Wednesday, February26, 2020
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Marine Weather and Tides
Seaside, 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 6:40AMSunset 5:59PM Wednesday February 26, 2020 2:52 AM PST (10:52 UTC) Moonrise 8:32AMMoonset 8:56PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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- 822 Pm Pst Tue Feb 25 2020
Tonight..E winds up to 10 kt. Wind waves 1 ft. W swell 2 to 4 ft at 13 seconds. SWell S around 2 ft.
Wed..SW winds up to 10 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 12 seconds and S around 2 ft at 18 seconds.
Wed night..E winds around 5 kt. Wind waves 1 ft. W swell 2 to 4 ft at 13 seconds and S around 2 ft at 18 seconds.
Thu..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 4 to 6 ft at 18 seconds and S around 2 ft at 16 seconds.
Thu night..E winds up to 10 kt. Wind waves 1 ft. W swell 3 to 5 ft at 15 seconds and S around 2 ft at 15 seconds.
Fri..SW winds up to 10 kt. Wind waves 1 ft. W swell 4 to 6 ft at 14 seconds and S around 2 ft at 15 seconds.
Fri night..NW winds around 5 kt. Wind waves 1 ft. W swell 3 to 5 ft at 17 seconds and S around 2 ft at 14 seconds.
Sat..NW winds 5 to 15 kt. Wind waves 2 to 3 ft. NW swell 4 to 6 ft. A chance of rain.
Sun..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 4 to 6 ft. A chance of rain. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 822 Pm Pst Tue Feb 25 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds continue to subside but winds gusts will prevail for the outer waters north of point reyes through the overnight hours. A longer period northwest swell passes by midweek as winds weaken. Winds and seas will increase later this weekend as the next storm approaches from the pacific northwest.


7 Day Forecast for Marine Location Near Seaside, CA
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location: 36.65, -121.81     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 260553 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 953 PM PST Tue Feb 25 2020

SYNOPSIS. Unseasonably mild and dry conditions will persist over the region through the remainder of February. A weather system will approach from the northwest this upcoming weekend, bringing cooler temperatures and the potential for light precipitation.

DISCUSSION. as of 9:40 PM PST Tuesday . No significant updates this evening. Thin high clouds are rotating around the upper ridge with temps still hovering near 60 in many locations, unseasonably mild after a very warm February afternoon. 9 pm reading of 65 in the City is noteworthy while SFO broke its record high for the day with an afternoon high of 76 breaking the old record of 74 back in 1992.

Northerly gradient from Arcata to SFO is still a healthy 5-6 mb along with offshore from WMC to SFO of around 10 mb all of which should be sufficient to keep any stratus/fog from forming overnight.

Offshore flow will ease slightly the next few days which should keep us out of record territory but days will continue to be mild to warm with mostly sunny skies Weds through Friday with highs mainly in the 70s regionwide.

Saturday will remain dry but much cooler as onshore winds increase ahead of the next front as clouds increase. The models have been pretty consistent in generating upslope precip over the Sierra with upper level divergence on Sunday while the parent low looks like it wants to stay offshore. The airmass aloft will be much cooler with 850 mb temps from -2 to -4 celsius. This should lead to lots of cold air cumulus and scattered rain showers across the region for Sunday. The convective nature suggests not all locations will see precip on Sunday though cooler temperatures will be felt regionwide with highs only in the 50s or about 20 degrees of cooling from the midweek warm spell.

High pressure builds in by Monday/Tuesday with a return of dry and mild weather. The long range patterns want to build in a negative PNA with some type of troughing over the West as the models hint at perhaps some more rain chances by the first full weekend of March. However, confidence remains low as we transition from a very dry February and hope for some March rains.

PREV DISCUSSION. as of 01:58 PM PST Tuesday . Offshore flow over the region this afternoon has allowed for temperatures to be 5 to as much as 15 degrees warmer compared to this time yesterday. Meanwhile, light onshore flow near the coast has allowed for some cooling with many locations coastal areas reaching their maximum temperature before noon. With this pattern, look for overnight lows to drop into the 40s tonight under mostly clear sky conditions while 50s will be more common in the region's higher elevations.

A ridge of high pressure and weak offshore flow is likely to persist through much of the remainder of the week. This will keep temperatures well above seasonal averages during both the daytime and overnight. Look for 70s for most locations each afternoon with some isolated interior spots reaching 80 deg F with widespread 40s for overnight/morning lows.

