Saturday, January16, 2021
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Marine Weather and Tides
Cloverdale, CA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:25AMSunset 5:17PM Saturday January 16, 2021 12:27 AM PST (08:27 UTC) Moonrise 10:04AMMoonset 9:10PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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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PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 831 Pm Pst Fri Jan 15 2021
.small craft advisory in effect through late Saturday night...
This afternoon..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 7 to 8 ft. W swell 9 to 10 ft at 14 seconds and W 5 to 7 ft at 20 seconds.
Tonight..NW winds 10 to 20 kt with gusts up to 30 kt. Wind waves 7 to 8 ft. NW swell 4 to 6 ft at 14 seconds and W 8 to 10 ft at 20 seconds.
Sat..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 8 to 9 ft. SWell W 11 to 13 ft at 17 seconds.
Sat night..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 8 to 9 ft. SWell W 8 to 10 ft at 15 seconds.
Sun..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 8 to 9 ft. W swell 3 to 5 ft at 22 seconds and W 5 to 7 ft at 14 seconds.
Sun night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 8 to 9 ft. W swell 9 to 11 ft at 22 seconds and W 2 to 4 ft at 14 seconds.
Martin luther king jr day..N winds 10 to 20 kt with gusts up to 25 kt. Wind waves 7 to 8 ft. W swell 8 to 10 ft.
Tue..N winds 10 to 20 kt with gusts up to 25 kt. Wind waves 5 to 6 ft. W swell 3 to 5 ft.
PZZ500 831 Pm Pst Fri Jan 15 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A new moderate west to northwest swell builds tonight resulting in hazardous seas conditions for small crafts into the weekend. Winds are moderate to locally breezy and out of the northwest across the waters through much of the weekend. Winds will shift more northerly Sunday to Sunday night and increase as offshore winds pick up over land. Stronger winds will then persist into early next week. A second larger long period northwest swell will arrive late Sunday.


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


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 152302 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 302 PM PST Fri Jan 15 2021

SYNOPSIS. Dry weather into next week with areas of late night and morning valley fog. Well above average temperatures will continue into next week. Strong winds possible early next week.

DISCUSSION. Visible satellite early this afternoon is showing most of the fog has dissipated across interior NorCal. High clouds can be seen streaming through the north state as a weak shortwave moves along the flow. The clouds will dampen temperatures in the northern Sacramento Valley today. Temperatures across the Central Valley are forecast to peak in the mid to upper 60s, which is still around 10 to 15 degrees above the daily normal. A few light radar returns are also popping up with this shortwave over Shasta County and the northern mountains. Some sprinkles may be possible, though rain accumulation is not expected.

Strong high pressure builds over Northern California this weekend, allowing temperatures to rise more. High temperatures are forecast around 10 to 20 degrees normal this weekend with Valley and foothill temperatures in the mid 60s to low 70s and mountain temperatures in the upper 40s to 60s. Radiation fog is still likely to form in the evenings into the mornings through Sunday morning as overnight relative humidity values are forecast to remain high.

Ensemble guidance continues to suggest an offshore wind event late Sunday into Tuesday. A shortwave trough will slide south down the coast Sunday into Monday with another wave of energy sliding southwest from the Great Basin into Southern California late Monday into Tuesday. North to east winds are expected to increase with the first wave late Sunday night, remaining fairly strong through Tuesday. At this point, the strongest Valley winds are expected Monday afternoon and evening with stronger mountain winds Tuesday. The NAEFS continues to show a band of anomalous winds Monday into Tuesday, with 30+ year return intervals for Monday afternoon over the Central Valley. More forecast details can be found in the discussion below. -HEC

