Sunday, March29, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Port Costa, 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 6:55AMSunset 7:30PM Sunday March 29, 2020 5:30 PM PDT (00:30 UTC) Moonrise 9:00AMMoonset 11:43PM Illumination 34% Phase: Waxing Crescent; Moon at 6 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- 207 Pm Pdt Sun Mar 29 2020
Today..S winds 5 to 15 kt, becoming W with gusts up to 25 kt this afternoon. Showers, mainly this morning.
Tonight..W winds 5 to 15 kt.
Mon..SW winds 5 to 15 kt.
Mon night..SW winds 5 to 15 kt.
Tue..W winds 10 to 20 kt with gusts up to 25 kt.
Tue night..NW winds 10 to 20 kt with gusts up to 30 kt.
Wed..NW winds 5 to 10 kt.
Thu..NW winds 5 to 10 kt.
PZZ500 207 Pm Pdt Sun Mar 29 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light winds will continue across the coastal waters into early this coming week as high pressure moves into the southern california waters. Northwest winds will increase mid week as an upper ridge builds over the eastern pacific and an upper low moves inland well north of california. Mixed swell will persist with a moderate northwest swell and a light southwesterly swell.


7 Day Forecast for Marine Location Near Port Costa, CA
   Hourly   EDIT   Help
location: 38.03, -122.15     debug


Area Discussion for - Sacramento, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KSTO 292132 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 232 PM PDT Sun Mar 29 2020

Synopsis. Rain and snow showers will continue through this evening. Threat of showers persists in the north Monday through Tuesday afternoon, otherwise drier and milder into mid-week.

Discussion. Scattered showers continue across the region this afternoon, mainly west of I-5 and the northern Sierra. Precipitation amounts have ranged from less than 0.05" in the Valley to around 0.05" to 0.50" in the northern mountains and northern Sierra today. Profiler at Colfax shows snow levels currently at around 5000 feet. Additional snow accumulations through this evening will be light, generally less than an inch. Cloudy skies are preventing thunderstorm development this afternoon. Precipitation activity tapers off for most areas this evening as the trough shifts to the east.

A weather system tracking through the Pacific NW will bring a threat of showers to portions of interior NorCal Monday through Tuesday afternoon. Given that best dynamics will remain north of the forecast area, shower chances will be limited to the northern Sacramento Valley, and higher elevations north of I-80. QPF amounts have trended wetter with this system; currently expecting 0.35"-1" (locally up to around 2") in Shasta County and 0.10-0.50" elsewhere. Snow levels are forecast to be from 4500-6000 feet, with snow accumulations in the 1 to 3 inch range except for higher amounts over Lassen National Park. Elsewhere, cloudy skies and dry weather will prevail. Breezy south winds are possible Monday through early Tuesday; gusts up to 15-20 mph are possible.

Regarding temperatures, highs are forecast to warm up slightly each day, and will be near average by Wednesday. Forecast highs on Wednesday will be 5 to 10 degrees warmer than Monday, with Valley highs in the 60s.

EXTENDED DISCUSSION (Thursday THROUGH Sunday). Deterministic and ensemble guidance have trended toward a cooler solution in the extended instead of an amplifying ridge. High temperatures are expected to reach the mid 60s to low 70s across the Valley, while mountain locations will be in the low 40s to upper 50s. An unsettled pattern may return next weekend into early next week as disturbances drop down from the north into the region. Confidence in precipitation amounts and coverage is low this far out given that model solutions diverge significantly.

AVIATION. MVFR cigs expected thru 22Z at RBL/RDD with MVFR cigs returning after 12Z at these terminals. Elsewhere, VFR conditions are expected with winds generally under 12 knots. Breezy south winds and chance of rain at northern Sac Valley terminals after 18Z tomorrow.

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 TempWater Temp WavesPressureDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 1 mi43 min SW 1.9 G 1.9 57°F 58°F1019.8 hPa
UPBC1 2 mi43 min W 1.9 G 2.9
PCOC1 - 9415144 - Port Chicago, CA 6 mi43 min W 5.1 G 6 57°F 58°F1019.5 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 6 mi43 min W 8 G 11 58°F 1019.6 hPa
SFXC1 - San Francisco Bay Reserve, CA 13 mi106 min W 5.1
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 14 mi49 min NW 7 G 9.9 60°F 1019.4 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 14 mi43 min SW 7 G 9.9 58°F 1020.3 hPa
RCMC1 - 9414863 - Richmond, CA 16 mi43 min SW 5.1 G 8 57°F 57°F1019.7 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi43 min WNW 8 G 9.9 56°F 1020.1 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi49 min W 6 G 8
LNDC1 18 mi43 min W 6 G 8 58°F 1020 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 18 mi39 min W 1.9 58°F 1020 hPa (-1.0)
OBXC1 19 mi43 min 57°F 51°F
AAMC1 - 9414750 - Alameda, CA 20 mi43 min W 6 G 7 57°F 58°F1020.2 hPa
PXSC1 20 mi43 min 58°F 51°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi43 min WSW 8.9 G 12 57°F 1019.1 hPa
FTPC1 - 9414290 - San Francisco, CA 23 mi43 min 58°F
46237 - San Francisco Bar, CA (142) 31 mi31 min 57°F3 ft
RTYC1 - 9414523 - Redwood City, CA 36 mi43 min W 8 G 8.9 58°F 59°F1020.1 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi31 min W 1.9 G 3.9 57°F 57°F1020.7 hPa (-0.4)

