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Marine Weather and Tides
Version 3.4 |
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it. 8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue. 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 7:18AM | Sunset 5:11PM | Friday January 15, 2021 12:31 PM PST (20:31 UTC) | Moonrise 9:25AM | Moonset 8:01PM | Illumination 6% | ![]() |
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 823 Am Pst Fri Jan 15 2021
Today..NE winds up to 10 kt. Patchy dense fog this morning.
Tonight..NW winds around 5 kt.
Sat..W winds around 5 kt.
Sat night..NW winds around 5 kt.
Sun..NE winds around 5 kt.
Sun night..NW winds up to 10 kt.
Martin luther king jr day..N winds 10 to 20 kt with gusts up to 25 kt.
Tue..N winds 10 to 20 kt with gusts up to 25 kt.
Today..NE winds up to 10 kt. Patchy dense fog this morning.
Tonight..NW winds around 5 kt.
Sat..W winds around 5 kt.
Sat night..NW winds around 5 kt.
Sun..NE winds around 5 kt.
Sun night..NW winds up to 10 kt.
Martin luther king jr day..N winds 10 to 20 kt with gusts up to 25 kt.
Tue..N winds 10 to 20 kt with gusts up to 25 kt.
PZZ500 823 Am Pst Fri Jan 15 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to locally breezy northwest winds across the waters through much of the weekend. Winds will shift more northerly Sunday and Sunday night and increase as offshore winds pick up over land. Occasional gale force gusts will be possible at that time across the northern outer waters. Moderate west to northwest swell will build through tonight resulting in hazardous seas conditions for small crafts into the weekend. A second larger long period northwest swell will arrive late Sunday.
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to locally breezy northwest winds across the waters through much of the weekend. Winds will shift more northerly Sunday and Sunday night and increase as offshore winds pick up over land. Occasional gale force gusts will be possible at that time across the northern outer waters. Moderate west to northwest swell will build through tonight resulting in hazardous seas conditions for small crafts into the weekend. A second larger long period northwest swell will arrive late Sunday.
7 Day Forecast for Marine Location Near Country Club, CA
Hourly EDIT Help
location: 37.97, -121.37 debug
Area Discussion for - Sacramento, CA
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS66 KSTO 151029 AFDSTO
Area Forecast Discussion National Weather Service Sacramento CA 229 AM PST Fri Jan 15 2021
SYNOPSIS. Dry weather into next week with areas of late night and morning valley fog. Well above average temperatures will continue into next week. Strong winds possible early next week.
DISCUSSION. Infrared satellite imagery reveals developing Tule Fog in the Central Valley this early Friday morning. Visibilities are already down to a quarter-mile at several airports. Consequently, a Dense Fog Advisory is in effect for the southern Sacramento Valley, the Delta, as well as the northern San Joaquin Valley through 11 AM PST Friday.
A broad upper level ridge parked about 400 miles west of Santa Barbara will promote another afternoon with temperatures well- above January normals. Most communities in the Sacramento Valley will max out in the 60s. Similar to yesterday, localized areas with lingering fog into the afternoon hours may struggle to get out of the upper 50s. For reference, normal high temperature for January 15 at Downtown Sacramento is 54 deg F and 55 deg F at Redding.
The offshore ridge is forecast to amplify over the weekend, leading to further warming across much of the Golden State. Unfortunately, this also means that dry conditions are forecast to prevail as we dive deeper into what is ordinarily the wettest time of the year.
A shortwave will ripple around the outer periphery of the upper level ridge late Sunday and into Monday, quickly diving south from the Pacific Northwest into California. A second piece of energy will drop south on Tuesday as an inside slider, reinforcing northeasterly, and potentially strong/damaging offshore flow. More on that in the extended discussion section . // Rowe
EXTENDED DISCUSSION (Tuesday THROUGH Friday). A closed off upper level low will be set up over SoCal with a strong Pacific high begining to build into NorCal. This will bring a strong pressure gradient over the region with strong north to east winds late Sunday night into Tuesday. NAEFS shows a band of anomalous winds (30+ year return intervals) for the wind component. Current forecast indicates wind gusts ranging from the 30 to 40 mph in the Valley and into the Delta, locally higher. There is the potential for higher wind gusts up to 70+ in favored gaps, canyons and ridgetops. Weakened or burned trees and limbs may fall in strong winds. Stay tuned for details.
Dry weather is expected for much of the extended period as we sit on the eastern edge of the Pacific high. The ridge will push west late in the week as a short wave trough digs down the coast. This may bring some light showers to the area. NBM guidance shows daytime temperatures gradually cooling down through the period, but highs could still remain above normal for mid January.
-CJM
AVIATION. Areas of IFR/LIFR from KMYV south due to fog and low cigs this morning. Conditions improve after 18z with VFR conditions expected by 20z. VFR conditions north of KMYV. Winds remain under 10 knots.
STO WATCHES/WARNINGS/ADVISORIES. Dense Fog Advisory until 11 AM PST this morning for Carquinez Strait and Delta-Central Sacramento Valley-Northern San Joaquin Valley-Southern Sacramento Valley.
