Saturday, March23, 2019 L-36.com


Marine Weather and Tides
San Francisco, 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 7:07AMSunset 7:25PM Saturday March 23, 2019 9:42 AM PDT (16:42 UTC) Moonrise 9:44PMMoonset 8:05AM Illumination 92% 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
    EDIT      (on/off)   Help
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 840 Am Pdt Sat Mar 23 2019
Today..W winds 5 to 10 kt...increasing to 10 to 15 kt with gusts up to 25 kt this afternoon.
Tonight..NW winds 5 to 15 kt.
Sun..E winds 5 to 15 kt.
Sun night..S winds 10 to 20 kt with gusts up to 30 kt. Rain likely.
Mon..SW winds 20 to 30 kt with gusts up to 40 kt. Rain likely.
Mon night..E winds 5 to 10 kt. A chance of showers.
Tue..S winds up to 10 kt. Rain.
Wed..SW winds 5 to 15 kt. Rain likely.
PZZ500 840 Am Pdt Sat Mar 23 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Expect moderate to fresh winds from the northwest near the coast today in the wake of this mornings frontal passage. Winds will shift on Sunday to come out of the south and increase ahead of the next system. A long period northwest swell will move through waters into tonight before decaying on Sunday.


7 Day Forecast for Marine Location Near San Francisco, CA
   Hourly   EDIT   Help
location: 37.81, -122.44     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 231522
afdmtr
area forecast discussion
national weather service san francisco bay area
822 am pdt Sat mar 23 2019

Synopsis Showers will end this morning with partly cloudy skies
and cool temperatures this afternoon. Mainly dry conditions are
expected over the weekend with additional storm systems expected
next week. These systems will bring periods of rain and breezy
conditions to the region.

Discussion As of 08:21 am pdt Saturday... A cold front
associated with a pacific trough pushed through much of the area
overnight, bringing a period of moderate to heavy rain as it
passed through. The front is currently passing through monterey
and san benito counties with clearing to the northwest. Rainfall
totals with this system have ranged from 2-3" in the north bay
mountains, 0.5-1.25" north bay valleys and santa cruz mountains,
0.25-0.75" across the sf bay area and coastal locations, and less
than 0.25" over the southeastern portion of the forecast area.

Showers will continue to move southeast and should move out of the
forecast area by noon today. Behind the front, clouds will
decrease and sunshine will increase this afternoon. Cumulus will
likely develop especially over the higher terrain and a stray
shower cannot be ruled out. Highs today will be cool behind the
front, with upper 50s to lower 60s in most locations. Breezy
northwest winds will also contribute to temperatures feeling cool
this afternoon.

High pressure will keep conditions dry through Sunday afternoon.

Highs on Sunday will rebound several degrees, with 60s in most
locations, although the warmest locations may hit 70. The next
pacific trough will approach the area on Sunday evening with rain
developing over the north bay first. A cold front will start to
push through the region on Sunday night, bringing rain to the bay
area and points north. Southerly winds will increase ahead of the
front and may become gusty near the coast and in the higher
terrain. The front will slowly move south through the day on
Monday but will weaken, therefore the highest rainfall totals will
fall across the north bay with lesser amounts to the south. A few
showers will be possible on Tuesday as the remnants of the front
remain over the region and southwest flow continues.

The next, stronger storm system will move through the area Tuesday
night into Wednesday, with a few showers lingering into Thursday.

Widespread rain will occur across the area from this system, and
many areas will likely see higher rainfall totals than the Monday
system. Ensembles favor a return to dry conditions for late next
week into the following weekend.

Prev discussion As of 2:56 am pdt Saturday... Moderate to heavy rain
is currently impacting portions of the bay area as a cold front
continues to move through the region. Latest surface analysis puts
the cold front currently bisecting the san francisco bay. Kmux
radar imagery continues to show moderate to heavy echoes along and
ahead of the front. Rainfall amounts over the last 24 hours have
been greatest across the north bay with a few jackpots of 2-3" in
the higher terrain. The recent rains have led to stream rises
across the north bay, but nothing of notable concern.

Latest short term models indicate the front will continue to
slowly push southward across the rest of the forecast area through
early Saturday morning. As the front moves from N to S steady
rainfall will diminish. This trend can already be seen with rain
already ending across the north bay. A few lingering showers will
be possible across southern areas through mid-morning, but most
areas north of monterey bay will be dry. Despite a passing cold
front, snow levels will remain just high enough to not see any
frozen precip. Profiler along the big sur coast has kept snow
levels above 6k feet. By Saturday afternoon much of the bay area
will see clearing skies, but cool temperatures. Added some patchy
fog to the forecast Saturday night for the north bay valleys
given the ample low level moisture.

