Thursday, September19, 2019 L-36.com


Marine Weather and Tides
Berkeley, 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 6:53AMSunset 7:12PM Thursday September 19, 2019 12:04 PM PDT (19:04 UTC) Moonrise 9:30PMMoonset 10:58AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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- 820 Am Pdt Thu Sep 19 2019
Today..W winds 5 to 15 kt.
Tonight..W winds 5 to 10 kt.
Fri..W winds 5 to 15 kt.
Fri night..SW winds 5 to 10 kt.
Sat..W winds 5 to 15 kt.
Sat night..SW winds 5 to 10 kt.
Sun..W winds 10 to 20 kt with gusts up to 25 kt.
Mon..NW winds 10 to 20 kt.
PZZ500 820 Am Pdt Thu Sep 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will increase through the day over the waters, with the strongest winds in the outer waters north of point reyes and locally south of point sur along the big sur coast. An 11 second northwest swell will be the predominate wave in the waters today, bringing the potential of hazardous conditions from squared seas to portion of the waters. A much lighter southerly swell will also be mixed in.


7 Day Forecast for Marine Location Near Berkeley, CA
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location: 37.86, -122.33     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 191734
afdmtr
area forecast discussion
national weather service san francisco bay area
1034 am pdt Thu sep 19 2019

Synopsis Seasonably cool conditions will persist on Thursday
followed by a warming trend forecast through the upcoming weekend.

A low pressure system moving southward to our east early next week
may create the potential for warming temperatures, dry offshore
flow and increased fire concerns.

Discussion As of 08:37 am pdt Thursday... Mostly clear skies
overnight allowed temperatures to drop into the mid to upper 40s
in the inland valleys, while lows along the coast were in the mid
to upper 50s. An upper trough centered to our north will continue
to track east, keeping us in a cool northwesterly flow pattern for
today. Temps at 850 mb were measured around 9c on the 12z oakland
sounding, and are forecast to warm to about 11c this afternoon.

Cool temperatures aloft will prevent a well-defined marine layer
today and will keep high temperatures seasonably cool. Highs are
expected to range from the upper 60s to lower 70s along the coast
with mid 70s to around 80 in the inland valleys. A warming trend
will begin on Friday and continue through the weekend as the
upper trough shifts east and a ridge in the eastern pacific
expands towards the west coast. Made a minor adjustment to sky
cover this morning, otherwise forecast is on track. For additional
details, see the previous discussion.

Prev discussion As of 03:00 am pdt Thursday... Seasonably cool
conditions are forecast over the region today as a mid upper
trough persists over the region. Afternoon temperatures will be
cooler at the coast today compared to yesterday, generally ranging
from the upper 60s to lower 70s while inland areas warm into the
middle 60s to upper 70s. In addition, mostly sunny conditions are
likely region-wide.

High pressure building over the eastern pacific will then begin to
build toward the west coast through the upcoming weekend. This will
result in a warming trend through the weekend with more widespread
80s across the interior by Friday and even lower 90s by Saturday
afternoon. With the lack of a marine layer and persistent onshore
flow, coastal areas will also warm into the 70s to even lower 80s
through Saturday.

Conditions trend slightly cooler on Sunday and Monday as a mid upper
level trough drops southward into the pacific northwest and
intermountain west. Mainly dry weather conditions are likely as this
system will lack sufficient moisture and the best mid upper level
support stays inland to the east of the region. With the upper level
low lingering over the desert southwest into early next week and a
ridge of high pressure building inland to our north, weak offshore
flow will potentially develop over the region. As a result, warming
temperatures and much drier conditions are likely to develop by
Tuesday and Wednesday of next week. Thus, the forecast will need to
be closely monitored in the coming days as this pattern will create
the potential for increased fire concerns.

Aviation As of 10:34 am pdt Thursday... For 18z tafs.VFR
conditions will likely prevail at most TAF sites through the
forecast period. Satellite shows some cumulus clouds beginning to
pop up in the hills surrounding the bay area that will continue
through peak heating in the afternoon and early evening. Light
winds this morning will become onshore and locally gusty this
afternoon. Dry northwest flow will continue overnight, maintaining
vfr conditions at most terminals.

Vicinity of ksfo...VFR conditions are forecast to prevail through
the period with some daytime cumulus clouds at above 3,000 ft agl.

Light winds will increase out of the west around 15-20 kt with
gusts near 25 kt. Winds will diminish after sunset.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR conditions are forecast to prevail
through the day. Could see some localized stratus try to develop
overnight along the monterey bay shoreline, but confidence of
occurrence is rather low.

Marine As of 08:20 am pdt Thursday... Northwest winds will
increase through the day over the waters, with the strongest winds
in the outer waters north of point reyes and locally south of
point sur along the big sur coast. An 11 second northwest swell
will be the predominate wave in the waters today, bringing the
potential of hazardous conditions from squared seas to portion of
the waters. A much lighter southerly swell will also be mixed in.

