Monday, November18, 2019 L-36.com


Marine Weather and Tides
Albany, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
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 6:50AMSunset 4:57PM Sunday November 17, 2019 10:18 PM PST (06:18 UTC) Moonrise 9:41PMMoonset 11:41AM Illumination 65% Phase: Waning Gibbous; Moon at 21 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- 840 Pm Pst Sun Nov 17 2019
Tonight..NE winds up to 10 kt.
Mon..NE winds up to 10 kt.
Mon night..W winds 5 to 15 kt.
Tue..W winds 5 to 15 kt.
Tue night..NW winds 5 to 15 kt.
Wed..N winds 15 to 25 kt with gusts up to 30 kt.
Wed night..N winds 5 to 10 kt.
Thu..NE winds up to 10 kt.
Fri..N winds up to 10 kt.
PZZ500 840 Pm Pst Sun Nov 17 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the eastern pacific will weaken through Monday allowing winds to diminish over the far northern waters tonight and Monday morning. A surface trough will move southward over the coastal waters Tuesday morning. Northwest winds will strengthen and become gusty to near gale force by late Tuesday afternoon or evening especially over the northern waters. Northwest swell and seas will build Tuesday becoming large and hazardous Tuesday night into Wednesday.


7 Day Forecast for Marine Location Near Albany, CA
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location: 37.86, -122.37     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 180552
afdmtr
area forecast discussion
national weather service san francisco bay area
952 pm pst Sun nov 17 2019

Synopsis Seasonably warm conditions will persist to start the
workweek with a slight increase in onshore flow heading into
Tuesday. Cooler conditions develop Tuesday into Wednesday as a
weather system moves through the region. Gusty north to northeast
winds are likely to develop in the north and east bay
hills mountains from late Tuesday night through early Thursday
morning that will consequently bring the potential for critical
fire weather conditions. Dry conditions, along with seasonable
temperatures, are forecast from Thursday through next weekend.

Discussion As of 9:32 pm pst Sunday... Main update this
afternoon and evening was the issuance of the fire weather watch
for the north bay mountains, east bay hills, and diablo range
beginning 4 am pst Wednesday through 7 am pst Thursday. The timing
of this watch issuance was done in collaboration with neighboring
nws sacramento. More details on fire weather can be found in the
newly inserted fire weather section of this discussion below.

High temperatures this afternoon warmed to well above normal
values as an impressive 590+ decameter high at 500 mb and its
associated ridge axis continues to influence much of the golden
state. A few daily high temperature records were broken or tied
this afternoon, including a new record of 74 degrees at san
francisco airport and a tied record of 76 degrees at oakland
airport. Temperatures will remain well above normal for one more
day before cooler, drier, and windier conditions arrive by the
middle of the week. Could see another record or two broken or tied
again tomorrow.

Aside the issuance of the fire weather watch, no additional
forecast updates are expected this evening. For more details on
the extended, please refer to the previous discussion and fire
weather sections below.

Prev discussion As of 12:54 pm pst Sunday... Temperatures region-
wide are warmer compared to this time yesterday as conditions in
the boundary layer dried out preventing any low clouds fog this
morning. At this hour, kapc (napa county airport) is running 17
degrees warmer while other locations are a few to about 10 degrees
warmer. High pressure will remain in place through a good part of
the day on Monday and result in similar conditions heading into
the start of the work week. Look for a cool start to the morning
with overnight lows in the 40s to lower 50s and afternoon
temperatures warming into the 70s and even lower 80s.

The ridge will then weaken in advance of an approaching mid upper
level trough late Monday into Tuesday. This will allow for an
increase in onshore flow ahead of an approaching frontal boundary
that will move from north to south across the region on Tuesday.

The core of the trough will shift to our south and is forecast to
develop into a closed low over southern california by Wednesday.

Overall, mainly dry conditions are likely as this system will be
moisture starved until it taps into deeper moisture well to our
south. However, we cannot rule out an isolated shower or two over
the southern portion of the central coast from late Tuesday into
early Wednesday.

The primary impact from this system will be cooler temperatures
and the development of offshore flow. Expecting daytime
temperatures to drop back into the 60s region-wide by Tuesday
afternoon with locally breezy northerly winds. By late Tuesday
night, north to northeast winds are forecast to increase over the
north and east bay hills mountains. Gusty winds combined with
lowering humidity in these areas will result in an increase in
fire weather concerns. As a result, a fire weather watch will be
issued for the aforementioned locations shortly (for early
Wednesday morning into Thursday morning). Be sure to stay up to
date with the latest information as timing location(s) may need to
be adjusted in the coming days.

