Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Oakley, CA

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:52AMSunset 7:07PM Saturday September 21, 2019 10:27 AM PDT (17:27 UTC) Moonrise 10:54PMMoonset 12:58PM Illumination 49% Phase: Third Quarter Moon; Moon at 22 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- 810 Am Pdt Sat Sep 21 2019
Today..SW winds 5 to 15 kt.
Tonight..SW winds 5 to 10 kt.
Sun..SW winds 5 to 15 kt.
Sun night..W winds 10 to 15 kt.
Mon..W winds 5 to 15 kt.
Mon night..NW winds 5 to 10 kt.
Tue..W winds 5 to 15 kt.
Wed..W winds 5 to 15 kt.
PZZ500 810 Am Pdt Sat Sep 21 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light to locally breezy northwest winds across the waters through this weekend. Strongest winds will in the outer waters north of point reyes where hazardous squared seas are also possible. Winds will increase again by Monday as another low pressure trough drops into the great basin. A 9 to 10 second northwest swell will be mixed with a long-period southerly swell.


7 Day Forecast for Marine Location Near Oakley, CA
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location: 38.02, -121.69     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 211120
afdsto
area forecast discussion
national weather service sacramento ca
420 am pdt Sat sep 21 2019

Synopsis
Dry and mild weather through the weekend. A few showers possible
over the mountains Sunday. Breezy north winds possible early next
week leading to elevated fire weather concerns. Above normal
temperatures are likely Tuesday and Wednesday while a significant
cool down and increasing precipitation chances return late in the
week.

Discussion
Most valley locations continue to experience light to locally
modest northerly flow while foothill and mountain locales are
seeing diurnally driven downsloping flow, both of which have
contributed to keeping humidities lower than usual. With a
positively-tilted trough juxtaposed over the intermountain west,
deep-layered northerly flow persists across the state. Thus, one
more day of this flow regime is expected, albeit with wind speeds
likely to remain around 15 knots or below. Warm temperatures will
prevail today as a progressive ridge moves through. This supports
valley highs into the upper 80s, very close to climatology.

For Sunday and into early next week, amplified flow descending
from the northeast pacific will cool temperatures off by a few
degrees. Forcing from the shortwave pushes through shasta county
late Sunday afternoon spreading light showers over the higher
terrain. Eventually this activity swings into the southern
cascades and far northern sierra, with perhaps a couple rumbles
of thunder during the evening hours. Given sparse moisture,
overall rainfall amounts should stay around 0.10 inches and below.

As this trough forms a closed low along the california nevada
border early Monday, strengthening northerly flow ensues with
notable drops in daytime overnight relative humidities. The
combination of the these factors in conjunction with curing fuels
supports an elevated wildfire risk. As such, a fire weather watch
will be in effect from Monday afternoon into Tuesday evening. This
covers sections of the sacramento valley into the adjacent
foothills as well as the northern coastal range. In addition to
the wildfire threat, valley highs will punch into the mid 90s on
Tuesday as 850-mb temperatures rise into the 22-25c range.

Relative to typical numbers, these high temperatures sit 6 to 10
degrees above average. ~bro

Extended discussion (Wednesday through Saturday)
With the parent upper low settling into northwestern mexico by
early Wednesday, broad ridging will hold on another day affording
a warm day across the region. Valley high temperatures should
reside in the low to mid 90s which includes a rather warm start to
the day as well. Some foothills locations will see morning lows
near 70 degrees which is 10 to 15 degrees above climatology. Based
on the latest model guidance, this should mark an end to the
brief round of heat as a pattern change looms.

A well advertised western u.S. Trough sets up during the Thursday
through Sunday (sep 26-29) timeframe. Ensemble means even show the
potential for this negative height anomaly to linger into the
following week. Ultimately this shift in the pattern will support
a significant cool down, particularly by Friday into next
weekend. Based on the latest forecast package, upper 60s to low
70s would be high temperatures across the valley with surprisingly
not too much spread in the 00z GEFS ensemble members. Forecast
highs would be around 10 to 20 degrees below average across
interior northern california, especially over the foothills and
mountains given precipitation. It appears there will be daily
chances for precipitation beginning Friday with snow levels
falling to the 6,000 to 7,500 foot range. Details will likely
change but there is building confidence in the colder, unsettled
pattern to finish out the month. ~bro

Aviation
Vfr conditions next 24 hrs. Sfc winds less than 12 kts at taf
sites, except for local gusts up to 20 kts northern terminals
16z-22z sat.

