Sunday, January17, 2021
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Marine Weather and Tides
Salida, 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 7:15AMSunset 5:13PM Sunday January 17, 2021 1:29 AM PST (09:29 UTC) Moonrise 10:22AMMoonset 10:03PM Illumination 16% Phase: Waxing Crescent; Moon at 4 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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PZZ531 San Francisco Bay South Of The Bay Bridge- 829 Pm Pst Sat Jan 16 2021
Tonight..NW winds up to 10 kt.
Sun..NW winds up to 10 kt.
Sun night..W winds up to 10 kt.
Martin luther king jr day..N winds 15 to 25 kt with gusts up to 35 kt.
Mon night..N winds 20 to 30 kt with gusts up to 45 kt.
Tue..N winds 30 to 40 kt with gusts up to 50 kt.
Tue night..NE winds 5 to 15 kt.
Wed..N winds around 5 kt.
Thu..NW winds 5 to 10 kt.
PZZ500 829 Pm Pst Sat Jan 16 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Increasing northwest winds through the night. As seas and breezy winds combine for hazardous seas conditions, particularly for smaller vessels. Winds will shift more northerly tomorrow to tomorrow night and increase as offshore winds pick up over land. These stronger winds will then continue into early next week with gale force conditions likely. The next large, long period northwest swell will arrive Sunday.


7 Day Forecast for Marine Location Near Salida, CA
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location: 37.7, -121.04     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 162218 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 218 PM PST Sat Jan 16 2021

SYNOPSIS. Continued above normal temperatures and dry conditions are forecast to prevail this weekend. Strong winds possible early next week. Chance for mountain showers by next weekend.

DISCUSSION. High pressure continues to dominate the forecast today leaving most of northern California with clear skies and above normal temperatures. Valley sites currently span the mid 60s to the mid 70s, with the warmest temperatures being observed in the northern Sacramento Valley and Delta region. Sacramento Executive Airport (SAC), Downtown Sacramento (DTS), and Stockton (SCK) have a decent shot at tying or breaking their records. SAC and SCK's records are 69 degrees and DTS's record is 71, all of which were set in 2014. The Sacramento sites have 68% chance of exceeding 71 degrees. Modesto will struggle a bit to break their record, 69 degrees in 2014, but there is a 65% chance of tying it. Farther north, in Redding and Red Bluff's areas, their records are 80 degrees set back in 2014, which will be tougher to tie or break.

Tonight, guidance suggests the chance for some patchy fog in the from the Sacramento area down into the northern San Joaquin Valley. Otherwise, expect partly to mostly clear skies with overnight low temperatures forecast to be roughly 5 to 15 degrees above normal. Tomorrow, the ridge will continue to hold, thus we're expecting similar weather and high temperatures. Late Sunday into Monday, we'll see start to see major pattern change unfold. Ensemble and model guidance show a predominately moisture- starved shortwave quickly digging south from the Pacific Northwest and then traveling down the California coast. Models and ensembles then favor the trough digging to southern California about 12 hours later; with a secondary system sliding down the CA/NV border. Offshore surface pressure gradients will develop with this synoptic setup, resulting in periods of strong, potentially damaging north to east winds. The High Wind Watch remains in effect from Sunday night and continues through the day on Tuesday. Valley sustained winds of 25 to 35 mph with gusts 40 to 50 mph are possible, particularly along the west-side and in the Delta region. Even stronger winds are possible in the Sierra with gusts of 50 to 65 mph, local gusts of 75+ mph in the exposed peaks and ridgetops. High resolution models just starting to capture the onset of this wind event, and will keep a close eye as these models better- capture the duration of the event. Stay tuned for additional details. // Rowe/KR

EXTENDED DISCUSSION (Wednesday THROUGH Saturday).