The ridge will begin to weaken on Friday as a mid/upper level trough approaches the region from the northwest. While temperatures may cool slightly on Friday, the greatest drop will occur on Saturday when max temperatures drop by around 10 deg F for most locations. Chances for precipitation remain in the forecast from late Saturday night into Sunday as the main trough axis drops southward across the region. However, both deterministic and ensemble members have trended drier for the San Francisco Bay Area and Central Coast as this system moves across the region. Regardless, widespread beneficial rainfall is not anticipated at this time.

AVIATION. as of 9:52 PM PST Tuesday . For 06Z TAFs. Mostly clear skies over the region tonight. Winds have become light which will remain through the morning. Expect breezier conditions in the afternoon. Skies are expected to remain clear with occasional high clouds.

Vicinity of KSFO . VFR. Winds have become light and variable. VFR conditions are forecast through the night night and prevail through Wednesday afternoon. Breezier winds forecast in the afternoon.

SFO Bridge Approach . Similar to the terminal.

Monterey Bay Terminals . VFR. Winds are light a few breezier spots along the coast. There still remains a low confidence chance of low clouds near coastal terminals. Wednesday is forecast to be VFR with light winds, breezier in the afternoon.

MARINE. as of 08:22 PM PST Tuesday . Northwest winds continue to subside but winds gusts will prevail for the outer waters north of Point Reyes through the overnight hours. A longer period northwest swell passes by midweek as winds weaken. Winds and seas will increase later this weekend as the next storm approaches from the Pacific Northwest.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Arena to Pigeon Pt 10-60 nm



PUBLIC FORECAST: RWW AVIATION: DK MARINE: DK

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MEYC1 5 mi76 min SSW 1.9 G 2.9 50°F
46240 - Cabrillo Point, Monterey Bay, CA (158) 5 mi52 min 55°F3 ft
ELXC1 - Elkhorn Slough Reserve, CA 12 mi67 min NE 1 53°F 1023 hPa35°F
46092 - MBM1 14 mi95 min ENE 9.7 55°F 54°F1024.3 hPa (+0.0)
46239 - Point Sur, CA (157) 26 mi52 min 55°F5 ft
46114 - West Monterey Bay, CA 29 mi52 min 55°F5 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 33 mi32 min NNE 3.9 G 5.8 54°F 55°F1024.7 hPa52°F

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Monterey Regional Airport, CA4 mi58 minN 010.00 miFair53°F35°F51%1025.6 hPa
Salinas, Salinas Municipal Airport, CA11 mi59 minSE 1210.00 miFair51°F35°F54%1025.6 hPa
Watsonville, Watsonville Municipal Airport, CA20 mi59 minNNW 410.00 miFair50°F36°F59%1025.2 hPa

Link to 5 minute data for KMRY

Wind History from MRY (wind in knots)
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Last 24hrSE5SE4SE3E7SE8E6W4CalmNE6NW655N53N3CalmE3SE5SE6E9SE9E6SE4Calm
1 day agoSE3SE5SE6E6CalmSE3NW3NW5N4NW5NW5NW5N4NW7NW5W3SW4SW3CalmE4E5SE3CalmSE4
2 days agoW7NW8W6W6W7W6W6W7NW7NW9W10NW9NW9W7W6W7S4S6SW4SW5S4S5CalmSE3

Tide / Current Tables for Monterey, Monterey Harbor, California (2)
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Monterey
Click for Map
Wed -- 12:09 AM PST     4.39 feet High Tide
Wed -- 05:52 AM PST     1.67 feet Low Tide
Wed -- 06:42 AM PST     Sunrise
Wed -- 08:32 AM PST     Moonrise
Wed -- 11:49 AM PST     4.64 feet High Tide
Wed -- 05:58 PM PST     Sunset
Wed -- 06:14 PM PST     0.90 feet Low Tide
Wed -- 08:57 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.44.23.732.31.81.71.92.53.344.54.64.33.72.81.91.20.911.52.33.24

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Wed -- 02:03 AM PST     -0.00 knots Slack
Wed -- 04:38 AM PST     -0.61 knots Max Ebb
Wed -- 06:42 AM PST     Sunrise
Wed -- 08:08 AM PST     0.00 knots Slack
Wed -- 08:32 AM PST     Moonrise
Wed -- 10:58 AM PST     0.52 knots Max Flood
Wed -- 01:57 PM PST     -0.00 knots Slack
Wed -- 04:53 PM PST     -0.69 knots Max Ebb
Wed -- 05:59 PM PST     Sunset
Wed -- 08:29 PM PST     0.00 knots Slack
Wed -- 08:57 PM PST     Moonset
Wed -- 11:24 PM PST     0.55 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.30-0.3-0.6-0.6-0.5-0.3-00.20.40.50.40.3-0-0.3-0.6-0.7-0.6-0.4-0.10.10.40.5

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 (5,6,7,8)
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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.