Monday, November20, 2017 L-36.com


Marine Weather and Tides
Cloverdale, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:58AMSunset 4:55PM Monday November 20, 2017 5:36 AM PST (13:36 UTC) Moonrise 8:48AMMoonset 6:55PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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
PZZ540 Point Arena To Point Reyes To 10 Nm- 214 Am Pst Mon Nov 20 2017
Today..SE winds 10 to 20 kt...with occasional gusts to 25 kt. Wind waves 2 to 5 ft. NW swell 3 ft at 12 seconds. Rain in the morning, then rain likely in the afternoon.
Tonight..SE winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 3 to 4 ft at 12 seconds. Slight chance of rain through the night.
Tue..SE winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 3 to 4 ft at 11 seconds.
Tue night..SE winds 10 kt. Wind waves 2 ft or less. W swell 5 to 7 ft at 12 seconds.
Wed..SE winds 10 kt...becoming w. Wind waves 2 ft or less. SW swell 6 to 8 ft at 12 seconds. Slight chance of rain.
Thanksgiving day..NW winds 10 kt. Wind waves 2 ft or less. SW swell 5 to 6 ft...shifting to the w. Chance of rain. Slight chance of rain.
Fri..NW winds 10 kt. Wind waves 2 ft or less. W swell 4 to 6 ft. Slight chance of rain.
PZZ500 214 Am Pst Mon Nov 20 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... The eastern edge of a very moist sub-tropical flow will overlap the northern coastal waters through early this week. A warm frontal boundary connected to this moist flow will approach the coastal waters today and become nearly stationary while another warm front to the southwest advances toward it and the bay area. By late week into early next week a cold front will move southeastward over the coastal waters. Seas are expected to remain light to moderate through the first part of next week.

7 Day Forecast for Marine Location Near Cloverdale, CA
   Hourly   EDIT   Help
location: 38.77, -122.99     debug


Area Discussion for - Sacramento, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksto 201100
afdsto
area forecast discussion
national weather service sacramento ca
300 am pst Mon nov 20 2017

Synopsis
Weather system will bring rain chances to the region today. Mainly
dry weather is then expected for the remainder of the week with
rain chances limited to the northern mountains.

Discussion
Cloudy skies across interior norcal as the next weather system
moves into the region. Measurable rain has so far been limited to
the coast range where amounts up to two tenths of an inch have
been reported since late Sunday evening. So far, only sprinkles
have been occurring over the sacramento valley and far northern
sierra nevada.

Current temperatures are considerably milder compared to 24 hours
ago and range from the upper 30s and lower 40s in the mountain
valleys to the upper 40s and lower 50s in the central valley.

Mostly light precipitation is expected across interior norcal
today as we catch the tail end of a system moving through the
pacnw. Satellite imagery shows a wide plume of deep moisture (tpw
of around 1.5 inches) moving up from the southwest. Warm-advection
and terrain will be the main forcing mechanisms as the cold front
remains to the north, and precip in the valley will occur mainly
to the north of sacramento. Heaviest amounts will be in the
mountains where up to an inch may occur into this evening. Snow
levels will remain above 10k feet.

Dry weather returns Tuesday and Wednesday as high pressure
strengthens over the west ahead of the deepening trough over the
gulf of alaska. Temperatures will be unseasonably mild with upper
60s and lower 70s expected through the central valley (around 10
degrees above average).

Another weak system will move through the ridge on thanksgiving
and may bring even lighter QPF (than the current system) to far
northern california.

.Extended discussion (Friday through Monday)
weak system will be exiting the area on Friday with a few
lingering showers across mountains. Snow levels will remain high,
so not expecting any impact there, other than some wet roads. Rest
of the extended period characterized by high model uncertainty.

Ecmwf and GFS out of phase with subsequent waves, leading to low
confidence in timing and extent of precipitation for the weekend
into early next week. ECMWF fairly wet for Sunday into Monday
while GFS holds off until Monday night-Tuesday. Have left low
chance pops across much of the area through the period until
better agreement is shown. As it stands now, snow levels look high
(above 8-9k feet through the weekend), then perhaps dropping
below pass levels by Monday. Will be something to watch depending
on which solution verifies. Temperatures will remain mild through
the period, around 4-10 degrees above normal for this time of
year.

