Monday, May27, 2019 L-36.com


Marine Weather and Tides
Redwood City, 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 8:22PM Monday May 27, 2019 5:27 AM PDT (12:27 UTC) Moonrise 1:29AMMoonset 12:48PM Illumination 39% 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
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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 221 Am Pdt Mon May 27 2019
.small craft advisory in effect from 9 am pdt this morning through this evening...
Today..SW winds 5 to 15 kt. Gusts up to 25 kt this afternoon.
Tonight..W winds 5 to 15 kt with gusts up to 25 kt.
Tue..SW winds 10 to 20 kt with gusts up to 25 kt.
Tue night..SW winds 5 to 15 kt.
Wed..SW winds 10 to 20 kt with gusts up to 25 kt.
Wed night..SW winds 5 to 15 kt.
Thu..SW winds 5 to 15 kt.
Fri..W winds 5 to 15 kt.
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 Redwood City, CA
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location: 37.52, -122.2     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 271202
afdmtr
area forecast discussion
national weather service san francisco bay area
502 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 5:02 am pdt Monday...VFR-MVFR except vlifr-lifr
in patchy fog. Goes-east satellite imagery shows patchy lifr over
sonoma, marin, santa cruz, san benito and monterey counties. Ksts
reports 1 2 mile visibility in fog. Latest WRF model run boundary
layer rh is mostly in line with actual observations except it's
under-forecasting rh in the north bay. Mid level clouds continue
brush the eastern cwa, these clouds are wrap around clouds from
upper low that passed by Sunday which is now located over southern
nevada. Morning forecasts in the 12z tafs is mainly persistence,
similar to Sunday meso-scale models are leaning toward bkn-ovc
cloud cover lingering into the afternoon with residual moisture
continuing tonight. Patchy fog is a possibility again late tonight
into Tuesday morning.

Vicinity of ksfo... MVFR ceiling til 18z then sct-bkn MVFR into the
afternoon and early evening. West wind becoming gusty to near 20
knots at times today.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... MVFR-vfr, west wind 10 to 12 knots today
settling back to near 5 knots by mid evening.

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 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 marine: canepa
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 1 mi40 min W 4.1 G 5.1 53°F 65°F1017 hPa
AAMC1 - 9414750 - Alameda, CA 18 mi46 min W 4.1 G 7 53°F 62°F1016.4 hPa
LNDC1 19 mi40 min S 1 G 1.9 53°F 1016.1 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 21 mi40 min SW 5.1 G 5.1
OBXC1 21 mi40 min 53°F 52°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 21 mi40 min SSW 1 G 2.9 53°F 1016.2 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 22 mi40 min Calm G 2.9 52°F 1015.1 hPa
PXSC1 22 mi40 min 53°F 51°F
FTPC1 - 9414290 - San Francisco, CA 24 mi46 min SSW 1.9 G 4.1 51°F 59°F1016.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 28 mi40 min S 7 G 8.9 54°F 1016.2 hPa
46237 - San Francisco Bar, CA (142) 29 mi58 min 57°F4 ft
RCMC1 - 9414863 - Richmond, CA 30 mi40 min 60°F
UPBC1 36 mi40 min W 1.9 G 2.9
MZXC1 - 9415102 - Martinez-Amorco CA 36 mi40 min Calm G 2.9 52°F 62°F1015.9 hPa52°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 37 mi40 min SW 5.1 G 7 53°F 1015.5 hPa
PCOC1 - 9415144 - Port Chicago, CA 38 mi40 min S 7 G 8.9 51°F 62°F1015.7 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 38 mi28 min NW 14 G 16 53°F 1016.6 hPa (+0.0)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 40 mi40 min SW 1 G 1.9 55°F 1015.4 hPa
SFXC1 - San Francisco Bay Reserve, CA 48 mi103 min WNW 4.1 50°F 1016 hPa48°F

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mountain View, Moffett Field, CA10 mi92 minN 010.00 miPartly Cloudy52°F46°F80%1016.5 hPa
Hayward, Hayward Air Terminal, CA11 mi34 minSW 610.00 miOvercast54°F48°F80%1017.2 hPa
San Francisco, San Francisco International Airport, CA11 mi92 minW 117.00 miMostly Cloudy54°F48°F80%1015.9 hPa
Oakland, Metro Oakland International Airport, CA12 mi35 minSW 510.00 miOvercast55°F48°F80%1016.3 hPa
Half Moon Bay Airport, CA16 mi33 minN 810.00 miOvercast52°F48°F88%1016.6 hPa
San Jose, San Jose International Airport, CA18 mi35 minESE 410.00 miOvercast53°F50°F89%1016.4 hPa
Livermore, Livermore Municipal Airport, CA24 mi35 minN 010.00 miMostly Cloudy51°F45°F80%1016 hPa

Wind History from SQL (wind in knots)
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Last 24hr--------------------W9
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SW8SW8SW5SW9--W5
1 day ago------------------W6SW9SW12
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2 days ago------------------CalmCalmCalm--N6NW8W12--W11NW8--W7W10SW11
G15
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Tide / Current Tables for Redwood Creek entrance (inside), San Francisco Bay, California
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Redwood Creek entrance (inside)
Click for Map
Mon -- 02:28 AM PDT     Moonrise
Mon -- 03:11 AM PDT     2.53 feet Low Tide
Mon -- 05:51 AM PDT     Sunrise
Mon -- 07:41 AM PDT     6.02 feet High Tide
Mon -- 01:48 PM PDT     Moonset
Mon -- 02:39 PM PDT     0.80 feet Low Tide
Mon -- 08:20 PM PDT     Sunset
Mon -- 09:26 PM PDT     6.99 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.63.62.92.52.83.74.95.865.64.83.72.51.50.90.81.42.53.95.26.36.96.96.3

Tide / Current Tables for Little Coyote Pt 3.1 mi ENE, South San Francisco Bay, California Current
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Little Coyote Pt 3.1 mi ENE
Click for Map
Mon -- 01:33 AM PDT     0.00 knots Slack
Mon -- 02:28 AM PDT     Moonrise
Mon -- 04:17 AM PDT     0.27 knots Max Flood
Mon -- 05:51 AM PDT     Sunrise
Mon -- 07:23 AM PDT     -0.00 knots Slack
Mon -- 09:56 AM PDT     -0.52 knots Max Ebb
Mon -- 01:31 PM PDT     0.00 knots Slack
Mon -- 01:48 PM PDT     Moonset
Mon -- 04:59 PM PDT     0.51 knots Max Flood
Mon -- 08:20 PM PDT     Sunset
Mon -- 08:35 PM PDT     -0.00 knots Slack
Mon -- 10:56 PM PDT     -0.46 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map and Satellite Images
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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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (8,2,3,4)
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Ground Weather Radar Station San Francisco Bay Area, 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.