|
Marine Weather and Tides
Version 3.4 |
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. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:47AM | Sunset 4:58PM | Friday November 15, 2019 3:59 PM PST (23:59 UTC) | Moonrise 7:40PM | Moonset 9:49AM | Illumination 85% |  |
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 219 Pm Pst Fri Nov 15 2019
Tonight..SW winds up to 10 kt.
Sat..SW winds up to 10 kt.
Sat night..SW winds around 5 kt.
Sun..NE winds around 5 kt.
Sun night..W winds around 5 kt.
Mon..NE winds up to 10 kt.
Mon night..W winds 5 to 10 kt.
Tue..W winds 10 to 20 kt.
Wed..N winds 5 to 15 kt.
Tonight..SW winds up to 10 kt.
Sat..SW winds up to 10 kt.
Sat night..SW winds around 5 kt.
Sun..NE winds around 5 kt.
Sun night..W winds around 5 kt.
Mon..NE winds up to 10 kt.
Mon night..W winds 5 to 10 kt.
Tue..W winds 10 to 20 kt.
Wed..N winds 5 to 15 kt.
PZZ500 219 Pm Pst Fri Nov 15 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Increasing northwesterly winds expected tonight in the wake of the departing cold front. This coupled with a moderately large northwesterly swell will produce hazardous conditions into the weekend across much of the coastal waters. The relatively large, long period northwest swell will continue through the weekend then gradually diminish through the first half of the work week. A larger northwesterly swell is forecast to move through the coastal waters Wednesday.
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Increasing northwesterly winds expected tonight in the wake of the departing cold front. This coupled with a moderately large northwesterly swell will produce hazardous conditions into the weekend across much of the coastal waters. The relatively large, long period northwest swell will continue through the weekend then gradually diminish through the first half of the work week. A larger northwesterly swell is forecast to move through the coastal waters Wednesday.
7 Day Forecast for Marine Location Near Saranap, CA
Hourly EDIT Helplocation: 37.89, -122.07 debug
Area Discussion for - San Francisco/Monterey Bay Area, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 kmtr 152135 afdmtr area forecast discussion national weather service san francisco bay area 135 pm pst Fri nov 15 2019 Synopsis The mostly cloudy conditions from earlier today have continued to transition to partly cloudy to mostly clear this afternoon. High pressure will build over the region Saturday through Monday with a warming and drying trend as light offshore winds develop in the hills. Cooling conditions will arrive by Tuesday as the ridge breaks down as the next front drops through the bay area by Wednesday but the best rain chances stay over the sierra and eventually southern california. Discussion As of 1:35 pm pst Friday... Visible satellite imagery continues to show a clearing trend throughout much of the region this early afternoon. Earlier this morning, some very spotty light rain showers bought a trace to a one-hundredth of an inch or two to parts of the north bay. High temperatures this afternoon will warm to low to mid 60s along the coast and middle 60s to low 70s for interior locations. These values equate to near-normal along the coast to around 2-6 degrees above normal across the interior. The national blend of models is suggesting another opportunity for some low clouds and patchy fog for coastal shoreline locations tomorrow morning. Additionally, some light northerly winds will develop overnight and into early tomorrow across the higher elevations of napa and sonoma counties, as well as the east bay. While these winds will be offshore, moderate relative humidity recoveries are expected to keep fire weather concerns minimal at this time. Upper level ridge is expected to develop over california this weekend, allowing for a warming trend to take place throughout the region. Wouldn't be surprised to see some interior north bay locations, parts of the santa clara valley near gilroy, and interior monterey san benito counties hit the upper 70s and even the low 80s for Sunday afternoon as both the GFS and NAM