Thursday, June22, 2017 L-36.com


Marine Weather and Tides
Discovery Bay, CA

Version 3.4
What's New / NOTES
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 5:43AMSunset 8:32PM Thursday June 22, 2017 5:00 PM PDT (00:00 UTC) Moonrise 3:38AMMoonset 6:05PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 237 Pm Pdt Thu Jun 22 2017
.small craft advisory in effect until 9 pm pdt this evening...
Tonight..SW winds 10 to 20 kt.
Fri..SW winds 10 to 20 kt.
Fri night..SW winds 10 to 20 kt. Patchy fog after midnight.
Sat..SW winds 15 to 25 kt. Patchy fog in the morning.
Sat night..SW winds 15 to 25 kt.
Sun..SW winds 10 to 20 kt.
Mon..SW winds 5 to 15 kt.
Tue..SW winds 5 to 15 kt.
PZZ500 237 Pm Pdt Thu Jun 22 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... As surface high pressure lifts northward, winds will continue to be light and southerly this evening and through Friday. In addition, seas will subside through the remainder of the week and into the weekend. Winds are expected to be moderate to strong during the afternoon and early evening hours around the golden gate and angel island areas over the next few days.

7 Day Forecast for Marine Location Near Discovery Bay, CA
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location: 37.89, -121.49     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 222242
afdsto
area forecast discussion
national weather service sacramento ca
342 pm pdt Thu jun 22 2017

Synopsis
Extended heat wave with widespread highs over 100 degrees and
warm nights through the end of the week. Isolated afternoon
thunderstorms possible over the mountains. Not as hot next week.

Discussion
Current temperatures ranging 104 to 108 in the valley at 3 pm and
those numbers will climb higher in the next several hours. Yesterday's
peak heat occurred near 5 to 6 pm. Will have to monitor record
highs for several locations. For example, modesto is currently at
105 degrees and their record is 106 (1954). Downtown sacramento is
at 105 and the record is 107 (1981). Redding is at 106 and the
record is 107 (2006).

Northerly winds have picked up this afternoon with strongest
winds over the north and west side of the valley. The high heat,
low relative humidity and increased winds will continue high fire
danger as the red flag warning continues.

Thunderstorm chances likely to be limited to the sierra south of
lake tahoe over the next few days.

Hot weather continues across the northern half of the sacramento
valley and in the mountains late this week while cooler weather
gradually returns to the delta and southern sacramento valley as
the delta breeze returns.

.Extended discussion (Monday through Thursday)
temperatures continue to cool Monday and Tuesday as an upper
level shortwave trough pushes the ridge axis east. Upper flow will
be mostly zonal over the area, so high temperatures will still
mostly remain a few degrees above normal through midweek. However,
low temperatures will finally fall to normal by Monday night due
to southerly winds and breezy delta winds which will finally allow
overnight relief from the heat in most areas. Dry weather
expected for interior norcal beginning Monday as the airmass
stables.

-hec

Aviation
Vfr conditions expected at the TAF sites the next 24 hours.

Isolated thunderstorms possible over the northern sierra crest in
the afternoon. Northerly winds 15 to 30 kt northern sacramento
valley and coast range through 6z Friday. Southwest winds 15 to 25
kt through the delta... Otherwise winds generally below 15 kt.

Sto watches warnings advisories
Heat advisory until 11 pm pdt Saturday for clear lake southern
lake county-motherlode-mountains southwestern shasta county to
northern lake county-northeast foothills sacramento valley-
shasta lake area northern shasta county-west slope northern
sierra nevada-western plumas county lassen park.

Red flag warning until noon pdt Friday for 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 sacramento valley to southern tehama county line 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
sacramento valley in yolo-sacramento far western placer,
southern sutter and solano county below 1000 ft.

