Sunday, January26, 2020
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Marine Weather and Tides
Las Lomas, 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 7:12AMSunset 5:26PM Sunday January 26, 2020 2:10 PM PST (22:10 UTC) Moonrise 8:37AMMoonset 7:19PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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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PZZ535 Monterey Bay- 836 Am Pst Sun Jan 26 2020
Today..W winds 5 to 10 kt, becoming nw 10 to 20 kt with gusts up to 25 kt this afternoon. Wind waves 1 ft, increasing to 3 to 4 ft this afternoon. W swell 4 to 6 ft at 21 seconds and W 2 to 4 ft at 20 seconds, decreasing to 2 to 3 ft at 21 seconds and W 5 to 7 ft at 18 seconds this afternoon. A chance of rain this morning.
Tonight..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft at 20 seconds and W 6 to 8 ft at 16 seconds.
Mon..SW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 7 to 9 ft at 17 seconds.
Mon night..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 7 to 9 ft at 16 seconds.
Tue..W winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 7 to 9 ft at 15 seconds.
Tue night..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 7 to 9 ft at 14 seconds.
Wed..N winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 6 to 8 ft.
Thu..N winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 5 to 7 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 836 Am Pst Sun Jan 26 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Locally breezy northwest winds expected today behind the weak frontal boundary that moved through this morning. The strongest winds will be along the big sur coast tonight into Monday. A long period west to northwest swell is arriving today as well. An additional long period northwest swell will arrive by early next week.


7 Day Forecast for Marine Location Near Las Lomas, CA
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location: 36.86, -121.76     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 262135 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 135 PM PST Sun Jan 26 2020

SYNOPSIS. Skies are beginning to clear Sunday afternoon now that the cold front has moved east. Partly cloudy skies with dry conditions will remain Sunday and Monday, though patchy fog is possible on Monday morning. The next chance for light rain looks to be Monday evening into Tuesday morning. However, the rain should be light and be north of the Golden Gate. After that, dry air will dominate and a warming trend will continue through Saturday.

DISCUSSION. as of 01:33 PM PST Sunday . The Bay Area is seeing skies begin to clear behind the cold front. However, there are a few locations south of San Jose that are still receiving spotty light drizzle. Precipitation should end this afternoon as clearer skies and dry air moves in. Cooler temperatures can be expected overnight. A few isolated valleys in the North Bay, East Bay and Southern Monterey county my drop below 40, but nothing near freezing. With plenty of moisture in the area and cooler temperatures, patchy fog in traditional low lying areas is possible Monday morning. Some isolated patchy frost might be possible as well.

A weak upper level ridge builds Sunday and into Monday providing drier conditions. Quickly following on Monday evening, a weak short wave trough moves over the Bay Area and travels eastward on Tuesday. This system will provide the lift necessary for another round of precipitation. Models have represented it as much weaker than this weekends short wave, so lower accumulations are expected. Additionally, it does not appear to be a deep trough; therefore, it is only forecast to bring precipitation north of the Golden Gate at this time.

By Wednesday, a deep upper level ridge grows over the Bay Area as high pressure builds over the southeastern Pacific Ocean. The increasing amount of subsidence will provide drier conditions around the region and allow for a small warming trend for temperatures through Saturday. Sunday and Monday next week looks to be the next pattern shift as models are showing the next trough to appear. It is still to far in time to say it will be completely dry, but it does look like cold air advection will be associated with it which can drive cooler, if not colder, temperatures to the region.

AVIATION. as of 9:47 AM PST Sunday . For 18Z TAFs. A weak cool front moved across the Bay Area this morning. Behind this front, winds will shift westerly and clouds will gradually decrease. Mostly clear skies expected by Monday morning.

Vicinity of KSFO . MVFR cigs becoming VFR by 21Z. Winds will be westerly 12 knots or less. VFR overnight.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . IFR cigs until 20Z or so. Light west winds. MVFR overnight with cigs and patchy fog.