EXTENDED DISCUSSION (Tuesday THROUGH Friday). Models are coming into good agreement Tuesday will be a gusty day for Northern California. An upper level closed low will push off the Southern California coast early next week bringing gusty offshore winds to California. Cluster analysis first started picking up this feature in the synoptic pattern several days ago and has continued to consistently hone in on the location and timing of this closed low. Therefore, we can have some confidence this will likely be an impactful wind event for California. Areas that typically see onshore flow, like the Delta, will see the reverse, with strong offshore flow expected. These north to east gusts could potentially cause tree damage and power outages. Current forecast for Monday and Tuesday indicates wind gusts ranging from 30 to 50 mph in the Valley, 50 to 60 mph in the mountains, and gusts up to 70+ in favored gaps, canyons and ridgetops. Weakened or burned trees and limbs may fall in strong winds. A High Wind Watch has been issued for late Sunday night through Tuesday for much of the Valley, foothills, and mountains. Please stay informed with the lasted forecast updates as the details of this event are still subject to change. Thereafter, quiet weather is expected Wednesday into Thursday as models are indicating a pattern change with a gradual cooling trend in to the weekend. A low pressure system is forecast to possibly impact northern california by next Friday and into the weekend. Stay tuned for updates on this possible return of wet weather to Northern California as we still have a lot of uncertainty this far out in the forecast period.

AVIATION. Stratus eroding in the Valley/Delta areas this afternoon with local areas of MVFR VSBYS possibly lingering into the early evening. Trof moving through the Pac NW will spread high cloud cover over Norcal (bases ABV 10 thsd ft) until ridge rebuilds over the area on Sat lifting moisture Nwd. Chance of relatively narrow area of IFR/LIFR in fog and low CIGS redeveloping late tonite into Sat morning, advecting Nwd from KMOD towards KMHR and KMYV by early Sat morning. This area that develops Sat morning will be E of the area that formed this morning. Light winds.

STO WATCHES/WARNINGS/ADVISORIES. High Wind Watch from late Sunday night through Tuesday evening for Carquinez Strait and Delta-Central Sacramento Valley- Motherlode-Mountains Southwestern Shasta County to Western Colusa County-Northeast Foothills/Sacramento Valley-Northern Sacramento Valley-Northern San Joaquin Valley-Shasta Lake Area / Northern Shasta County-Southern Sacramento Valley-West Slope Northern Sierra Nevada-Western Plumas County/Lassen Park.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BDXC1 32 mi82 min 52°F
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 39 mi48 min NW 18 G 21 54°F 53°F1023.7 hPa53°F
ANVC1 - 9416841 - Arena Cove, CA 40 mi58 min NE 1 G 5.1 53°F 52°F1025.4 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA20 mi35 minW 39.00 miFair50°F49°F96%1023.6 hPa

Link to 5 minute data for KSTS

Wind History from STS (wind in knots)
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Last 24hrW3CalmCalmCalmCalmN5CalmCalmCalmCalmNW4CalmCalmS33S4S4SE4E5NW4N3CalmCalmW3
1 day agoS4CalmCalmN3N3NW6NW3NW3W3CalmCalmSE3CalmS4SW3S4CalmCalmS4S3S3W3E4Calm
2 days agoCalmSE3NW4W3CalmCalmCalmCalmCalmCalm3CalmCalmCalmNW4NW6CalmW4CalmCalmCalmNW4N4N4

Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Sat -- 01:37 AM PST     5.01 feet High Tide
Sat -- 06:54 AM PST     2.64 feet Low Tide
Sat -- 07:28 AM PST     Sunrise
Sat -- 10:04 AM PST     Moonrise
Sat -- 12:22 PM PST     5.51 feet High Tide
Sat -- 05:17 PM PST     Sunset
Sat -- 07:21 PM PST     -0.20 feet Low Tide
Sat -- 09:11 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.34.954.643.32.82.62.93.54.355.55.44.83.82.51.20.3-0.2-0.10.61.52.7

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Sat -- 02:42 AM PST     -0.00 knots Slack
Sat -- 04:58 AM PST     -0.70 knots Max Ebb
Sat -- 07:29 AM PST     Sunrise
Sat -- 08:21 AM PST     0.00 knots Slack
Sat -- 10:04 AM PST     Moonrise
Sat -- 11:03 AM PST     0.71 knots Max Flood
Sat -- 01:50 PM PST     -0.00 knots Slack
Sat -- 05:03 PM PST     -1.27 knots Max Ebb
Sat -- 05:17 PM PST     Sunset
Sat -- 09:00 PM PST     0.00 knots Slack
Sat -- 09:11 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.10.80.4-0.2-0.6-0.7-0.6-0.4-0.10.20.60.70.60.4-0.1-0.6-1.1-1.3-1.2-0.9-0.5-00.50.9

Weather Map
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wmap_P
GEOS 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
Ground Weather Radar Station




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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 numerous 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.