Saturday, March23, 2019 L-36.com


Marine Weather and Tides
Novato, 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 7:26PM Saturday March 23, 2019 8:14 AM PDT (15:14 UTC) Moonrise 9:45PMMoonset 8:05AM Illumination 93% 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- 242 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 242 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... 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.


7 Day Forecast for Marine Location Near Novato, CA
   Hourly   EDIT   Help
location: 38.1, -122.59     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 231139
afdmtr
area forecast discussion
national weather service san francisco bay area
439 am pdt Sat mar 23 2019

Synopsis A frontal boundary will move from northwest to
southeast across the early Saturday, resulting in widespread
rainfall. Mainly dry conditions are expected over the weekend with
unsettled weather likely to return during at least the first half
of next week.

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: mm
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
RCMC1 - 9414863 - Richmond, CA 16 mi63 min 53°F 56°F1020.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 18 mi57 min 53°F 1021.2 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 18 mi57 min 53°F 1020.6 hPa
FTPC1 - 9414290 - San Francisco, CA 21 mi63 min 52°F 55°F1021.1 hPa
46237 - San Francisco Bar, CA (142) 22 mi75 min 55°F9 ft
PRYC1 - 9415020 - Point Reyes, CA 22 mi57 min 55°F1021.2 hPa
PXSC1 23 mi63 min 53°F 49°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 23 mi57 min 52°F 1019.9 hPa
OBXC1 24 mi57 min 53°F 50°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 24 mi57 min 53°F 1021 hPa
UPBC1 25 mi165 min W 1.9 G 2.9
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 25 mi165 min W 4.1 G 7
MZXC1 - 9415102 - Martinez-Amorco CA 25 mi57 min 53°F 56°F1020.7 hPa53°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 27 mi45 min NW 12 G 16 54°F 55°F1022.1 hPa
LNDC1 27 mi57 min 53°F 1020.9 hPa
AAMC1 - 9414750 - Alameda, CA 27 mi63 min 53°F 57°F1021.2 hPa
PCOC1 - 9415144 - Port Chicago, CA 29 mi57 min 54°F 56°F1020.8 hPa
SFXC1 - San Francisco Bay Reserve, CA 31 mi90 min NNE 1.9 50°F 1020 hPa49°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 37 mi57 min 53°F 1020.6 hPa
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 39 mi45 min NNW 9.7 G 14 54°F1021.6 hPa
RTYC1 - 9414523 - Redwood City, CA 46 mi57 min 53°F 60°F1021.6 hPa
46214 - Point Reyes, CA (029) 48 mi45 min 55°F11 ft

Wind History for Richmond, CA
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
SE8
G11
SE6
G11
SE6
G14
SE9
G12
SE7
G10
SE6
G10
S11
S10
G14
SE7
G11
SE8
G11
SE9
G13
SE6
G13
SE7
G10
SE6
G9
SE7
S10
G13
S10
G14
S6
G10
S8
G11
SE4
G10
S7
G10
NW5
W5
G8
NW6
1 day
ago
NE4
NW3
NW2
W3
S3
S5
S5
SW4
G8
SW8
G13
SW7
G13
SW5
G10
SW3
G6
SW4
G8
SW4
G7
W5
SW2
G5
W4
SW1
SW1
NW1
S4
S7
G10
SE7
G10
SE7
G10
2 days
ago
SE9
G15
SW7
G12
SW5
G9
SW5
G9
SW4
G10
SW7
G12
SW6
G9
SW5
G9
SW5
G9
SW5
G11
SW4
G8
SW4
G7
SW2
G5
SW2
SW3
W5
NW4
NW3
W3
NW3
NW4
N5
N5
NE4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA4 mi40 minE 510.00 miA Few Clouds48°F46°F94%1021.3 hPa
Petaluma Municipal Airport, CA11 mi40 minN 09.00 miOvercast48°F48°F100%1021.3 hPa
Napa, Napa County Airport, CA18 mi21 minWSW 410.00 miPartly Cloudy49°F46°F93%1020.2 hPa

Wind History from DVO (wind in knots)
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 24hrSE7S6SE6SE6SE7SE7SE10SE8SE9S9SE11SE6SE7
G13
SE8S9SE6CalmCalmCalmCalmS5S4Calm--
1 day agoN5N4CalmN3N8CalmNW8W9
G15
SW10SW164
G13
CalmN4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE6
2 days agoSE10
G16
S6SW8SW7SW11SW14SW10SW12W9SW9SW7--W4CalmSW3CalmSW3CalmCalmNE3CalmCalmCalmCalm

Tide / Current Tables for Petaluma River entrance, San Pablo Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Petaluma River entrance
Click for Map
Sat -- 03:16 AM PDT     6.41 feet High Tide
Sat -- 07:09 AM PDT     Sunrise
Sat -- 09:05 AM PDT     Moonset
Sat -- 10:07 AM PDT     0.02 feet Low Tide
Sat -- 03:52 PM PDT     5.56 feet High Tide
Sat -- 07:24 PM PDT     Sunset
Sat -- 10:14 PM PDT     0.95 feet Low Tide
Sat -- 10:44 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
2.74.35.66.46.25.54.22.71.40.400.41.42.84.25.25.65.24.43.32.21.311.2

Tide / Current Tables for Petaluma River Approach, San Pablo Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Petaluma River Approach
Click for Map
Sat -- 03:27 AM PDT     -0.00 knots Slack
Sat -- 06:42 AM PDT     -0.78 knots Max Ebb
Sat -- 07:08 AM PDT     Sunrise
Sat -- 09:04 AM PDT     Moonset
Sat -- 10:08 AM PDT     0.00 knots Slack
Sat -- 12:39 PM PDT     0.65 knots Max Flood
Sat -- 04:05 PM PDT     -0.01 knots Slack
Sat -- 06:51 PM PDT     -0.70 knots Max Ebb
Sat -- 07:24 PM PDT     Sunset
Sat -- 09:59 PM PDT     0.00 knots Slack
Sat -- 10:44 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
0.70.60.40.1-0.2-0.6-0.7-0.8-0.7-0.4-0.10.40.60.60.50.30-0.4-0.6-0.7-0.6-0.400.5

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 (11,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Sacramento, 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.