Marine Weather and Tide Forecast for Discovery Bay, CA
April 30, 2025 10:27 AM PDT (17:27 UTC)
Change Location
Change Location
 | Sunrise 6:08 AM Sunset 7:56 PM Moonrise 7:09 AM Moonset 11:07 PM |
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 912 Am Pdt Wed Apr 30 2025
Today - SW wind 5 to 10 kt. Waves around 2 ft or less.
Tonight - SW wind 5 to 10 kt. Waves around 2 ft or less.
Thu - SW wind 5 to 10 kt. Waves around 2 ft or less.
Thu night - SW wind 10 to 15 kt. Waves around 2 ft or less.
Fri - SW wind 10 to 15 kt. Waves around 2 ft or less.
Fri night - W wind 15 to 20 kt. Waves around 2 ft or less.
Sat - W wind 15 to 20 kt. Waves around 2 ft or less.
Sat night - W wind 15 to 20 kt. Waves around 2 ft or less.
Sun - W wind 10 to 15 kt. Waves around 2 ft or less.
Sun night - W wind 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Waves around 2 ft or less in the evening.
PZZ500 912 Am Pdt Wed Apr 30 2025
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
high pressure over the eastern pacific and low pressure inland will maintain gusty northerly winds over the waters. NEar-gale force gusts will continue over the outer waters through Thursday morning along with rough seas. Strong northwesterly breezes return Friday afternoon, strengthening to become gale-force by Saturday. Rough seas return to the outer waters by Saturday.
high pressure over the eastern pacific and low pressure inland will maintain gusty northerly winds over the waters. NEar-gale force gusts will continue over the outer waters through Thursday morning along with rough seas. Strong northwesterly breezes return Friday afternoon, strengthening to become gale-force by Saturday. Rough seas return to the outer waters by Saturday.
7 Day Forecast for Marine Location Near Discovery Bay, CA
NEW! Add second zone forecast
| Borden Highway Bridge Click for Map Wed -- 02:46 AM PDT 1.03 feet Low Tide Wed -- 06:10 AM PDT Sunrise Wed -- 08:08 AM PDT Moonrise Wed -- 08:24 AM PDT 3.71 feet High Tide Wed -- 04:27 PM PDT -0.45 feet Low Tide Wed -- 07:56 PM PDT Sunset Wed -- 10:57 PM PDT 2.52 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Borden Highway Bridge, Middle River, San Joaquin River, California, Tide feet
| 12 am |
| 1.9 |
| 1 am |
| 1.4 |
| 2 am |
| 1.1 |
| 3 am |
| 1 |
| 4 am |
| 1.3 |
| 5 am |
| 1.8 |
| 6 am |
| 2.6 |
| 7 am |
| 3.3 |
| 8 am |
| 3.7 |
| 9 am |
| 3.6 |
| 10 am |
| 3.3 |
| 11 am |
| 2.6 |
| 12 pm |
| 1.8 |
| 1 pm |
| 1 |
| 2 pm |
| 0.4 |
| 3 pm |
| -0.1 |
| 4 pm |
| -0.4 |
| 5 pm |
| -0.4 |
| 6 pm |
| -0 |
| 7 pm |
| 0.6 |
| 8 pm |
| 1.3 |
| 9 pm |
| 2 |
| 10 pm |
| 2.4 |
| 11 pm |
| 2.5 |
| Vulcan Island .5 mi E Click for Map Wed -- 12:13 AM PDT -0.22 knots Max Ebb Wed -- 02:31 AM PDT 0.00 knots Slack Wed -- 05:30 AM PDT 0.80 knots Max Flood Wed -- 06:10 AM PDT Sunrise Wed -- 08:08 AM PDT Moonrise Wed -- 08:43 AM PDT -0.00 knots Slack Wed -- 12:14 PM PDT -0.68 knots Max Ebb Wed -- 04:47 PM PDT 0.00 knots Slack Wed -- 07:53 PM PDT 0.53 knots Max Flood Wed -- 07:55 PM PDT Sunset Wed -- 11:25 PM PDT -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Vulcan Island .5 mi E, San Joaquin River, California Current, knots
| 12 am |
| -0.2 |
| 1 am |
| -0.2 |
| 2 am |
| -0.1 |
| 3 am |
| 0.2 |
| 4 am |
| 0.5 |
| 5 am |
| 0.8 |
| 6 am |
| 0.8 |
| 7 am |
| 0.6 |
| 8 am |
| 0.3 |
| 9 am |
| -0.1 |
| 10 am |
| -0.4 |
| 11 am |
| -0.6 |
| 12 pm |
| -0.7 |
| 1 pm |
| -0.7 |
| 2 pm |
| -0.6 |
| 3 pm |
| -0.4 |
| 4 pm |
| -0.2 |
| 5 pm |
| 0.1 |
| 6 pm |
| 0.3 |
| 7 pm |
| 0.5 |
| 8 pm |
| 0.5 |
| 9 pm |
| 0.5 |
| 10 pm |
| 0.3 |
| 11 pm |
| 0.1 |
FXUS66 KSTO 292027 AFDSTO
Area Forecast Discussion National Weather Service Sacramento CA 127 PM PDT Tue Apr 29 2025
For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing.
