Wednesday, July8, 2020
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Marine Weather and Tides
Temelec, 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 5:52AMSunset 8:36PM Wednesday July 8, 2020 12:21 AM PDT (07:21 UTC) Moonrise 10:23PMMoonset 8:19AM Illumination 92% Phase: Waning Gibbous; Moon at 18 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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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 835 Pm Pdt Tue Jul 7 2020
Tonight..SW winds 5 to 15 kt.
Wed..SW winds 5 to 15 kt with gusts up to 25 kt.
Wed night..SW winds 5 to 15 kt.
Thu..SW winds 5 to 15 kt.
Thu night..SW winds 5 to 15 kt.
Fri..SW winds 5 to 15 kt with gusts up to 25 kt.
Fri night..SW winds 5 to 10 kt.
Sat..SW winds 5 to 15 kt.
Sun..SW winds 5 to 15 kt.
PZZ500 835 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... Winds remain strong and out of the northwest and will prevail through Wednesday with stronger near-gale force gusts possible near the sonoma and big sur coastlines. These strong winds will continue to generate steep fresh swell and hazardous seas conditions, especially for smaller crafts. Winds are still forecast to diminish by the weekend.


7 Day Forecast for Marine Location Near Temelec, CA
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location: 38.22, -122.43     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 080532 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1032 PM PDT Tue Jul 7 2020

SYNOPSIS. Little change in daily high and low temperatures through midweek then warming late in the week and weekend mainly inland.

DISCUSSION. as of 9:58 PM PDT Tuesday . It's clear except for a few patches of stratus and fog developing on the San Mateo Coast and the northern Monterey county coastline. The marine layer varies from 700 feet deep at Bodega Bay to close to 1,200 feet deep at Fort Ord.

Similar to previous evenings the ACV-SFO pressure gradient is stronger than forecast by 18z/00z NAM model runs, currently 6.7 mb. Clockwise surface winds around the eastern Pacific surface high pressure system is fairly robust for early July with northwest winds along the coast more spring-like, especially since the wind continues to interrupt the usual development of stratus and fog. From a precipitable water perspective it's typically 0.70" this time of year while since last Thursday it's averaged 0.45" which is drier than typical. Drier air continuously caught up in northwest wind flow with stronger mid-latitude influence is largely disrupting any foothold the stratus and fog can make. Much of mid to late spring was like this until we had a solid period of stratus and fog in late June. Upwelling due to strong northwest winds has caused the sea surface temperature at Bodega Bay buoy to lower back to 49F today, sea surface temps varying from 49F to 55F atypically cooler for early July by at least a couple degrees with NW surface winds offsetting July high sun angle warming. Average temperatures today at the coast and inland were very close to 30 year normals.

A gradual warming trend is forecast through late week as thermal ridging and eventually 500 mb geopotential heights increase, more so for later in the week. A very strong high pressure center over the SouthWest will tend to build westward causing more of a compression of the marine layer with time. In the interim varying amounts of stratus and fog coverage from day to night will continue favoring coverage at night. If a strong north pressure gradient and wind continue then the models may continue to over-forecast boundary layer humidity and ultimately over-forecast stratus and fog coverage; since there are infinite nuances it's impossible to say for sure beyond the nearest term. High temperatures will vary from the 60s/70s coastside and bayside to the 90s well inland, a few spots far inland possibly 100. Peak temperatures appear at this time to focus on Saturday and Sunday maybe some carry over of hot temps into Monday as well. Otherwise expect dry conditions with robust onshore winds mainly afternoon and evenings the next several days.

There have been data transmission issues/delays through the day including point and click issues on the website, should clear up either this evening or by early Wednesday. FAA line issue had interrupted KSNS observations earlier, however recently these observations are arriving again. Also, quite likely a sensor issue at KOAK, earlier reported 84F max temperature much warmer than surrounding locations thus max temp reported missing in the Regional Temp and Precip Table (RTP); a few inquiries regarding data were made earlier in the day.

AVIATION. As of 10:32 PM PDT Tuesday . for 06Z TAFs. Mostly VFR, with isolated IFR conditions along the Monterey Peninsula. Winds remain northwesterly and breezy, but are expected to ease overnight at most terminals. Stratus has reformed along the coastline. Terminals closer to the coast can expect MVFR conditions, while inland terminals are forecast to remain VFR with an occasional cloud passing over. Skies will clear out after 16z for VFR Wednesday afternoon with breezy winds.

Vicinity of KSFO . VFR with a FEW clouds around 1000 ft AGL. Winds remain northwest and between 15-18 kt, but will ease through the night. With consistent onshore flow, cloud cover should increase through the evening, but there is low confidence in cigs lower than MVFR conditions. VFR is forecast on Wednesday after 17z with northwest winds increasing once again, with occasional stronger gusts.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Stratus has built up over the ocean and impacted KMRY to drop to IFR conditions a few hours earlier than previously forecast. VFR conditions remain for terminals farther inland, but cloud cover is expected to move inland as winds remain onshore. VFR Wednesday afternoon with breezy northwest winds.

