Monday, May27, 2019 L-36.com


Marine Weather and Tides
Millbrae, 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 5:50AMSunset 8:23PM Monday May 27, 2019 4:30 AM PDT (11:30 UTC) Moonrise 1:30AMMoonset 12:49PM Illumination 40% Phase: Third Quarter Moon; Moon at 23 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
PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 221 Am Pdt Mon May 27 2019
.small craft advisory in effect from this afternoon through late tonight...
Today..NW winds 10 to 15 kt...becoming 10 to 20 kt with gusts up to 25 kt this afternoon. Wind waves 2 ft or less...becoming 3 to 4 ft this afternoon. W swell 4 to 6 ft at 9 seconds.
Tonight..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 8 seconds.
Tue..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 8 seconds and sw around 3 ft at 18 seconds.
Tue night..NW winds 15 to 25 kt with gusts up to 35 kt. Wind waves 4 to 5 ft. NW swell 6 to 8 ft at 9 seconds and sw around 3 ft at 16 seconds.
Wed..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. NW swell 5 to 7 ft at 10 seconds and sw around 3 ft at 16 seconds.
Wed night..NW winds 20 to 30 kt. Wind waves 4 to 5 ft. NW swell 4 to 6 ft at 10 seconds and sw around 3 ft at 16 seconds.
Thu..NW winds 10 to 20 kt. Wind waves 3 to 4 ft. W swell 4 to 6 ft and sw around 3 ft.
Fri..NW winds 10 to 20 kt. Wind waves 2 ft or less. W swell 4 to 6 ft and sw around 3 ft.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...combined seas 6 to 8 ft with a dominant period of 9 seconds. Across the bar...combined seas 8 to 11 ft with a dominant period of 9 seconds. Maximum ebb current of 1.3 kt at 12:07 pm Monday and 1.7 kt at 01:13 am Tuesday.
PZZ500 221 Am Pdt Mon May 27 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Surface high pressure over the eastern pacific will remain nearly stationary through late week. Winds will decrease this morning before becoming breezy again this afternoon. Northwest winds will strengthen further and become breezy to gusty Tuesday and Wednesday. Moderate northwest swell continues during the week with steep fresh seas generated by gusty winds.


7 Day Forecast for Marine Location Near Millbrae, CA
   Hourly   EDIT   Help
location: 37.58, -122.39     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 271024
afdmtr
area forecast discussion
national weather service san francisco bay area
324 am pdt Mon may 27 2019

Synopsis Slight warming is expected today, but temperatures
will remain well below seasonal averages. More robust warming on
Tuesday and Wednesday will bring temperatures back to near normal
by midweek. Dry conditions are expected to prevail for most areas
during the remainder of the week and into next weekend.

Discussion As of 3:20 am pdt Monday... The cold upper low that
brought scattered showers, isolated thunderstorms, and
unseasonably cool temperatures to our area on Sunday has moved
well off to our southeast and is currently centered near las
vegas. Moisture wrapping around the back side of the departing low
continues to result in isolated very light showers in our area,
and a few sprinkles may linger through mid morning. But for the
most part, today should be a dry day under partly cloudy skies
(although some coastal areas may remain mostly cloudy).

Temperatures will recover slightly from Sunday's chilly readings,
with afternoon highs today forecast to be about five degrees
warmer than yesterday. Even so, temps today will remain much
cooler than normal.

The models agree that a weak shortwave trough will drop south out
of oregon this evening and track across our area late tonight.

The NAM generates scattered very light precipitation across our
area tonight as the disturbance passes, but most other models
maintain dry conditions. With considerable low level moisture
remaining over our area, it's not out of the question there could
be some isolated drizzle or very light rain overnight, but
measurable rainfall is not likely. The national blend of models
(nbm) forecasts slight rain chances only across a small area in
the hills of northwest monterey county overnight, and this seems
reasonable.

The shortwave trough will pass to our south by Tuesday and weak
shortwave ridging is expected to develop by afternoon. This
ridging should result in enough subsidence to produce a mostly
sunny afternoon along with more significant warming. The warming
trend is forecast to continue into Wednesday when high
temperatures will finally warm back to near seasonal averages.

The warming trend will stall on Thursday, or even reverse a bit,
as yet another weak upper level system moves in from the north and
settles into northeast california. Most model output indicates no
rain in our area with this system, but the GFS indicates a
potential for light rain in the north bay. The nbm keeps pops
below 10 percent on Thursday, so will keep rain chances out of the
forecast for now.