Wind speeds are forecast to diminish by Thursday as the upper
level low over southern california shifts to the east.

Temperatures will remain near seasonal averages for the remainder
of the week and even into the upcoming weekend. However, dry
conditions will prevail with generally light winds.

Aviation As of 9:52 pm pst Sunday... Drier conditions prevailing
with moderate to high confidenceVFR for the overnight and Monday
at the terminals. An exception is ksts could see fog vlifr-lifr
from about midnight to mid Monday morning.

Stratus and or fog out over the coastal waters advances closer to
the coastline by late Monday afternoon and evening. Onshore winds
may set up an inland intrusion of stratus and or fog with a period
of ifr possible in the evening. Ceilings and visibilities should
gradually lift late Monday night into early Tuesday morning with a
surface trough and front passing by to the south.

Vicinity of ksfo...VFR, light wind becoming light NE Monday morning.

West wind returning late Monday afternoon and evening with stratus
and or fog possibly nearby on the ocean side of the peninsula. West
wind gusting to 20 to 25 knots in the afternoon and evening. Ifr
forecast to develop by mid to late Monday evening, ceiling lifting
to MVFR late Monday night Tuesday morning.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR, e-se winds up to 5 to 10 knots keeping
vfr going tonight. Marine layer is compressed to near sea level, if
a patch of fog develops Monday morning it should mix out quickly in
the morning. Stratus and or fog may be nearby early Monday evening.

Marine As of 8:40 pm pst Sunday... High pressure over the
eastern pacific will weaken through Monday allowing winds to
diminish over the far northern waters tonight and Monday morning.

A surface trough will move southward over the coastal waters
Tuesday morning. Northwest winds will strengthen and become gusty
to near gale force by late Tuesday afternoon or evening especially
over the northern waters. Northwest swell and seas will build
Tuesday becoming large and hazardous Tuesday night into Wednesday.

Fire weather As of 9:32 pm pst Sunday... A fire weather watch
has been issued for the north bay mountains, east bay hills, and
diablo range from 4 am pst Wednesday through 7 am pst Thursday as
another offshore wind event is on the horizon.

An upper level low will drop south from the pacific northwest
through california on late Tuesday and into Wednesday. For the san
francisco bay area, any sort of measurable precipitation
associated with this system remains very unlikely. Any rain (or
snow) chances will be mainly confined to southern california and
the sierra nevada. A consequence to this prolonged dry season is
that the fuels continue to be much drier than climatology, and by
some measures, near-record for this time of the year.

On Tuesday night, north to northeast winds will begin to develop
in the sacramento valley and begin to spread south towards the
north bay mountains and east bay hills. Will have to keep a close
eye on the onset of these winds with subsequent forecast model
runs; some models suggest the winds may arrive a bit earlier than
the present fire weather watch start time. For example, the latest
00z 3km NAM shows 925 mb winds already sustained 35-40 kt north
to northeast winds over the north bay by 06z Wednesday (10 pm pst
Tuesday). Present fire weather watch calls for surface winds in
the elevations above 1,000 ft msl in the north bay to be sustained
20 to 30 mph with gusts of 35 to 45 mph. The usual wind-prone
sites (mt st helena and mt diablo) may possibly gust at above 60
mph. Relative humidity values will likely be a bit higher compared
to earlier offshore wind events, but still forecast to be low
enough in order to trigger the fire weather watch.

Mtr watches warnings advisories
Tngt None.

