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- 229 Pm Pdt Mon May 21 2018
.small craft advisory in effect until 9 pm pdt this evening...
Rest of today..SW winds 15 to 25 kt with gusts up to 35 kt.
Tonight..SW winds 10 to 20 kt with gusts up to 30 kt.
Tue..SW winds 10 to 20 kt with gusts up to 30 kt.
Tue night..SW winds 10 to 20 kt with gusts up to 30 kt.
Wed..SW winds 10 to 20 kt with gusts up to 25 kt.
Wed night..W winds 10 to 20 kt with gusts up to 25 kt.
Thu..SW winds 10 to 20 kt with gusts up to 25 kt.
Fri..SW winds up to 10 kt.
PZZ500 229 Pm Pdt Mon May 21 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate northwest winds will gradually decrease through the remainder of the day and tonight. The strongest winds will be located north of point reyes and will occasionally become gusty. These gusty winds may produce steep fresh swell. Mixed seas with a long period southwest swell combined with a shorter period northwest swell through the coming days.

7 Day Forecast for Marine Location Near Bay Point, CA
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location: 38.04, -121.94     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 212212
afdsto
area forecast discussion
national weather service sacramento ca
312 pm pdt Mon may 21 2018

Synopsis
Afternoon and evening thunderstorms possible mainly over higher
terrain this week. These may extend through the valley late in the
week. Seasonal temperatures continue across the region.

Discussion
An upper level low is centered over the mojave desert, with
easterly return flow into northern california. Showers and
thunderstorms are beginning to develop once again this afternoon
and continue into this evening. They are focused over the
northern sierra and southern cascades. At 3 pm, the strongest
storm was in eastern shasta county near shingletown, with other
thunderstorms near butte meadows in northern butte county,
extending to the south across tuolumne county. Some showers could
extend into the eastern side of the valley, but will weaken as
the move downslope. Storms overall are not expected to be severe,
but could have a brief periods of heavy rain, small hail, and
lightning. These are expected to continue through the evening,
with some isolated showers along the sierra crest overnight. The northern
coastal range should get a bit of a break, now that the low is
further south and east.

Thunderstorms are expected to become more widespread Tuesday and
Wednesday, across the mountains and potentially extending into
the northern sacramento valley. Late Thursday mountain and
foothill thunderstorms and widespread valley showers are forecast
as an upper low moves onshore.

Temperature are warmer today than over the weekend, currently
close to 90 degrees over the northern sacramento valley. A weaker
delta breeze is bringing relatively cooler temperatures to nearby
influenced areas. This will strengthen tonight, bringing more
significant cooling for Tuesday. Temperatures across the area
trend downward through Thursday, as another cool upper low
approaches. Highs on Thursday are expected to be below normal,
generally in the upper 70s to around 80 in the valley. Ek
.Extended discussion (Friday through Monday)
an upper level closed low is expected to approach norcal late
this week. Current model runs show this system impacting norcal
more than originally expected. Both the GFS and the ECMWF are in
fairly good agreement that the center of the low will move right
over norcal, bringing widespread showers and thunderstorms to the
area Friday, lingering into early Saturday. As such, I have
significantly increased the chance of precipitation for these
days. After Friday, there are slight differences in timing and
location of the low, though generally it will continue moving east
and out of the forecast area by Saturday night. Showers and
thunderstorms may linger over the mountains later Saturday into
early Sunday. The weather system will cool daytime temperatures
into the 70s across the valley and 40s to 60s for the foothills
and mountains, a whopping 10 to 15 degrees below normal.

Temperatures will rise back to near normal by Saturday. Ridging
begins to build Sunday and is expected to continue into early next
week. Temperatures will warm under the ridge with valley
locations nearing 90 degrees by Monday. Hec &&

Aviation
Showers and thunderstorms have formed over the northern sierra
nevada and will continue through the evening. Local MVFR ifr
conditions possible in these. Otherwise,VFR conditions over
interior norcal next 24 hours. Gusts up to 25 kts in delta until
00z Tuesday, increasing to 30 kts overnight. Winds less than 15
knots at TAF sites. Hec

