Marine Weather and Tide Forecast for Bolinas, CA
April 30, 2024 9:02 AM PDT (16:02 UTC) Change Location
 | Sunrise 6:13 AM Sunset 8:01 PM Moonrise 1:04 AM Moonset 10:33 AM |
PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 854 Am Pdt Tue Apr 30 2024
.gale warning in effect through late tonight - .
Today - NW winds 25 to 35 knots with gusts up to 40 knots. Wind waves 10 to 12 ft. NW swell 2 to 4 ft at 11 seconds.
Tonight - NW winds 20 to 30 knots with gusts up to 40 knots. Wind waves 10 to 12 ft. NW swell 2 to 4 ft at 12 seconds and sw around 2 ft at 18 seconds.
Wed - NW winds 10 to 20 knots with gusts up to 30 knots. Wind waves 7 to 9 ft. NW swell 2 to 4 ft at 12 seconds and sw around 2 ft at 18 seconds.
Wed night - NW winds 20 to 30 knots with gusts up to 40 knots. Wind waves 7 to 9 ft. NW swell 2 to 3 ft at 11 seconds.
Thu - NW winds 15 to 25 knots with gusts up to 35 knots. Wind waves 5 to 7 ft. NW swell 2 to 4 ft at 9 seconds.
Thu night - NW winds 20 to 30 knots with gusts up to 40 knots. Wind waves 5 to 7 ft. NW swell around 2 ft at 9 seconds.
Fri - NW winds 15 to 20 knots with gusts up to 25 knots. Wind waves 4 to 5 ft.
Sat - NW winds 10 to 15 knots with gusts up to 25 knots. Wind waves 4 to 6 ft. NW swell 3 to 5 ft and sw around 2 ft. A chance of rain.
- .san francisco bar/fourfathom bank forecast - - .
in the deep water channel - .mixed seas of 4 to 6 ft at 9 seconds.
across the bar - .mixed seas of 5 to 7 ft at 9 seconds. Maximum ebb current of 1.0 kt at 11:26 pm Tuesday and 2.2 kt at 10:10 am Wednesday.
in the deep water channel - .mixed seas of 4 to 6 ft at 9 seconds.
across the bar - .mixed seas of 5 to 7 ft at 9 seconds. Maximum ebb current of 1.0 kt at 11:26 pm Tuesday and 2.2 kt at 10:10 am Wednesday.
PZZ500 854 Am Pdt Tue Apr 30 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
strong winds persist through Friday, with gale force gusts of 40 to 45 knots are possible over the outer waters and portions of the immediate coast near point reyes and point sur through much of the week. The strong winds will result in hazardous seas and steep wind waves with significant wave heights reaching 10 to 14 feet in the outer waters. Conditions will gradually improve over the weekend and into next week as winds begin to ease. Chances of rain begin early Saturday as a trough descends over the region.
strong winds persist through Friday, with gale force gusts of 40 to 45 knots are possible over the outer waters and portions of the immediate coast near point reyes and point sur through much of the week. The strong winds will result in hazardous seas and steep wind waves with significant wave heights reaching 10 to 14 feet in the outer waters. Conditions will gradually improve over the weekend and into next week as winds begin to ease. Chances of rain begin early Saturday as a trough descends over the region.
Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 301555 AFDMTR
Area Forecast Discussion National Weather Service San Francisco CA 855 AM PDT Tue Apr 30 2024
New UPDATE, MARINE
SYNOPSIS
Issued at 133 AM PDT Tue Apr 30 2024
High pressure brings quiet weather and slowly warming temperatures this week. Breezy onshore winds will keep temperatures along the coast cooler however. Cooler and more unsettled conditions return this weekend into next week with light rain chances in the forecast.
UPDATE
Issued at 854 AM PDT Tue Apr 30 2024
Low clouds continue to dissipate across the Santa Clara Valley and the Santa Cruz Mountains this morning while they are hanging around the Monterey Bay region. However, conditions will continue to improve throughout the morning with mostly sunny conditions this afternoon. Breezy northwest winds will also prevail and strengthen this afternoon with gale force gusts out over the ocean. No changes anticipated to the ongoing forecast.
SHORT TERM
(Today and tonight)
Issued at 203 AM PDT Tue Apr 30 2024
Dry conditions prevailing with high pressure from the offshore waters to far northern California and the Pacific Northwest.
Gusty northwest winds continue over the coastal waters. Forecast highs today 60s near the coast and bays to the 70s inland.