Public forecast: rowe rgass
aviation marine: canepa
fire weather: rowe
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPXC1 - 9414847 - Richmond (Point Potrero), CA 3 mi48 min N 5.1 G 6 62°F 1016.4 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 4 mi48 min NW 4.1 G 4.1 57°F 1015.1 hPa
OBXC1 4 mi48 min 59°F 54°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 4 mi48 min N 1.9 G 1.9 58°F 1016.1 hPa
PXSC1 4 mi48 min 59°F 56°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 5 mi67 min Calm 58°F 1016 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 5 mi54 min NNE 1.9 G 2.9
RCMC1 - 9414863 - Richmond, CA 5 mi48 min 57°F
FTPC1 - 9414290 - San Francisco, CA 6 mi54 min SE 1.9 G 1.9 56°F 56°F1016.4 hPa
AAMC1 - 9414750 - Alameda, CA 7 mi54 min N 2.9 G 4.1 60°F 58°F1016.5 hPa
LNDC1 7 mi48 min N 1 G 1.9 61°F 1016 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 15 mi48 min SE 2.9 G 2.9 60°F 1015.9 hPa
UPBC1 18 mi48 min E 1.9 G 2.9
MZXC1 - 9415102 - Martinez-Amorco CA 18 mi48 min Calm G 1 57°F 59°F1016.4 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 26 mi28 min NW 5.8 G 7.8 56°F 55°F5 ft1016.8 hPa
RTYC1 - 9414523 - Redwood City, CA 26 mi48 min E 2.9 G 4.1 58°F 62°F1016.7 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 28 mi48 min SSW 1 G 1 57°F 1016.2 hPa
SFXC1 - San Francisco Bay Reserve, CA 30 mi93 min Calm 47°F 1016 hPa42°F
PRYC1 - 9415020 - Point Reyes, CA 34 mi48 min 55°F1015.9 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 44 mi28 min NNW 12 G 16 58°F 58°F7 ft1016.4 hPa55°F

Wind History for Point Potrero Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA14 mi25 minN 010.00 miFair57°F46°F69%1016.3 hPa
San Francisco, San Francisco International Airport, CA17 mi82 minSSW 310.00 miA Few Clouds62°F46°F56%1015.8 hPa
Concord, Buchanan Field, CA19 mi25 minN 010.00 miFair54°F44°F69%1015.1 hPa
Hayward, Hayward Air Terminal, CA19 mi24 minENE 610.00 miFair59°F43°F56%1017 hPa
Novato / Gnoss Field, CA22 mi23 minN 010.00 miFair46°F44°F93%1016.6 hPa
San Carlos Airport, CA24 mi23 minSE 310.00 miFair55°F51°F88%1016.6 hPa

Link to 5 minute data for KOAK

Wind History from OAK (wind in knots)
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Last 24hrCalmCalmCalmN3CalmCalmCalmCalmCalmCalmCalmNW43W8NW11NW10NW6NW6NW5NW7CalmN4CalmCalm
1 day agoCalmSE5SE4CalmCalmCalmSE4SW4CalmCalmS3CalmSW5SW4W7W4CalmNW6NW7NW4CalmCalmCalmCalm
2 days agoW4SW7W13W4W3NW5NE3E4CalmCalmSW4SW4W5W6NW8W12W12W16NW9NW7NW7NW5SW4Calm

Tide / Current Tables for Angel Island, East Garrison, San Francisco Bay, California
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Angel Island
Click for Map
Mon -- 05:08 AM PST     4.81 feet High Tide
Mon -- 06:53 AM PST     Sunrise
Mon -- 09:47 AM PST     3.43 feet Low Tide
Mon -- 12:27 PM PST     Moonset
Mon -- 03:23 PM PST     5.38 feet High Tide
Mon -- 04:56 PM PST     Sunset
Mon -- 10:23 PM PST     -0.21 feet Low Tide
Mon -- 10:48 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1233.94.54.84.74.33.83.53.43.644.655.35.34.83.82.51.30.3-0.2-0.1

Tide / Current Tables for Fleming Point 1.7 mi SW, San Francisco Bay, California Current
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Fleming Point 1.7 mi SW
Click for Map
Mon -- 01:26 AM PST     0.67 knots Max Flood
Mon -- 05:25 AM PST     -0.01 knots Slack
Mon -- 06:52 AM PST     Sunrise
Mon -- 07:10 AM PST     -0.20 knots Max Ebb
Mon -- 09:58 AM PST     0.00 knots Slack
Mon -- 12:27 PM PST     Moonset
Mon -- 01:14 PM PST     0.35 knots Max Flood
Mon -- 04:03 PM PST     -0.00 knots Slack
Mon -- 04:55 PM PST     Sunset
Mon -- 07:18 PM PST     -0.41 knots Max Ebb
Mon -- 10:41 PM PST     0.01 knots Slack
Mon -- 10:47 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.70.60.50.40.1-0.1-0.2-0.2-0.100.10.30.30.30.20-0.1-0.3-0.4-0.4-0.3-0.10.1

Weather Map
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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.
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Wind Forecast for San Francisco/Monterey Bay Area, CA (1,6,7,8)
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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.