Saturday, February27, 2021
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Marine Weather and Tides
Bonny Doon, CA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:39AMSunset 6:01PM Saturday February 27, 2021 1:37 AM PST (09:37 UTC) Moonrise 6:41PMMoonset 7:17AM Illumination 100% Phase: Full Moon; Moon at 15 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
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PZZ560 Coastal Waters From Pigeon Point To Point Pinos California Out To 10 Nm- 838 Pm Pst Fri Feb 26 2021
.small craft advisory in effect through Saturday evening...
Tonight..NW winds 20 to 30 kt with gusts up to 40 kt. Wind waves 12 to 14 ft, decreasing to 10 to 12 ft after midnight. NW swell 4 to 6 ft at 16 seconds.
Sat..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 11 to 13 ft. NW swell 4 to 6 ft at 16 seconds.
Sat night..NW winds 15 to 25 kt with gusts up to 35 kt. Wind waves 8 to 9 ft. NW swell 4 to 5 ft at 15 seconds.
Sun..N winds 5 to 15 kt. Wind waves 4 to 5 ft. NW swell 4 to 6 ft at 14 seconds.
Sun night..NE winds 5 to 10 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft at 13 seconds.
Mon..S winds 5 to 15 kt. Wind waves 4 to 5 ft. NW swell 3 to 5 ft at 12 seconds.
Mon night..NW winds 5 to 10 kt. Wind waves 5 to 6 ft. NW swell 2 to 4 ft at 12 seconds.
Tue..N winds 5 to 15 kt. Wind waves 4 to 5 ft. NW swell 4 to 6 ft.
Wed..NW winds 5 to 15 kt. Wind waves around 2 ft. NW swell 5 to 7 ft.
PZZ500 838 Pm Pst Fri Feb 26 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gale force northwest winds continue over the waters this evening and will through early Saturday morning. Northern coastal waters can expect winds to diminish through Saturday afternoon, while the big sur coast south of point sur and all outer waters will remain at gale force not subsiding until late Saturday night. These winds will generate steep wind waves through Saturday night and bring hazardous conditions for smaller vessels. A moderate period northwest swell persists through the weekend.


7 Day Forecast for Marine Location Near Bonny Doon, CA
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location: 37, -122.12     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 270533 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 933 PM PST Fri Feb 26 2021

SYNOPSIS. Cool nights, mild afternoons, and dry weather conditions will persist through the upcoming weekend. Locally gusty offshore winds are expected from late tonight through Sunday morning, mainly at higher elevations. Much of the San Francisco Bay Area and Central Coast will likely remain dry through at least the middle of next week before rain chances potentially return late in the week.

DISCUSSION. As of 8:55 PM PST Friday . Gusty northwest winds developed this afternoon, mainly near the ocean, as another in a series of shortwave troughs dropped southeast out of the Pac NW and towards the Great Basin. Northwest wind gusts of between 30 and 40 mph were observed near the ocean this afternoon and early evening. Winds have since begun to subside and will continue to decrease at lower elevations through the night. As the upper trough continues to dig southward into the Great Basin from tonight through Saturday Night, offshore surface pressure gradients will gradually ramp up, resulting in winds veering to the north in the hills tonight and increasing in intensity starting late tonight. Winds are expected to reach their peak on Saturday night and early Sunday. Strongest winds will mostly be confined to the higher peaks tonight and Saturday morning, but will become somewhat more widespread above 1000 feet from tomorrow afternoon through tomorrow night. Breezy conditions ma also develop locally down to near sea level once the nocturnal inversion dissipates tomorrow, especially in areas near the Delta. However, winds are expected to remain below advisory levels, except at isolated higher peaks where gusts of 50 to 60 mph are likely, mainly on Saturday night and early Sunday. Winds are forecast to decrease in all areas by Sunday afternoon.

Dry weather is expected to continue through the weekend. Daytime temperatures will trend a bit warmer by Sunday, but generally remain near seasonal averages, except slightly warmer than average in areas that experience downslope warming during north wind events (e.g., Santa Rosa). Clear skies and dry air will mean chilly nights will continue, especially in the wind sheltered interior valleys.

From Previous Discussion . With the dry, offshore flow over the region daytime temperatures will remain above seasonal averages through the upcoming weekend. Look for upper 50s near the coast to low/mid 60s inland. Overnight lows will drop into the 30s in the interior valleys (especially at times the winds are calm) to 40s elsewhere.

Early next week the forecast models and ensembles indicate a mid/upper level trough will drop southward just off of the Pacific Northwest coast before becoming a cut-off low. The trajectory of this upper level low looks to remain well off of the coast as it drops southward and eventually inland over central or southern California Tuesday/Wednesday. At this time, the National Blend of Models maintains dry weather conditions through at least the first half of next week. If any precipitation were to occur with this system, rainfall would be light in the form of isolated showers.

Confidence in the return of unsettled/wetter weather continues to increase by late next week and into the following weekend as the ensembles indicate a more active pattern developing over the region. From previous discussion: "Longer range forecast - ECMWF Weeklies and GEFS extended are starting to show some promise of more rain heading into the second week of March . The latest CPC 8-14 day outlook is also showing increased likelihood precip." Stay tuned .