MARINE. as of 8:35 PM PDT Tuesday . Winds remain strong and out of the northwest and will prevail through Wednesday with stronger near-gale force gusts possible near the Sonoma and Big Sur coastlines. These strong winds will continue to generate steep fresh swell and hazardous seas conditions, especially for smaller crafts. Winds are still forecast to diminish by the weekend.

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 SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm



PUBLIC FORECAST: Canepa AVIATION: DK MARINE: DK

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 14 mi51 min WSW 5.1 G 8 65°F 1011.2 hPa
UPBC1 21 mi51 min WNW 7 G 8.9
SFXC1 - San Francisco Bay Reserve, CA 21 mi96 min W 5.1
RCMC1 - 9414863 - Richmond, CA 21 mi51 min S 8 G 12 60°F 64°F1012.1 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 21 mi51 min NW 6 G 8 68°F 69°F1011.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 22 mi51 min S 8.9 G 12 61°F 1012.7 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 23 mi35 min SSE 5.1 57°F 1012 hPa
PCOC1 - 9415144 - Port Chicago, CA 24 mi51 min SW 8 G 9.9 67°F 70°F1010.9 hPa
PXSC1 29 mi51 min 60°F 54°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi51 min S 1.9 G 4.1 59°F 1011.5 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 29 mi51 min SW 14 G 15
OKXC1 - 9414776 - Oakland (Berth 34), CA 29 mi51 min SW 8 G 13 58°F 1012.6 hPa
OBXC1 29 mi51 min 58°F 56°F
FTPC1 - 9414290 - San Francisco, CA 29 mi51 min SW 2.9 G 5.1 56°F 63°F1012.7 hPa
LNDC1 30 mi51 min SW 6 G 7 59°F 1012.6 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 31 mi51 min WNW 9.9 G 13 72°F 1010.2 hPa
AAMC1 - 9414750 - Alameda, CA 32 mi51 min W 9.9 G 13 59°F 71°F1012.8 hPa
46237 - San Francisco Bar, CA (142) 32 mi51 min 54°F5 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 39 mi161 min NW 16 G 21 54°F 51°F1013.2 hPa52°F
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 46 mi161 min NW 27 G 33 53°F 1012.3 hPa52°F

Wind History for Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Napa, Napa County Airport, CA8 mi27 minSSW 610.00 miFair60°F51°F72%1010.9 hPa
Novato / Gnoss Field, CA8 mi46 minN 010.00 miFair59°F51°F77%1011.8 hPa
Petaluma Municipal Airport, CA10 mi26 minN 03.00 miFog/Mist55°F53°F94%1012.2 hPa

Link to 5 minute data for KDVO

Wind History from DVO (wind in knots)
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Last 24hrE6E4Calm3CalmCalmCalmCalmCalm3Calm45SW9SW12SW12SW12SW12
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1 day agoCalmN5CalmCalmCalmCalmCalmCalmCalmCalmS7
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Tide / Current Tables for Wingo, Sonoma Creek, San Pablo Bay, California
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Wingo
Click for Map
Wed -- 03:54 AM PDT     5.98 feet High Tide
Wed -- 05:54 AM PDT     Sunrise
Wed -- 09:19 AM PDT     Moonset
Wed -- 11:42 AM PDT     -0.95 feet Low Tide
Wed -- 06:07 PM PDT     5.07 feet High Tide
Wed -- 08:35 PM PDT     Sunset
Wed -- 11:23 PM PDT     Moonrise
Wed -- 11:58 PM PDT     2.59 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.93.74.85.665.74.93.72.30.9-0.2-0.8-0.9-0.30.82.23.64.65.14.94.43.83.22.7

Tide / Current Tables for Petaluma River Approach, San Pablo Bay, California Current
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Petaluma River Approach
Click for Map
Wed -- 03:12 AM PDT     -0.00 knots Slack
Wed -- 05:54 AM PDT     Sunrise
Wed -- 06:51 AM PDT     -0.92 knots Max Ebb
Wed -- 09:19 AM PDT     Moonset
Wed -- 10:58 AM PDT     0.00 knots Slack
Wed -- 02:00 PM PDT     0.62 knots Max Flood
Wed -- 05:39 PM PDT     -0.00 knots Slack
Wed -- 07:57 PM PDT     -0.38 knots Max Ebb
Wed -- 08:34 PM PDT     Sunset
Wed -- 10:26 PM PDT     0.00 knots Slack
Wed -- 11:23 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.50.30.1-0.3-0.7-0.9-0.9-0.8-0.7-0.400.40.60.60.60.40.2-0.1-0.3-0.4-0.3-0.10.2

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 Sacramento, 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.