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 3 mi50 min W 8.9 G 20 69°F 1007.5 hPa
PCOC1 - 9415144 - Port Chicago, CA 5 mi50 min SSW 9.9 G 16 66°F 65°F1008.2 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 10 mi50 min WNW 12 G 13 65°F 64°F1008.7 hPa51°F
SFXC1 - San Francisco Bay Reserve, CA 12 mi95 min W 12 71°F 1008 hPa54°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 17 mi50 min SW 15 G 22 60°F 1008.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 24 mi50 min S 12 G 14 58°F 1010.2 hPa
LNDC1 25 mi50 min WSW 11 G 15 56°F 1011 hPa
RCMC1 - 9414863 - Richmond, CA 26 mi50 min SSW 4.1 G 8 62°F 61°F1009.3 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 26 mi50 min SW 17 G 19
OKXC1 - 9414776 - Oakland (Berth 34), CA 26 mi50 min SW 8 G 12 58°F 1010.8 hPa
AAMC1 - 9414750 - Alameda, CA 27 mi50 min W 8.9 G 12 56°F 62°F1011.4 hPa
OBXC1 27 mi50 min 56°F 52°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 29 mi51 min WSW 6 60°F 1010 hPa
PXSC1 29 mi50 min 57°F 51°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi50 min WSW 13 G 19 56°F 1009.8 hPa
FTPC1 - 9414290 - San Francisco, CA 32 mi50 min WSW 14 G 20 55°F 56°F1010.7 hPa
RTYC1 - 9414523 - Redwood City, CA 40 mi50 min W 18 G 23 55°F 66°F1011.7 hPa
46237 - San Francisco Bar, CA (142) 41 mi50 min 54°F5 ft

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
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Last
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S17
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SW9
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G16
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SW8
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G11
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W14
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G15
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G21
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1 day
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SW8
G15
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G18
SW7
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G14
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G12
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G13
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G18
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G21
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G17
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S9
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G20
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G19
2 days
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W12
G16
SW7
G12
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G22
SW9
G16
SW9
G16
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G16
S8
G13
SW8
G11
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G14
SW6
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G10
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G18
W13
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G14
SW11
G17
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G22
W17
G21
SW16
G22
SW13
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SW12
G17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA7 mi27 minS 1810.00 miFair and Breezy65°F50°F59%1007.5 hPa
Fairfield / Travis Air Force Base, CA17 mi82 minWSW 20 G 2810.00 miPartly Cloudy and Breezy72°F53°F52%1007.4 hPa
Napa, Napa County Airport, CA22 mi26 minS 1410.00 miFair62°F52°F70%1008.1 hPa
Vacaville Nut Tree Airport, CA23 mi27 minSSW 10 G 1810.00 miFair73°F57°F57%1007.1 hPa
Livermore, Livermore Municipal Airport, CA24 mi27 minWNW 1210.00 miFair60°F53°F78%1010 hPa

Wind History from CCR (wind in knots)
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Last 24hrS16
G24
S14
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S12S10S12S14S13S11S11S9S9S9S10SW8S755SW9SW9SW14S15S15S14S18
1 day agoS15S18
G24
S20
G26
S16S15S13SW12SW12S10S10S13SW11SW10S11S12SW14S15
G20
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G23
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2 days agoS14
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S14S13S12
G17
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SW14S12
G18
S14S16S15S17S20S16S18S16S16S15S15S20

Tide / Current Tables for Mallard Island Ferry Wharf, Suisun Bay, California
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Mallard Island Ferry Wharf
Click for Map
Mon -- 01:32 AM PDT     Moonset
Mon -- 02:39 AM PDT     1.35 feet Low Tide
Mon -- 05:52 AM PDT     Sunrise
Mon -- 07:50 AM PDT     3.57 feet High Tide
Mon -- 12:20 PM PDT     Moonrise
Mon -- 03:38 PM PDT     -0.37 feet Low Tide
Mon -- 08:16 PM PDT     Sunset
Mon -- 08:50 PM PDT     First Quarter
Mon -- 10:19 PM PDT     3.46 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.31.71.41.41.72.333.53.63.42.92.21.30.60.1-0.3-0.300.71.62.43.13.43.4

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
Mon -- 01:12 AM PDT     -0.41 knots Max Ebb
Mon -- 01:32 AM PDT     Moonset
Mon -- 03:17 AM PDT     0.00 knots Slack
Mon -- 05:52 AM PDT     Sunrise
Mon -- 06:29 AM PDT     0.69 knots Max Flood
Mon -- 09:12 AM PDT     -0.00 knots Slack
Mon -- 12:20 PM PDT     Moonrise
Mon -- 12:43 PM PDT     -0.83 knots Max Ebb
Mon -- 04:23 PM PDT     0.00 knots Slack
Mon -- 08:16 PM PDT     Sunset
Mon -- 08:41 PM PDT     0.88 knots Max Flood
Mon -- 08:50 PM PDT     First Quarter
Mon -- 11:44 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.3-0.4-0.4-0.10.20.50.70.70.50.1-0.3-0.6-0.8-0.8-0.7-0.5-0.10.20.50.70.90.90.70.3

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 (22,6,7,8)
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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.