Tuesday, January21, 2020
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Marine Weather and Tides
Monterey, 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 7:15AMSunset 5:22PM Tuesday January 21, 2020 12:35 AM PST (08:35 UTC) Moonrise 4:36AMMoonset 2:37PM Illumination 15% Phase: Waning Crescent; Moon at 26 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- 810 Pm Pst Mon Jan 20 2020
Tonight..S winds 5 to 15 kt, becoming southeast 5 to 10 kt after midnight. Wind waves 1 ft. W swell 6 to 8 ft at 18 seconds. A slight chance of showers after midnight.
Tue..SE winds 5 to 15 kt. Wind waves 2 to 3 ft. W swell 6 to 8 ft at 16 seconds. Showers likely.
Tue night..S winds 10 to 20 kt. Wind waves 1 to 2 ft. W swell 7 to 9 ft at 16 seconds. Showers likely.
Wed..W winds 5 to 10 kt. Wind waves 1 ft. W swell 7 to 9 ft at 15 seconds.
Wed night..SE winds 5 to 10 kt. Wind waves 1 ft. W swell 6 to 8 ft at 13 seconds.
Thu..NW winds 5 to 15 kt. Wind waves 1 ft. W swell 4 to 6 ft at 12 seconds.
Thu night..N winds 5 to 10 kt. Wind waves 1 ft. W swell 3 to 5 ft at 11 seconds and W up to 2 ft at 21 seconds.
Fri..N winds up to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft and nw 2 to 4 ft.
Sat..NW winds 5 to 10 kt. Wind waves 1 ft. W swell 6 to 8 ft. A chance of rain. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 810 Pm Pst Mon Jan 20 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Southerly winds will gradually increase tonight ahead of an approaching cold front that will push through the coastal waters on Tuesday. A longer period northwest swell will also begin to build over the waters tonight before peaking midweek. This will generate hazardous seas conditions for smaller vessels. Another long period northwest swell will then arrive late week.


7 Day Forecast for Marine Location Near Monterey, CA
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location: 36.59, -121.89     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 210621 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1021 PM PST Mon Jan 20 2020

SYNOPSIS. Rain chances will increase from north to south late tonight into Tuesday as a weak cold front moves across northern California. Rainfall amounts will be light to locally moderate with no significant impacts expected. Mostly dry and warmer conditions are then expected for the remainder of the week, with rain likely to return next weekend.

DISCUSSION. as of 09:02 PM PST Monday . A low centered well off the coast of Baja California tapped into some subtropical moisture and brought light rainfall mainly south of the Bay Area this afternoon. The precipitation was not resolved well by most of the models and many of our southern locations, especially around Monterey and San Benito Counties, received measurable rainfall. In these areas several hundredths were common with up to 0.12 inches at Pinyon Peak in the Santa Lucia Mountains. Showers have cleared our area and the weather is expected to remain dry overnight ahead of an approaching cold front.

The cold front will move into the North Bay on Tuesday morning gradually shift south through the Bay Area and Central Coast during the afternoon and evening. The front will weaken as it progresses, so heavy rainfall is not expected and rainfall amounts will be highest across the north. Showers will end from north to south, with a chance of showers continuing through Tuesday night across the Central Coast as the front stalls and a weak secondary impulse approaches the coast. Rainfall totals of 0.25"-0.75" will be common across the North Bay, with 0.75"-1.50" over the North Bay coastal mountains. Elsewhere, rainfall amounts will generally be 0.25" or less, except for the Santa Cruz Mountains where up to 0.50"-0.75" will fall. Made some minor adjustments to PoPs tomorrow but otherwise forecast remains on track.

South to southeast winds will be breezy and locally gusty ahead of the front along the coast and hills through the day on Tuesday, but will not be strong enough to warrant advisories. Temperatures behind the front will not change much, with middle to upper 50s common throughout the district. Dry conditions and warmer temperatures are forecast Wednesday through the end of the work week as a ridge of high pressure builds overhead. High temperatures are forecast to warm into the lower to middle 60s Thursday through Saturday, while lows remain mostly in the 40s. The next good chance of rain will return over the weekend, as most of the ECMWF/GFS ensemble members depict wet weather late Saturday into Sunday. This system is likely to bring widespread rain, but unlikely to be strong enough to bring flooding or other significant impacts.