Wind History for Martinez-Amorco Pier, CA
(wind in knots)    EDIT      (on/off)   Help
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
SW9
G13
SW10
G13
SW10
G13
SW6
G9
SW5
SW4
E1
S3
SW3
S3
S2
S7
S5
S6
SE3
NE2
E5
NE3
NE4
NE4
NE5
N3
W4
SW2
1 day
ago
W12
G16
SW8
SW11
G14
SW4
G9
W7
G10
W9
W10
W8
G11
SW4
SW5
W4
W4
W3
SW2
SW2
W4
W4
--
NW2
NW3
NW2
W2
W6
W6
G11
2 days
ago
W10
W16
W15
G19
W14
W11
W9
W8
W14
W11
W14
G17
SW6
SW8
SW5
G8
SW7
SW8
W10
W14
W13
G18
W11
G15
W12
G15
W16
W12
G18
W14
G17
W14
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 mi38 minW 310.00 miOvercast58°F48°F72%1018.4 hPa
Napa, Napa County Airport, CA14 mi37 minWSW 710.00 miOvercast61°F50°F67%1018.7 hPa
Fairfield / Travis Air Force Base, CA21 mi93 minN 010.00 miOvercast62°F45°F56%1020.3 hPa
Oakland, Metro Oakland International Airport, CA23 mi38 minW 1010.00 miMostly Cloudy61°F48°F65%1020.1 hPa
Novato / Gnoss Field, CA23 mi56 minN 810.00 miMostly Cloudy63°F53°F73%1020 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
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
5
PM
Last 24hrW7SW10CalmS4S4S3SE3S4S3CalmS4SW33SE3CalmCalmSW3CalmNE3NW6N4NW8W7W3
1 day agoSW13SW9SW8SW6S6CalmCalmS3CalmS4S4CalmS3S6S6S5S5S5S4S5NE5NE3SE7SW4
2 days agoW14W13W7SW5S7SW5S6S6S4S5S6SW6S5SW8S6SW6SW10SW10SW11W11
G18
W12SW13SW14SW12

Tide / Current Tables for Benicia, Carquinez Strait, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Benicia
Click for Map
Sun -- 04:40 AM PDT     5.31 feet High Tide
Sun -- 06:57 AM PDT     Sunrise
Sun -- 09:59 AM PDT     Moonrise
Sun -- 12:03 PM PDT     0.53 feet Low Tide
Sun -- 07:04 PM PDT     3.57 feet High Tide
Sun -- 07:29 PM PDT     Sunset
Sun -- 11:27 PM PDT     2.15 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
2.12.73.64.65.25.34.84.13.121.20.70.50.71.11.72.53.13.43.63.432.52.2

Tide / Current Tables for Carquinez Strait, California Current
   EDIT      (on/off)   Help   One Week of Data
Carquinez Strait
Click for Map
Sun -- 12:49 AM PDT     0.00 knots Slack
Sun -- 03:43 AM PDT     2.24 knots Max Flood
Sun -- 06:38 AM PDT     -0.00 knots Slack
Sun -- 06:57 AM PDT     Sunrise
Sun -- 10:00 AM PDT     Moonrise
Sun -- 10:04 AM PDT     -2.81 knots Max Ebb
Sun -- 02:27 PM PDT     0.00 knots Slack
Sun -- 05:10 PM PDT     1.41 knots Max Flood
Sun -- 07:29 PM PDT     Sunset
Sun -- 08:49 PM PDT     -0.00 knots Slack
Sun -- 11:06 PM PDT     -0.99 knots Max Ebb
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
-0.70.21.222.21.70.7-0.4-1.6-2.5-2.8-2.6-2-1.3-0.40.51.21.41.31.10.6-0.1-0.7-1

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 Sacramento, CA (20,4,5,8)
      (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.