Monday, March1, 2021
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Marine Weather and Tides
Kirkwood, 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 6:30AMSunset 5:54PM Monday March 1, 2021 5:59 PM PST (01:59 UTC) Moonrise 8:55PMMoonset 8:11AM Illumination 88% Phase: Waning Gibbous; Moon at 18 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 012239 AFDREV

Area Forecast Discussion National Weather Service Reno NV 239 PM PST Mon Mar 1 2021

SYNOPSIS.

Above average high temperatures will prevail this week. It will be dry except for a chance for light snow showers Wednesday afternoon and evening in Mono County as low pressure pushes across southern Nevada. The next chance for mountain snow and valley rain or rain and snow arrives over the weekend; however, a major storm is unlikely.

SHORT TERM.

Speaking from the point of view of this forecaster, there isn't much to get jazzed up about in the short term. High temperatures will be near average (eastern Sierra) to around 5 degrees above average (northeast CA and western NV) Tuesday and Wednesday. After sunny skies today, partly cloudy skies are on tap for Tuesday, giving way to widespread mostly cloudy conditions Wednesday as low pressure off the California coast moves across southern California and Nevada.

As far as precipitation, the low pressure is expected by most simulations to remain so far south that only a very light Sierra snowfall south of about Ebbetts Pass is expected at best for later on Wednesday. Blended probabilities for measurable snow are only 40-55% for the eastern Sierra, with less than a 20% chance for more than an inch. In addition, given the notable increase in daytime road heating (which would make any snow melt quickly on roads) this time of year, very light snowfall rates, and the fact that trans Sierra passes remain closed, little or no impact is expected for travel in Mono County Wednesday . especially along and east of Highway 395. -Snyder

LONG TERM (Thursday onward).

* Warm Temps Thursday and Friday: Respectable ridging over the Great Basin with light southwesterly flow overhead yields a pattern favorable for above normal temperatures. Latest NBM guidance showing highs well into the 60s for W Nevada cities and near 50 for mountain communities. 90th percentile guidance showing upper 60s for W Nevada if we can keep skies sunny with that little bit of southwest wind to mix things up. Nowhere near records, however, which are in the mid to upper 70s at RNO for example.

* Saturday Storm: Quick moving Pacific storm for Friday night through Saturday. Current NBM and ensemble guidance still quite variable so lower than average confidence on snow and wind potentials. Fast motion will limit precip amounts but still enough snow for mountain passes to create travel impacts at night or early morning. Donner Pass NBM guidance showing 2" most likely with 5-6" on the high end scenarios. Further south away from best dynamics Mammoth Mtn showing 1" with high-end of 3-4", so not a good snow for the eastern Sierra.

* For W Nevada mainly light rain showers with some rain/snow mix in the foothills and Virginia City. It looks somewhat shadowed. Winds will also ramp up for Saturday but lots of variability in ensemble scenarios, ranging from general breezes to about 1 in 4 members showing potential wind advisory scenario for W Nevada and 395 corridor. Official wind forecast kept more conservative for time being.

* Next Week: Pattern remains unsettled but the potential for storms is far from settled. Large scale trough redevelops off- shore but from the look of it there is decent potential of a split to our south limiting precip in our area. With that said GEFS and ECMWF EPS guidance is quite noisy for next week. Most members have something but timing is all over the place. Therefore, confidence is below normal even for this long lead time. In any event, not seeing major storm signals either for wind or precip so whatever we get next week is likely to not be a big help for the late season snowpack.

-Chris

AVIATION.

No significant aviation weather issues for the next 24-36 hours with upper low offshore diving well to our south leaving the region under shortwave ridging.

Low end gusty winds this afternoon will subside tonight. Plume of enhanced southerly winds aloft over northern and central California could yield some wind shear and mountain wave bumps for TRK/TVL areas tonight.

Light E/SE flow tomorrow with VFR conditions and scattered to occasionally broken high altitude clouds passing by on the northern perimeter of that upper low. Overall a pretty good week for flying in our area. -Chris

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 mi66 minSSW 510.00 miFair45°F16°F31%1019.4 hPa

Link to 5 minute data for KTVL

Wind History from TVL (wind in knots)
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Last 24hrCalmS4S3CalmS3CalmCalmS4CalmCalmS3S3CalmCalmS3CalmS8--SW8
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1 day agoNE6NE8CalmCalmCalmCalmNW3CalmSW53SW5S5CalmS5S3CalmNE4NE74444CalmCalm
2 days agoS7S7SW5S7CalmCalmCalmCalmCalmS3CalmCalmS3S3S3SE3443Calm53N76

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
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Mon -- 03:51 AM PST     -0.01 feet Low Tide
Mon -- 06:37 AM PST     Sunrise
Mon -- 08:17 AM PST     Moonset
Mon -- 08:34 AM PST     2.87 feet High Tide
Mon -- 04:13 PM PST     0.32 feet Low Tide
Mon -- 05:59 PM PST     Sunset
Mon -- 08:32 PM PST     2.94 feet High Tide
Mon -- 09:01 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.40.80.30.1-00.41.32.22.82.82.62.31.71.20.80.50.30.51.32.22.82.92.72.3

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
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Mon -- 02:21 AM PST     -0.01 feet Low Tide
Mon -- 06:37 AM PST     Sunrise
Mon -- 07:25 AM PST     2.87 feet High Tide
Mon -- 08:17 AM PST     Moonset
Mon -- 02:43 PM PST     0.32 feet Low Tide
Mon -- 05:59 PM PST     Sunset
Mon -- 07:23 PM PST     2.94 feet High Tide
Mon -- 09:01 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.200.10.71.62.42.82.82.62.11.610.60.40.30.71.62.42.92.92.62.21.6

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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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