show 500 mb heights peaking around 588 decameters over the area (90th+ percentile for this time of year). Temperatures at the surface will correspond to about 10 to 20 degrees above climatology. Keeping an eye on potential fire weather concerns around the middle of next week as an upper level low drops south from the pacific northwest toward california. Confidence remains low at this point in time as there remains plenty of differences between models: the deterministic ECMWF drops the low center from the ca- or border south to point reyes and continues south offshore; and the GFS keeps the upper low center farther offshore. The san francisco-winnemucca surface pressure gradients are currently forecast to peak somewhere around the -7 to -10 mb range on Wednesday night and into early Thursday. Will continue keep a close eye on forecast trends over the next several days. Precipitation chances for the san francisco bay area over the next 7 days will unfortunately remain on the low side. The best opportunity of any sort of measurable rainfall (or snowfall) in |
the golden state will be in parts of southern california as well as the sierra nevada. Beyond this next week, the latest 12z ecmwf ensemble mean has actually trended drier in 1-2 week period compared to the 00z run with about 50% of the ensemble members indicating a tenth of an inch or less of rainfall at sfo. Through noon today, downtown san francisco has only observed 0.03" of rain since the start of the water year on october 1. This marks the 8th driest start to the water year on record since precipitation records were established in the city in 1849. That said, the dry start to the water year does not mean the entire year will end below normal. We only need to look back one year ago -- downtown san francisco also started off dry (0.21" from october 1 through november 14, 2018), but ended above normal thanks to above the wet conditions that arrived after the start of the new calendar year. Aviation As of 10:00 am pst Friday... For 18z tafs. Broken low clouds are slowly scattering out at this hour. Mainly clear skies expected inland today with lingering scattered clouds expected along the coast. A weak front will dissipate as it moves through today. As high pressure begins to build overhead this evening, low level moisture will result in some CIGS overnight. Confidence is low. Generally light winds will persist this morning with west winds developing this afternoon. Vicinity of ksfo... MVFR CIGS around 2700-2800 feet will linger through this morning then briefly scatter out early this afternoon. A weak front will move across the region today. MVFR cigs may return the evening with bases potentially lowering to ifr overnight tonight. Light winds this morning becoming westerly and breezy this afternoon. Sfo bridge approach... Similar to ksfo. Monterey bay terminals... MVFRVFR CIGS will scatter our shortly becomingVFR for the remainder of the morning. Light winds this morning becoming onshore this afternoon. Will see a return to MVFR CIGS this evening with bases lowering to 1000-2000 feet overnight. Marine As of 8:56 am pst Friday... Light rain along a cold front will occur this morning across the northern waters. Winds will shift to the northwest today behind a cold front and gradually increase through tonight. A relatively large, long period northwest swell will increase this morning and persist through Saturday. Wave heights around 10 feet with breezy to gusty northwest winds will create hazardous conditions for small crafts today through Saturday. Mtr watches warnings advisories Tngt Sca... Pigeon pt to pt pinos 0-10 nm until 9 pm sca... Pt arena to pt reyes 0-10 nm sca... Pt pinos to pt piedras blancas 0-10 nm sca... Pt arena to pigeon pt 10-60 nm sca... Pigeon pt to pt piedras blancas 10-60 nm sca... Pt reyes to pigeon pt 0-10 nm public forecast: rowe aviation: cw marine: st cw visit us at |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapWind History for Martinez-Amorco Pier, CA
(wind in knots) EDIT (on/off) Help| 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 | 1 PM | 2 PM | 3 PM | |
