Monday, July6, 2020
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Marine Weather and Tides
Davenport, 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 8:32PM Monday July 6, 2020 7:35 PM PDT (02:35 UTC) Moonrise 9:10PMMoonset 6:16AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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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PZZ560 Coastal Waters From Pigeon Point To Point Pinos California Out To 10 Nm- 220 Pm Pdt Mon Jul 6 2020
.small craft advisory in effect through late Tuesday night...
Tonight..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 6 to 7 ft, decreasing to 4 to 5 ft after midnight. NW swell 6 to 7 ft at 10 seconds and S 2 to 3 ft at 15 seconds.
Tue..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 4 to 5 ft. NW swell 5 to 7 ft at 10 seconds and S around 2 ft at 14 seconds.
Tue night..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 3 to 4 ft. NW swell 5 to 7 ft at 9 seconds and S around 2 ft at 14 seconds.
Wed..NW winds 10 to 15 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 9 seconds and S around 2 ft at 15 seconds.
Wed night..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. NW swell 4 to 5 ft at 8 seconds and S around 2 ft at 14 seconds.
Thu..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 to 2 ft. Mixed swell nw 3 to 4 ft at 8 seconds and S around 2 ft at 14 seconds.
Thu night..NW winds 10 to 15 kt. Wind waves 1 to 2 ft. Mixed swell nw 3 to 4 ft at 9 seconds and S around 2 ft at 14 seconds.
Fri..NW winds 10 to 20 kt. Wind waves 1 to 2 ft. NW swell 3 to 5 ft and S around 2 ft.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. Mixed swell nw 3 to 4 ft and S around 2 ft.
PZZ500 220 Pm Pdt Mon Jul 6 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... An upper level trough approaching the pacific northwest and surface high pressure well offshore will produce strong and gusty northwest winds across the coastal waters through tonight. Gale force gusts are possible along the northern near shore waters and off of the big sur coast. These strong northwest winds will also generate steep fresh swell and hazardous seas conditions. Winds will diminish later in the week.


7 Day Forecast for Marine Location Near Davenport, CA
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location: 37.01, -122.2     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 062359 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 459 PM PDT Mon Jul 6 2020

SYNOPSIS. Slightly cooler temperatures will continue into tomorrow as an upper trough moves through the region. This will likely result in the deepening of the marine layer for the immediate coastline. 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 01:31 PM PDT Monday . Mostly clear skies this afternoon across the Bay Area and Central Coast as the marine layer deepens ahead of an approaching upper trough. As a result, temperatures this afternoon are about 5 or so degrees cooler than yesterday with most locations along the coast in the 60s and 70s to mid 70s/80s across the interior. Expect a few degrees of additional warming this afternoon with highs along the coast in the 60s to low 70s to 70s/80s inland. Isolated interior locations will reach the low 90s. Breezy onshore winds continue this afternoon, particularly along the coast and in the hills where gusts of around 30-40 mph are still being observed. Gusty winds will persist the rest of the afternoon and this evening before easing overnight.

Cooler weather will continue for tomorrow as the upper trough moves through. Temperatures are forecast to be fairly similar to today with some breezy afternoon and evening winds returning, though not to the extent of today. The combination of the upper trough and northwest flow over the waters will likely result in the deepening of the marine layer along the coast and locally inland overnight. More widespread coastal stratus is expected tomorrow night and into Wednesday morning.

The upper trough will have moved off to the east by mid-week. The combination of building high pressure over the Desert Southwest and an approaching upper trough into British Columbia and the Pacific Northwest will result in more zonal flow across California. Later in the week, high pressure looks to build further over the Desert Southwest exerting more influence over the region. This will result in a more compressed marine layer and warming temperatures, particularly inland. Current forecast has not changed much from last night with a wide temperature spread across the area late this week and into the weekend. Coastal areas will likely remain in the upper 60s to mid 70s while the warmest spots across the interior rise into the mid 90s to about 100 degrees F.

AVIATION. As of 4:55 PM PDT Monday . Gusty west to northwest winds will continue through much of the evening before gradually diminishing overnight. MVFR/IFR ceilings will likely develop at Monterey Bay terminals by 04Z before spreading inland early Tuesday morning as the marine layer deepens. However, not all Bay Area terminals are expected to be impacted. VFR conditions are forecast to develop at all terminals by 18Z Tuesday, except at KMRY where MFVR ceilings may persist longer. Onshore breezes tomorrow afternoon are not expected to be as strong as today.

