Monday, June24, 2019 L-36.com


Marine Weather and Tides
Monte Sereno, CA

Version 3.4
NOTICE
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:47AMSunset 8:33PM Monday June 24, 2019 10:14 AM PDT (17:14 UTC) Moonrise 12:00AMMoonset 11:34AM Illumination 54% Phase: Third Quarter Moon; Moon at 22 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
PZZ560 Coastal Waters From Pigeon Point To Point Pinos California Out To 10 Nm- 824 Am Pdt Mon Jun 24 2019
Today..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft at 9 seconds.
Tonight..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 9 seconds.
Tue..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. NW swell 4 to 5 ft at 8 seconds.
Tue night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. Mixed swell nw 4 to 6 ft at 8 seconds and S around 3 ft at 16 seconds.
Wed..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. Mixed swell nw 3 to 4 ft at 9 seconds and S around 3 ft at 15 seconds.
Wed night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. Mixed swell nw 2 to 3 ft at 11 seconds and S around 3 ft at 14 seconds.
Thu..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft.
Fri..NW winds 10 to 20 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft.
PZZ500 824 Am Pdt Mon Jun 24 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty northwesterly winds will continue over the northern outer waters and along the coast north of point reyes through Tuesday as high pressure remains over the eastern pacific. These winds will result in steep fresh swell creating hazardous conditions over the waters, especially for smaller vessels. Winds will diminish on Tuesday as high pressure weakens and an upper low moves offshore of the pacific northwest.


7 Day Forecast for Marine Location Near Monte Sereno, CA
   Hourly   EDIT   Help
location: 37.21, -122.06     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 241618
afdmtr
area forecast discussion
national weather service san francisco bay area
918 am pdt Mon jun 24 2019

Synopsis A cooling trend will get underway today and continue
through midweek, with temperatures forecast to cool by 10 to 20
degrees by Wednesday. In addition, expect an increase in night and
morning low clouds over the next few days. Temperatures will warm
a bit late in the week and into next weekend, but remain slightly
below seasonal averages.

Discussion As of 9:18 am pdt Monday... Visible satellite
imagery reveals marine stratus impacting parts of the san
francisco bay area this morning. Observations from the terminals
across the region indicate ceilings are around 200 to 1,000 ft agl
with a relatively shallow marine layer. As the morning
progresses, the low clouds will mix out of the inland valleys and
the san francisco bay as mostly sunny skies return with some
passing high clouds. Some locations along the immediate coast may
see some low clouds linger through the day. High temperatures will
begin trending downward this afternoon as an upper level low
gradually approaches the pacific northwest. The most noticeable
cooling will be felt across the interior where temperatures will
drop by 7-10 degrees from yesterday to today. The present short-
term forecast remains on track; for additional details beyond day
1, please refer to the previous discussion section.

Prev discussion As of 2:55 am pdt Monday... Low clouds and fog
formed overnight along most of our coastline from bodega bay
southward, and also locally inland through the golden gate and up
the salinas valley. This increasing coverage of marine layer
stratus and fog is in response to a gradual uptick in onshore flow
as the upper ridge that brought very warm temperatures to our
inland areas over the weekend begins to break down. The marine
layer is still relatively shallow at present, but is expected to
deepen over the next few days as an upper trough currently
settling over the pacific northwest digs south over california.

The deepening trough will also enhance onshore flow and bring a
cooler airmass south into california. 850 mb temperatures are
forecast to drop from about 21 deg c presently to around 11 deg c
by Wednesday. Thus, we can expect a robust cooling trend through
midweek. By Wednesday, high temperatures are forecast to be as
much as 20 degrees cooler than this past weekend's temps and be
anywhere from 5 to 12 degrees cooler than normal.

The models are in good agreement regarding this upcoming cooling
trend and indicate that Wednesday and Thursday will be the coolest
days of the week. Slightly warmer temperatures are expected on
Friday and on into the weekend, as the core of the upper trough
lifts to the northeast. However, the longwave trough position will
remain positioned near the west coast, and so temperatures will
likely remain at least slightly below average on through the
upcoming weekend.

