Marine Weather and Tide Forecast for Copperopolis, CA
 | Sunrise 5:54 AM Sunset 8:05 PM Moonrise 7:36 PM Moonset 4:32 AM |
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 240 Am Pdt Mon May 12 2025
Rest of tonight - SW wind 5 to 10 kt. Waves around 2 ft or less. A slight chance of rain, then a chance of rain late.
Mon - SW wind 10 to 15 kt. Waves around 2 ft or less. A chance of rain in the morning.
Mon night - W wind 10 to 15 kt. Waves around 2 ft or less.
Tue - NW wind 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Waves around 2 ft or less.
Tue night - W wind 15 to 20 kt, becoming sw 10 to 15 kt after midnight. Waves around 2 ft or less.
Wed - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less.
Wed night - W wind 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Waves around 2 ft or less.
Thu - SW wind 5 to 10 kt. Waves around 2 ft or less.
Thu night - SW wind 5 to 10 kt. Waves around 2 ft or less.
Fri - SW wind 5 to 10 kt. Waves around 2 ft or less.
Fri night - SW wind 10 to 15 kt. Waves around 2 ft or less.
PZZ500 240 Am Pdt Mon May 12 2025
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
a cold front will bring light rainfall and fresh westerly breezes today. There's around a 10% chance for Thunderstorms today into tomorrow which would pose the threats of lightning, small hail, and locally heavy rainfall and gusty winds. Hazardous marine conditions are expected through the week with rough seas and gale force gusts expected.
a cold front will bring light rainfall and fresh westerly breezes today. There's around a 10% chance for Thunderstorms today into tomorrow which would pose the threats of lightning, small hail, and locally heavy rainfall and gusty winds. Hazardous marine conditions are expected through the week with rough seas and gale force gusts expected.
7 Day Forecast for Marine Location Near Copperopolis, CA
NEW! Add second zone forecast
| Bishop Cut Click for Map Mon -- 12:06 AM PDT 1.13 feet Low Tide Mon -- 05:36 AM PDT Moonset Mon -- 05:57 AM PDT 4.01 feet High Tide Mon -- 05:57 AM PDT Sunrise Mon -- 09:58 AM PDT Full Moon Mon -- 01:46 PM PDT -0.25 feet Low Tide Mon -- 08:04 PM PDT 2.83 feet High Tide Mon -- 08:07 PM PDT Sunset Mon -- 08:39 PM PDT Moonrise Tide / Current data from XTide NOT FOR NAVIGATION |
Bishop Cut, Disappointment Slough, San Joaquin River, California, Tide feet
| 12 am |
| 1.1 |
| 1 am |
| 1.3 |
| 2 am |
| 1.7 |
| 3 am |
| 2.5 |
| 4 am |
| 3.3 |
| 5 am |
| 3.8 |
| 6 am |
| 4 |
| 7 am |
| 3.8 |
| 8 am |
| 3.3 |
| 9 am |
| 2.5 |
| 10 am |
| 1.7 |
| 11 am |
| 0.9 |
| 12 pm |
| 0.3 |
| 1 pm |
| -0.1 |
| 2 pm |
| -0.2 |
| 3 pm |
| 0.1 |
| 4 pm |
| 0.7 |
| 5 pm |
| 1.4 |
| 6 pm |
| 2.1 |
| 7 pm |
| 2.6 |
| 8 pm |
| 2.8 |
| 9 pm |
| 2.7 |
| 10 pm |
| 2.2 |
| 11 pm |
| 1.7 |
| Brandt Bridge Click for Map Mon -- 12:10 AM PDT -0.44 knots Max Ebb Mon -- 02:48 AM PDT 0.00 knots Slack Mon -- 05:29 AM PDT 0.65 knots Max Flood Mon -- 05:36 AM PDT Moonset Mon -- 05:57 AM PDT Sunrise Mon -- 08:09 AM PDT -0.00 knots Slack Mon -- 09:58 AM PDT Full Moon Mon -- 12:37 PM PDT -1.12 knots Max Ebb Mon -- 04:54 PM PDT 0.00 knots Slack Mon -- 07:45 PM PDT 0.50 knots Max Flood Mon -- 08:06 PM PDT Sunset Mon -- 08:38 PM PDT Moonrise Mon -- 10:17 PM PDT -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Brandt Bridge, San Joaquin River, California Current, knots
| 12 am |
| -0.4 |
| 1 am |
| -0.4 |
| 2 am |
| -0.2 |
| 3 am |
| 0.1 |
| 4 am |
| 0.4 |
| 5 am |
| 0.6 |
| 6 am |
| 0.6 |
| 7 am |
| 0.4 |
| 8 am |
| 0.1 |
| 9 am |
| -0.4 |
| 10 am |
| -0.7 |
| 11 am |
| -1 |
| 12 pm |
| -1.1 |
| 1 pm |
| -1.1 |
| 2 pm |
| -1 |
| 3 pm |
| -0.8 |
| 4 pm |
| -0.4 |
| 5 pm |
| 0 |
| 6 pm |
| 0.3 |
| 7 pm |
| 0.5 |
| 8 pm |
| 0.5 |
| 9 pm |
| 0.4 |
| 10 pm |
| 0.1 |
| 11 pm |
| -0.2 |
FXUS66 KSTO 112039 AFDSTO
Area Forecast Discussion National Weather Service Sacramento CA 139 PM PDT Sun May 11 2025
For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing.
