Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
Point Reyes Station, CA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:55AMSunset 7:12PM Wednesday September 19, 2018 9:39 AM PDT (16:39 UTC) Moonrise 3:30PMMoonset 12:46AM Illumination 72% 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
PZZ545 Point Reyes To Pigeon Point To 10 Nm- 834 Am Pdt Wed Sep 19 2018
.small craft advisory in effect through late tonight...
Today..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. W swell 3 to 5 ft at 10 seconds.
Tonight..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. W swell 3 to 4 ft at 12 seconds.
Thu..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 2 to 4 ft at 12 seconds.
Thu night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft at 11 seconds.
Fri..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft at 10 seconds.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 2 to 4 ft. Patchy fog.
Sun..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft. Patchy fog.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...combined seas 2 to 4 ft with a dominant period of 15 second swell periods. Across the bar...combined seas 3 to 5 ft with a dominant period of 15 second swell periods. Maximum ebb current of 1.5 knots at 12:37 pm Wednesday and 1.5 knots at 12:49 am Thursday.
PZZ500 834 Am Pdt Wed Sep 19 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to locally strong northerly winds will prevail over the coastal waters today as high pressure remains over the eastern pacific. Gusty winds will generate steep wind waves creating hazardous sea conditions, especially for smaller vessels. Winds will then diminish late this week as the high pressure weakens and the thermal trough shifts towards the coast.


7 Day Forecast for Marine Location Near Point Reyes Station, CA
   Hourly   EDIT   Help
location: 38.06, -122.82     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 191616
afdmtr
area forecast discussion
national weather service san francisco bay area
916 am pdt Wed sep 19 2018

Synopsis A warming and drying trend will begin over the area
today and continue into Thursday as onshore flow weakens. Gusty
northerly winds in higher elevations will result in enhanced fire
weather concerns from tonight into Thursday morning, mainly in
the hills of eastern napa county. Temperatures moderate slightly
over the upcoming weekend but will remain near to slightly above
seasonal averages.

Discussion As of 9:16 am pdt Wednesday... The marine layer has
deepened overnight to around 2000 feet, and satellite imagery
shows coastal stratus has pushed well inland through the monterey
bay area filling the salinas valley, and also extending northward
into southern santa clara county. Stratus coverage is much more
patchy over the san francisco bays with oak being the only bay
area airport affected by low ceilings at this time. Surface
pressure gradients are still predominately onshore with 1.1 mb
from sfo to sac, but the northerly gradient from acv-sfo is much
tighter versus 24 hours ago with 5.3 mb compared to 1.9 mb
yesterday at this time. This tight northerly gradient will
produced gusty winds across the north bay mountains, where a fire
weather watch remains in effect through tonight for gusty winds
and poor rh recoveries. Gusty winds are also possible tonight over
the east bay hills as well as the santa cruz mountains.

The upper level trough currently over california will continue to
move to the east as high pressure aloft builds in from the eastern
pacific. This will produce a warming trend over the next few days,
peaking on Thursday when high temperatures are forecast to edge
into the 90s across the warmest inland areas, with 60s and 70s
along the coast.

Latest medium range model runs bring a weak trough across the
pacnw over the weekend with high pressure rebuilding over the
eastern pacific early next week. Thus, temperatures should remain
around normal or slightly above.

Aviation As of 04:28 am pdt Wednesday... For 12z tafs.

Satellite imagery showing patchy stratus around the san mateo
coast, part of the east bay, and over the monterey bay area.

Expecting clearing between 16z-18z.VFR conditions this afternoon
and evening. Most sites expected to remainVFR through the period
aside from possible stratus development tonight for the monterey
taf sites. Onshore winds this afternoon 10-15 kt.

Vicinity of ksfo...VFR, possibility that the terminal could be
occasionally affected this morning by periodic MVFR cigs. Onshore
winds this afternoon around 15 kt.

Sfo bridge approach... .Clouds may move into the approach from the
east bay through late this morning.

Monterey bay terminals... .Ifr CIGS to continue through around
18z-19z.VFR this afternoon and evening. Chance of low cigs
returning tonight, but confidence is low. Onshore winds this
afternoon 10-15 kt.

Marine As of 8:34 am pdt Wednesday... Moderate to locally
strong northerly winds will prevail over the coastal waters today
as high pressure remains over the eastern pacific. Gusty winds
will generate steep wind waves creating hazardous sea conditions,
especially for smaller vessels. Winds will then diminish late this
week as the high pressure weakens and the thermal trough shifts
towards the coast.