Longer range models generally agree that an upper ridge over the
eastern pacific will gradually build inland across northern
california over the weekend and into early next week. This would
put an end to any lingering precipitation chances and also bring
about more summer-like temperatures late in the forecast period.

Aviation As of 10:56 pm pdt Sunday... Scattered showers remain
this evening, mainly south of sf bay. The upper low which caused
more widespread showers and isolated thunderstorms earlier in the
day is departing to our southeast, and showers will continue to
decrease in coverage overnight. A few isolated showers may linger
near the monterey bay terminals into early Monday morning before
ending completely. A mix ofVFR MVFR currently with MVFR
conditions becoming more widespread overnight and into Monday.

Models at this time do not bring much clearing Monday afternoon so
could see CIGS continuing through most of Monday. Light winds
overnight becoming onshore with 10-15 kt on Monday afternoon.

Vicinity of ksfo... Showers have generally ended for the night at
the terminal. Expect CIGS of 1500-2500 feet overnight continuing
through Monday morning. CIGS expected to lift to 2500-3500 Monday
afternoon but may not completely erode. West winds 5-10 kt
overnight with 10-15 kt and gusts to 20 kt Monday afternoon.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Vcsh through the overnight hours with a
few isolated showers possibly lingering into Monday morning. Cigs
of 1000-2000 feet expected overnight through Monday morning. MVFR
likely to persist into Monday afternoon with CIGS of 2000-3000
feet.

Marine As of 2:21 am pdt Monday... Surface high pressure over
the eastern pacific will remain nearly stationary through late
week. Winds will decrease this morning before becoming breezy
again this afternoon. Northwest winds will strengthen further and
become breezy to gusty Tuesday and Wednesday. Moderate northwest
swell continues during the week with steep fresh seas generated by
gusty winds.

Mtr watches warnings advisories
Tday Sca... Pt arena to pt reyes 0-10 nm until 3 am
sca... Pigeon pt to pt pinos 0-10 nm until 3 am
sca... Pt pinos to pt piedras blancas 0-10 nm until 3 am
sca... Pt arena to pigeon pt 10-60 nm until 3 am
sca... Pigeon pt to pt piedras blancas 10-60 nm until 3 am
sca... Pt reyes to pigeon pt 0-10 nm from 3 pm
sca... Pigeon pt to pt pinos 0-10 nm from 3 pm
sca... Pt pinos to pt piedras blancas 0-10 nm from 3 pm
sca... Pt arena to pt reyes 0-10 nm from 9 am
sca... Pt arena to pigeon pt 10-60 nm from 9 am
sca... Sf bay from 9 am
sca... Mry bay from 9 am
public forecast: dykema
aviation: st
marine: canepa
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
RTYC1 - 9414523 - Redwood City, CA 11 mi30 min WNW 5.1 G 6 52°F 65°F1016.7 hPa (+0.0)
AAMC1 - 9414750 - Alameda, CA 14 mi30 min WSW 4.1 G 5.1 53°F 62°F1016.3 hPa (+0.0)
PXSC1 15 mi36 min 53°F 51°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 15 mi36 min W 1.9 G 4.1 52°F 1014.9 hPa
FTPC1 - 9414290 - San Francisco, CA 16 mi30 min SW 2.9 G 5.1 51°F 59°F1016.2 hPa (+0.0)
LNDC1 16 mi30 min WSW 2.9 G 4.1 53°F 1015.9 hPa (+0.0)
OBXC1 16 mi30 min 53°F 52°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 16 mi30 min S 2.9 G 4.1 53°F 1015.9 hPa (+0.0)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 16 mi30 min SSW 5.1 G 6
46237 - San Francisco Bar, CA (142) 19 mi60 min 57°F4 ft
PPXC1 - 9414847 - Richmond (Point Potrero), CA 23 mi36 min W 2.9 G 2.9 54°F 1016.1 hPa
RCMC1 - 9414863 - Richmond, CA 24 mi30 min W 2.9 G 4.1 52°F 60°F1015.6 hPa (+0.0)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 27 mi30 min NW 14 G 18 53°F 54°F1016.4 hPa (+0.0)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 34 mi36 min SSW 5.1 G 7 53°F 1015.4 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 34 mi30 min WSW 4.1 G 5.1 53°F 62°F1015.7 hPa (+0.0)53°F
UPBC1 35 mi30 min W 2.9 G 5.1
PCOC1 - 9415144 - Port Chicago, CA 38 mi30 min SSW 4.1 G 6 51°F 62°F1015.7 hPa (+0.0)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 41 mi30 min W 1.9 G 4.1 55°F 1015.3 hPa (+0.0)
PRYC1 - 9415020 - Point Reyes, CA 42 mi30 min 53°F1015.8 hPa (+0.0)
SFXC1 - San Francisco Bay Reserve, CA 47 mi105 min WNW 4.1 51°F 1016 hPa48°F

