Saturday, November17, 2018 L-36.com


Marine Weather and Tides
Boulder Creek, 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 6:49AMSunset 4:57PM Saturday November 17, 2018 7:23 PM PST (03:23 UTC) Moonrise 2:17PMMoonset 1:01AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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- 152 Pm Pst Sat Nov 17 2018
Rest of today..W winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 15 seconds and sw around 2 ft at 15 seconds. Hazy and patchy smoke.
Tonight..N winds around 5 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 16 seconds and sw around 2 ft at 15 seconds.
Sun..W winds up to 10 kt. Wind waves 2 ft or less. W swell around 5 ft at 15 seconds and S around 2 ft at 16 seconds.
Sun night..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 4 to 5 ft at 13 seconds and sw around 2 ft at 16 seconds.
Mon..NW winds 5 to 10 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 12 seconds and sw around 2 ft at 16 seconds.
Mon night..NW winds around 5 kt. Wind waves 2 ft or less. W swell 3 to 4 ft at 12 seconds and sw around 2 ft at 16 seconds.
Tue..S winds 5 to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and S around 2 ft. Rain likely.
Wed..S winds 10 to 20 kt. Wind waves 2 ft or less. W swell 3 to 6 ft and S around 2 ft. Rain.
PZZ500 152 Pm Pst Sat Nov 17 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light winds through the weekend and into early next week. An approaching storm system will bring increasing southerly winds mid week next week. Mixed moderate northwest swell and a light southerly swell will persist.


7 Day Forecast for Marine Location Near Boulder Creek, CA
   Hourly   EDIT   Help
location: 37.13, -122.29     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 172353
afdmtr
area forecast discussion
national weather service san francisco bay area
353 pm pst Sat nov 17 2018

Synopsis Widespread smoke and haze at times combining with
coastal fog resulting in extended poor air quality and low
visibilities over the san francisco bay area should show some
improvement first along the immediate coast today then inland
Sunday. Forecast models continue to indicate an active pacific
weather pattern reaching california next week with the potential
for widespread periodic rainfall starting Wednesday and continuing
into next weekend.

Discussion As of 1:43 pm pst Saturday... Afternoon temperatures
are running on the cool side today with weak onshore flow and
muted sunshine due to smoky skies. Current readings range from the
upper 50s to upper 60s, with a few lower to middle 70s in inland
monterey county. Visibilities at area airports continue to be poor
across the entire san francisco bay and central coast areas,
generally 1 to 3 miles due to smoke. Slight relief is possible
near the coast from the current weak onshore flow, but the poor
air quality is expected to persist until the expected rain events
midweek.

The upper level ridge anchored along the west coast is starting
to slowly break down with the approach of an upper trough. During
the next couple of days, winds are expected to continue to be
light, with mild daytime highs and cool overnight lows. By mid-
week, things will change as the first of several frontal systems
impacts the state.

The 12z GFS brings rainfall into coastal areas from the monterey
bay northward late Tuesday night, spreading rainfall eastward
through the rest of northern california Wednesday. Another system
is progged for Friday with showers into Saturday, and then a
third front moves through on Sunday. The 12z ECMWF now has more
similar timing to the gfs, with a stronger trough initially
reaching the coast early Wednesday morning, and spreading
rainfall eastward by Thursday. Then, another system tries to push
in from the north on Friday, with a weaker system bringing
showers to the far north on Saturday. Even though there are still
some discrepancies between these model solutions, the overarching
theme is a more likely chance of rain reaching our region during
the middle to latter part of next week. This rainfall will not
only bring beneficial moisture to the area, but also improve the
air quality.

Aviation As of 3:50 pm pst Saturday... For 00z tafs. Smoke and
a stagnant airmass will continue to result in widespread MVFR-ifr
visibilities through the period. In addition, increased low level
moisture due to the presence of a marine layer will mean lower
ceilings and ifr-lifr visibilities during the late night and
morning hours. Visibility will be lowest from near sunrise thru
mid morning with additional slant range visby issues. No
significant improvement in visibility expected until the first in
a series of storm systems arrives around the middle of next week.

Winds will remain light.

Vicinity of ksfo... Ifr MVFR visibility due to smoke and haze
throughout the forecast period. Slant range vis issues will
persist. Marine stratus push tonight will bring additional issues
with ifr ceilings visibilities developing by late Saturday
evening and continuing through mid morning Sunday. Local lifr
visibilities in fog possible for a few hours around sunrise.