Dry weather is expected for Sunday with seasonably cool
temperatures.

Rain will return to the bay area Sunday night as another cold
front is forecast to sweep across the region. Rain will initially
start over the north bay Sunday night, before spreading southward
by Monday morning. Unlike the current cold front, the Sunday
night front looks to fizzle once it gets south of san jose.

Therefore, rainfall amounts will be greatest across the north bay
and much less south of san jose. A few lingering showers will be
possible Monday afternoon evening. Some of the medium range
models keep a few showers on Tuesday as well with the dissipating
front.

Another disturbance will bring another round of rain Tuesday
night in Thursday. Finally see a drier period next Friday into
Saturday.

Aviation As of 4:40 am pdt Saturday... For 12z tafs. Cold front
is presently passing through the san francisco bay area. As of
the 12z TAF issuance, terminals are generally reportingVFR MVFR
conditions along with light to moderate rain. Rain chances will
drop off over the next 1-2 hours at most terminals in the wake of
the frontal passage withVFR conditions likely to prevail by mid-
morning onward. Can't rule out some very localized fog around
sunrise in the north bay. Will likely see some post-frontal
convective cumulus stratocumulus as the day progresses. In
addition, can't rule out a stray rain shower in the afternoon, but
chances seem rather low at this point. Winds will become west to
northwest behind the front and through the rest of the day.

Vicinity of ksfo...VFR conditions will likely prevail through the
day as the front is now to the east of the terminal. The moderate
rainfall overnight will quickly come to an end with some isolated
showers lingering for another hour or two. Will likely see
few scattered cumulus build-ups by the afternoon, generally
at above 3,000 ft. Winds will become more west to northwest by
mid-morning, increasing to around 10-15 kt by the afternoon.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Light to moderate rain will come to an
end at mry and sns in the next few hours as a cold front passes
through the area. After the rain comes to an end,VFR conditions
are forecast to prevail. Can't rule out some sct or even bkn
cumulus build-ups this afternoon. Winds will become onshore after
the frontal passage.

Marine As of 2:42 am pdt Saturday... Rain showers will decrease
in coverage through the morning hours as a front passes through
the region. Behind the front, winds will become to west to
northwest. A moderate long-period northwest swell will impact the
area through Saturday night. Winds will become southerly again on
Sunday before increasing Sunday night as another frontal system
approaches.

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
sca... Mry bay from 10 am
public forecast: st
aviation: rowe
marine: rowe
visit us at

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FTPC1 - 9414290 - San Francisco, CA 1 mi42 min WSW 6 G 9.9 53°F 56°F1022.3 hPa (+1.5)
PXSC1 2 mi42 min 55°F 47°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 3 mi42 min W 8.9 G 12 53°F 1021 hPa (+1.5)
OBXC1 5 mi60 min 53°F 48°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 6 mi37 min NW 1.9 55°F 1022 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 6 mi42 min WNW 2.9 G 5.1 53°F 1022.1 hPa (+1.6)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 6 mi42 min W 4.1 G 6
AAMC1 - 9414750 - Alameda, CA 8 mi48 min W 1.9 G 4.1 54°F 57°F1022.4 hPa
LNDC1 8 mi42 min WNW 2.9 G 5.1 54°F 1022 hPa (+1.7)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 8 mi42 min Calm G 4.1 55°F 1022.3 hPa (+1.6)
RCMC1 - 9414863 - Richmond, CA 8 mi42 min WNW 5.1 G 7 53°F 56°F1021.8 hPa (+1.5)
46237 - San Francisco Bar, CA (142) 10 mi72 min 55°F9 ft
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 19 mi42 min W 6 G 8.9 53°F 1021.7 hPa (+1.6)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 21 mi42 min NNW 9.7 G 14 54°F 55°F1022.9 hPa (+1.5)
UPBC1 23 mi42 min W 8.9 G 13
MZXC1 - 9415102 - Martinez-Amorco CA 23 mi42 min W 9.9 G 11 53°F 56°F1021.7 hPa (+1.4)53°F
RTYC1 - 9414523 - Redwood City, CA 24 mi42 min WNW 6 G 8 53°F 60°F1022.7 hPa (+1.7)
PCOC1 - 9415144 - Port Chicago, CA 27 mi42 min WSW 7 G 9.9 53°F 56°F1021.8 hPa (+1.5)
PRYC1 - 9415020 - Point Reyes, CA 31 mi42 min 55°F1022 hPa (+1.2)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 33 mi42 min WNW 6 G 8.9 54°F 1021.5 hPa (+1.5)
SFXC1 - San Francisco Bay Reserve, CA 35 mi117 min WNW 1.9 51°F 1021 hPa50°F