Wind History for Redwood City, CA
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
3
AM
Last
24hr
W11
G15
W16
G20
W12
G16
W10
G15
W14
G19
W14
G20
W8
G16
SW16
G25
W11
G14
W14
G20
SW14
G17
W13
G18
W12
G17
W9
W5
G9
W10
G14
W8
G11
W5
SW7
SW5
S4
SW3
--
W4
1 day
ago
S2
W12
G16
SW11
G15
SW8
G12
SW10
G14
W11
G14
W7
G12
NE4
G7
S4
G7
NW3
W13
G17
NW17
W15
SW11
G14
W12
W9
SW8
SW6
SW8
G12
SW10
G14
SW6
G10
SW14
G18
W13
G17
W14
G17
2 days
ago
SW1
S4
SW2
N1
N2
NW3
N5
G9
NW13
N8
G12
N11
G14
N13
G16
NW12
G17
NW11
NW10
W10
W9
G13
W11
G15
W13
NW7
W4
G7
W10
G13
W7
G10
W8
G11

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Francisco, San Francisco International Airport, CA3 mi94 minWSW 87.00 miMostly Cloudy55°F46°F74%1015.9 hPa
Half Moon Bay Airport, CA8 mi35 minNNW 10 G 147.00 miOvercast52°F48°F88%1016.6 hPa
Oakland, Metro Oakland International Airport, CA12 mi37 minSW 710.00 miOvercast55°F48°F77%1016.2 hPa
Hayward, Hayward Air Terminal, CA15 mi36 minW 310.00 miOvercast54°F46°F77%1017 hPa
Mountain View, Moffett Field, CA21 mi94 minWSW 310.00 miPartly Cloudy54°F46°F75%1016.6 hPa

Wind History from SFO (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
4
AM
Last 24hrW18
G27
W17W15
G21
W15
G26
W16
G26
W17W17
G24
W20
G26
W15
G25
W18
G24
W17W18W14
G20
W11
G19
W14W10W8W8W9SW6W7W8SW8W11
1 day agoW16
G20
W17
G26
W12W18
G22
W10
G19
SW8SE6W9SW8SW7W13W14
G21
W16
G23
W19
G24
SW15SW15SW18SW10W10W16W19W20
G26
W25
G29
W22
G29
2 days agoSW6SW6S6CalmCalmCalmNW8W17W11
G20
N10NW12W14W16W16
G22
W12SW9W14W10W8W12SW9
G17
W8W12SW9

Tide / Current Tables for Coyote Point Marina, San Francisco Bay, California (3)
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Coyote Point Marina
Click for Map
Mon -- 02:29 AM PDT     Moonrise
Mon -- 02:41 AM PDT     2.46 feet Low Tide
Mon -- 05:51 AM PDT     Sunrise
Mon -- 07:17 AM PDT     5.06 feet High Tide
Mon -- 01:49 PM PDT     Moonset
Mon -- 02:09 PM PDT     0.71 feet Low Tide
Mon -- 08:21 PM PDT     Sunset
Mon -- 09:02 PM PDT     6.31 feet High Tide
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
3.832.62.52.93.84.6554.53.72.71.710.70.91.72.845.266.36.15.4

Tide / Current Tables for Oyster Point 2.8 mi E, South San Francisco Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Oyster Point 2.8 mi E
Click for Map
Mon -- 02:29 AM PDT     Moonrise
Mon -- 02:56 AM PDT     0.00 knots Slack
Mon -- 05:31 AM PDT     0.41 knots Max Flood
Mon -- 05:51 AM PDT     Sunrise
Mon -- 08:08 AM PDT     -0.00 knots Slack
Mon -- 11:29 AM PDT     -1.05 knots Max Ebb
Mon -- 01:49 PM PDT     Moonset
Mon -- 02:54 PM PDT     0.00 knots Slack
Mon -- 06:13 PM PDT     0.77 knots Max Flood
Mon -- 08:21 PM PDT     Sunset
Mon -- 09:20 PM PDT     -0.00 knots Slack
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
-0.7-0.6-0.400.30.40.40.30-0.4-0.8-1-1-0.8-0.500.40.70.80.70.50.2-0.3-0.7

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 (7,2,3,4)
      (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.