Moderate confidence. Winds will remain light.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... MVFR ceilings visibility early in period,
deteriorating to lifr conditions by late Saturday evening,
continuing through about 18z Sunday. Improving conditions expected
late Sunday morning and afternoon, but MVFR-ifr visibility will
likely persist. Winds remain light.

Marine As of 1:52 pm pst Saturday... Light winds through the
weekend and into early next week. An approaching storm system will
bring increasing southerly winds mid week next week. Mixed
moderate northwest swell and a light southerly swell will persist.

Mtr watches warnings advisories
Tngt None.

Public forecast: sims
aviation: dykema
marine: drp
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
46042 - MONTEREY - 27NM West of Monterey Bay, CA 25 mi34 min W 5.8 G 7.8 56°F 62°F5 ft1016.5 hPa (-0.0)
RTYC1 - 9414523 - Redwood City, CA 26 mi36 min NW 1.9 G 1.9 54°F 58°F1017.1 hPa
46114 - West Monterey Bay, CA 28 mi24 min 62°F4 ft
46092 - MBM1 30 mi75 min WSW 5.8 56°F 58°F1016.6 hPa (+0.0)
ELXC1 - Elkhorn Slough Reserve, CA 36 mi99 min E 1.9 53°F 1016 hPa49°F
46240 - Cabrillo Point, Monterey Bay, CA (158) 40 mi33 min 60°F2 ft
MEYC1 42 mi48 min 60°F1017.2 hPa
AAMC1 - 9414750 - Alameda, CA 44 mi36 min WNW 1.9 G 5.1 58°F1017.1 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 46 mi36 min WSW 6 G 8.9 54°F 1015.8 hPa
LNDC1 46 mi36 min N 1 G 1.9 55°F 1016.8 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi36 min W 8 G 8.9
OBXC1 47 mi36 min 55°F 51°F
PXSC1 47 mi36 min 55°F 51°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 47 mi78 min WNW 4.1 G 5.1 55°F 1016.6 hPa
FTPC1 - 9414290 - San Francisco, CA 48 mi36 min Calm G 2.9 56°F1017.2 hPa
46237 - San Francisco Bar, CA (142) 49 mi54 min 55°F3 ft

Wind History for Redwood City, CA
(wind in knots)    EDIT      (on/off)   Help
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
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
Last
24hr
SW2
S2
S1
SW1
SE3
SW2
SW2
SW1
SE2
S1
S1
SE3
--
NW1
N5
N2
NW2
N5
G8
NW8
NW8
NW5
NW6
NW4
NW1
1 day
ago
S1
S1
SW1
SW1
--
S1
SE2
--
SW1
SE2
SE3
S2
SW1
SE1
E2
E2
N2
--
N6
N6
N3
NW1
--
--
2 days
ago
SE2
SW2
W1
E3
--
--
S1
--
--
--
S2
SE2
SE1
--
NW1
NW1
NW3
--
N4
N2
NE1
SW2
S1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mountain View, Moffett Field, CA24 mi28 minN 05.00 miSmoke54°F48°F83%1017.3 hPa

Wind History from NUQ (wind in knots)
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
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
Last 24hrCalmCalmCalmCalmCalmSW3CalmSW3CalmCalmCalmCalmCalmCalmCalmN4N5N6NW7NW6N4N5CalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN4N4N4NE3NE3CalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3N4CalmN4N6CalmCalmCalm

Tide / Current Tables for Ano Nuevo Island, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Ano Nuevo Island
Click for Map
Sat -- 01:01 AM PST     Moonset
Sat -- 06:13 AM PST     4.42 feet High Tide
Sat -- 06:50 AM PST     Sunrise
Sat -- 12:36 PM PST     1.96 feet Low Tide
Sat -- 02:17 PM PST     Moonrise
Sat -- 04:57 PM PST     Sunset
Sat -- 05:50 PM PST     3.55 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
0.91.322.83.64.14.44.343.42.82.3222.22.63.13.43.53.42.92.31.71.2

Tide / Current Tables for Santa Cruz, California
   EDIT      (on/off)   Help   One Week of Data
Santa Cruz
Click for Map
Sat -- 01:00 AM PST     Moonset
Sat -- 06:41 AM PST     4.56 feet High Tide
Sat -- 06:48 AM PST     Sunrise
Sat -- 12:48 PM PST     2.11 feet Low Tide
Sat -- 02:15 PM PST     Moonrise
Sat -- 04:56 PM PST     Sunset
Sat -- 05:50 PM PST     3.62 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
1.11.52.12.83.64.14.54.54.33.83.22.62.22.12.32.73.23.53.63.432.51.91.4

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 (22,6,7,8)
      (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.