Monday, May20, 2019 L-36.com


Marine Weather and Tides
Cherryland, 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 5:53AMSunset 8:16PM Monday May 20, 2019 1:42 PM PDT (20:42 UTC) Moonrise 9:21PMMoonset 6:28AM Illumination 97% Phase: Waning Gibbous; Moon at 17 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- 914 Am Pdt Mon May 20 2019
This afternoon..W winds 10 to 20 kt with gusts up to 30 kt.
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt. Showers likely.
Tue..W winds 15 to 25 kt with gusts up to 30 kt. Showers likely.
Tue night..NW winds 10 to 20 kt with gusts up to 25 kt.
Wed..W winds 5 to 15 kt.
Wed night..SW winds 5 to 10 kt.
Thu..W winds 5 to 15 kt.
Fri..SW winds 5 to 15 kt.
PZZ500 914 Am Pdt Mon May 20 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light west to northwest winds will persist over the coastal waters through tonight before increasing on Tuesday. Winds will then remain elevated through late this week. Large swells generated by the last storm system will continue to create hazardous conditions, particularly for smaller vessels. West to northwest swell will briefly decrease later today and tonight before building again Tuesday and Wednesday.


7 Day Forecast for Marine Location Near Cherryland, CA
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location: 37.67, -122.11     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 201759
afdmtr
area forecast discussion
national weather service san francisco bay area
1059 am pdt Mon may 20 2019

Synopsis Dry weather conditions are expected through much of the
day ahead of another storm system set to arrive tonight. Look for
light rain to develop late this evening over the north bay and then
across the remainder of the region overnight. Showers will linger
into Tuesday before the return of dry conditions Tuesday night into
Wednesday. Cool and unsettled conditions are likely through the
remainder of the week, yet widspread rainfall appears less likely.

Discussion As of 08:54 am pdt Monday... After a very active
Sunday weatherwise, today will be much more quiet across the bay
area. Kmux radar imagery shows all precip has ended across the bay
area this morning. Skies did clear a little overnight allowing
for a chilly start to the day. Overnight lows were in the 40s to
lower 50s. The hills on the other hand remained down right chilly
overnight and in the 30s. Rather impressive for the central coast
to be this cool (esp hills) this late in may. Given the cooling
and ample low level moisture this morning patchy fog developed
with santa rosa reporting 1 2 mile. Patchy fog will lingering
through mid-late morning.

For the rest of the day - cool temperatures with fair weather
cumulus clouds across the region. No update is needed to the
near term forecast as it is currently on track.

Precip will return this evening and overnight as a weak cold front
approaches from the north.

Prev discussion As of 02:55 am pdt Monday... Isolated showers linger
off of the central coast early this morning as the core of a cold
mid upper level low shifts eastward away from the region.

Expecting a drying trend to continue region-wide through much of
the day with temperatures warming only into the 60s for most
locations this afternoon. A mix of Sun and clouds can also be
expected through the afternoon ahead of the next approaching
weather system.

Another mid upper level storm system is forecast to push inland over
the pacific northwest today with the tail end of a frontal boundary
dropping across the san francisco bay area late this evening and
through the central coast tonight. Light rain will first develop
over the north bay this evening before spreading southward inland
during the overnight hours. Rainfall will generally range from a few
hundredths of an inch to around one-quarter inch through the night.

In wake of the frontal passage, lingering showers will persist into
Tuesday as the core of the mid upper level trough drops southward
over the west coast. The post frontal showers will be mostly
isolated to scattered in nature with the potential for brief
moderate to locally heavy rainfall. Overall, this system will be
weaker and produce less rainfall than the system that moved across
the region this past weekend.

Drier weather is forecast to develop Wednesday and likely to persist
into late week. However, a broad upper trough remains over the
western portion of the country keeping temperatures below seasonal
averages. The best chance for precipitation looks to stay over the
interior portion of the state. Chances for precipitation may return
late in the week and into the upcoming weekend as weak disturbances
round the base of the retrograding trough. Thus, look for cool and
unsettled conditions to persist through the end of the month.

Aviation As of 10:59 am pdt Monday... For 18z tafs. Forecast
has fallen apart this morning. Steep lapse rates and left over
boundary layer rh has allowed widespread strato cumulus clouds to
form across the entire region (hills bays and valleys).

Complicating matters is high clouds from next incoming system are
already starting to stream into the north bay. Some concern that
sct-bkn CIGS could linger all or much of the afternoon. Next
system quickly arrives this evening with light rain spreading
north to south but mainly during the overnight hours. Tuesday
morning likely starts out ifr with lingering showers then more
showers redevelop through the day with brisk wnw winds.

Vicinity of ksfo... Sct-bkn cloud deck at 2500 looks to persist all
or much of the afternoon. Low confidence on clearing given latest
trends and high clouds from incoming system already starting to
arrive. Light rain should develop after 06z tonight. Gusty west
winds 15 kt this afternoon and evening gusts to 25 kt.

Sfo bridge approach... Sct-bkn 025 to linger over the approach much
of the afternoon with perhaps some partial clearing early evening
ahead of the next front.

Monterey bay terminals... Onshore winds will keep most of the cigs
over the higher terrain today with few-sct for the terminals.

Light rain showers develop after 07z with next front tonight.

Marine As of 10:48 am pdt Monday... Generally light west to
northwest winds will persist over the coastal waters through
tonight before increasing on Tuesday. Winds will then remain
elevated through late this week. Large swells generated by the
last storm system will continue to create hazardous conditions,
particularly for smaller vessels. West to northwest swell will
briefly decrease later today and tonight before building again
Tuesday and Wednesday.