AVIATION. as of 10:21 PM PST Monday . For 06z TAFs it's VFR except local IFR visibilities developing due to fog are possible under a clearing sky; metar observations at Napa and Byron report lowering visibilities in fog/mist. Wet weather with lowering ceilings and visibilities develops Tuesday and Tuesday night as a cold front approaches from the west.

Vicinity of KSFO . VFR borderline MVFR ceilings. VFR forecast for tonight with light rain developing Tuesday then a few lingering showers Tuesday night.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR-MVFR. Light SE winds tonight and Tuesday morning. Light rain mid to late Tuesday afternoon and evening.

MARINE. as of 8:10 PM PST Monday . Southerly winds will gradually increase tonight ahead of an approaching cold front that will push through the coastal waters on Tuesday. A longer period northwest swell will also begin to build over the waters tonight before peaking midweek. This will generate hazardous seas conditions for smaller vessels. Another long period northwest swell will then arrive late week.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Reyes to Pigeon Pt 0-10 nm 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: ST AVIATION: Canepa MARINE: RGass

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MEYC1 1 mi60 min 55°F1019.4 hPa
46240 - Cabrillo Point, Monterey Bay, CA (158) 3 mi36 min 55°F4 ft
46092 - MBM1 13 mi79 min SSW 12 54°F 54°F1018.2 hPa (+1.2)
MLSC1 - Moss Landing, South Harbor, CA 16 mi44 min S 1.9 G 6 44°F 1019.8 hPa (+1.0)43°F
ELXC1 - Elkhorn Slough Reserve, CA 18 mi111 min Calm 46°F 1021 hPa45°F
46239 - Point Sur, CA (157) 20 mi36 min 55°F11 ft
46114 - West Monterey Bay, CA 26 mi36 min 55°F10 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 30 mi36 min SSW 9.7 G 14 54°F 55°F1019.2 hPa50°F

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Monterey Regional Airport, CA3 mi42 minESE 710.00 miPartly Cloudy47°F43°F86%1020.5 hPa
Salinas, Salinas Municipal Airport, CA16 mi43 minNW 38.00 miFair44°F41°F89%1020.1 hPa

Link to 5 minute data for KMRY

Wind History from MRY (wind in knots)
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Last 24hrSE4SE4E43E4SE5E6W4CalmS4CalmSE3E3E3CalmCalmW4SW3SE5CalmSE3CalmCalmSE7
1 day agoE3CalmSE3SE4SE4SE3SE3SE3E4W3CalmNW3W5CalmCalmCalmCalmCalmSE6E5SE5SW3SE6S3
2 days agoSE4CalmCalmCalmCalmE4E3CalmCalmCalmNE55E6NE7NE7--CalmCalmCalmCalmCalmCalmCalmSE6

Tide / Current Tables for Monterey, Monterey Harbor, California
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Monterey
Click for Map
Tue -- 12:51 AM PST     2.59 feet Low Tide
Tue -- 04:36 AM PST     Moonrise
Tue -- 07:14 AM PST     6.16 feet High Tide
Tue -- 07:16 AM PST     Sunrise
Tue -- 02:37 PM PST     Moonset
Tue -- 02:47 PM PST     -0.71 feet Low Tide
Tue -- 05:21 PM PST     Sunset
Tue -- 09:35 PM PST     3.83 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.72.62.83.44.25.15.86.165.34.22.81.40.2-0.5-0.7-0.30.51.52.63.33.83.83.5

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Tue -- 12:18 AM PST     -0.39 knots Max Ebb
Tue -- 03:23 AM PST     0.00 knots Slack
Tue -- 04:37 AM PST     Moonrise
Tue -- 06:18 AM PST     0.55 knots Max Flood
Tue -- 07:16 AM PST     Sunrise
Tue -- 09:04 AM PST     -0.00 knots Slack
Tue -- 12:29 PM PST     -0.96 knots Max Ebb
Tue -- 02:38 PM PST     Moonset
Tue -- 04:30 PM PST     0.00 knots Slack
Tue -- 05:21 PM PST     Sunset
Tue -- 07:42 PM PST     0.76 knots Max Flood
Tue -- 10:51 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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-0.4-0.4-0.3-0.10.20.40.50.50.30-0.4-0.8-0.9-0.9-0.8-0.6-0.20.20.50.70.80.60.3-0

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
Wind Forecast for San Francisco/Monterey Bay Area, CA (3,6,7,8)
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Ground Weather Radar Station San Francisco Bay Area, 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.