LONG TERM
(Wednesday through Monday)
Issued at 203 AM PDT Tue Apr 30 2024
Dry conditions prevailing through mid-week. A slowly retrograding long wave trough along the West Coast varies in strength late week and early next week. There is a large difference between recent GFS (wet) and ECMWF (not nearly as wet as the GFS) in calculating the trajectory/progression of a low pressure system moving through the long wave trough, now well within 120 hours (5 days) forecast. QPF differences are showing up in the GEFS and EPS as well, though recent EPS have increased a little. As of current, it remains a low confidence forecast from a global model forecast perspective. Given the model forecast trajectory of the low pressure system is from near the Bering Sea/Aleutians southeastward across the Pacific (and surface high pressure over the Pacific retrogrades)
where below normal sea surface temperatures exist including a negative phase Pacific Decadal Oscillation (PDO) i.e. the potential forward slowing due to local surface heating is reduced therefore the quicker arriving QPF in the GFS solution may not be that far off if development much closer to our forecast area verifies. The northern hemispheric pattern remains active with the current number of long wave troughs reflecting a winter-like circulation.
Stay tuned to latest forecast updates, as currently advertised the official forecast shows potential for showery, cool weather this weekend. Planning travel to the mountains? This pattern has potential for snow accumulations, it's a good idea to monitor the latest forecasts. Per 30 year climatology we are of course past peak cool season rainfall, however it can still rain in May in the Bay Area and north Central Coast. Recalling a Lead Forecaster here years ago mentioned it's always a good idea to carry chains in case needed (for Sierra Nevada travel) through Memorial Day.
July climatologically is our driest time of year since by then the jet stream has reliably weakened and returned northward and high pressure often sets up.
AVIATION
(12Z TAFS)
Issued at 416 AM PDT Tue Apr 30 2024
Generally VFR through the TAF period with patchy stratus in the higher elevations. Breezy westerly winds building through the day with gusts somewhat less intense than seen yesterday. LLWS concerns start to emerge early Wednesday morning, towards and after the end of the TAF period, primarily for the East Bay and eastern North Bay.
Vicinity of SFO... VFR through the TAF period. Breezy west-northwest winds building through the day. As of now, winds expected to gust up to 30 knots this afternoon and evening. Not expecting gusts above 35 knots at this time, but will monitor the evolution of the situation.
SFO Bridge Approach... Similar to SFO.
Monterey Bay Terminals... Not expecting any more ceilings to develop at MRY for the rest of the morning, and a low confidence (10-20% probability) that a patch of MVFR stratus forms over the northern Santa Lucias late this evening into Wednesday morning and then impacts the terminal. Otherwise, generally VFR through the region with breezy onshore flow developing this afternoon and evening.
MARINE
(Today through Sunday)
Issued at 854 AM PDT Tue Apr 30 2024
Strong winds persist through Friday, with gale force gusts of 40 to 45 knots are possible over the outer waters and portions of the immediate coast near Point Reyes and Point Sur through much of the week. The strong winds will result in hazardous seas and steep wind waves with significant wave heights reaching 10 to 14 feet in the outer waters. Conditions will gradually improve over the weekend and into next week as winds begin to ease. Chances of rain begin early Saturday as a trough descends over the region.
MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory from 3 PM this afternoon to 3 AM PDT Wednesday for SF Bay N of Bay Bridge.
Small Craft Advisory until 3 AM PDT Wednesday for Mry Bay.
Small Craft Advisory from 9 AM to 9 PM PDT Wednesday for Mry Bay.
Gale Warning until 3 AM PDT Wednesday for Pt Arena to Pt Reyes 0- 10 nm.
Gale Warning until 3 AM PDT Wednesday for Pt Reyes to Pigeon Pt 0-10 nm.
Small Craft Advisory until 3 AM PDT Wednesday for Pigeon Pt to Pt Pinos 0-10 nm.
Small Craft Advisory from 3 PM to 9 PM PDT Wednesday for Pigeon Pt to Pt Pinos 0-10 nm.
Gale Warning until 9 PM PDT Wednesday for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Gale Warning until 3 AM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM.
Area Forecast Discussion National Weather Service San Francisco CA 855 AM PDT Tue Apr 30 2024
New UPDATE, MARINE
SYNOPSIS
Issued at 133 AM PDT Tue Apr 30 2024
High pressure brings quiet weather and slowly warming temperatures this week. Breezy onshore winds will keep temperatures along the coast cooler however. Cooler and more unsettled conditions return this weekend into next week with light rain chances in the forecast.
