Sunday, July5, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Shell Ridge, 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 5:50AMSunset 8:35PM Sunday July 5, 2020 12:53 PM PDT (19:53 UTC) Moonrise 8:26PMMoonset 5:11AM Illumination 100% Phase: Full Moon; Moon at 15 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
    EDIT      (on/off)   Help
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 851 Am Pdt Sun Jul 5 2020
.small craft advisory in effect through this evening...
.small craft advisory in effect from Monday morning through Monday evening...
Rest of today..SW winds 10 to 20 kt with gusts up to 30 kt this afternoon.
Tonight..W winds 10 to 20 kt with gusts up to 25 kt.
Mon..SW winds 10 to 20 kt with gusts up to 25 kt.
Mon night..W winds 10 to 20 kt with gusts up to 25 kt.
Tue..SW winds 5 to 15 kt with gusts up to 25 kt.
Tue night..SW winds 5 to 15 kt.
Wed..SW winds 5 to 15 kt.
Thu..SW winds 10 to 20 kt with gusts up to 25 kt.
PZZ500 851 Am Pdt Sun Jul 5 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A 1030 mb high centered 1000 miles west of cape mendocino will move closer to the coast through Monday. As a result, gusty northwest winds will continue over the coastal waters into midweek. Gale force gusts are possible along the big sur coast Monday afternoon and evening. Strong northwest winds will generate steep fresh swell resulting in hazardous seas conditions. A long- period southerly swell will continue through Monday before swell periods begin to subside.


7 Day Forecast for Marine Location Near Shell Ridge, CA
   Hourly   EDIT   Help
location: 37.9, -122.03     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 051800 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1100 AM PDT Sun Jul 5 2020

SYNOPSIS. Warm and dry conditions continue through Sunday as a result of high pressure lingering over the region. Winds will remain onshore and breezy. A slight cooling of temperatures are forecast on Monday as onshore flow increases and the marine layer likely returns. Temperatures will be more seasonable for most of next week, with warming likely late in the week and into next weekend.

DISCUSSION. as of 08:52 AM PDT Sunday . Skies remain clear as the last patch of clouds over the Eastern Monterey Bay slowly dissipates. The Park Fire, east of Morgan Hill, has been reported via Cal Fire twitter to be approximately 100 acres and who's smoke plume is still visible on satellite. Temperatures this morning are a couple degrees warmer than 24 hours previously, so the forecast of another hot and dry day is still expected today.

As the next upper level trough moves southward down the Washington coast, expected the marine layer to deepen overnight and continued onshore directional flow through the week. This onshore flow will help cool temperatures slightly on monday, with 60s and 70s near the coast and 80s inland (isolated low-90s). No changes to the long term forecast as mentioned in the previous discussion.

PREV DISCUSSION. as of 3:00 AM PDT Sunday . High pressure remains over the region tonight and is resulting in warm and dry conditions above the nocturnal inversion. Satellite imagery depicts rare clear Fourth of July night skies under a bright Buck Moon. That said, latest imagery indicates an isolated patch of marine stratus is redeveloping at a rapid clip offshore of Moss Landing (on the coast halfway between Monterey and Santa Cruz). Overnight satellite imagery has also been active due to a wide number of grass fires that developed most likely due to fireworks being shot off. The largest of these fires is the #ParkFire burning just east of Morgan Hill on the southeastern flank of Anderson Lake, as of 1am it was 40 acres in size and prompted evacuations. Dry conditions will persist through the weekend so please be mindful of any activities that may lead to wildfires throughout the remainder of the holiday. Local and national air monitoring picked up on the increase in air particulates in the near surface atmosphere through this evening in response to the number of fireworks being set off with many urban areas rising into the unhealthy range early into the night. The stagnant air mass in place will likely keep this smoke near surface to a few hundred feet until the cap breaks in the mid morning.

High pressure is forecast to remain in place again today with only minor temperature and humidity differences versus yesterday. Coastally influenced regions will run a degree or two cooler as onshore flow increases, particularly near the coast and through coastal gaps, while the interior areas will be a degree or two warmer than yesterday. Breezy to locally gusty onshore winds this afternoon and evening will leak into segments of the drier interior valleys which warrants closer watch given the active wildfires that developed overnight. The marine layer is not anticipated to make a significant comeback until Monday night, however, given that a patch of stratus popped up near Moss Landing tonight it is conceivable that additional patches of the marine layer will redevelop Sunday night along the immediate coast especially where sea surface temperatures are coolest.

