Tuesday, July7, 2020
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Marine Weather and Tides
La Selva Beach, 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 5:53AMSunset 8:30PM Tuesday July 7, 2020 5:40 PM PDT (00:40 UTC) Moonrise 9:46PMMoonset 7:18AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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- 224 Pm Pdt Tue Jul 7 2020
.small craft advisory in effect until 9 pm pdt this evening...
Tonight..NW winds 15 to 25 kt with gusts up to 30 kt, diminishing to 5 to 15 kt after midnight. Wind waves 5 to 6 ft, decreasing to 2 to 3 ft after midnight. W swell 2 to 4 ft at 9 seconds and S around 2 ft at 13 seconds.
Wed..W winds 10 to 20 kt. Wind waves 3 to 4 ft. W swell 2 to 3 ft at 9 seconds and S around 2 ft at 14 seconds.
Wed night..NW winds up to 10 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 10 seconds and S around 2 ft at 14 seconds.
Thu..NW winds 5 to 15 kt. Wind waves 2 to 3 ft. W swell 2 to 3 ft at 10 seconds.
Thu night..NW winds up to 10 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft at 9 seconds.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 9 seconds.
Fri night..NW winds 5 to 10 kt. Wind waves 1 ft. W swell 2 to 4 ft at 8 seconds.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft.
Sun..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 224 Pm Pdt Tue Jul 7 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A 1033 mb high pressure centered over the eastern pacific and troughing over the west will continue to produce strong and gusty northwest winds through midweek. The strongest winds will occur off of the big sur coast where gale force gusts are likely through this evening. These strong winds will continue to generate steep fresh swell and hazardous seas conditions. Winds will begin to diminish late in the week.


7 Day Forecast for Marine Location Near La Selva Beach, CA
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location: 36.93, -121.85     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 072344 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 444 PM PDT Tue Jul 7 2020

SYNOPSIS. Seasonably cool temperatures will continue today as an upper trough moves through the region. Temperatures are expected to be similar through midweek before warming late in the week and into next weekend as high pressure builds over the region.

DISCUSSION. as of 01:37 PM PDT Tuesday . Mostly clear skies remain over the region with some low clouds well offshore over the waters. Breezy onshore winds this afternoon along the coast and in the hills with observations showing gusts between 25 and 35 mph. Winds have eased compared to yesterday and this morning since the onshore SFO-SAC gradient has weakened. Winds will continue to diminish tonight as a passing upper level trough exits the region into tomorrow. Temperatures this afternoon are within a few degrees of yesterday with most coastal areas in the 60s to low 70s and 70s to low 80s across the interior. Seasonable afternoon highs still anticipated with 60s/70s along the coast and 80s/90s inland. Some uncertainty exists as to whether more extensive low clouds return to the coast tonight/tomorrow morning. The latest NAM model shows the SFO-ACV gradient remaining around 5-6 mb into tomorrow morning. This may once again limit the amount of stratus.

The upper level trough currently over California will continue to move eastward into tomorrow while zonal flow develops aloft. This will result in a slight increase in temperatures tomorrow, though conditions will remain fairly seasonable. More noticeable warming is expected late this week and into the weekend as high pressure continues to build over the Desert Southwest and expand into California. A wide spread of highs is forecast late this week and through the weekend where the coast will continue to see temperatures in the 60s and 70s while the far portions of the interior will reach the mid to upper 90s. Enough cooling is expected in the overnight hours to limit heat risk to low for most locations with only some patches of moderate heat risk far inland. Latest deterministic models show high pressure situated over the Desert Southwest through much of next week.

AVIATION. As of 4:42 PM PDT Tuesday . for 00Z TAFs. Clear skies over the regional terminals, while visible satellite shows stratus over the ocean making a southerly trend down the coastline. Winds are breezy and onshore, with a few stronger gusts at coastal terminals. Difficult forecast tonight dependent upon the movement of the stratus and the onshore inundation of moisture toward land that is locked in with dry air. Changes for low clouds for coastal terminals, but there is low confidence given the strength the dry air (lack of low clouds) last night/this past morning. Winds will scale back overnight before another afternoon breezy conditions.

