Friday, April10, 2020
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Marine Weather and Tides
Topaz, 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 6:28AMSunset 7:34PM Friday April 10, 2020 11:33 AM PDT (18:33 UTC) Moonrise 11:00PMMoonset 8:25AM Illumination 91% 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 Topaz, CA
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location: 38.67, -119.53     debug


Area Discussion for - Reno, NV
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FXUS65 KREV 101020 AFDREV

Area Forecast Discussion National Weather Service Reno NV 302 AM PDT Fri Apr 10 2020

SYNOPSIS.

High pressure will build in from the north this weekend with drier and warmer conditions expected. Highs will warm into the lower 70s across western Nevada valleys by Saturday afternoon, but highs will cool back down to near average by Easter Sunday as a cold front sweeps through the region. Temperatures look to warm again next week as high pressure returns.

DISCUSSION.

Most residual shower activity associated with a cutoff low that has been meandering across the region since last weekend has dissipated this morning. Decreasing winds and clouds have allowed some localized areas of fog and low clouds to develop across western Nevada valleys this morning including Fallon and Lovelock with visibility around 1/4 mile being reported.

For today, the upper low will finally eject eastward as it gets picked up by a shortwave trough across the Pacific Northwest. This will allow upper level ridging to build as we head into the weekend with warming temperatures and drier conditions developing.

The ridge will build from north to south today with high temperatures near 70 possible across lower valleys of Lassen County and into the Surprise valley. Farther south, highs should reach into the mid-60s across western Nevada with 50s and upper 40s across northern and southern Sierra valleys respectively. Saturday will be the warmest day this weekend with highs about 10 degrees above average with lower 70s expected across western Nevada and upper 50s/low 60s across Sierra valleys.

An approaching back door cold front dropping in from the north will strengthen north winds by Saturday afternoon with some choppy conditions possible on Pyramid Lake. Behind the front, temperatures will cool back down to near season averages by Easter Sunday. There is a slight chance for a few mountain snow showers as well but no signals this would be anything significant. Fuentes

LONG TERM. Sunday through next week .

An elongated high pressure is forecast to build into the eastern Pacific next week. Lingering northerly flow behind this weekend's cold front will keep temperatures from rising too rapidly. Temperatures will start the week right around average, with mid 60s in the valleys and mid 50s in the Sierra. By the end of the week we'll likely see low to mid 70s in western Nevada with mid 60s in the Sierra.

Mostly dry conditions are expected throughout the week, but by the end of the week and into next weekend, the possibilities begin to increase that a cutoff area of low pressure moves into the region bringing more spring showers. -Zach

AVIATION.

Low pressure spinning through southern California will keep a few remnant stratus around the Sierra this morning with possible mountain obscuration along with some ground fog at KTRK. Otherwise, clearing and VFR flying conditions can be expected today.

A mostly dry cold front is expected to move into Nevada from the north. This will create breezy surface winds in the west-central Nevada along with increasing clouds and a possible stray shower. -Zach

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, CA30 mi40 minN 010.00 miFair42°F28°F60%1017 hPa

Link to 5 minute data for KTVL

Wind History from TVL (wind in knots)
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Last 24hr3--6N8N7NE10CalmCalm3CalmN4S3W3S4CalmS4S4S3S3CalmS6S3SE5Calm
1 day agoN8
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CalmN66NW3CalmCalmCalm3453Calm4N3NE5CalmCalmN7
2 days agoN5--N10Calm5NE8NE6CalmCalmCalm3Calm3SE33Calm3Calm534N44SE7

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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
Wind Forecast for Reno, NV (14,3,4,5)
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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.