| Last 24hr | SW | SW | W | W | SW | SW | W | W | W | W | W | W | NW | NW | NW | NW | SW | W | W | W | NW | NW | W | SW |
| 1 day ago | NW | NW | NW | NW G14 | NW G13 | NW G15 | W G17 | W G16 | W | W G14 | W G16 | W | W | W G9 | W | W G8 | W | W | W G8 | NW G12 | W | W G14 | W G12 | SW G13 |
| 2 days ago | NE | -- | -- | S | SW | S | SW | -- | SW | SW | W | SW | W | W | SW | SW | SW | W | W | W | W | W | W | W |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Concord, Buchanan Field, CA | 6 mi | 67 min | N 4 | 10.00 mi | Fair | 70°F | 48°F | 46% | 1019.3 hPa |
| Oakland, Metro Oakland International Airport, CA | 15 mi | 67 min | WNW 12 | 10.00 mi | A Few Clouds | 67°F | 54°F | 63% | 1020.7 hPa |
| Hayward, Hayward Air Terminal, CA | 16 mi | 66 min | W 10 | 10.00 mi | Fair | 66°F | 54°F | 65% | 1021.5 hPa |
| Livermore, Livermore Municipal Airport, CA | 19 mi | 67 min | NW 7 | 10.00 mi | Fair | 70°F | 48°F | 46% | 1019.8 hPa |
| San Francisco, San Francisco International Airport, CA | 24 mi | 64 min | W 16 | 10.00 mi | Partly Cloudy | 66°F | 54°F | 65% | 1021.1 hPa |
Link to 5 minute data for KCCR
Wind History from CCR (wind in knots)
| 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 | 1 PM | 2 PM | 3 PM | 4 PM | |
| Last 24hr | W | SW | W | W | SW | W | SW | SW | SW | W | SW | W | W | Calm | Calm | Calm | Calm | Calm | Calm | Calm | E | NW | N | Calm |
| 1 day ago | NW | NW | Calm | Calm | Calm | W | W | W | Calm | SW | SW | W | SW | SW | SW | W | SW | S | S | S | SW | SW | W | W |
| 2 days ago | Calm | Calm | Calm | SE | Calm | S | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | N | N | NW | NW | NW |
Tide / Current Tables for Benicia, Carquinez Strait, California
EDIT Weekend mode (on/off) (on/off) Help One Week of DataBenicia
Click for Map
Fri -- 04:12 AM PST 3.91 feet High Tide
Fri -- 06:48 AM PST Sunrise
Fri -- 08:41 AM PST 2.16 feet Low Tide
Fri -- 09:49 AM PST Moonset
Fri -- 02:24 PM PST 5.62 feet High Tide
Fri -- 04:56 PM PST Sunset
Fri -- 07:39 PM PST Moonrise
Fri -- 10:06 PM PST -0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 04:12 AM PST 3.91 feet High Tide
Fri -- 06:48 AM PST Sunrise
Fri -- 08:41 AM PST 2.16 feet Low Tide
Fri -- 09:49 AM PST Moonset
Fri -- 02:24 PM PST 5.62 feet High Tide
Fri -- 04:56 PM PST Sunset
Fri -- 07:39 PM PST Moonrise
Fri -- 10:06 PM PST -0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 1.1 | 2.2 | 3 | 3.6 | 3.9 | 3.8 | 3.3 | 2.7 | 2.3 | 2.2 | 2.5 | 3.2 | 4.1 | 5 | 5.6 | 5.5 | 4.9 | 3.8 | 2.6 | 1.4 | 0.4 | -0.2 | -0.4 | -0.2 |
Tide / Current Tables for Oakland Harbor High Street Bridge, San Francisco Bay, California Current
EDIT (on/off) Help One Week of DataOakland Harbor High Street Bridge
Click for Map
Fri -- 02:12 AM PST -0.00 knots Slack
Fri -- 04:06 AM PST -0.89 knots Max Ebb
Fri -- 06:48 AM PST Sunrise
Fri -- 07:22 AM PST 0.00 knots Slack
Fri -- 09:49 AM PST Moonset
Fri -- 10:07 AM PST 1.11 knots Max Flood
Fri -- 12:53 PM PST -0.01 knots Slack
Fri -- 04:15 PM PST -1.86 knots Max Ebb
Fri -- 04:57 PM PST Sunset
Fri -- 07:40 PM PST Moonrise
Fri -- 08:24 PM PST 0.01 knots Slack
Fri -- 11:15 PM PST 1.71 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 02:12 AM PST -0.00 knots Slack
Fri -- 04:06 AM PST -0.89 knots Max Ebb
Fri -- 06:48 AM PST Sunrise
Fri -- 07:22 AM PST 0.00 knots Slack
Fri -- 09:49 AM PST Moonset
Fri -- 10:07 AM PST 1.11 knots Max Flood
Fri -- 12:53 PM PST -0.01 knots Slack
Fri -- 04:15 PM PST -1.86 knots Max Ebb
Fri -- 04:57 PM PST Sunset
Fri -- 07:40 PM PST Moonrise
Fri -- 08:24 PM PST 0.01 knots Slack
Fri -- 11:15 PM PST 1.71 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 1.4 | 0.9 | 0.2 | -0.5 | -0.9 | -0.8 | -0.5 | -0.1 | 0.3 | 0.8 | 1.1 | 1 | 0.5 | -0.1 | -0.7 | -1.4 | -1.8 | -1.8 | -1.3 | -0.8 | -0.2 | 0.5 | 1.3 | 1.7 |
Weather Map
(on/off) Help Weather Map
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 (18,4,5,8)
(on/off) Help
Ground Weather Radar Station Sacramento, CA
(on/off) Help
Ad by Google
|
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 numerious 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. |