In the longer range, the ensemble mean of both the GFS and ecmwf
indicate that the longwave trough position will retrograde as we
move into early july, allowing a ridge over the desert southwest
to build back towards california. Thus, we may see warmer
temperatures by the july 4th holiday, especially across inland
areas.

Aviation As of 04:32 am pdt Monday... For 12z tafs. A shallow
marine layer remains in place as satellite imagery shows stratus
along the coast and through the golden gate as well as over the
monterey peninsula down into the salinas valley. Periodic
MVFR ifr conditions possible around the bay area TAF sites this
morning and in the north bay. Ifr lifr conditions will prevail
this morning for the monterey TAF sites along with occasional fog.

Vfr conditions expected by late this morning (~16z-18z) and
lasting into this evening. Generally light winds increasing and
becoming onshore in the afternoon.

Vicinity of ksfo... Occasional MVFR ifr CIGS possible until around
16z.VFR conditions to then prevail this afternoon and evening. W
to NW winds this afternoon around 15 kt with gusts to 20 kt
possible.

Sfo bridge approach... Satellite shows patches of stratus
developing along the approach. May lose visuals over the approach
before the terminal.

Monterey bay terminals... Lifr CIGS with occasional fog into this
morning. Currently expecting clearing around 16z-18z.VFR
conditions will then prevail this afternoon. Generally light
winds this morning becoming onshore by the afternoon.

Marine As of 8:24 am pdt Monday... Gusty northwesterly winds
will continue over the northern outer waters and along the coast
north of point reyes through Tuesday as high pressure remains over
the eastern pacific. These winds will result in steep fresh swell
creating hazardous conditions over the waters, especially for
smaller vessels. Winds will diminish on Tuesday as high pressure
weakens and an upper low moves offshore of the pacific northwest.

Mtr watches warnings advisories
Tday Sca... Pt arena to pt reyes 0-10 nm
sca... Pt arena to pigeon pt 10-60 nm
public forecast: rowe dykema
aviation: as
marine: rgass
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 22 mi57 min NW 2.9 G 5.1 74°F1012.9 hPa
46092 - MBM1 32 mi122 min Calm 55°F 59°F1013 hPa (+0.0)
ELXC1 - Elkhorn Slough Reserve, CA 32 mi90 min NNW 1.9 55°F 1013 hPa55°F
MLSC1 - Moss Landing, South Harbor, CA 32 mi65 min NNW 1 G 4.1 55°F 1013.9 hPa54°F
46042 - MONTEREY - 27NM West of Monterey Bay, CA 34 mi85 min WSW 1.9 G 3.9 56°F 61°F7 ft1012.9 hPa (+0.5)
46114 - West Monterey Bay, CA 37 mi45 min 60°F7 ft
46240 - Cabrillo Point, Monterey Bay, CA (158) 41 mi45 min 60°F2 ft
AAMC1 - 9414750 - Alameda, CA 41 mi63 min W 2.9 G 4.1 60°F 69°F1013.2 hPa
LNDC1 42 mi57 min N 4.1 G 6 1012.6 hPa
MEYC1 43 mi99 min 62°F1013.3 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 43 mi63 min NNE 2.9 G 2.9
OBXC1 44 mi69 min 59°F 59°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 44 mi57 min WNW 5.1 G 7 1012.7 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi57 min W 4.1 G 8.9 59°F 1011.7 hPa
PXSC1 45 mi57 min 60°F 58°F
FTPC1 - 9414290 - San Francisco, CA 46 mi63 min W 4.1 G 9.9 56°F 61°F1013.1 hPa