By Monday, the same low pressure trough that was over the region this last Thursday will become revitalized by a series of vorticity pulses passing through it. As a result, it will dig southward and shunt the high pressure currently overhead southward and out of the local region promoting cooler and moister weather for the Bay Area and Central coast. Onshore flow will increase further on Monday which will help cool the region further while lower pressure aloft will relieve the pressure valve on the marine layer and allow it to rebuild easier along the coast. The base of the low pressure trough then swings inland Tuesday through midweek which is anticipated to weaken the onshore wind gradient but allow the marine layer to deepen. Due to the weaker onshore winds, onshore advection of cool, moist marine air will be weaker thus forcing slightly warmer temps for the interior through mid week.

The end of the work week almost looks like a carbon copy of last week, with the Bay Area sandwiched between low pressure to the north and backbuilding high pressure to the southeast. These features expanding or contracting a few hundred miles one direction or the other will sway the forecast warmer/cooler and we see this playing out with some model uncertainty in the mid to long range forecast models late next week. The EURO supports a rebuilding of the ridge from the southeast (similar to what actually happened late last week) while the GFS supports the trough overpowering the ridge (which is not what happened late last week). Given a similar setup and higher confidence in the EURO output, forecast has been trended towards EURO deterministic data. Expect a warming/drying trend into next weekend as a result.

AVIATION. as of 11:00 AM PDT Sunday . for 18Z TAFS. VFR conditions prevail over the region this morning with onshore flow beginning to increase. Expecting generally west to northwest winds of around 12 kt or greater at most terminals this afternoon with locally stronger gusts in excess of 20 kt in the typically windy locations. Wind speeds diminish after sunset with VFR conditions likely to prevail for most sites in and around the San Francisco Bay Area, yet can't rule out few/sct low clouds around sunrise Monday. Meanwhile, higher confidence in the return of MVFR/IFR ceilings around the Monterey Bay terminals early Monday morning as the marine layer returns.

Vicinity of KSFO . VFR. West winds increasing to 20-25 kt with gusts to 30-34 kt after 21Z. Winds trend weaker late in the night and into Monday morning, yet will remain moderate onshore.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR. West winds 10-15 kt with gusts to 20 kt in the Salinas Valley after 20Z. Onshore winds diminish late in the evening and overnight with MVFR/IFR ceilings developing around or after 09z Monday.

MARINE. as of 08:52 AM PDT Sunday . A 1030 mb high centered 1000 miles west of Cape Mendocino will move closer to the coast through Monday. As a result, gusty northwest winds will continue over the coastal waters into midweek. Gale force gusts are possible along the Big Sur coast Monday afternoon and evening. Strong northwest winds will generate steep fresh swell resulting in hazardous seas conditions. A long- period southerly swell will continue through Monday before swell periods begin to subside.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . Pt Arena to Pt Reyes 0-10 nm 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 SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . SF Bay from 11 AM SCA . Mry Bay from 11 AM



PUBLIC FORECAST: DRP/DK AVIATION: RGass MARINE: RGass

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/nwsbayarea www.twitter.com/nwsbayarea www.youtube.com/nwsbayarea


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
UPBC1 11 mi54 min WNW 12 G 15
MZXC1 - 9415102 - Martinez-Amorco CA 11 mi54 min WNW 13 G 15 77°F 70°F1015.1 hPa (-0.6)
PCOC1 - 9415144 - Port Chicago, CA 11 mi54 min W 12 G 13 76°F 70°F1014.7 hPa (-0.7)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 12 mi54 min NW 11 G 15 77°F 1014.5 hPa (-0.3)
LNDC1 15 mi54 min WSW 5.1 G 6 68°F 1016.3 hPa (-0.4)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 16 mi54 min WSW 8 G 9.9 73°F 1015.2 hPa (-0.5)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 17 mi54 min SSW 8.9 G 9.9
AAMC1 - 9414750 - Alameda, CA 17 mi54 min WSW 8 G 9.9 65°F 69°F1016.5 hPa (-0.4)
OKXC1 - 9414776 - Oakland (Berth 34), CA 17 mi54 min S 5.1 G 7 69°F 1016.3 hPa (-0.4)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 18 mi54 min SSW 12 G 16 64°F 1016.6 hPa
OBXC1 18 mi54 min 66°F 57°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 20 mi54 min W 4.1 G 7 69°F 1015.4 hPa (-0.3)
RCMC1 - 9414863 - Richmond, CA 20 mi54 min S 5.1 G 9.9 65°F 66°F1015.9 hPa (-0.4)
PXSC1 21 mi54 min 68°F 53°F
SFXC1 - San Francisco Bay Reserve, CA 21 mi69 min W 6
TIBC1 - Tiburon Pier, San Francisco Bay, CA 22 mi56 min S 7 67°F 1016 hPa
FTPC1 - 9414290 - San Francisco, CA 24 mi54 min WSW 5.1 G 14 62°F 64°F1016.7 hPa (+0.0)
RTYC1 - 9414523 - Redwood City, CA 29 mi54 min N 7 G 8 71°F 75°F1016.8 hPa (-0.5)
46237 - San Francisco Bar, CA (142) 33 mi54 min 60°F6 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 44 mi34 min NW 18 G 23 55°F 54°F1017.3 hPa51°F