MARINE. as of 01:33 PM PST Sunday . Locally breezy northwest winds expected today behind the weak frontal boundary that moved through this morning. The strongest winds will be along the Big Sur coast tonight into Monday. A long period west to northwest swell is arriving today as well. An additional long period northwest swell will arrive by early next week.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Arena to Pt Reyes 0-10 nm from 3 AM SCA . Pigeon Pt to Pt Pinos 0-10 nm from 3 AM SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm



PUBLIC FORECAST: DK AVIATION: Sims MARINE: Sims

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ELXC1 - Elkhorn Slough Reserve, CA 3 mi86 min W 8 58°F 1024 hPa57°F
46092 - MBM1 16 mi54 min WNW 12 56°F 56°F1024.5 hPa (+0.0)
46240 - Cabrillo Point, Monterey Bay, CA (158) 18 mi41 min 56°F3 ft
MEYC1 19 mi95 min 56°F1025.2 hPa
46114 - West Monterey Bay, CA 33 mi41 min 56°F8 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 34 mi41 min NW 9.7 G 14 56°F 56°F1025.1 hPa53°F
46239 - Point Sur, CA (157) 40 mi41 min 56°F9 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA6 mi78 minSSW 310.00 miA Few Clouds62°F55°F80%1024.3 hPa
Salinas, Salinas Municipal Airport, CA16 mi78 minWNW 910.00 miOvercast60°F54°F80%1025.4 hPa
Monterey Regional Airport, CA19 mi77 minNW 810.00 miOvercast59°F55°F87%1026.3 hPa
Hollister, CA, CA19 mi71 minW 910.00 miPartly Cloudy63°F55°F77%1024.4 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
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Last 24hrW6W7W5CalmS5S3SE3S4CalmCalmCalmCalmCalmCalmCalmCalmNW3CalmCalmW53SW6SW3NE8
1 day agoW6SW3S4CalmSW4N3N3CalmNW4N5NW3N4CalmN3CalmCalmCalmNW4E3E3CalmSW6SW5Calm
2 days agoW5W3W4E3CalmNE3NW3CalmE4N3N4NW3NE3CalmN3CalmNW3CalmCalm33CalmCalmCalm

Tide / Current Tables for Elkhorn Slough railroad bridge, California
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Elkhorn Slough railroad bridge
Click for Map
Sun -- 12:42 AM PST     4.66 feet High Tide
Sun -- 05:23 AM PST     2.65 feet Low Tide
Sun -- 07:13 AM PST     Sunrise
Sun -- 08:36 AM PST     Moonrise
Sun -- 11:20 AM PST     5.52 feet High Tide
Sun -- 05:25 PM PST     Sunset
Sun -- 05:57 PM PST     -0.33 feet Low Tide
Sun -- 07:18 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.54.64.33.632.72.73.13.84.55.15.55.44.73.52.10.8-0-0.3-0.10.61.62.63.6

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Sun -- 01:43 AM PST     -0.00 knots Slack
Sun -- 03:57 AM PST     -0.44 knots Max Ebb
Sun -- 07:13 AM PST     0.00 knots Slack
Sun -- 07:13 AM PST     Sunrise
Sun -- 08:36 AM PST     Moonrise
Sun -- 09:59 AM PST     0.51 knots Max Flood
Sun -- 12:47 PM PST     -0.00 knots Slack
Sun -- 04:02 PM PST     -0.90 knots Max Ebb
Sun -- 05:26 PM PST     Sunset
Sun -- 07:20 PM PST     Moonset
Sun -- 08:02 PM PST     0.00 knots Slack
Sun -- 11:02 PM PST     0.68 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.3-0.1-0.4-0.4-0.4-0.2-0.10.20.40.50.40.2-0.1-0.5-0.8-0.9-0.8-0.6-0.4-00.30.60.7

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (17,4,5,8)
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Ground Weather Radar Station San Francisco Bay Area, CA
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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.