Vicinity of KSFO . VFR through most of the forecast period. West winds will gust in excess of 30 knots through about 04Z and then gradually diminish thereafter. Stratus will likely develop locally into SF Bay late Monday night and MVFR ceilings are possible at the terminal between about 11Z and 15Z, but confidence is low on this point. West winds will increase once again on Tuesday afternoon, but will not be as strong as on Monday.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . MVFR ceilings will likely develop by 04Z and persist until 18Z Tuesday. Also, areas of IFR ceilings possible starting at 06Z and continuing into Tuesday morning. Light to moderate westerly winds will prevail.

MARINE. as of 08:50 AM PDT Monday . An upper level trough approaching the Pacific Northwest and surface high pressure well offshore will produce strong and gusty northwest winds across the coastal waters through tonight. Gale force gusts are possible along the northern near shore waters and off of the Big Sur coast. These strong northwest winds will also generate steep fresh swell and hazardous seas conditions. Winds will diminish later in the week.

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



PUBLIC FORECAST: AS AVIATION: Dykema MARINE: RGass

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46042 - MONTEREY - 27NM West of Monterey Bay, CA 19 mi26 min NW 18 G 21 56°F 55°F1016.4 hPa53°F
46092 - MBM1 20 mi117 min NW 19 56°F 55°F1014.1 hPa (-0.8)
46114 - West Monterey Bay, CA 23 mi40 min 55°F7 ft
MLSC1 - Moss Landing, South Harbor, CA 26 mi118 min W 8.9 G 31 61°F 1014.7 hPa54°F
ELXC1 - Elkhorn Slough Reserve, CA 28 mi51 min S 5.1 65°F 55°F
46240 - Cabrillo Point, Monterey Bay, CA (158) 31 mi70 min 62°F4 ft
MEYC1 32 mi60 min WNW 12 G 18 58°F 64°F1016.3 hPa
RTYC1 - 9414523 - Redwood City, CA 34 mi48 min W 12 G 16 63°F 75°F1015.6 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 43 mi26 min NW 18 G 23 56°F 1016.5 hPa52°F
46239 - Point Sur, CA (157) 46 mi40 min 54°F8 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA22 mi43 minSE 710.00 miFair69°F53°F57%1014.6 hPa

Link to 5 minute data for KWVI≥os=west/wc

Wind History from (wind in knots)oops, file error: weather/buffer/KWVI≥os=west/wcairportwind
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Tide / Current Tables for Santa Cruz, Monterey Bay, California
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Santa Cruz
Click for Map
Mon -- 05:55 AM PDT     Sunrise
Mon -- 06:10 AM PDT     -1.25 feet Low Tide
Mon -- 07:15 AM PDT     Moonset
Mon -- 01:17 PM PDT     4.36 feet High Tide
Mon -- 06:03 PM PDT     2.91 feet Low Tide
Mon -- 08:30 PM PDT     Sunset
Mon -- 10:08 PM PDT     Moonrise
Mon -- 11:43 PM PDT     5.65 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.64.73.31.70.2-0.8-1.2-1-0.30.71.833.94.34.33.93.53.12.93.13.64.355.5

Tide / Current Tables for Ano Nuevo Island, California
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Ano Nuevo Island
Click for Map
Mon -- 05:55 AM PDT     Sunrise
Mon -- 06:04 AM PDT     -1.35 feet Low Tide
Mon -- 07:16 AM PDT     Moonset
Mon -- 01:08 PM PDT     4.26 feet High Tide
Mon -- 05:57 PM PDT     2.81 feet Low Tide
Mon -- 08:32 PM PDT     Sunset
Mon -- 10:10 PM PDT     Moonrise
Mon -- 11:34 PM PDT     5.55 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.44.531.4-0.1-1-1.4-1.1-0.30.71.933.94.34.13.83.32.92.833.64.355.5

Weather Map
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wmap_P
GEOS Local Image of    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.

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (22,6,7,8)
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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.