Vicinity of KSFO . VFR. Winds are out of the west between 21-24 kt, gust up to 30 knots is still possible until approximately 4z. Winds will subside overnight potential for FEW/SCT low clouds to develop early Wednesday morning, low confidence in any fuller build up of clouds. VFR expected again on Wednesday afternoon with strong onshore winds.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Skies are clear with breezy onshore winds and occasional stronger gusts. As winds subside this evening, low clouds are forecast to develop with MVFR likely, and IFR conditions possible with the potential for lowering visibility as well. Clouds are expected to lift around 17z Wednesday as winds remain onshore and become breezy in the afternoon.

MARINE. as of 04:34 PM PDT Tuesday . A 1033 mb high pressure centered over the eastern Pacific and troughing over the West will continue to produce strong and gusty northwest winds through midweek. The strongest winds will occur off of the Big Sur coast where gale force gusts are likely through this evening. These strong winds will continue to generate steep fresh swell and hazardous seas conditions. Winds will begin to diminish late in the week.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Reyes to Pigeon Pt 0-10 nm until 3 AM SCA . Pigeon Pt to Pt Pinos 0-10 nm until 3 AM SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm GLW . Pt Pinos to Pt Piedras Blancas 0-10 nm until 9 PM SCA . Mry Bay until 9 PM



PUBLIC FORECAST: AS AVIATION: DK MARINE: RGass

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MLSC1 - Moss Landing, South Harbor, CA 9 mi185 min W 8 G 22 60°F 1015.2 hPa53°F
ELXC1 - Elkhorn Slough Reserve, CA 10 mi55 min W 6 65°F 56°F
46092 - MBM1 16 mi131 min NW 16 56°F 55°F1014 hPa (-1.8)
46240 - Cabrillo Point, Monterey Bay, CA (158) 21 mi74 min 62°F3 ft
MEYC1 23 mi64 min WNW 8.9 G 14 59°F 64°F
46042 - MONTEREY - 27NM West of Monterey Bay, CA 31 mi180 min NW 19 G 23 56°F 55°F53°F
46114 - West Monterey Bay, CA 31 mi44 min 54°F9 ft
46239 - Point Sur, CA (157) 43 mi44 min 55°F8 ft
RTYC1 - 9414523 - Redwood City, CA 44 mi52 min W 15 G 17 76°F 74°F1013.2 hPa

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA3 mi47 minSSW 710.00 miFair70°F52°F53%1013.6 hPa
Monterey Regional Airport, CA23 mi46 minWNW 1010.00 miFair65°F52°F63%1016.2 hPa
Salinas, Salinas Municipal Airport, CA23 mi1.8 hrsNW 1310.00 miFair69°F50°F51%1014.9 hPa
Hollister, CA, CA23 mi45 minWSW 1710.00 miFair79°F44°F30%1012.5 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
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Last 24hrS8SE7S8E7E6NE3NE4CalmCalmN3E3CalmCalmCalmCalmNE33SW6SW7S11S73S6S7
1 day agoS9S6SE7SE6E4E4E4NE4CalmCalmCalmCalmCalmCalmNE4E4Calm4S7S6SE5SE7S8S7
2 days agoS6S6S6CalmCalmCalmCalmCalmCalmCalmCalmCalmNW4CalmCalmCalm4SW6SW5S7S8S7S10S8

Tide / Current Tables for Elkhorn Slough railroad bridge, Monterery Bay, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Tue -- 01:50 AM PDT     -0.00 knots Slack
Tue -- 05:10 AM PDT     -1.03 knots Max Ebb
Tue -- 05:56 AM PDT     Sunrise
Tue -- 08:19 AM PDT     Moonset
Tue -- 09:10 AM PDT     0.00 knots Slack
Tue -- 12:15 PM PDT     0.79 knots Max Flood
Tue -- 03:37 PM PDT     -0.00 knots Slack
Tue -- 05:49 PM PDT     -0.46 knots Max Ebb
Tue -- 08:29 PM PDT     Sunset
Tue -- 09:04 PM PDT     0.00 knots Slack
Tue -- 10:45 PM PDT     Moonrise
Tue -- 11:49 PM PDT     0.51 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.3-0.1-0.5-0.9-1-1-0.8-0.5-0.10.30.70.80.80.60.2-0.1-0.4-0.5-0.4-0.2-00.20.5

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 (20,4,5,8)
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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.