Discussion
Synopsis
Gusty southerly winds and low relative humidity bring elevated fire weather conditions across the Sacramento Valley today. A weather system will bring chances for light showers, mountain snow showers and isolated thunderstorms Monday through Tuesday. Drier weather will follow with seasonable temperatures and occasionally breezy winds.
Key Messages
* Today: -Gusty southerly winds develop today ahead of an approaching weather system -Wind Advisory is in effect through 1 AM Monday for the northeast foothills and the northern/central Sacramento Valley, strongest winds along and east of I-5 mainly from Chico northward with gusts of 40 to 50 mph -Elevated fire weather conditions today as gusty southerly winds and low relative humidity overlap in the Sacramento Valley
* Monday - Tuesday: -Light showers and mountain snow showers expected as the weather system moves through -50-80% probability of rain > 0.25" mainly across northern Sacramento Valley, northern Sierra north of Hwy 50, and adjacent foothills -15-30% probability of isolated thunderstorms Monday and Tuesday, highest across north/central Sacramento Valley, foothills and mountains -20-50% probability of 2" snow along the Sierra above 5500 feet, 70-90% probability in the southern Cascades/Lassen Peak
* Mid to Late Week: -Dry weather, seasonable temperatures and occasionally breezy winds
Changes from previous forecast
-Potential for elevated fire weather conditions in the Valley from increased north to east flow late next weekend
AVIATION
VFR conditions across all TAF sites next 24 hours. Gusty southerly winds 15-25 kts in the lower elevations with gusts 20-40 kts, and 30-50 kts gusts over the Sierra out of the southwest until 08z Monday, and again after 12z Monday with gusts up to 25-30 kts in the Valley and up to 30-40 kts over the mountains.
There is a 10-30% chance of isolated thunderstorms across the northern Sacramento Valley, foothills, and mountains from 18z Monday - 03z Tuesday, with brief periods of MVFR conditions. Gusty and erratic winds near thunderstorms.
STO WATCHES/WARNINGS/ADVISORIES
Wind Advisory until 1 AM PDT Monday for Central Sacramento Valley-Northeast Foothills/Sacramento Valley-Northern Sacramento Valley.
Area Forecast Discussion National Weather Service Sacramento CA 139 PM PDT Sun May 11 2025
For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing.
Discussion
Synopsis
Gusty southerly winds and low relative humidity bring elevated fire weather conditions across the Sacramento Valley today. A weather system will bring chances for light showers, mountain snow showers and isolated thunderstorms Monday through Tuesday. Drier weather will follow with seasonable temperatures and occasionally breezy winds.
Key Messages
* Today: -Gusty southerly winds develop today ahead of an approaching weather system -Wind Advisory is in effect through 1 AM Monday for the northeast foothills and the northern/central Sacramento Valley, strongest winds along and east of I-5 mainly from Chico northward with gusts of 40 to 50 mph -Elevated fire weather conditions today as gusty southerly winds and low relative humidity overlap in the Sacramento Valley
* Monday - Tuesday: -Light showers and mountain snow showers expected as the weather system moves through -50-80% probability of rain > 0.25" mainly across northern Sacramento Valley, northern Sierra north of Hwy 50, and adjacent foothills -15-30% probability of isolated thunderstorms Monday and Tuesday, highest across north/central Sacramento Valley, foothills and mountains -20-50% probability of 2" snow along the Sierra above 5500 feet, 70-90% probability in the southern Cascades/Lassen Peak
* Mid to Late Week: -Dry weather, seasonable temperatures and occasionally breezy winds
Changes from previous forecast
-Potential for elevated fire weather conditions in the Valley from increased north to east flow late next weekend
AVIATION
VFR conditions across all TAF sites next 24 hours. Gusty southerly winds 15-25 kts in the lower elevations with gusts 20-40 kts, and 30-50 kts gusts over the Sierra out of the southwest until 08z Monday, and again after 12z Monday with gusts up to 25-30 kts in the Valley and up to 30-40 kts over the mountains.
There is a 10-30% chance of isolated thunderstorms across the northern Sacramento Valley, foothills, and mountains from 18z Monday - 03z Tuesday, with brief periods of MVFR conditions. Gusty and erratic winds near thunderstorms.
STO WATCHES/WARNINGS/ADVISORIES
Wind Advisory until 1 AM PDT Monday for Central Sacramento Valley-Northeast Foothills/Sacramento Valley-Northern Sacramento Valley.
Wind History for Port Chicago, CA
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KO22
Terminal Aerodrome Forecast (TAF) for KO22
Wind History Graph: O22
(wind in knots)
GEOS Local Image of Central West Coast
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Sacramento, CA,
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