Tuesday, September29, 2020
Privacy Policy
L-36.com

Marine Weather and Tides
Truckee, 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 6:53AMSunset 6:48PM Monday September 28, 2020 10:10 PM PDT (05:10 UTC) Moonrise 4:50PMMoonset 2:38AM Illumination 91% Phase: Waxing Gibbous; Moon at 12 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
    EDIT      (on/off)   Help


7 Day Forecast for Marine Location Near Truckee, CA
   Hourly   EDIT   Help
location: 39.35, -120.19     debug


Area Discussion for - Reno, NV
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS65 KREV 282156 AFDREV

Area Forecast Discussion National Weather Service Reno NV 256 PM PDT Mon Sep 28 2020

SYNOPSIS.

Easterly winds will keep smoke out of eastern California and western Nevada through tonight. However, increased fire activity in northern California and a return to modest west winds are likely to bring a return of haze and areas of smoke Tuesday. High pressure over the region will produce warm afternoons, dry conditions, and mainly light winds Tuesday through the weekend.

DISCUSSION.

Remarkably steady-state conditions are expected Tuesday through the weekend as high pressure parks itself overhead. Afternoon temperatures near average today c/o light to moderate easterly winds will warm to 10-15 degrees above average for the balance of the week as the flow slackens and the ridge builds more directly overhead. Given light winds, mainly clear skies, and the inexorably lengthening fall nights, temperatures will fall substantially each night with morning temperatures bottoming out in the 30s and 40s for most valleys (exception: highly urbanized valley areas or those with minimal vegetation may only fall into the low to mid 50s after tonight).

Smoke remains a concern for Tuesday into Wednesday morning as flow briefly returns to westerly. HRRR smoke runs bring a substantial increase in smoke particles for higher elevations of the Sierra and far western NV by tomorrow morning as flow aloft turns to S-SW. During the afternoon and evening Tuesday, lower level westerly flow kicks in with the 18Z HRRR showing a major increase in particulates (and a decrease in air quality) for valleys of eastern CA and western NV as well as west-central NV near and south of Hwy 50. Smoke and haze are likely to settle into the valleys overnight into Wednesday as flow slackens. On Wednesday the flow, albeit light, returns to northeast and east in the afternoon which may stop additional smoke from working into the region. However, with light flow the remaining smoke may take awhile to thin out with air quality still a concern Wednesday morning. Note that uncertainties have kept smoke and haze out of the forecast beyond Tuesday evening; however, this does not mean there won't be any into Wednesday. -Snyder

Looking well beyond the 7-day forecast (October 8-15), long-term ensembles are showing some preliminary indications of Pacific moisture moving into the region around the October 10-15 timeframe as the blocking pattern looks to break down and allow zonal flow into northern California. In addition to the ridge breakdown, there are signs in ensembles for increased winds which makes sense given the tendency for zonal flow. -Snyder/Hoon

AVIATION.

VFR conditions prevail through tonight with sustained northeast-east winds around 10 kt this afternoon-early evening for most terminals. A shift to west-southwest winds tomorrow is forecast to bring haze and areas of smoke back to portions of eastern California and western Nevada. Most visibility reductions will be of the slantwise type, although KMMH could see low smoke layer ceilings and decreased surface visibility later tomorrow if the Creek Fire continues to show significant activity.

Mountain wave turbulence is likely along and west of the Sierra and southern Cascade crests as gusty northeast winds persist into late this afternoon. Light winds along with warm and dry conditions will prevail this week, with areas of haze possibly lingering through mid- late week. MJD/JCM

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

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


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Truckee-Tahoe, CA3 mi75 minSE 310.00 miFair54°F21°F28%1027.8 hPa
Reno, Reno Tahoe International Airport, NV24 mi75 minS 410.00 miFair62°F21°F21%1022.5 hPa

Link to 5 minute data for KTRK

Wind History from TRK (wind in knots)
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN10
G15
N7NE9--NW3S10
G14
N6--S6S5SW3CalmSE5
1 day agoCalmSE3CalmS3S3CalmS3CalmS3CalmCalmN5--N7SW4S13
G16
--S12
G17
S5S5W3CalmCalmCalm
2 days agoS3CalmCalmCalmCalmE4CalmCalmSW3CalmS3CalmN4--N6----N9
G14
W7W7NE7N6W3W3

Tide / Current Tables for Sacramento #4, Sacramento River, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Sacramento #4
Click for Map
Tue -- 01:33 AM PDT     0.51 feet Low Tide
Tue -- 04:45 AM PDT     Moonset
Tue -- 05:55 AM PDT     2.73 feet High Tide
Tue -- 07:00 AM PDT     Sunrise
Tue -- 02:18 PM PDT     -0.03 feet Low Tide
Tue -- 06:21 PM PDT     Moonrise
Tue -- 06:50 PM PDT     Sunset
Tue -- 07:01 PM PDT     2.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.80.50.61.11.92.52.72.62.31.91.40.90.50.2-00.10.81.72.42.82.62.31.91.4

Tide / Current Tables for Clarksburg #4, Sacramento River, California
   EDIT      (on/off)   Help   One Week of Data
Clarksburg #4
Click for Map
Tue -- 12:03 AM PDT     0.51 feet Low Tide
Tue -- 04:46 AM PDT     Moonset
Tue -- 04:46 AM PDT     2.73 feet High Tide
Tue -- 07:00 AM PDT     Sunrise
Tue -- 12:48 PM PDT     -0.03 feet Low Tide
Tue -- 05:52 PM PDT     2.76 feet High Tide
Tue -- 06:21 PM PDT     Moonrise
Tue -- 06:51 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.50.71.42.12.62.72.62.21.71.20.80.40.1-00.31.11.92.52.82.62.21.71.20.8

Weather Map
       (on/off)   Help Weather Map
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 Reno, NV
   (on/off)   Help
weather_mapweather_map weather_map


Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE.
. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply anyway. 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.