Marine Weather and Tides
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.
|Sunrise 6:58AM||Sunset 7:33PM||Tuesday March 28, 2017 4:25 PM PDT (23:25 UTC)||Moonrise 6:39AM||Moonset 7:30PM||Illumination 2%|
EDIT (on/off)  Help
|PZZ540 Point Arena To Point Reyes To 10 Nm- 224 Pm Pdt Tue Mar 28 2017 |
.small craft advisory in effect through late Wednesday night...
Tonight..NW winds 20 to 30 kt. Wind waves 3 to 5 ft. W swell 10 to 13 ft at 16 seconds.
Wed..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 8 to 10 ft at 16 seconds.
Wed night..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 8 to 9 ft at 15 seconds. Slight chance of showers after midnight.
Thu..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 8 to 10 ft at 14 seconds.
Thu night..NW winds 20 to 30 kt. Wind waves 4 to 6 ft. NW swell 7 to 9 ft at 14 seconds.
Fri..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 9 to 11 ft.
Sat..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 9 to 12 ft.
Sun..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. W swell 9 to 12 ft.
|PZZ500 224 Pm Pdt Tue Mar 28 2017 |
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate and gusty northwest winds will continue through the next several days as high pressure strengthens over the eastern pacific and tightens the pressure gradient along the central coast of california. Northwest swell will slowly decrease some tonight and will continue to through about Thursday morning before building again late Thursday and through the weekend.
7 Day Forecast for Marine Location Near Carmet, CAHourly EDIT Help
Area Discussion for - San Francisco/Monterey Bay Area, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 kmtr 282049|
area forecast discussion
national weather service san francisco bay area
149 pm pdt Tue mar 28 2017
Synopsis A gradual warming trend will continue through
Wednesday as high pressure builds over the region. Cooler and
breezy conditions return on Thursday as a cold front sweeps
through the region. While a few light rain showers will be
possible, most locations will remain dry. The ridge will then
rebuild back over the region late in the week resulting in another
warming trend heading into the upcoming weekend.
Discussion As of 01:48 pm pdt Tuesday... High pressure building
over the region has resulted in mostly sunny skies and an uptick
in daytime temperatures compared to yesterday. The ridge aloft
will continue to build and bring even warmer temperatures on
Wednesday with inland areas reaching into the 70s to lower 80s.
Dry weather conditions will also prevail.
By late Wednesday night, the forecast models continue to indicate
a mid/upper level trough will push into the pacific northwest. As
the trough pushes inland, a cold front will drop southward into
northern california and bring the potential for light
precipitation. While the best chances for measurable rainfall will
be to our north, cannot rule out some light rain showers across
the north bay Wednesday night into early Thursday morning. Light
precipitation in the form of showers or sprinkles may drop as far
south as the central coast just before sunrise Thursday morning.
With that said, most locations will remain dry or only see trace
amounts of rainfall from this passing system. Temperatures cool in
wake of the frontal passage with only 60s and lower 70s expected
for Thursday afternoon. Northerly winds will also increase as the
main mid/upper level low slides down into the desert southwest and
the surface pressure gradient tightens along the coast. Breezy
conditions then persist into Friday before the mid/upper level
trough pushes further to the east. May see a few degrees of
warming by Friday afternoon, yet conditions will feel cool given
the breezy northerly winds.
High pressure is forecast to rebuild back across the region late
Friday into the upcoming weekend. As a result, inland areas will
rebound back into the 70s and lower 80s with mostly sunny skies.
Medium range guidance suggest dry weather and seasonably mild
temperatures will persist into early next week as well with the|
ridge aloft. While confidence this far out remains low, the models
do hint at the potential return to a wetter pattern late next
Aviation As of 10:33 am pdt Tuesday for 18z tafs. Current vsbl
satellite imagery shows few-sct high clouds over the region.
