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Marine Weather and Tides
Version 3.4 |
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 6:20AM | Sunset 7:59PM | Saturday August 17, 2019 6:35 AM PDT (13:35 UTC) | Moonrise 8:29PM | Moonset 7:14AM | Illumination 96% |  |
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 314 Am Pdt Sat Aug 17 2019
.small craft advisory in effect from 3 pm pdt this afternoon through this evening...
Today..SW winds 15 to 25 kt with gusts up to 30 kt.
Tonight..SW winds 15 to 25 kt with gusts up to 30 kt...decreasing to 10 to 20 kt by midnight.
Sun..SW winds 10 to 20 kt with gusts up to 25 kt.
Sun night..SW winds 10 to 15 kt.
Mon..SW winds 10 to 15 kt.
Mon night..SW winds 10 to 15 kt.
Tue..SW winds 10 to 15 kt.
Wed..W winds 15 to 20 kt.
.small craft advisory in effect from 3 pm pdt this afternoon through this evening...
Today..SW winds 15 to 25 kt with gusts up to 30 kt.
Tonight..SW winds 15 to 25 kt with gusts up to 30 kt...decreasing to 10 to 20 kt by midnight.
Sun..SW winds 10 to 20 kt with gusts up to 25 kt.
Sun night..SW winds 10 to 15 kt.
Mon..SW winds 10 to 15 kt.
Mon night..SW winds 10 to 15 kt.
Tue..SW winds 10 to 15 kt.
Wed..W winds 15 to 20 kt.
PZZ500 314 Am Pdt Sat Aug 17 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to gusty northwesterly winds will continue over the northern and outer waters into Sunday as high pressure remains over the eastern pacific. This high pressure will begin to weaken into Sunday before a strong low pressure center develops and approaches british columbia early next week. The persistent fetch produced by these systems will generate fresh short period swell that will propagate into the california coastal waters. This short period swell in combination with gusty winds will generate hazardous seas conditions, particularly for smaller vessels.
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to gusty northwesterly winds will continue over the northern and outer waters into Sunday as high pressure remains over the eastern pacific. This high pressure will begin to weaken into Sunday before a strong low pressure center develops and approaches british columbia early next week. The persistent fetch produced by these systems will generate fresh short period swell that will propagate into the california coastal waters. This short period swell in combination with gusty winds will generate hazardous seas conditions, particularly for smaller vessels.
7 Day Forecast for Marine Location Near Elverta, CA
Hourly EDIT Helplocation: 38.71, -121.58 debug
Area Discussion for - Sacramento, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 ksto 171001 afdsto area forecast discussion national weather service sacramento ca 301 am pdt Sat aug 17 2019 Synopsis Temperature will cool over the weekend with below average temperatures by Sunday. Warming slowly through next week to a little above average with triple digits in the valley by mid-week. No precipitation expected over interior norcal through the extended period. Discussion Relative to last night, most locations have seen a notable decrease in overnight temperatures, generally in the 5 to 10 degree range. The erosion of the four corners ridge has allowed mid-level heights to lower over northern california. Further amplification in the northern stream flow this weekend will allow temperatures to move below average by Sunday. Valley highs will range from the mid upper 80s sacramento southward to the low 90s over the northern sacramento valley. Such readings should continue into Monday, thus offering some relief after multiple days in the triple digits. The shift in the pattern will also support a significant uptick in the delta breeze. Through Monday morning, sustained wind speeds |
around the delta region should be in the 25 to 35 mph accompanied by higher gusts. The resultant southerly flow across the valley will offer the noted relief from the earlier week hot temperatures. Given the enhanced marine influence to the air mass, there will likely be an increase in low clouds extending out of the delta the next couple of nights mornings. This is supported by nam model soundings as well as the href probabilities. Looking beyond Monday, a strengthening trough off the coast will build heights across the state by Tuesday. This ultimately brings temperatures to near average after a multi-day cool down. ~bro Extended discussion (Wednesday through Saturday) Ensembles show high pressure peaking over the area around mid- week before weakening slightly as a weak trough develops along the west coast later next week. Temperatures will be around 5-10 degrees above average for late-august mid-week, cooling to slightly above average toward the end of the week. && Aviation Vfr conditions next 24 hours. Local southwesterly wind gusts 25-35 kts vicinity carquinez strait and west delta. Areas southerly wind gusts 15-25 kts sacramento valley 22z-06z Sunday. Lighter winds elsewhere. Sto watches warnings advisories None. |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| SFXC1 - San Francisco Bay Reserve, CA | 42 mi | 111 min | WNW 9.9 | 59°F | 1008 hPa | 57°F | ||
| PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA | 49 mi | 48 min | WNW 15 G 21 | 64°F | 1007.3 hPa | |||
| PCOC1 - 9415144 - Port Chicago, CA | 51 mi | 48 min | W 16 G 21 | 62°F | 73°F | 1008.4 hPa | ||
| RCMC1 - 9414863 - Richmond, CA | 70 mi | 48 min | 67°F |
Wind History for Port Chicago, CA
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | |
| Last 24hr | SW | SW | W | W | W | W G14 | W | W | W | W | W | SW G19 | SW | W | SW | W | W | W G22 | W | W | W | W | W | W |
| 1 day ago | SW | SW G7 | W | W | W | NW | NW | W | W | W | W | W | W | W G15 | SW | SW G10 | SW | SW | SW | SW | W | W | W | SW |
| 2 days ago | SW | SW | SW | W | W | NW | NW | W | NW | W | W | W | W | W G15 | S | SW G9 | SW G9 | SW G9 | S | SW | SW | SW | SW | SW G8 |
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 |
| Sacramento International Airport, CA | 1 mi | 1.7 hrs | S 11 | 10.00 mi | Fair | 65°F | 55°F | 70% | 1006.1 hPa |
| Sacramento, McClellan Airfield Airport, CA | 10 mi | 76 min | S 9 G 16 | mi | Fair | 66°F | 55°F | 68% | 1007.8 hPa |
| Sacramento Executive Airport, CA | 14 mi | 1.7 hrs | S 7 | 10.00 mi | Fair | 63°F | 55°F | 78% | 1007.1 hPa |
| University Airport, CA | 16 mi | 81 min | S 5 | 10.00 mi | Fair | 64°F | 55°F | 73% | 1006.4 hPa |
| Sacramento Mather Airport, CA | 18 mi | 1.8 hrs | SW 3 | 10.00 mi | Clear | 64°F | 55°F | 73% | 1007.1 hPa |
| Lincoln Regional Karl Harder Field, CA | 18 mi | 81 min | SSE 11 | 10.00 mi | Fair | 70°F | 53°F | 57% | 1006.8 hPa |
Link to 5 minute data for KSMF
Wind History from SMF (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | |
| Last 24hr | NW | W | N | W | SW | S | S | S | S | SE | SE | S | S | S | ||||||||||
| 1 day ago | N | N | N | NW | NW | NW | W | NW | W | S | S | S | S | S | S | SE | SE | |||||||
| 2 days ago | Calm | N | N | N | N | N | NW | N | NW | NW | SW | Calm | S | S | S | SE | SE | SE | Calm | Calm | NW |
Tide / Current Tables for Sacramento #4, Sacramento River, California
EDIT Weekend mode (on/off) (on/off) Help One Week of DataSacramento #4
Click for Map
Sat -- 04:26 AM PDT 0.77 feet Low Tide
Sat -- 06:21 AM PDT Sunrise
Sat -- 08:14 AM PDT Moonset
Sat -- 08:23 AM PDT 2.93 feet High Tide
Sat -- 05:01 PM PDT 0.08 feet Low Tide
Sat -- 07:57 PM PDT Sunset
Sat -- 09:28 PM PDT Moonrise
Sat -- 10:02 PM PDT 2.66 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 04:26 AM PDT 0.77 feet Low Tide
Sat -- 06:21 AM PDT Sunrise
Sat -- 08:14 AM PDT Moonset
Sat -- 08:23 AM PDT 2.93 feet High Tide
Sat -- 05:01 PM PDT 0.08 feet Low Tide
Sat -- 07:57 PM PDT Sunset
Sat -- 09:28 PM PDT Moonrise
Sat -- 10:02 PM PDT 2.66 feet High 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 |
| 2.1 | 1.6 | 1.3 | 1 | 0.8 | 0.9 | 1.5 | 2.4 | 2.9 | 2.9 | 2.7 | 2.3 | 1.8 | 1.3 | 0.8 | 0.4 | 0.2 | 0.1 | 0.3 | 1 | 1.8 | 2.4 | 2.7 | 2.6 |
Tide / Current Tables for Clarksburg #4, Sacramento River, California
EDIT (on/off) Help One Week of DataClarksburg #4
Click for Map
Sat -- 02:56 AM PDT 0.77 feet Low Tide
Sat -- 06:22 AM PDT Sunrise
Sat -- 07:14 AM PDT 2.93 feet High Tide
Sat -- 08:14 AM PDT Moonset
Sat -- 03:31 PM PDT 0.08 feet Low Tide
Sat -- 07:57 PM PDT Sunset
Sat -- 08:53 PM PDT 2.66 feet High Tide
Sat -- 09:28 PM PDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 02:56 AM PDT 0.77 feet Low Tide
Sat -- 06:22 AM PDT Sunrise
Sat -- 07:14 AM PDT 2.93 feet High Tide
Sat -- 08:14 AM PDT Moonset
Sat -- 03:31 PM PDT 0.08 feet Low Tide
Sat -- 07:57 PM PDT Sunset
Sat -- 08:53 PM PDT 2.66 feet High Tide
Sat -- 09:28 PM PDT Moonrise
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 |
| 1.5 | 1.1 | 0.9 | 0.8 | 1.1 | 1.8 | 2.6 | 2.9 | 2.9 | 2.6 | 2.2 | 1.7 | 1.1 | 0.6 | 0.3 | 0.1 | 0.1 | 0.6 | 1.3 | 2 | 2.5 | 2.7 | 2.5 | 2.2 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES 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 Sacramento, CA (9,2,3,4)
(on/off) Help
Ground Weather Radar Station Sacramento, CA
(on/off) Help
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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. |