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA | 28 mi | 43 min | ENE 1.9 G 4.1 | 53°F | 1027 hPa | |||
PCOC1 - 9415144 - Port Chicago, CA | 36 mi | 43 min | N 5.1 G 5.1 | 50°F | 52°F | 1027.1 hPa | ||
SFXC1 - San Francisco Bay Reserve, CA | 38 mi | 106 min | ESE 5.1 | 1028 hPa | ||||
MZXC1 - 9415102 - Martinez-Amorco CA | 40 mi | 43 min | NNE 4.1 G 5.1 | 50°F | 52°F | 1027.3 hPa | ||
UPBC1 | 40 mi | 43 min | E 4.1 G 5.1 | |||||
CQUC1 | 46 mi | 42 min | 52°F | |||||
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA | 48 mi | 43 min | E 11 G 13 | 56°F | 1026.4 hPa | |||
AAMC1 - 9414750 - Alameda, CA | 51 mi | 43 min | Calm G 1.9 | 58°F | 53°F | 1026.7 hPa |
Wind History for Port Chicago, CA
(wind in knots) EDIT (on/off)  Help12 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 | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | |
Last 24hr | E | E | E | NE | E | NW | SW | S | SW G5 | S | E | E | NW | NE | S | S | E | NE | E | N | SE | S | N | NE |
1 day ago | SW | W | W | N | N | NE | E | NE | E G11 | E | E | E G9 | E | E | E | -- | W | -- | W | SW | NE | NW | NE | E |
2 days ago | N | N | NW | E | N | E | E | E | SE | N | NW | S | SW | S | S | SW | SW | S | S | S | SW G9 | SW | S G10 | S |
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 |
Stockton, Stockton Metropolitan Airport, CA | 8 mi | 36 min | S 3 | 1.50 mi | Fog/Mist | 54°F | 50°F | 87% | 1026.6 hPa |
Link to 5 minute data for KSCK
Wind History from SCK (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 24hr | Calm | Calm | W | NW | NW | W | N | E | E | E | SE | E | NE | Calm | Calm | Calm | SE | SE | SE | E | NE | N | Calm | S |
1 day ago | N | NW | NW | W | NW | NW | N | NW | NW | W | W | W | W | W | W | W | Calm | Calm | E | E | Calm | Calm | NW | |
2 days ago | E | E | Calm | Calm | S | SW | W | W | Calm | Calm | Calm | N | NE | Calm | S | Calm | Calm | E | E | SE | Calm | Calm | Calm |
Tide / Current Tables for Blackslough Landing, San Joaquin River, California
EDIT Weekend mode (on/off) (on/off)  Help One Week of DataBlackslough Landing
Click for Map
Fri -- 02:06 AM PST -0.29 feet Low Tide
Fri -- 07:20 AM PST Sunrise
Fri -- 08:16 AM PST 3.37 feet High Tide
Fri -- 09:24 AM PST Moonrise
Fri -- 01:44 PM PST 1.25 feet Low Tide
Fri -- 05:10 PM PST Sunset
Fri -- 06:51 PM PST 3.89 feet High Tide
Fri -- 08:01 PM PST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 02:06 AM PST -0.29 feet Low Tide
Fri -- 07:20 AM PST Sunrise
Fri -- 08:16 AM PST 3.37 feet High Tide
Fri -- 09:24 AM PST Moonrise
Fri -- 01:44 PM PST 1.25 feet Low Tide
Fri -- 05:10 PM PST Sunset
Fri -- 06:51 PM PST 3.89 feet High Tide
Fri -- 08:01 PM PST Moonset
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 |
0.5 | -0 | -0.3 | -0.1 | 0.6 | 1.5 | 2.3 | 3 | 3.4 | 3.3 | 2.8 | 2.2 | 1.7 | 1.3 | 1.3 | 1.6 | 2.4 | 3.2 | 3.7 | 3.9 | 3.7 | 3.2 | 2.4 | 1.6 |
Tide / Current Tables for Vulcan Island .5 mi E, San Joaquin River, California Current
EDIT (on/off)  Help One Week of DataVulcan Island .5 mi E
Click for Map
Fri -- 03:04 AM PST 0.00 knots Slack
Fri -- 06:16 AM PST 0.63 knots Max Flood
Fri -- 07:20 AM PST Sunrise
Fri -- 09:24 AM PST Moonrise
Fri -- 09:43 AM PST -0.00 knots Slack
Fri -- 11:53 AM PST -0.24 knots Max Ebb
Fri -- 02:08 PM PST 0.00 knots Slack
Fri -- 04:47 PM PST 0.62 knots Max Flood
Fri -- 05:10 PM PST Sunset
Fri -- 07:58 PM PST -0.00 knots Slack
Fri -- 08:00 PM PST Moonset
Fri -- 11:41 PM PST -0.62 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 03:04 AM PST 0.00 knots Slack
Fri -- 06:16 AM PST 0.63 knots Max Flood
Fri -- 07:20 AM PST Sunrise
Fri -- 09:24 AM PST Moonrise
Fri -- 09:43 AM PST -0.00 knots Slack
Fri -- 11:53 AM PST -0.24 knots Max Ebb
Fri -- 02:08 PM PST 0.00 knots Slack
Fri -- 04:47 PM PST 0.62 knots Max Flood
Fri -- 05:10 PM PST Sunset
Fri -- 07:58 PM PST -0.00 knots Slack
Fri -- 08:00 PM PST Moonset
Fri -- 11:41 PM PST -0.62 knots Max Ebb
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 |
-0.6 | -0.5 | -0.3 | -0 | 0.3 | 0.5 | 0.6 | 0.6 | 0.4 | 0.2 | -0.1 | -0.2 | -0.2 | -0.2 | -0 | 0.3 | 0.6 | 0.6 | 0.5 | 0.3 | -0 | -0.3 | -0.5 | -0.6 |
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
Ground Weather Radar Station
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