Expect this to be the case through the day. Biggest story will be
the winds today. West/northwest winds will pick up and become
gusty in the next hour or two. Winds won't be quite as gusty today
as yesterday, but will still gust 20-25 kt, locally higher,
through roughly about 03z (8pm pdt) at most terminals. Threw in a
chance of low clouds for the monterey bay terminals for Wednesday
morning. There could be a couple of hours of stratus around
sunrise, but confidence is low at this time. Overall, moderate to
high confidence with this forecast.
Vicinity of ksfo...VFR conditions anticipated. West to northwest
winds exceeding 20 to 25 kt possible through the evening, possibly
higher at ksfo.
Sfo bridge approach... Similar to ksfo.
Monterey bay terminals...VFR through the rest of the day. Tafs
reflect MVFR CIGS around sunrise Wednesday morning, but should
lift by 16z, if CIGS develop at all. Gusty west/northwest winds by
21z (2pm pdt) this afternoon, around 20 kt, diminishing around
Marine As of 08:25 am pdt Tuesday... A long period northwest
swell... 17 to 18 seconds... Will move through the coastal waters
today. Moderate and gusty northwest winds will continue for the
next several days as a strong surface pressure gradient builds
over the region.
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... Rough bar advisory for sf bar until 3 am
sca... Mry bay until 9 pm
public forecast: rgass
visit us at
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA||15 mi||36 min||WNW 27 G 35||55°F||55°F||12 ft||1022.9 hPa||49°F|
|46214 - Point Reyes, CA (029)||36 mi||34 min||56°F||14 ft|
|46026 - SAN FRANCISCO - 18NM West of San Francisco, CA||44 mi||36 min||NNW 19 G 23||56°F||55°F||12 ft||1022.3 hPa (-1.1)|
|RCMC1 - 9414863 - Richmond, CA||47 mi||38 min||WNW 9.9 G 12|
|46237 - San Francisco Bar, CA (142)||47 mi||56 min||55°F||10 ft|
|DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA||48 mi||38 min||WNW 8.9 G 11||68°F||1020.7 hPa|
Wind History for Point Reyes, CA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Santa Rosa, Santa Rosa Sonoma County Airport, CA||17 mi||33 min||NNW 15 G 22||10.00 mi||Fair||74°F||44°F||34%||1019.7 hPa|
Wind History from STS (wind in knots)
|1 day ago||S||S||SE||S||W||W||W||Calm||W||W||N||Calm||SW||W||E||SE||SE||N|
|2 days ago||SW||SW||SW||SW||S||SE||S||SE||W||Calm||W||Calm||Calm||Calm||Calm||Calm||Calm||S||S||S||S||S||S||S |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Bodega Harbor entrance |
Click for Map
Tue -- 06:01 AM PDT 0.49 feet Low Tide
Tue -- 07:02 AM PDT Sunrise
Tue -- 07:39 AM PDT Moonrise
Tue -- 12:09 PM PDT 5.42 feet High Tide
Tue -- 06:14 PM PDT 0.53 feet Low Tide
Tue -- 07:32 PM PDT Sunset
Tue -- 08:29 PM PDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Salt Point |
Click for Map
Tue -- 12:52 AM PDT -0.00 knots Slack
Tue -- 03:42 AM PDT -1.36 knots Max Ebb
Tue -- 07:03 AM PDT Sunrise
Tue -- 07:10 AM PDT 0.00 knots Slack
Tue -- 07:40 AM PDT Moonrise
Tue -- 10:07 AM PDT 1.21 knots Max Flood
Tue -- 01:15 PM PDT -0.00 knots Slack
Tue -- 04:03 PM PDT -1.33 knots Max Ebb
Tue -- 07:29 PM PDT 0.00 knots Slack
Tue -- 07:33 PM PDT Sunset
Tue -- 08:31 PM PDT Moonset
Tue -- 10:24 PM PDT 1.16 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of CentralWestCoast EDIT
Wind Forecast for San Francisco/Monterey Bay Area, CA (19,4,5,8)(on/off)  Help
Ad by Google
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.