Mtr watches warnings advisories
Tday Sca... Pigeon pt to pt pinos 0-10 nm from 11 am
sca... Pt arena to pigeon pt 10-60 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm
sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Mry bay from 2 pm
public forecast: sims
aviation: as
marine: mm
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
PRYC1 - 9415020 - Point Reyes, CA 9 mi40 min WNW 18 G 21 52°F1013 hPa (+1.3)
46237 - San Francisco Bar, CA (142) 21 mi70 min 57°F5 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 21 mi30 min NNW 12 G 14 53°F 53°F1014.1 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 23 mi35 min SE 6 57°F 1014 hPa
RCMC1 - 9414863 - Richmond, CA 24 mi40 min 64°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 26 mi40 min S 5.1 G 7 58°F 1013.7 hPa (+1.1)
FTPC1 - 9414290 - San Francisco, CA 26 mi46 min W 1 G 6 57°F 60°F1013.5 hPa
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 29 mi30 min NW 18 G 21 51°F1013.4 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 29 mi40 min WSW 2.9 G 5.1 59°F 1012.9 hPa (+1.2)
PXSC1 29 mi46 min 59°F 54°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi40 min SE 7 G 9.9 57°F 1012.1 hPa (+0.8)
OKXC1 - 9414776 - Oakland (Berth 34), CA 31 mi40 min SSE 4.1 G 7 58°F 1013.3 hPa (+0.9)
OBXC1 31 mi40 min 57°F 55°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 32 mi46 min SSE 4.1 G 6
AAMC1 - 9414750 - Alameda, CA 34 mi46 min S 2.9 G 5.1 57°F 66°F1013.5 hPa
LNDC1 34 mi40 min S 4.1 G 8 58°F 1013.2 hPa (+0.9)
46214 - Point Reyes, CA (029) 35 mi40 min 53°F11 ft
MZXC1 - 9415102 - Martinez-Amorco CA 37 mi40 min WNW 8.9 G 9.9 59°F 66°F1013 hPa (+1.2)56°F
PCOC1 - 9415144 - Port Chicago, CA 41 mi40 min WSW 9.9 G 12 59°F 66°F1012.8 hPa (+1.2)
SFXC1 - San Francisco Bay Reserve, CA 43 mi55 min W 8 59°F 1012 hPa53°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 49 mi40 min NW 8.9 G 12 63°F 1012.1 hPa (+1.2)

Wind History for Point Reyes, CA
(wind in knots)    EDIT      (on/off)   Help
10
AM
11
AM
12
PM
1
PM
-12
PM
-12
PM
4
PM
-12
PM
6
PM
7
PM
8
PM
-12
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
-12
PM
6
AM
7
AM
8
AM
9
AM
Last
24hr
NE1
NW5
G8
NW6
G11
NW10
G14
NW16
G20
NW22
NW22
NW21
NW23
G28
NW21
NW17
G22
NW19
G24
NW24
NW19
NW22
NW19
NW15
G19
NW15
W18
1 day
ago
NW10
G14
NW8
G12
NW15
G19
W16
G22
W13
G17
W16
G21
W15
W13
G18
W12
G17
W12
G16
NW9
G12
NW6
W7
G10
NW3
W3
G6
W6
W9
NW10
G14
W3
NW5
G8
NE4
2 days
ago
W13
G17
W16
W14
G18
W14
G18
W16
W16
G23
W16
G20
W14
G20
W14
G18
W12
G16
W15
G20
NW12
G15
NW15
NW12
G15
NW10
G13
NW10
G13
W12
G17
NW9
NW8
G12
NW11
G15
NW11
G16
NW12
G17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA15 mi65 minN 08.00 miFair54°F48°F82%1013.2 hPa
Petaluma Municipal Airport, CA18 mi45 minW 39.00 miFair55°F51°F88%1013.5 hPa

Wind History from DVO (wind in knots)
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
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last 24hrNW444CalmE65SW7
G14
SW11S5
G11
4CalmCalmCalmCalm--CalmN3CalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalm6E8SW16SW14
G20
SW14
G20
SW12SW12S7
G16
E6E7CalmCalmCalmCalmCalmCalmCalmS3CalmCalmCalmCalm
2 days ago4W7
G14
NW8NW8
G16
W9
G25
W12
G19
W9
G19
SW13
G19
56E5E4CalmCalmCalmCalmCalmCalmCalmCalmCalmNW4CalmNE6

Tide / Current Tables for Inverness, Tomales Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Point Reyes, California Current
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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 (12,3,4,5)
      (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.