Wednesday, February20, 2019 L-36.com


Marine Weather and Tides
Rutherford, 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 6:51AMSunset 5:53PM Wednesday February 20, 2019 12:57 AM PST (08:57 UTC) Moonrise 7:28PMMoonset 7:52AM Illumination 99% 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 San Francisco Bay North Of The Bay Bridge- 842 Pm Pst Tue Feb 19 2019
.small craft advisory in effect from 3 am pst Wednesday through Wednesday evening...
Tonight..W winds 10 kt...increasing to 10 to 20 kt after midnight.
Wed..NW winds 15 to 25 kt. Chance of showers in the afternoon.
Wed night..NW winds 15 to 25 kt...decreasing to 5 to 15 kt after midnight. Chance of showers in the evening.
Thu..N winds 10 to 20 kt.
Thu night..N winds 10 to 20 kt.
Fri..W winds 5 to 15 kt.
Sat..W winds 10 kt. Slight chance of showers.
Sun..W winds 10 kt. Chance of showers, then slight chance of showers.
PZZ500 842 Pm Pst Tue Feb 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A low pressure system will drop into the pacific northwest tonight and Wednesday resulting in ncreasing notherly winds. The winds will remain gusty through Thursday as the low moves into the great basin. This will generate a large northwest swell through Thursday night.


7 Day Forecast for Marine Location Near Rutherford, CA
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location: 38.5, -122.39     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 200517
afdmtr
area forecast discussion
national weather service san francisco bay area
917 pm pst Tue feb 19 2019

Synopsis After a few days of dry weather, isolated to
scattered mainly light rain snow showers are forecast to return
to the area by Wednesday and persist into early Thursday morning.

Snowfall will be likely limited to the highest elevations,
especially across the diablo range and the santa lucia mountains.

Dry conditions return on Thursday and continue into at least
Friday before rain chances return to northern california during
the weekend.

Discussion As of 9:17 pm pst Tuesday... Even with very chilly
morning low temperatures, plenty of sunshine today allowed
afternoon temperatures to warm several degrees over yesterday's at
most locations. After morning minimums ranging from the 20s to
the lower 40s, today's highs generally ranged from the 40s in the
higher elevations, to the upper 50s elsewhere. The warmest
locations, santa cruz and healdsburg, reached 61 degrees.

Overnight lows tonight are not expected to be not quite as chilly
as the previous two as high clouds are moving over northern
california ahead of the next weather system expected to affect the
area tomorrow and early Thursday. Lows are forecast to generally
range from the lower 30s to mid 40s.

Meanwhile, an upper level trough is currently digging southward
from western canada and is forecast to bring precipitation to
northern california later tonight, reaching coastal areas of our
cwa by around sunrise. The best chances of precip will occur
during the day Wednesday when the upper low swings in to the great
basin. Showers to taper off early Thursday when the trough heads
into arizona. The trajectory of this system will limit the amount
of moisture available to work with, thus, rainfall totals are
expected to be meager. Highest amounts are forecast to be in big
sur, which could see up to an inch of precipitation. Rainfall
totals drop way off from there with most inland valley areas only
getting a few hundredths. Snow levels are progged to lower to
2,500-3,000 feet, but this will likely occur after the trough has
moved well inland. Thus, only the highest peaks across the
southern third of the CWA are expected to receive more than a
dusting.

Dry weather is then forecast for Friday and Saturday before
another trough approaches from the northwest on Sunday.

Previous discussion As of 02:03 pm pst Tuesday... Weather
conditions today are very similar to those yesterday with
temperatures generally in the 50s. While sky conditions are mainly
clear over our region, an increase in cloud cover can be seen
offshore and to our north ahead of our next approaching storm
system. Temperatures will be cold once again tonight, yet should
be a few degrees warmer that previous days given the increase in
cloud cover and moisture.

The latest thinking is that light rain showers will develop during
the overnight hours near the coast and locally inland over east bay
hills and central coast. The main mid upper level system forecast to
drop southward out of the pacific northwest and into
california nevada will result in an increase in shower activity on
Wednesday during the day. Snow levels are forecast to lower to
between 2,500-3,000 feet a reinforcing shot of colder aid advects
southward across the region. This will likely result in additional
snowfall in the region's highest peaks, especially over the diablo
range, sierra de salinas and santa lucia mountains through early
Thursday morning. Meanwhile, convective showers will impact lower
elevations with the potential for brief moderate rainfall and small
hail given the cold air mass aloft. Overall, rainfall amounts will
be on the order of a few hundredths to a few tenths of an inch
across the san francisco bay area with locally higher amounts within
heavier showers over the central coast.

Showers will tapper off by Thursday morning as drier northwest flow
returns in wake of the exiting system. Dry weather conditions will
then develop region-wide by Thursday night and persist into Friday
as a weak shortwave ridge develops aloft. The upcoming weekend looks
to start off dry before another mid upper level trough develops over
the pacific northwest. This will bring increased chances for
precipitation over northern california and potentially down into the
northern portions of our region. The storm door appears to remain
open with a cool pattern in place, yet confidence in the details
remain low at this time given model-to-model and run-to-run
inconsistencies. With all this said, a widespread heavy rainfall
event does not appear likely within the next 7-10 days.