UPDATE
Issued at 854 AM PDT Tue Apr 30 2024
Low clouds continue to dissipate across the Santa Clara Valley and the Santa Cruz Mountains this morning while they are hanging around the Monterey Bay region. However, conditions will continue to improve throughout the morning with mostly sunny conditions this afternoon. Breezy northwest winds will also prevail and strengthen this afternoon with gale force gusts out over the ocean. No changes anticipated to the ongoing forecast.
SHORT TERM
(Today and tonight)
Issued at 203 AM PDT Tue Apr 30 2024
Dry conditions prevailing with high pressure from the offshore waters to far northern California and the Pacific Northwest.
Gusty northwest winds continue over the coastal waters. Forecast highs today 60s near the coast and bays to the 70s inland.
LONG TERM
(Wednesday through Monday)
Issued at 203 AM PDT Tue Apr 30 2024
Dry conditions prevailing through mid-week. A slowly retrograding long wave trough along the West Coast varies in strength late week and early next week. There is a large difference between recent GFS (wet) and ECMWF (not nearly as wet as the GFS) in calculating the trajectory/progression of a low pressure system moving through the long wave trough, now well within 120 hours (5 days) forecast. QPF differences are showing up in the GEFS and EPS as well, though recent EPS have increased a little. As of current, it remains a low confidence forecast from a global model forecast perspective. Given the model forecast trajectory of the low pressure system is from near the Bering Sea/Aleutians southeastward across the Pacific (and surface high pressure over the Pacific retrogrades)
where below normal sea surface temperatures exist including a negative phase Pacific Decadal Oscillation (PDO) i.e. the potential forward slowing due to local surface heating is reduced therefore the quicker arriving QPF in the GFS solution may not be that far off if development much closer to our forecast area verifies. The northern hemispheric pattern remains active with the current number of long wave troughs reflecting a winter-like circulation.
Stay tuned to latest forecast updates, as currently advertised the official forecast shows potential for showery, cool weather this weekend. Planning travel to the mountains? This pattern has potential for snow accumulations, it's a good idea to monitor the latest forecasts. Per 30 year climatology we are of course past peak cool season rainfall, however it can still rain in May in the Bay Area and north Central Coast. Recalling a Lead Forecaster here years ago mentioned it's always a good idea to carry chains in case needed (for Sierra Nevada travel) through Memorial Day.
July climatologically is our driest time of year since by then the jet stream has reliably weakened and returned northward and high pressure often sets up.
AVIATION
(12Z TAFS)
Issued at 416 AM PDT Tue Apr 30 2024
Generally VFR through the TAF period with patchy stratus in the higher elevations. Breezy westerly winds building through the day with gusts somewhat less intense than seen yesterday. LLWS concerns start to emerge early Wednesday morning, towards and after the end of the TAF period, primarily for the East Bay and eastern North Bay.
Vicinity of SFO... VFR through the TAF period. Breezy west-northwest winds building through the day. As of now, winds expected to gust up to 30 knots this afternoon and evening. Not expecting gusts above 35 knots at this time, but will monitor the evolution of the situation.
SFO Bridge Approach... Similar to SFO.
Monterey Bay Terminals... Not expecting any more ceilings to develop at MRY for the rest of the morning, and a low confidence (10-20% probability) that a patch of MVFR stratus forms over the northern Santa Lucias late this evening into Wednesday morning and then impacts the terminal. Otherwise, generally VFR through the region with breezy onshore flow developing this afternoon and evening.
MARINE
(Today through Sunday)
Issued at 854 AM PDT Tue Apr 30 2024
Strong winds persist through Friday, with gale force gusts of 40 to 45 knots are possible over the outer waters and portions of the immediate coast near Point Reyes and Point Sur through much of the week. The strong winds will result in hazardous seas and steep wind waves with significant wave heights reaching 10 to 14 feet in the outer waters. Conditions will gradually improve over the weekend and into next week as winds begin to ease. Chances of rain begin early Saturday as a trough descends over the region.
MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory from 3 PM this afternoon to 3 AM PDT Wednesday for SF Bay N of Bay Bridge.
Small Craft Advisory until 3 AM PDT Wednesday for Mry Bay.
Small Craft Advisory from 9 AM to 9 PM PDT Wednesday for Mry Bay.
Gale Warning until 3 AM PDT Wednesday for Pt Arena to Pt Reyes 0- 10 nm.
Gale Warning until 3 AM PDT Wednesday for Pt Reyes to Pigeon Pt 0-10 nm.
Small Craft Advisory until 3 AM PDT Wednesday for Pigeon Pt to Pt Pinos 0-10 nm.
Small Craft Advisory from 3 PM to 9 PM PDT Wednesday for Pigeon Pt to Pt Pinos 0-10 nm.