Wind History for San Francisco, CA
(wind in knots)    EDIT      (on/off)   Help
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last
24hr
SE2
SE4
G7
SE6
G11
SE9
G13
SE5
G9
SE6
G10
SW1
SE4
SE4
G7
SE7
G10
SW3
SE3
SE3
S3
SE2
G5
SE4
G10
S7
G11
S3
SW4
W5
G8
SW4
W4
G7
SW2
SW5
G8
1 day
ago
E3
NE3
N2
W7
G10
W5
G11
SW7
G13
W7
G14
SW8
G14
W7
G13
SW8
G11
W8
G11
W7
G12
SW9
G12
SW8
G12
SW3
G7
SW4
SW2
G6
S2
S4
SE3
S3
SE4
SE3
SE5
G8
2 days
ago
SW4
G8
SW4
G10
SW6
G12
SW8
G15
W7
G13
W8
G11
W7
G12
W4
G11
W5
G11
W6
G9
SW2
G8
S3
S3
S3
SW2
S3
N4
S3
S3
SW1
N4
S1
S2
E4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA14 mi49 minNW 310.00 miPartly Cloudy55°F51°F87%1022.1 hPa
San Francisco, San Francisco International Airport, CA14 mi46 minW 109.00 miA Few Clouds54°F46°F77%1021.7 hPa
Hayward, Hayward Air Terminal, CA20 mi48 minNW 310.00 miPartly Cloudy64°F48°F56%1022.8 hPa
Half Moon Bay Airport, CA21 mi47 minNNW 75.00 miOvercast with Haze54°F48°F82%1022.7 hPa
San Carlos Airport, CA22 mi55 minW 410.00 miMostly Cloudy54°F48°F82%1022 hPa
Concord, Buchanan Field, CA24 mi49 minSW 310.00 miFair54°F46°F77%1020.4 hPa
Novato / Gnoss Field, CA24 mi67 minWNW 1010.00 miFair54°F46°F77%1021.7 hPa

Wind History from SFO (wind in knots)
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last 24hrSE6E7SE6E7SE6S10SE8E9SE10SE6SE7S6
G19
SE6SE8SE8CalmS7SE4W5W4W10W12W11W10
1 day agoN5NE4E7NE5W9W13W15W17--W10W10W9SW5S4SE3S4SW5CalmSE5SE4SE4SE6S7E4
2 days agoSW12SW14SW11SW11SW9SW11W11W10W7W9SW6SW4SW4SW3SE3S6CalmW4SW4CalmSW5W4S3N6

Tide / Current Tables for San Francisco, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
San Francisco
Click for Map
Sat -- 01:55 AM PDT     6.10 feet High Tide
Sat -- 07:09 AM PDT     Sunrise
Sat -- 07:56 AM PDT     0.03 feet Low Tide
Sat -- 09:05 AM PDT     Moonset
Sat -- 02:31 PM PDT     5.30 feet High Tide
Sat -- 07:24 PM PDT     Sunset
Sat -- 08:03 PM PDT     1.08 feet Low Tide
Sat -- 10:43 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
4.95.86.15.74.52.91.40.400.41.32.43.64.65.25.24.63.52.31.41.11.32.13.2

Tide / Current Tables for Golden Gate Bridge .8 mi E ., San Francisco Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Golden Gate Bridge .8 mi E .
Click for Map
Sat -- 12:29 AM PDT     3.41 knots Max Flood
Sat -- 03:29 AM PDT     -0.00 knots Slack
Sat -- 06:42 AM PDT     -3.27 knots Max Ebb
Sat -- 07:08 AM PDT     Sunrise
Sat -- 09:05 AM PDT     Moonset
Sat -- 10:08 AM PDT     0.01 knots Slack
Sat -- 01:03 PM PDT     3.52 knots Max Flood
Sat -- 04:15 PM PDT     -0.00 knots Slack
Sat -- 07:08 PM PDT     -2.52 knots Max Ebb
Sat -- 07:24 PM PDT     Sunset
Sat -- 10:22 PM PDT     0.00 knots Slack
Sat -- 10:43 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
3.33.32.40.9-0.7-2.2-3.1-3.2-2.6-1.6-0.21.633.53.22.10.5-1-2.1-2.5-2.2-1.5-0.40.9

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station San Francisco Bay Area, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.