AVIATION. as of 9:33 PM PST Friday . For the 06Z TAFs. Winds remain out of the northwest, and are starting to diminish though breezier winds remain closer to the coast. Skies are clear, with the exception of patches of low clouds around the East Bay Hills in the Santa Clara Valley and the Santa Lucia's near the Monterey Bay. TEMPO groups for isolated MVFR conditions were added to select TAFs but are not forecast to prevail through the night. Otherwise VFR through the TAF period. Chances of LLWS remain in the TAFs for the North Bay and KLVK for early tomorrow morning. VFR Saturday with gusty northwest winds again with another chance of LLWS after 06Z Saturday night as winds aloft are forecast to remain strong.

Vicinity of KSFO . VFR. Winds still up to and around 20 kts at this hour, but will diminish after 08Z, but remain breezy through the night. No new data to remove the chance for LLWS after 12Z, but also nothing to add confidence and put it in the TAF so like the previous TAF package, it remains out. As clear skies remain, strong wind gusts are expected once again Saturday afternoon. Chance of LLWS Saturday night as winds subside yet again.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Strong winds and wind gusts remain for coastal terminals, but continue to subside. A patch of clouds has developed on both the Santa Lucia and Gabilan ranges, so TEMPO groups were added for MVFR conditions for the next few hours. Plus, the chance for patchy fog near KSNS Saturday morning. Otherwise VFR through the period. Winds increase once again Saturday afternoon, subsiding Saturday night.

MARINE. as of 08:38 PM PST Friday . Gale force northwest winds continue over the waters this evening and will through early Saturday morning. Northern coastal waters can expect winds to diminish through Saturday afternoon, while the Big Sur coast south of Point Sur and all outer waters will remain at gale force not subsiding until late Saturday night. These winds will generate steep wind waves through Saturday night and bring hazardous conditions for smaller vessels. A moderate period northwest swell persists through the weekend.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pigeon Pt to Pt Pinos 0-10 nm GLW . Pt Pinos to Pt Piedras Blancas 0-10 nm GLW . Pt Arena to Pigeon Pt 10-60 nm GLW . Pigeon Pt to Pt Piedras Blancas 10-60 nm GLW . Pt Arena to Pt Reyes 0-10 nm GLW . Pt Reyes to Pigeon Pt 0-10 nm SCA . Mry Bay until 3 AM



PUBLIC FORECAST: Dykema/RGass AVIATION: DK MARINE: DK

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46269 6 mi67 min 48°F 53°F4 ft
46092 - MBM1 18 mi100 min NNW 21 49°F 51°F1018.7 hPa (+0.0)
46042 - MONTEREY - 27NM West of Monterey Bay, CA 21 mi37 min NNW 29 G 37 50°F 50°F1020.2 hPa (-0.3)42°F
MLSC1 - Moss Landing, South Harbor, CA 22 mi37 min 50°F
46114 - West Monterey Bay, CA 24 mi41 min 51°F14 ft
ELXC1 - Elkhorn Slough Reserve, CA 24 mi112 min S 6 45°F 1018 hPa42°F
46240 - Cabrillo Point, Monterey Bay, CA (158) 28 mi41 min 52°F7 ft
MEYC1 30 mi61 min NW 9.9 G 16 49°F 1020.1 hPa
RTYC1 - 9414523 - Redwood City, CA 35 mi49 min WNW 8 G 8.9 48°F 59°F1021 hPa
46239 - Point Sur, CA (157) 46 mi41 min 51°F13 ft
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 47 mi37 min NNW 27 G 37 48°F 1021.3 hPa (+0.5)42°F

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA18 mi44 minNNE 310.00 miFair43°F40°F89%1020.1 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
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Last 24hrNW3NW4CalmCalmCalmCalmCalmCalmSE3S43SW8S4SE76SE5S5SE7CalmCalmN3NE3N4NE3
1 day agoN4CalmS33N4CalmNW3CalmSE4Calm3W6W8W7W4SW3S3CalmW3CalmN4NW3N3N3
2 days agoNW3N4N4NW3NW4CalmCalmCalmCalm4SW5SW6S7NE9
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Tide / Current Tables for Santa Cruz, Monterey Bay, California
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Santa Cruz
Click for Map
Sat -- 12:19 AM PST     Full Moon
Sat -- 04:05 AM PST     1.94 feet Low Tide
Sat -- 06:41 AM PST     Sunrise
Sat -- 07:16 AM PST     Moonset
Sat -- 09:58 AM PST     5.75 feet High Tide
Sat -- 04:40 PM PST     -0.52 feet Low Tide
Sat -- 06:00 PM PST     Sunset
Sat -- 06:41 PM PST     Moonrise
Sat -- 11:16 PM PST     4.88 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.33.62.82.21.92.22.83.84.75.55.75.44.53.11.60.4-0.4-0.5012.23.44.44.9

Tide / Current Tables for Santa Cruz, California
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Santa Cruz
Click for Map
Sat -- 12:19 AM PST     Full Moon
Sat -- 03:51 AM PST     1.86 feet Low Tide
Sat -- 06:41 AM PST     Sunrise
Sat -- 07:16 AM PST     Moonset
Sat -- 09:56 AM PST     5.56 feet High Tide
Sat -- 04:28 PM PST     -0.72 feet Low Tide
Sat -- 06:00 PM PST     Sunset
Sat -- 06:41 PM PST     Moonrise
Sat -- 11:22 PM PST     4.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.13.42.621.92.22.83.74.65.35.65.24.22.71.2-0-0.7-0.6-0.10.923.24.14.6

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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