Discussion
Synopsis
Two mostly minor impact weather systems to impact the area over the next 7 days. The first system will drop into the area Wednesday and bring a pretty good chance (40% to 60%) of showers and thunderstorms to foothills and higher terrain to areas south of Highway 50 tomorrow afternoon and evening. For the most part weather will be dry and mild until the stronger system moves into the area Saturday bringing cooler temperatures and widespread chance of light precipiitation...with light accumulations of snow above 6000 feet in the Sierra.
Key Messages
* Wednesday:
-Good chance (40-60%) of showers and thunderstorms mainly south of highway 50 afternoon and evening.
* Friday into Sunday -Cooling trend returns with chances of showers in the mountains, foothills, and northern Sacramento Valley.
-Isolated mountain thunderstorms possible with breezy onshore winds.
-Snow levels generally above pass levels on Friday then lowering on Saturday into Sunday, with light high elevation snowfall currently expected, though exact details remain uncertain at this point.
Changes from previous forecast
* Nothing significant
AVIATION
VFR conditions are expected over the next 24 hours, with surface winds less than 12 kts. West-northwest wind gusts 15-20 kts are expected over the Sierra between 21-03Z. Additionally, there is a 10-15% chance of isolated mountain thunderstorms between 23Z-06Z.
STO WATCHES/WARNINGS/ADVISORIES
None.
Area Forecast Discussion National Weather Service Sacramento CA 127 PM PDT Tue Apr 29 2025
For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing.
Discussion
Synopsis
Two mostly minor impact weather systems to impact the area over the next 7 days. The first system will drop into the area Wednesday and bring a pretty good chance (40% to 60%) of showers and thunderstorms to foothills and higher terrain to areas south of Highway 50 tomorrow afternoon and evening. For the most part weather will be dry and mild until the stronger system moves into the area Saturday bringing cooler temperatures and widespread chance of light precipiitation...with light accumulations of snow above 6000 feet in the Sierra.
Key Messages
* Wednesday:
-Good chance (40-60%) of showers and thunderstorms mainly south of highway 50 afternoon and evening.
* Friday into Sunday -Cooling trend returns with chances of showers in the mountains, foothills, and northern Sacramento Valley.
-Isolated mountain thunderstorms possible with breezy onshore winds.
-Snow levels generally above pass levels on Friday then lowering on Saturday into Sunday, with light high elevation snowfall currently expected, though exact details remain uncertain at this point.
Changes from previous forecast
* Nothing significant
AVIATION
VFR conditions are expected over the next 24 hours, with surface winds less than 12 kts. West-northwest wind gusts 15-20 kts are expected over the Sierra between 21-03Z. Additionally, there is a 10-15% chance of isolated mountain thunderstorms between 23Z-06Z.
STO WATCHES/WARNINGS/ADVISORIES
None.
Wind History for Port Chicago, CA
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Link to 1 hour of 5 minute data for KSCK
Terminal Aerodrome Forecast (TAF) for KSCK
Wind History Graph: SCK
(wind in knots)
GEOS Local Image of Central West Coast
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Sacramento, CA,
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