Sto watches warnings advisories
Fire weather watch from Monday afternoon through Tuesday evening
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.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 11 mi57 min ESE 2.9 G 2.9 70°F 1015 hPa
PCOC1 - 9415144 - Port Chicago, CA 19 mi57 min ENE 4.1 G 4.1 69°F 70°F1015.2 hPa
SFXC1 - San Francisco Bay Reserve, CA 22 mi102 min S 2.9 67°F 1015 hPa58°F
UPBC1 23 mi57 min NW 2.9 G 2.9
MZXC1 - 9415102 - Martinez-Amorco CA 23 mi57 min W 4.1 G 4.1 67°F 70°F1015.2 hPa62°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 31 mi57 min WSW 1.9 G 1.9 68°F 1014.9 hPa
LNDC1 35 mi57 min Calm G 0 69°F 1015 hPa
AAMC1 - 9414750 - Alameda, CA 37 mi63 min ESE 1.9 G 2.9 68°F 69°F1015.6 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 37 mi57 min NNW 1 G 1.9
OKXC1 - 9414776 - Oakland (Berth 34), CA 37 mi57 min Calm G 2.9 67°F 1015 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 37 mi57 min S 1 G 1.9 68°F 1015.5 hPa
OBXC1 38 mi57 min 66°F 59°F
RCMC1 - 9414863 - Richmond, CA 39 mi57 min 65°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 40 mi57 min E 7 G 8 65°F 1013.8 hPa
PXSC1 40 mi57 min 66°F 61°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 41 mi94 min Calm 67°F 1015 hPa (+1.0)
FTPC1 - 9414290 - San Francisco, CA 44 mi63 min NNE 1 G 1.9 64°F 62°F1015.3 hPa
RTYC1 - 9414523 - Redwood City, CA 45 mi57 min ESE 2.9 G 2.9 68°F 72°F1015.7 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA19 mi34 minN 010.00 miFair75°F48°F39%1013.7 hPa
Fairfield / Travis Air Force Base, CA22 mi89 minN 010.00 miFair73°F49°F43%1015.5 hPa
Livermore, Livermore Municipal Airport, CA23 mi34 minN 010.00 miFair73°F50°F44%1014.7 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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Last 24hr4NE43--6N6N5NE4W11W12SW3SE3CalmSE4S4S4S5S4S3S5SE4S5CalmCalm
1 day agoCalm4E3NW7CalmNE7NW5NW7W10NW6SE3CalmSE3S4S5S4CalmS3S4CalmS4SE3S5Calm
2 days agoS106W10
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Tide / Current Tables for False River, San Joaquin River, California
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False River
Click for Map
Sat -- 04:56 AM PDT     0.41 feet Low Tide
Sat -- 06:53 AM PDT     Sunrise
Sat -- 11:44 AM PDT     2.18 feet High Tide
Sat -- 01:58 PM PDT     Moonset
Sat -- 04:10 PM PDT     1.23 feet Low Tide
Sat -- 07:05 PM PDT     Sunset
Sat -- 07:43 PM PDT     Last Quarter
Sat -- 09:56 PM PDT     3.18 feet High Tide
Sat -- 11:54 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.21.61.10.70.50.40.50.81.21.61.92.12.221.71.41.21.31.62.12.633.23

Tide / Current Tables for West Island Lt .5 mi SE, San Joaquin River, California Current
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West Island Lt .5 mi SE
Click for Map
Sat -- 01:29 AM PDT     -0.83 knots Max Ebb
Sat -- 06:10 AM PDT     0.00 knots Slack
Sat -- 06:53 AM PDT     Sunrise
Sat -- 09:10 AM PDT     0.27 knots Max Flood
Sat -- 12:26 PM PDT     -0.00 knots Slack
Sat -- 01:58 PM PDT     Moonset
Sat -- 02:45 PM PDT     -0.28 knots Max Ebb
Sat -- 05:19 PM PDT     0.00 knots Slack
Sat -- 07:05 PM PDT     Sunset
Sat -- 07:43 PM PDT     Last Quarter
Sat -- 08:20 PM PDT     0.40 knots Max Flood
Sat -- 10:56 PM PDT     -0.00 knots Slack
Sat -- 11:54 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-0.8-0.8-0.7-0.5-0.3-00.10.20.30.30.20.1-0.1-0.3-0.3-0.2-0.10.10.30.40.40.2-0

Weather Map
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wmap_P
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (13,3,4,5)
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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.