Mtr watches warnings advisories
Tday Sca... Mry bay from 3 pm
sca... Pt arena to pt reyes 0-10 nm from 3 pm
sca... Pigeon pt to pt pinos 0-10 nm from 3 pm
sca... Pt arena to pigeon pt 10-60 nm
sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm from 3 pm
public forecast: st rgass
aviation: rowe
marine: rowe
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OKXC1 - 9414776 - Oakland (Berth 34), CA 3 mi53 min W 2.9 G 4.1 64°F 1015 hPa
OBXC1 4 mi47 min 64°F 55°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 4 mi53 min NW 2.9 G 5.1
PPXC1 - 9414847 - Richmond (Point Potrero), CA 4 mi53 min SW 4.1 G 5.1 65°F 1015.4 hPa
PXSC1 5 mi47 min 65°F 54°F
LNDC1 5 mi53 min SW 5.1 G 6 65°F 1014.9 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 5 mi47 min NNW 1.9 G 1.9 63°F 1014.2 hPa
AAMC1 - 9414750 - Alameda, CA 6 mi53 min WSW 5.1 G 6 64°F 68°F1015.5 hPa
RCMC1 - 9414863 - Richmond, CA 6 mi47 min 64°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 7 mi48 min NNE 1.9 65°F 1016 hPa
FTPC1 - 9414290 - San Francisco, CA 8 mi53 min WNW 4.1 G 5.1 63°F 62°F1015.5 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 14 mi47 min NW 5.1 G 6 65°F 1014.9 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 16 mi53 min NW 4.1 G 6 66°F 69°F1015.1 hPa65°F
UPBC1 17 mi47 min WNW 1 G 4.1
46237 - San Francisco Bar, CA (142) 17 mi65 min 60°F4 ft
PCOC1 - 9415144 - Port Chicago, CA 21 mi53 min WNW 4.1 G 6 66°F 70°F1015.1 hPa
RTYC1 - 9414523 - Redwood City, CA 25 mi53 min N 2.9 G 7 66°F 72°F1015.6 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 27 mi53 min NW 2.9 G 7 68°F 1014.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 28 mi80 min WSW 1.9 69°F 1015 hPa53°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 28 mi35 min WNW 9.7 G 12 58°F 58°F1015.8 hPa
PRYC1 - 9415020 - Point Reyes, CA 36 mi53 min 57°F1015.3 hPa

Wind History for Oakland Middle Harbor, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA12 mi72 minWSW 510.00 miA Few Clouds68°F54°F61%1015 hPa
Concord, Buchanan Field, CA17 mi72 minN 010.00 miFair71°F50°F47%1013.4 hPa
San Francisco, San Francisco International Airport, CA17 mi69 minNE 510.00 miA Few Clouds68°F53°F59%1014.8 hPa
Hayward, Hayward Air Terminal, CA18 mi71 minWSW 510.00 miA Few Clouds67°F54°F63%1015.7 hPa
San Carlos Airport, CA23 mi2.3 hrsNNE 310.00 miA Few Clouds66°F53°F64%1015.2 hPa
Novato / Gnoss Field, CA23 mi70 minE 410.00 miFair68°F50°F53%1014.9 hPa
Napa, Napa County Airport, CA24 mi71 minN 010.00 miFair66°F52°F61%1014 hPa

Link to 5 minute data for KOAK

Wind History from OAK (wind in knots)
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Last 24hrSW4W12W14W11W14W16W15W17W13W10CalmE5NE5CalmCalmCalmCalmNE4NE3CalmCalmSW4SW5W7
1 day agoW6W7W14W13W16W19W19NW13W13W10W9W9W9W10W9W5CalmS9SE10S11S94SW7W5
2 days agoW13W17W16W17W16W13W14NW9NW5NW3CalmNW5NW3CalmN3E4SE6E4NE5CalmCalmW6W6W7

Tide / Current Tables for Berkeley, San Francisco Bay, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Berkeley Yacht Harbor, California Current
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Berkeley Yacht Harbor
Click for Map
Thu -- 01:21 AM PDT     0.28 knots Max Flood
Thu -- 05:17 AM PDT     -0.00 knots Slack
Thu -- 06:54 AM PDT     Sunrise
Thu -- 07:14 AM PDT     -0.13 knots Max Ebb
Thu -- 09:24 AM PDT     0.00 knots Slack
Thu -- 11:58 AM PDT     Moonset
Thu -- 01:22 PM PDT     0.24 knots Max Flood
Thu -- 04:48 PM PDT     -0.00 knots Slack
Thu -- 07:11 PM PDT     Sunset
Thu -- 07:36 PM PDT     -0.23 knots Max Ebb
Thu -- 10:29 PM PDT     Moonrise
Thu -- 10:34 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.30.30.20.10-0.1-0.1-0.1-000.10.20.20.20.20.1-0-0.1-0.2-0.2-0.2-0.10

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 San Francisco/Monterey Bay Area, CA (15,3,4,5)
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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.