Wind History for Union Pacific Rail Road Bridge (UPRR), CA
(wind in knots)    EDIT      (on/off)   Help
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last
24hr
NW11
G14
NW7
G10
NW10
NW10
G15
NW13
G16
W11
G15
W15
W14
W15
W13
W9
NW10
G14
NW9
G12
NW9
G13
W10
NW11
W12
NW9
NW9
G12
NW11
NW9
G12
NW9
G13
NW12
NW12
G15
1 day
ago
W16
W14
G18
NW13
G16
W11
G15
W13
G16
W11
G16
W11
G14
W13
G16
W9
NW8
G11
NW7
NW8
NW8
G11
NW8
G11
NW9
NW9
NW11
G14
NW12
NW8
G15
NW11
G15
NW11
G14
NW9
NW12
NW10
G14
2 days
ago
NW15
G19
W15
G19
W19
G23
W15
G19
W15
G22
W13
G20
SW19
G23
SW17
G23
W15
G20
W15
G19
W15
G19
W15
G20
W13
G20
W14
G20
W17
W16
G20
W14
G20
W14
G18
W16
G20
W15
W16
W12
G16
W13
NW13
G18

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi61 minWNW 710.00 miFair87°F41°F20%1013.4 hPa
Hayward, Hayward Air Terminal, CA17 mi60 minWSW 610.00 miFair72°F53°F52%1017.1 hPa
Oakland, Metro Oakland International Airport, CA17 mi61 minW 910.00 miFair73°F52°F48%1016.6 hPa
Livermore, Livermore Municipal Airport, CA18 mi61 minVar 610.00 miFair85°F42°F22%1014.7 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last 24hrNW8NW9NW10NW11
G17
NW10W11W9W8SW3SW5SW5SW6SE5S6SE5--S5S6SW3SE44NW6NW8W7
1 day agoW8W7W13
G20
W11W12
G15
W9W9SW7W9S7S6S10S8W3CalmCalmNW5CalmCalmCalmN4N55NW8
2 days ago6W11
G16
W16
G21
W16W14SW14SW14SW8W6W5W6W9W10W6W6W8W8W11W13SW10W11W11W8W11

Tide / Current Tables for Mallard Island Ferry Wharf, Suisun Bay, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Mallard Island Ferry Wharf
Click for Map
Sun -- 02:42 AM PDT     4.76 feet High Tide
Sun -- 05:51 AM PDT     Sunrise
Sun -- 06:10 AM PDT     Moonset
Sun -- 10:46 AM PDT     -0.53 feet Low Tide
Sun -- 05:02 PM PDT     3.56 feet High Tide
Sun -- 08:33 PM PDT     Sunset
Sun -- 09:25 PM PDT     Moonrise
Sun -- 09:59 PM PDT     1.84 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
3.34.14.74.74.43.72.81.80.90.2-0.4-0.5-0.10.71.72.63.33.63.42.92.421.82

Tide / Current Tables for Stake Point .9 Mi NNW, Suisun Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Stake Point .9 Mi NNW
Click for Map
Sun -- 12:58 AM PDT     0.96 knots Max Flood
Sun -- 03:54 AM PDT     -0.00 knots Slack
Sun -- 05:51 AM PDT     Sunrise
Sun -- 06:10 AM PDT     Moonset
Sun -- 07:59 AM PDT     -0.98 knots Max Ebb
Sun -- 11:38 AM PDT     0.00 knots Slack
Sun -- 03:32 PM PDT     0.82 knots Max Flood
Sun -- 06:31 PM PDT     -0.00 knots Slack
Sun -- 08:33 PM PDT     Sunset
Sun -- 08:33 PM PDT     -0.30 knots Max Ebb
Sun -- 09:26 PM PDT     Moonrise
Sun -- 10:14 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.910.80.5-0-0.4-0.8-0.9-1-0.9-0.7-0.30.10.50.70.80.80.60.2-0.1-0.3-0.3-0.10.3

Weather Map
       (on/off)   Help Weather Map
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 (15,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Sacramento, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
Disclaimer:
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.