Wednesday, March3, 2021
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Marine Weather and Tides
Carnelian Bay, CA

Version 3.4
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1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:28AMSunset 5:56PM Wednesday March 3, 2021 3:50 AM PST (11:50 UTC) Moonrise 11:22PMMoonset 9:13AM Illumination 77% Phase: Waning Gibbous; Moon at 19 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 Carnelian Bay, CA
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location: 39.22, -120.09     debug


Area Discussion for - Reno, NV
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FXUS65 KREV 031112 AFDREV

Area Forecast Discussion National Weather Service Reno NV 312 AM PST Wed Mar 3 2021

SYNOPSIS.

Mild temperatures will rise to well above average by Friday, with breezy conditions developing later this week. Other than a few snow showers later today in western Mono County, dry conditions will prevail through Friday evening. Cooler temperatures and chances for rain and snow return for the weekend, with a more active winter weather pattern possible for much of next week.

SHORT TERM. through Friday evening .

A weak closed low off the southern CA coast will eject quickly inland across the far southwest US today to near the Four Corners region by early Thursday. The main moisture with this system will remain confined to far southern CA, although a few late day snow showers could pop up near the Sierra Crest in Mono County and southern Alpine County. Most of the high resolution guidance look quite modest with these shower chances, indicating more activity initially west of the crest then pushing to the east side later in the afternoon before diminishing. While some mountain areas could see an inch or two of snowfall, the probability of measurable snow reaching the US-395 corridor remains slim (below 25 percent). A Special Weather Statement was issued yesterday for this light snow potential, and similar wording will be retained when we refresh this statement early this morning.

Widespread cloud cover and generally light winds will prevail across the remainder of eastern CA-western NV today, with mild temperatures mainly in the 50s to near 60 degrees.

For Thursday and Friday, south flow increases over the Sierra and western NV in between a ridge axis over the eastern Great Basin and a trough approaching the west coast. These increased winds and less overall cloud cover (until more cirrus returns Friday afternoon) will improve mixing and bring temperatures up farther into the 60s across most lower elevations/50s for Sierra valleys, with Friday being the warmer and windier day. Wind speeds don't look overly strong through Friday evening, with gusts mainly 25-35 mph and Sierra ridge gusts 60-70 mph. However, a further increase in winds will likely accompany the trough passage later Friday night. MJD

LONG TERM. Friday Night into next week .

After a mild start to March, we will start to see changes in the weather beginning with a quick appetizer type system late Friday night-early Saturday. Chances are increasing that this will be followed by a series of potentially colder/wetter systems for the first of half next week.

For the Friday night-Saturday system, not too much change in the forecast. Still shaping out to be a quick hitting shortwave which will likely drop about 3-5" of snow across the Sierra passes and mountains late Friday night into Saturday morning, with best potential for accumulations between midnight and daybreak. While not a big storm by any means, it still will likely create travel impacts for trans-Sierra travel early Saturday morning.

Confidence is moderate on its trajectory, but currently the best chance for these snow amounts is focused around the Tahoe Basin into northern Mono County. Snow levels look to begin about 5000-5500 feet at the onset and then lowering to around 4000 feet by Saturday morning. An inch or two of snowfall will be possible for mountain communities while western Nevada valleys remain largely shadowed with some light rain and snow showers possible Saturday morning. Gusty S-SW winds will accompany the snow by early Saturday morning, across the Sierra with breezy west winds prevailing across western Nevada Saturday afternoon. Temperatures will also see a good 10-15 degree drop over the mild conditions on Friday.

Looking beyond into early next week, there is increasing potential to see beneficial snowfall from a series of colder troughs aiming to push across the West through mid-week. Ensembles do favor this colder troughing pattern which will aid in chances for snowfall not only across the Sierra but potentially down into western Nevada valleys. However, being on the colder side, odds are it won't pack substantial amounts of moisture with it like an AR storm would. Nonetheless we'll take what we can get.

While each individual shortwave in itself won't be responsible for the bulk of the precipitation, the pattern overall looks to favor a 3-4 day period of waves containing modest moisture, with the potential for a few inches of liquid equivalent moisture across the Sierra during this period. This could translate into a few feet of snowfall in the mountains. While accumulation predictions are a bit on the preliminary side, confidence has increased for seeing several days of active weather and Sierra travel impacts next week. Fuentes

AVIATION.

VFR conditions will prevail through Friday. The only possible exception is KMMH where there is about a 25% chance of -SHSN within 5 miles of the terminal, but even if those showers occur they would likely produce only brief MVFR conditions between 23Z-03Z. South winds will begin to increase in higher elevations Thursday and Friday, with some of these winds mixing to the terminals. The main effect would mainly be increased turbulence, although the potential for LLWS may increase Friday night/early Saturday with a fast moving trough passage. MJD

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
Truckee-Tahoe, CA7 mi76 minN 010.00 miFair23°F19°F86%1012.2 hPa
Carson City Airport, NV19 mi56 minN 010.00 miFair28°F10°F47%1012.2 hPa
South Lake Tahoe, Lake Tahoe Airport, CA22 mi58 minN 010.00 miFair26°F19°F75%1009.8 hPa

Link to 5 minute data for KTRK

Wind History from TRK (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmN5NE5--NE4W5W5SE6CalmS3CalmCalmCalmCalmCalmS3Calm
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2 days agoCalmCalmCalmCalmCalmCalmCalmN4N5N7N7N6N5NE4CalmCalmCalmCalmCalmSW3CalmCalmCalmCalm

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
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Wed -- 05:00 AM PST     0.23 feet Low Tide
Wed -- 06:34 AM PST     Sunrise
Wed -- 09:19 AM PST     Moonset
Wed -- 09:38 AM PST     3.05 feet High Tide
Wed -- 06:01 PM PST     Sunset
Wed -- 06:03 PM PST     0.19 feet Low Tide
Wed -- 10:37 PM PST     2.42 feet High Tide
Wed -- 11:26 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.11.61.10.60.30.20.51.32.32.932.92.521.40.90.50.30.20.41.11.92.32.4

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Wed -- 03:30 AM PST     0.23 feet Low Tide
Wed -- 06:34 AM PST     Sunrise
Wed -- 08:29 AM PST     3.05 feet High Tide
Wed -- 09:19 AM PST     Moonset
Wed -- 04:33 PM PST     0.19 feet Low Tide
Wed -- 06:01 PM PST     Sunset
Wed -- 09:28 PM PST     2.42 feet High Tide
Wed -- 11:26 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.40.90.50.30.30.81.62.5332.82.41.81.30.80.40.20.20.61.322.42.42.2

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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