Aviation
Showers possible today with areas of MVFR conditions from time to
time in heavier showers. Winds generally 10 kts or less.

Sto watches warnings advisories None.



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
ANVC1 - 9416841 - Arena Cove, CA 40 mi49 min ESE 11 G 19 57°F 56°F1016.7 hPa
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 40 mi37 min E 12 G 16 55°F 56°F1017 hPa (-1.2)52°F

Wind History for Arena Cove, CA
(wind in knots)    EDIT      (on/off)   Help
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
5
AM
Last
24hr
E9
E9
E8
SE2
SW6
S5
S4
G7
SW3
G7
E4
G7
E2
G6
E5
E5
G8
E5
G9
E5
E3
G9
E6
E8
G12
E8
G13
E11
G15
E11
G15
E10
G14
E11
G17
E11
G16
E10
G15
1 day
ago
E9
E10
E9
E4
S2
S3
S3
SW2
W3
W4
NW5
NE2
NE3
E4
E5
E6
E7
E9
E8
E8
E9
E8
E8
E9
2 days
ago
E4
E4
E3
E3
W6
G9
W5
G10
NW7
G11
NW6
G11
NW5
G10
W5
G8
NW2
NW3
G6
NE2
G5
E3
NE3
NE6
E4
E5
NE5
E6
G9
E8
E7
E8
E8

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA20 mi44 minN 35.00 miFog/Mist50°F50°F100%1016.6 hPa

Wind History from STS (wind in knots)
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
5
AM
Last 24hrNW4N4CalmCalmCalmNW3CalmCalmW4S4CalmCalmSW4SE3S3CalmW4CalmN5CalmN3N4NW4N3
1 day agoNW6NW6NW4N3NW3NW43CalmW3W3W3W3CalmCalmCalmNW3N5CalmCalmNW3N5NW6CalmW5
2 days agoNW3NW3E3W43N4N3NE4Calm3NW3W4NW7N8CalmW4CalmNW4CalmNW6NW4W5NW4NW5

Tide / Current Tables for Fort Ross, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Fort Ross
Click for Map
Mon -- 12:21 AM PST     4.47 feet High Tide
Mon -- 05:21 AM PST     2.65 feet Low Tide
Mon -- 07:00 AM PST     Sunrise
Mon -- 08:47 AM PST     Moonrise
Mon -- 10:59 AM PST     5.51 feet High Tide
Mon -- 04:56 PM PST     Sunset
Mon -- 06:04 PM PST     -0.32 feet Low Tide
Mon -- 06:56 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.44.443.52.92.72.73.23.94.75.35.55.34.53.420.8-0-0.3-0.10.61.62.63.5

Tide / Current Tables for Salt Point, California Current
   EDIT      (on/off)   Help   One Week of Data
Salt Point
Click for Map
Mon -- 01:27 AM PST     -0.00 knots Slack
Mon -- 03:37 AM PST     -0.67 knots Max Ebb
Mon -- 06:59 AM PST     0.00 knots Slack
Mon -- 07:01 AM PST     Sunrise
Mon -- 08:48 AM PST     Moonrise
Mon -- 09:41 AM PST     0.68 knots Max Flood
Mon -- 12:27 PM PST     -0.00 knots Slack
Mon -- 03:44 PM PST     -1.31 knots Max Ebb
Mon -- 04:56 PM PST     Sunset
Mon -- 06:57 PM PST     Moonset
Mon -- 07:43 PM PST     0.00 knots Slack
Mon -- 10:44 PM PST     0.99 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.2-0.3-0.6-0.6-0.5-0.300.30.60.70.50.2-0.3-0.8-1.2-1.3-1.1-0.8-0.40.10.60.91

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Sacramento, CA (8,2,3,4)
      (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.