Gale Warning until 9 PM PDT Wednesday for Pt Pinos to Pt Piedras Blancas 0-10 nm.
Gale Warning until 3 AM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM.
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Airport Reports
EDIT (hide/show) Help Click EDIT to display multiple airports. Follow links for more data.Tide / Current for Southeast Farallon Island, California
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Southeast Farallon Island
Click for Map
Tue -- 02:03 AM PDT Moonrise
Tue -- 03:24 AM PDT 4.87 feet High Tide
Tue -- 06:16 AM PDT Sunrise
Tue -- 11:01 AM PDT -0.48 feet Low Tide
Tue -- 11:32 AM PDT Moonset
Tue -- 06:42 PM PDT 3.99 feet High Tide
Tue -- 08:02 PM PDT Sunset
Tue -- 11:25 PM PDT 3.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 02:03 AM PDT Moonrise
Tue -- 03:24 AM PDT 4.87 feet High Tide
Tue -- 06:16 AM PDT Sunrise
Tue -- 11:01 AM PDT -0.48 feet Low Tide
Tue -- 11:32 AM PDT Moonset
Tue -- 06:42 PM PDT 3.99 feet High Tide
Tue -- 08:02 PM PDT Sunset
Tue -- 11:25 PM PDT 3.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Southeast Farallon Island, California, Tide feet
| 12 am |
| 3.9 |
| 1 am |
| 4.2 |
| 2 am |
| 4.6 |
| 3 am |
| 4.8 |
| 4 am |
| 4.8 |
| 5 am |
| 4.4 |
| 6 am |
| 3.6 |
| 7 am |
| 2.6 |
| 8 am |
| 1.4 |
| 9 am |
| 0.4 |
| 10 am |
| -0.3 |
| 11 am |
| -0.5 |
| 12 pm |
| -0.3 |
| 1 pm |
| 0.3 |
| 2 pm |
| 1.1 |
| 3 pm |
| 2 |
| 4 pm |
| 2.8 |
| 5 pm |
| 3.5 |
| 6 pm |
| 3.9 |
| 7 pm |
| 4 |
| 8 pm |
| 3.9 |
| 9 pm |
| 3.6 |
| 10 pm |
| 3.4 |
| 11 pm |
| 3.3 |
Point Reyes
Click for Map
Tue -- 02:05 AM PDT Moonrise
Tue -- 02:13 AM PDT 0.39 knots Max Flood
Tue -- 04:32 AM PDT -0.00 knots Slack
Tue -- 06:16 AM PDT Sunrise
Tue -- 08:32 AM PDT -1.14 knots Max Ebb
Tue -- 11:31 AM PDT Moonset
Tue -- 12:37 PM PDT 0.00 knots Slack
Tue -- 03:51 PM PDT 0.84 knots Max Flood
Tue -- 07:33 PM PDT -0.00 knots Slack
Tue -- 08:02 PM PDT Sunset
Tue -- 09:31 PM PDT -0.42 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 02:05 AM PDT Moonrise
Tue -- 02:13 AM PDT 0.39 knots Max Flood
Tue -- 04:32 AM PDT -0.00 knots Slack
Tue -- 06:16 AM PDT Sunrise
Tue -- 08:32 AM PDT -1.14 knots Max Ebb
Tue -- 11:31 AM PDT Moonset
Tue -- 12:37 PM PDT 0.00 knots Slack
Tue -- 03:51 PM PDT 0.84 knots Max Flood
Tue -- 07:33 PM PDT -0.00 knots Slack
Tue -- 08:02 PM PDT Sunset
Tue -- 09:31 PM PDT -0.42 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Point Reyes, California Current, knots
| 12 am |
| 0.1 |
| 1 am |
| 0.3 |
| 2 am |
| 0.4 |
| 3 am |
| 0.3 |
| 4 am |
| 0.1 |
| 5 am |
| -0.1 |
| 6 am |
| -0.5 |
| 7 am |
| -0.8 |
| 8 am |
| -1.1 |
| 9 am |
| -1.1 |
| 10 am |
| -0.9 |
| 11 am |
| -0.6 |
| 12 pm |
| -0.2 |
| 1 pm |
| 0.1 |
| 2 pm |
| 0.5 |
| 3 pm |
| 0.8 |
| 4 pm |
| 0.8 |
| 5 pm |
| 0.8 |
| 6 pm |
| 0.5 |
| 7 pm |
| 0.2 |
| 8 pm |
| -0.2 |
| 9 pm |
| -0.4 |
| 10 pm |
| -0.4 |
| 11 pm |
| -0.3 |
San Francisco Bay Area, CA,
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