Wind History for Redwood City, CA
(wind in knots)    EDIT      (on/off)   Help
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
10
AM
Last
24hr
N4
N7
NW9
G12
N11
G14
N16
N17
NW17
NW15
G19
N14
G17
N14
G18
N7
G10
NW6
NW8
NW5
N2
NW3
W4
NW4
NW4
NW4
NE1
SE2
NW3
N4
1 day
ago
N3
NW4
NW6
G9
N7
NW12
G15
W12
G16
W12
G15
W8
G13
NW8
G11
N7
G10
NW10
NW5
N3
NW4
NW4
NW4
NW4
NW4
W2
SW3
W3
N2
--
E4
2 days
ago
N4
G7
N7
N10
NW13
G16
NW10
NW11
G14
NW12
N14
G17
N12
NW11
G16
NW6
G9
NW5
N5
N4
NW4
NW5
NW3
S1
S1
S1
SW1
--
SE2
W1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose, San Jose International Airport, CA13 mi22 minVar 310.00 miMostly Cloudy71°F53°F53%1011.8 hPa
Mountain View, Moffett Field, CA15 mi79 minN 310.00 miFair67°F57°F73%1012.7 hPa
San Jose / Reid / Hillv, CA16 mi28 minN 010.00 miMostly Cloudy70°F53°F57%1012.2 hPa
Palo Alto Airport, CA19 mi70 minVar 410.00 miMostly Cloudy63°F57°F83%1012.5 hPa
San Carlos Airport, CA24 mi22 minN 49.00 miMostly Cloudy66°F59°F78%1012.5 hPa
Watsonville, Watsonville Municipal Airport, CA24 mi22 minN 010.00 miOvercast60°F54°F80%1013.2 hPa

Wind History from SJC (wind in knots)
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
10
AM
Last 24hrCalm4NW10NW10NW11NW14NW12NW12NW11NW10NW8NW6CalmNW5NW6CalmS4CalmSE7SE3SE5Calm33
1 day agoN3N5N8N8NW11NW15N19N16N13NW8NW7NW5CalmCalmSE3S4CalmCalmS4S4S4CalmCalmCalm
2 days agoNE34NW8N12NW12NW11NW11NW13NW13NW10NW6W4W5S5SE5SE7S5S7S3S4SE3CalmCalmNE3

Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Gold Street Bridge
Click for Map
Mon -- 12:57 AM PDT     Moonrise
Mon -- 02:02 AM PDT     2.95 feet Low Tide
Mon -- 05:45 AM PDT     6.97 feet High Tide
Mon -- 05:48 AM PDT     Sunrise
Mon -- 12:33 PM PDT     Moonset
Mon -- 01:39 PM PDT     0.69 feet Low Tide
Mon -- 07:41 PM PDT     8.20 feet High Tide
Mon -- 08:32 PM PDT     Sunset
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
3.83.22.93.556.576.65.94.83.62.31.40.80.81.63.25.16.988.27.76.95.7

Tide / Current Tables for Dumbarton Point 2.3 mi NE, South San Francisco Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Dumbarton Point 2.3 mi NE
Click for Map
Mon -- 12:57 AM PDT     Moonrise
Mon -- 01:31 AM PDT     0.00 knots Slack
Mon -- 03:35 AM PDT     0.55 knots Max Flood
Mon -- 05:48 AM PDT     Sunrise
Mon -- 06:18 AM PDT     -0.00 knots Slack
Mon -- 10:54 AM PDT     -0.87 knots Max Ebb
Mon -- 12:33 PM PDT     Moonset
Mon -- 01:34 PM PDT     0.00 knots Slack
Mon -- 04:22 PM PDT     0.99 knots Max Flood
Mon -- 07:49 PM PDT     -0.00 knots Slack
Mon -- 08:33 PM PDT     Sunset
Mon -- 11:43 PM PDT     -0.66 knots Max Ebb
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
-0.4-0.20.20.50.50.40.1-0.1-0.4-0.6-0.8-0.9-0.6-0.20.20.7110.80.4-0-0.3-0.5-0.6

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 (13,3,4,5)
      (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.