Tuesday, January28, 2020
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Marine Weather and Tides
Kirkwood, CA

Version 3.4
NOTICE
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 7:08AMSunset 5:17PM Tuesday January 28, 2020 6:47 PM PST (02:47 UTC) Moonrise 9:32AMMoonset 9:04PM Illumination 17% Phase: Waxing Crescent; Moon at 4 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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7 Day Forecast for Marine Location Near Kirkwood, CA
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location: 38.82, -120.06     debug


Area Discussion for - Reno, NV
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FXUS65 KREV 282225 AFDREV

Area Forecast Discussion National Weather Service Reno NV 225 PM PST Tue Jan 28 2020

SYNOPSIS.

Breezy east ridge winds will develop late tonight through early Wednesday morning. After a brief cool down Wednesday, a ridge of high pressure is expected to bring dry and much warmer weather late week. A strong cold front will bring much colder weather back with a possible quick round of snow on Sunday into Monday.

SHORT TERM.

Breezy winds have affected much of the Sierra Front today with most wind gusts between 35 to 45 mph. Some localized wind gusts, especially across Washoe Valley and Carson City, were in the 45 to 60 mph range. These winds may result in areas of blowing dust, especially east of Highway 395 and Interstate 580 as wind speeds peak between 4-6 pm. High resolution simulations indicate that winds should begin to decrease after sunset for most of western Nevada and the Sierra.

As the low drops southward through tonight, north to northwest winds will remain quite breezy for some areas with some enhancement possible for locations downwind of north-south canyons. Portions of southern Mono and Mineral county may experience stronger wind gusts as the front drops southward late tonight through Wednesday morning. Highway 95 near Walker Lake may be a good candidate for enhanced wind gusts this afternoon into the evening.

Winds will begin to drop off noticeably overnight, especially by Wednesday morning and in the lower valley areas. Breezy east ridge winds will develop early Wednesday morning as the surface gradient tightens across the Sierra crest. Gusts up to 70-85 mph will be possible over exposed ridges along the immediate crest. While temperatures will begin to warm moderately on Wednesday, it will feel a bit cool with north to northeast winds in place. High temperatures will be near average for late January.

A weak shortwave passes through on Thursday and will bring another round of light showers primarily to areas along the Nevada/Oregon border and into northeastern Nevada. High pressure builds in across the west for Friday and Saturday with much warmer temperatures and light winds. High temperatures for Friday and Saturday will be well above average (mid to upper 60s for the lower valleys and upper 50s for the higher elevations), with some locations nearing record highs. However, this will be short-lived as a strong front will be approaching the region for Sunday. -Edan

LONG TERM. Sunday and beyond .

A fast moving shortwave will move through northern CA/NV on Sunday, bringing strong gusty winds and a sharp cold front through the region. This shortwave looks to be very quick, but it does look pretty sharp and dynamic and will usher in much colder temperatures for next week. The cold front that pushes through Sunday evening will potentially create a band of snow that may bring a light coating of snow even down to the valley floors in western Nevada. Latest models continue to speed up the passage of the front, bringing the front through the region late Sunday afternoon and evening so we have made the adjustments to the forecast.

Temperatures on Sunday will be warm with 40s in the Sierra and 50s in the western Nevada valleys. We may need to lower temperatures on Sunday even more, as the latest GFS has Reno in the 40s on Sunday. Strong winds are likely ahead of the front on Sunday, with gusts up to 35-45 mph in the valleys and Sierra ridge gusts up to 80 mph. Behind the front, temperatures will drop quickly below freezing with potential for slick roads through Sunday night and into Monday morning, including for the Reno-Carson-Tahoe region.

Brisk and cold conditions are expected for Monday and Tuesday with highs only in the 30s and low 40s. A few lingering showers may continue into Monday morning, but overall looking dry behind the front with cold north winds.

A strong upper level ridge starts to build over the West Coast Wednesday and Thursday of next week, blocking most of the weather from reaching CA/NV. Dry and warmer conditions will continue into next weekend as ensembles are showing good agreement in this upper ridge scenario remaining in place through mid February. -Hoon

AVIATION.

Multiple pilot reports of turbulence and low level wind shear this morning as winds increased across the Sierra and western Nevada. Breezy winds are ongoing as a weak system pushes through the region today. Peak gusts 20-30 kts should begin to drop off later this evening. Mountain wave turbulence and localized LLWS will remain a concern overnight.

While VFR conditions are forecast for all areas on Wednesday, there still may be concerns for turbulence as east to northeast ridge winds increase through the day with wind gusts 60 to 70 kts possible. -Edan

REV Watches/Warnings/Advisories. NV . None. CA . None.

For more information from the National Weather Service visit . http://weather.gov/reno


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
South Lake Tahoe, Lake Tahoe Airport, CA7 mi55 minN 010.00 miFair33°F21°F64%1023.8 hPa

Link to 5 minute data for KTVL

Wind History from TVL (wind in knots)
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1 day agoCalmS4CalmCalmCalmCalmSE8S3CalmSW4S4CalmCalmCalmS73CalmCalmS9
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Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Tue -- 04:52 AM PST     0.03 feet Low Tide
Tue -- 07:15 AM PST     Sunrise
Tue -- 09:37 AM PST     Moonrise
Tue -- 10:01 AM PST     2.63 feet High Tide
Tue -- 04:58 PM PST     0.75 feet Low Tide
Tue -- 05:23 PM PST     Sunset
Tue -- 08:48 PM PST     2.69 feet High Tide
Tue -- 09:10 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.71.10.70.30.100.31.11.82.42.62.52.21.81.41.10.80.71.11.82.52.72.62.3

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Tue -- 03:22 AM PST     0.03 feet Low Tide
Tue -- 07:14 AM PST     Sunrise
Tue -- 08:52 AM PST     2.63 feet High Tide
Tue -- 09:37 AM PST     Moonrise
Tue -- 03:28 PM PST     0.75 feet Low Tide
Tue -- 05:23 PM PST     Sunset
Tue -- 07:39 PM PST     2.69 feet High Tide
Tue -- 09:10 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.50.200.10.61.322.52.62.52.11.71.30.90.80.81.32.12.62.72.52.21.8

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Reno, NV (21,6,7,8)
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Ground Weather Radar Station Reno, NV
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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.