Forecast remains on track for the extended period. Ensemble guidance, including the 500mb cluster data, agrees with the EPAC ridge nosing into northern California on Wednesday. This will cause the trough to dig farther south, leading to lighter winds and mild high temperatures through Thursday. Friday into Saturday, ensemble guidance favors a trough digging into the region and brings more seasonal weather to the region. It may also bring light precipitation to the mountains and foothills, with the southern Cascades and Sierra being favored. NBM guidance highlights these areas well, thus kept it in for PoP guidance.

AVIATION.

VFR conditions remain thru this evening before areas of BR/FG form between 07-09Z south of KMYV. Surface winds are generally below 12 knots for the next 24 hours.

STO WATCHES/WARNINGS/ADVISORIES. High Wind Watch from late Sunday night through Tuesday evening for Carquinez Strait and Delta-Central Sacramento Valley- Motherlode-Mountains Southwestern Shasta County to Western Colusa County-Northeast Foothills/Sacramento Valley-Northern Sacramento Valley-Northern San Joaquin Valley-Shasta Lake Area / Northern Shasta County-Southern Sacramento Valley-West Slope Northern Sierra Nevada-Western Plumas County/Lassen Park.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCOC1 - 9415144 - Port Chicago, CA 58 mi60 min S 4.1 G 5.1 55°F 52°F1019.9 hPa
SFXC1 - San Francisco Bay Reserve, CA 63 mi105 min Calm 48°F 1020 hPa47°F
RTYC1 - 9414523 - Redwood City, CA 64 mi60 min SSW 1 G 1.9 51°F 56°F1020.7 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Modesto City-County Airport - Harry Sham Field, CA7 mi37 minESE 32.50 miFog/Mist46°F44°F93%1019.6 hPa
Stockton, Stockton Metropolitan Airport, CA18 mi35 minN 02.50 miFog/Mist50°F46°F86%1019.6 hPa

Link to 5 minute data for KMOD

Wind History from MOD (wind in knots)
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Last 24hrNW6N4CalmCalmCalmE3E4E4E4E3E5SE3CalmE4E6E4E3CalmE3CalmCalmE3E3E3
1 day agoCalmCalmSE3SE5CalmCalmSE5SE5E44NW3NW4N3W6W7NW7NW9NW9NW6NW6W8NW6NW5NW8
2 days agoNW8W6NW5E4CalmNE5NE4E5CalmCalmCalmNE3CalmW4NW4CalmCalmCalmCalmCalmCalmE5E3E5

Tide / Current Tables for Grant Line Canal (drawbridge), Old River, California
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Grant Line Canal (drawbridge)
Click for Map
Sun -- 05:23 AM PST     -0.09 feet Low Tide
Sun -- 07:19 AM PST     Sunrise
Sun -- 10:23 AM PST     Moonrise
Sun -- 11:53 AM PST     3.36 feet High Tide
Sun -- 05:13 PM PST     Sunset
Sun -- 05:35 PM PST     1.17 feet Low Tide
Sun -- 10:04 PM PST     Moonset
Sun -- 10:46 PM PST     3.28 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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32.21.40.70.2-0.1-00.51.222.73.23.43.12.621.51.21.21.52.22.83.23.3

Tide / Current Tables for Brandt Bridge, San Joaquin River, California Current
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Brandt Bridge
Click for Map
Sun -- 02:11 AM PST     -1.18 knots Max Ebb
Sun -- 06:17 AM PST     0.00 knots Slack
Sun -- 07:18 AM PST     Sunrise
Sun -- 09:16 AM PST     0.63 knots Max Flood
Sun -- 10:23 AM PST     Moonrise
Sun -- 12:07 PM PST     -0.00 knots Slack
Sun -- 03:18 PM PST     -0.60 knots Max Ebb
Sun -- 05:12 PM PST     Sunset
Sun -- 06:10 PM PST     0.00 knots Slack
Sun -- 08:30 PM PST     0.51 knots Max Flood
Sun -- 10:04 PM PST     Moonset
Sun -- 10:57 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.8-1.1-1.2-1.1-0.9-0.6-0.10.30.50.60.60.40-0.3-0.5-0.6-0.6-0.4-0.10.30.50.50.3-0

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




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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.