Mtr watches warnings advisories
Tday 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... Rough bar advisory for sf bar until 4 pm
sca... Mry bay from 1 pm
public forecast: mm
aviation: rww
marine: rww
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 12 mi42 min W 11 G 14 58°F 63°F1017 hPa (+0.9)
AAMC1 - 9414750 - Alameda, CA 12 mi48 min W 8.9 G 11 58°F 61°F1016.6 hPa
LNDC1 13 mi42 min W 8 G 12 59°F 1016.1 hPa (+0.7)
OBXC1 15 mi42 min 57°F 51°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 15 mi42 min WNW 13 G 16 57°F 1016.1 hPa (+0.7)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 15 mi42 min W 11 G 15
PXOC1 - 9414311 - San Francisco (Pier 1), CA 17 mi42 min W 13 G 18 58°F 1015.3 hPa (+0.9)
PXSC1 18 mi42 min 59°F 50°F
FTPC1 - 9414290 - San Francisco, CA 21 mi48 min W 8 G 14 57°F 58°F1016.6 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 21 mi42 min SSW 8.9 G 13 59°F 1016.3 hPa (+0.6)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 24 mi67 min NNW 4.1 58°F 1016 hPa
RCMC1 - 9414863 - Richmond, CA 24 mi42 min 60°F
UPBC1 25 mi42 min WNW 11 G 17
MZXC1 - 9415102 - Martinez-Amorco CA 25 mi42 min WNW 14 G 17 59°F 63°F1015.5 hPa (+0.4)57°F
PCOC1 - 9415144 - Port Chicago, CA 27 mi42 min W 14 G 16 60°F 62°F1015.6 hPa (+0.5)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 28 mi42 min NW 12 G 15 61°F 1015.1 hPa (+0.3)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 28 mi42 min WSW 6 G 8 59°F 1015.5 hPa (+0.3)
46237 - San Francisco Bar, CA (142) 29 mi42 min 59°F9 ft
SFXC1 - San Francisco Bay Reserve, CA 37 mi57 min WNW 8.9 62°F 1016 hPa51°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 39 mi32 min W 9.7 G 14 55°F 57°F1017.3 hPa

Wind History for Alameda, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hayward, Hayward Air Terminal, CA1 mi48 minW 1110.00 miMostly Cloudy61°F48°F65%1017.5 hPa
Oakland, Metro Oakland International Airport, CA6 mi49 minWSW 1110.00 miMostly Cloudy62°F48°F62%1016.6 hPa
San Carlos Airport, CA12 mi54 minW 910.00 miOvercast59°F48°F68%1016.9 hPa
Palo Alto Airport, CA13 mi55 minNW 1310.00 miMostly Cloudy61°F48°F63%1016.3 hPa
San Francisco, San Francisco International Airport, CA14 mi46 minWSW 1210.00 miMostly Cloudy61°F48°F63%1016.4 hPa
Livermore, Livermore Municipal Airport, CA16 mi49 minW 1110.00 miMostly Cloudy62°F48°F60%1015.4 hPa
Mountain View, Moffett Field, CA17 mi46 minN 1010.00 miMostly Cloudy63°F51°F65%1016.6 hPa
Concord, Buchanan Field, CA22 mi49 minW 910.00 miMostly Cloudy66°F46°F49%1014 hPa
San Jose, San Jose International Airport, CA23 mi49 minNW 910.00 miMostly Cloudy63°F52°F68%1016 hPa
Half Moon Bay Airport, CA23 mi47 minWNW 109.00 miMostly Cloudy57°F51°F82%1017.3 hPa

Wind History from HWD (wind in knots)
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Last 24hrSW11W10W8W9W8W7W6W5SW3W4S3S3NE4CalmNE5NE5NE5NE3CalmNW3W5W6W10W11
1 day agoE9SE12S10
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W12W14W15W12W8W10W9NW3W3W4W3E4CalmE3SE5SE6SE6S8SE7S54CalmSE7

Tide / Current Tables for Roberts Landing, 1.3 miles west of, San Francisco Bay, California
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Roberts Landing
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Mon -- 01:28 AM PDT     7.56 feet High Tide
Mon -- 05:55 AM PDT     Sunrise
Mon -- 07:28 AM PDT     Moonset
Mon -- 08:47 AM PDT     -1.10 feet Low Tide
Mon -- 03:26 PM PDT     6.05 feet High Tide
Mon -- 08:15 PM PDT     Sunset
Mon -- 08:38 PM PDT     2.60 feet Low Tide
Mon -- 10:20 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.67.47.56.75.43.51.60-0.9-1.1-0.40.82.43.95.265.95.34.33.32.72.73.34.4

Tide / Current Tables for Oakland Airport SW, South San Francisco Bay, California Current
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Oakland Airport SW
Click for Map
Mon -- 01:21 AM PDT     -0.00 knots Slack
Mon -- 04:29 AM PDT     -1.05 knots Max Ebb
Mon -- 05:55 AM PDT     Sunrise
Mon -- 07:28 AM PDT     Moonset
Mon -- 08:14 AM PDT     0.00 knots Slack
Mon -- 11:33 AM PDT     0.82 knots Max Flood
Mon -- 03:00 PM PDT     -0.00 knots Slack
Mon -- 05:05 PM PDT     -0.50 knots Max Ebb
Mon -- 08:09 PM PDT     0.00 knots Slack
Mon -- 08:15 PM PDT     Sunset
Mon -- 10:20 PM PDT     Moonrise
Mon -- 11:10 PM PDT     0.53 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.1-0.3-0.7-1-1-0.8-0.5-0.10.30.60.80.80.70.40-0.4-0.5-0.4-0.3-00.20.40.5

Weather Map and Satellite Images
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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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Wind Forecast for San Francisco/Monterey Bay Area, CA (16,3,4,5)
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Ground Weather Radar Station San Francisco Bay Area, 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.