Aviation As of 4:10 pm pst Tuesday... Satellite image shows low
clouds offshore that are moving south for the moment. Dry
northerly flow will keepVFR conditions through the night but as
an upper level system drops down from the pacific northwest clouds
will increase on Tuesday. Moisture is limited so there is only a
slight chance of showers. We expect CIGS to remain in theVFR
range but cannot rule out brief periods of MVFR associated with a
heavy shower or from the clouds offshore. This system is an
upper-level system with no surface feature so winds will remain
west to northwest.

Vicinity of ksfo...VFR through tonight. Increasing clouds Tuesday
after 15z with CIGS down to 3500-4500 ft. West winds increasing to
15 kt gusting to 20 kt after 09z. Winds increasing to 20 kt with
gusts 25-30 kt after 16z.

Sfo bridge approach... Similar to sfo.

Monterey bay terminals... .Vfr conditions through this evening.

Increasing clouds around the bay after 10z with CIGS down to
3500-4500 ft. Scattered showers around southern mry bay after 16z
with winds increasing to 15 kt gusting 20-25 kt.

Marine As of 8:42 pm pst Tuesday... A low pressure system will
drop into the pacific northwest tonight and Wednesday resulting in
increasing northerly winds. The winds will remain gusty through
Thursday as the low moves into the great basin. This will generate
a large northwest swell through Thursday night.

Mtr watches warnings advisories
Tngt Sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Pigeon pt to pt pinos 0-10 nm
sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Pt arena to pigeon pt 10-60 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm
sca... Sf bay from 3 am
sca... Mry bay from 3 am
public forecast: sims
aviation: W pi
marine: W pi
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 28 mi72 min SW 7 46°F 1018 hPa40°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 31 mi39 min W 8 G 12 49°F 1017.8 hPa
UPBC1 35 mi39 min WSW 8.9 G 12
MZXC1 - 9415102 - Martinez-Amorco CA 35 mi39 min SSW 7 G 8.9
PCOC1 - 9415144 - Port Chicago, CA 36 mi39 min SW 8 G 9.9 45°F 49°F1018 hPa
RCMC1 - 9414863 - Richmond, CA 40 mi39 min 52°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 41 mi39 min WSW 4.1 G 6 49°F 1017.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 41 mi39 min WNW 9.9 G 13 50°F 1018.6 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 42 mi46 min WNW 2.9 48°F 1019 hPa
PRYC1 - 9415020 - Point Reyes, CA 47 mi39 min 53°F1019.2 hPa
OBXC1 48 mi39 min 50°F 42°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 48 mi39 min NNW 8 G 9.9 49°F 1018.6 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 48 mi39 min W 2.9 G 5.1
FTPC1 - 9414290 - San Francisco, CA 48 mi45 min WNW 7 G 12 49°F 54°F1018.8 hPa
PXSC1 48 mi45 min 50°F 41°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 49 mi39 min WSW 5.1 G 9.9 49°F 1017.5 hPa
LNDC1 49 mi39 min W 1.9 G 2.9 50°F 1018.5 hPa

Wind History for Union Pacific Rail Road Bridge (UPRR), CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Petaluma Municipal Airport, CA20 mi62 minWNW 610.00 miFair41°F41°F100%1018.3 hPa
Napa, Napa County Airport, CA21 mi63 minSW 1010.00 miFair43°F39°F89%1017 hPa
Santa Rosa, Santa Rosa Sonoma County Airport, CA22 mi64 minWSW 310.00 miMostly Cloudy43°F37°F80%1017.3 hPa
Vacaville Nut Tree Airport, CA24 mi64 minSSW 910.00 miFair47°F41°F80%1017.5 hPa

Wind History from O69 (wind in knots)
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Tide / Current Tables for Napa, Napa River, Carquinez Strait, California
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Napa
Click for Map
Wed -- 02:37 AM PST     7.08 feet High Tide
Wed -- 06:53 AM PST     Sunrise
Wed -- 07:50 AM PST     Moonset
Wed -- 08:21 AM PST     1.60 feet Low Tide
Wed -- 01:59 PM PST     8.15 feet High Tide
Wed -- 05:52 PM PST     Sunset
Wed -- 07:27 PM PST     Moonrise
Wed -- 08:58 PM PST     -0.85 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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45.76.976.353.52.31.71.82.94.56.27.68.17.76.54.72.60.7-0.5-0.8-0.31.1

Tide / Current Tables for Wingo, Sonoma Creek, San Pablo Bay, California
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Wingo
Click for Map
Wed -- 02:33 AM PST     5.78 feet High Tide
Wed -- 06:53 AM PST     Sunrise
Wed -- 07:51 AM PST     Moonset
Wed -- 08:40 AM PST     1.30 feet Low Tide
Wed -- 01:55 PM PST     6.85 feet High Tide
Wed -- 05:53 PM PST     Sunset
Wed -- 07:28 PM PST     Moonrise
Wed -- 09:17 PM PST     -1.15 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.94.55.65.75.24.23.121.41.42.13.55.16.46.86.55.43.92.20.6-0.6-1.1-0.90.3

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 San Francisco/Monterey Bay Area, CA (3,6,7,8)
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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.