Tuesday, September29, 2020
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Marine Weather and Tides
Magalia, 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 6:59AMSunset 6:54PM Monday September 28, 2020 9:44 PM PDT (04:44 UTC) Moonrise 4:56PMMoonset 2:43AM Illumination 90% 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
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7 Day Forecast for Marine Location Near Magalia, CA
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location: 39.77, -121.63     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 282141 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 241 PM PDT Mon Sep 28 2020

SYNOPSIS. Critical fire weather conditions continue through this evening due to dry weather and breezy winds. Above normal temperatures and dry conditions continue through much of the week, although smoke may make a return due to new wildfire starts.

DISCUSSION. Gusty winds continue this afternoon with the western side of the Valley seeing some gusts up to 25 mph and the eastern foothills seeing gusts from 20-35 mph (with the strongest gust noted at Jarbo Gap at 49 mph early this afternoon). These winds are expected to decrease later this evening, although some locally breezy winds will continue across the eastern foothills through the early morning hours. With the extremely dry conditions and gusty winds, critical fire weather conditions and the Red Flag Warning will persist through the evening.

A high amplitude ridge will remain over the West Coast through the week bringing above average temperatures to much of the Valley and surrounding foothills. Highs each afternoon are forecast to be roughly 10-15 degrees above normal for late September/early October. Areas of moderate heat risk are expected each afternoon though Thursday. The one hindrance could be the return of wildfire smoke due to onshore winds returning and new wildfires across the area. HRRRx guidance supports the return of smoke and haze in the Valley which, if dense, may bring high temperatures down a few degrees or more.

EXTENDED DISCUSSION (Friday THROUGH Monday). Dry weather and a cooling trend are expected Friday into the weekend. Upper ridging overhead Friday slowly weakens through the weekend as mesoscale offshore upper low approaches California Sunday and lingers along the coast early next week. Friday looks to be the warmest day with Valley highs still in the mid to upper 90s, cooling to the low 90s and upper 80s Saturday and Sunday. Mountain highs generally remain in the 70s. With some new wildfires early in the week, highs may be impacted by any local dense smoke.

AVIATION. VFR conds ovr intr NorCal nxt 24 hrs exc lcl MVFR conds in HZ/FU poss vcnty of wild fires. Nly sfc gsts up to 30 kts poss in Cntrl Vly mnly N of KSMF tda til abt 02z. Lcl of N-E sfc wnd gsts up to 30 kts poss in fthls/mtns, mnly I-80 N, til 06z Tue.

STO WATCHES/WARNINGS/ADVISORIES. Red Flag Warning until 9 PM PDT this evening for Carquinez Strait and Delta-Central Sacramento Valley in Glenn, Colusa, Yuba, Northern Sutter, and Butte County Below 1000 Ft-Eastern Mendocino NF-Eastern Portion of Shasta/Trinity NF-Northern Motherlode From 1000 to 3000 Ft. Includes portions of Nevada- Yuba-Placer-Amador and ElDorado Units-Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft-Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft-Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions of Shasta-Trinity and Butte Units-Northern Sierra Including Lassen NP and Plumas and Lassen NF/S West of the Sierra Crest (West of Evans Peak-Grizzly Peak-Beckworth Peak)- Northern Sierra Including the Tahoe and ElDorado NF/S West of the Sierra Crest-Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-Glenn Unit-Southern Motherlode From 1000 to 3000 Ft. Includes portions of Calaveras-Tuolumne Unit-Southern Sacramento Valley in Yolo-Sacramento Far Western Placer, southern Sutter and Solano County Below 1000 Ft-Stanislaus NF West of the Sierra Crest.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chico Municipal Airport, CA12 mi49 minESE 610.00 miOvercast90°F26°F10%1011.8 hPa
Oroville Municipal Airport, CA19 mi51 minSE 310.00 miFair84°F35°F17%1011.9 hPa

Link to 5 minute data for KCIC

Wind History from CIC (wind in knots)
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Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
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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.

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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
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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.

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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
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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Beal AFB, CA
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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.