Excessive heat warning until 11 pm pdt Friday for carquinez
strait and delta-central 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
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 23 mi60 min NW 12 G 15 89°F 1004.8 hPa (-0.9)
PCOC1 - 9415144 - Port Chicago, CA 31 mi60 min W 12 G 15 87°F 73°F1005.2 hPa (-0.8)
MZXC1 - 9415102 - Martinez-Amorco CA 35 mi60 min WNW 14 G 16 87°F 72°F1005.8 hPa (-0.7)58°F
UPBC1 35 mi60 min WNW 14 G 17
SFXC1 - San Francisco Bay Reserve, CA 36 mi75 min WNW 9.9 97°F 1005 hPa61°F
LNDC1 42 mi60 min N 6 G 8.9 71°F 1007.4 hPa (+0.0)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 43 mi60 min WSW 13 G 17 77°F 1006 hPa (-0.5)
AAMC1 - 9414750 - Alameda, CA 44 mi60 min WNW 8 G 12 70°F 65°F1007.9 hPa (+0.0)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 45 mi60 min W 9.9 G 13
OBXC1 45 mi60 min 65°F 57°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 45 mi60 min NW 11 G 14 64°F 1007.5 hPa (+0.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 46 mi60 min SSW 9.9 G 14 69°F 1007.9 hPa (+0.0)
RTYC1 - 9414523 - Redwood City, CA 47 mi60 min N 14 G 17 73°F 75°F1006 hPa (-0.3)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 48 mi60 min WSW 9.9 G 17 66°F 1006.5 hPa (+0.0)
PXSC1 48 mi60 min 67°F 55°F
RCMC1 - 9414863 - Richmond, CA 49 mi60 min SE 2.9 G 7 71°F 62°F1007.2 hPa (+0.0)

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA13 mi65 minNW 9 G 1510.00 miFair107°F61°F22%1004.3 hPa
Livermore, Livermore Municipal Airport, CA22 mi67 minW 1110.00 miFair104°F55°F20%1004.8 hPa

Wind History from SCK (wind in knots)
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Last 24hrNW7NW10W11NW8W9W10W5CalmE4N8CalmW6W3W4W6NW7W6W6W7W8W7W9NW7NW9
G15
1 day agoNW10NW14W10W13W9W9NW8NW8W8NW4W9NW5NW5N6NW5NW4W10W7W8NW5W7--NW7NW8
2 days agoNW10NW14W11W10W9W6W12NW7NE4N7N5SW6NW6NE3N4NE4CalmCalmNW64W9W8NW8W7

Tide / Current Tables for Borden Highway Bridge, Middle River, San Joaquin River, California
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Borden Highway Bridge
Click for Map
Thu -- 04:38 AM PDT     Moonrise
Thu -- 05:10 AM PDT     3.81 feet High Tide
Thu -- 05:44 AM PDT     Sunrise
Thu -- 12:58 PM PDT     -0.32 feet Low Tide
Thu -- 07:01 PM PDT     2.64 feet High Tide
Thu -- 07:04 PM PDT     Moonset
Thu -- 08:31 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.42.12.93.63.83.73.22.51.70.90.3-0.2-0.3-0.10.51.222.52.62.521.51.1

Tide / Current Tables for Brandt Bridge, San Joaquin River, California Current
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Brandt Bridge
Click for Map
Thu -- 01:10 AM PDT     0.00 knots Slack
Thu -- 03:59 AM PDT     0.85 knots Max Flood
Thu -- 04:37 AM PDT     Moonrise
Thu -- 05:43 AM PDT     Sunrise
Thu -- 06:41 AM PDT     -0.00 knots Slack
Thu -- 10:44 AM PDT     -1.33 knots Max Ebb
Thu -- 03:11 PM PDT     0.00 knots Slack
Thu -- 05:56 PM PDT     0.57 knots Max Flood
Thu -- 07:04 PM PDT     Moonset
Thu -- 08:28 PM PDT     -0.00 knots Slack
Thu -- 08:31 PM PDT     Sunset
Thu -- 11:17 PM PDT     -0.54 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.10.30.70.80.70.3-0.2-0.7-1.1-1.3-1.3-1.2-1-0.6-0.10.30.50.60.50.2-0.2-0.4-0.5

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 (20,4,5,8)
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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.