Thursday, March4, 2021
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Marine Weather and Tides
Gonzales, 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 6:29AMSunset 6:04PM Thursday March 4, 2021 2:31 PM PST (22:31 UTC) Moonrise 12:00AMMoonset 10:00AM Illumination 63% Phase: Waning Gibbous; Moon at 21 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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PZZ535 Monterey Bay- 416 Am Pst Thu Mar 4 2021
Today..S winds up to 10 kt, becoming W this afternoon. Wind waves 1 ft, increasing to 3 to 4 ft this afternoon. W swell 2 to 4 ft at 19 seconds.
Tonight..SW winds 5 to 15 kt. Wind waves 3 to 4 ft. W swell 2 to 4 ft at 19 seconds.
Fri..SW winds up to 10 kt. Wind waves 1 to 2 ft. W swell 5 to 7 ft at 17 seconds.
Fri night..SW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 2 to 3 ft. W swell 5 to 7 ft at 16 seconds. Rain.
Sat..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 2 to 3 ft. W swell 5 to 7 ft at 16 seconds.
Sat night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 5 to 7 ft at 15 seconds.
Sun..NW winds up to 10 kt. Wind waves 1 ft. W swell 4 to 6 ft.
Mon..S winds up to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft. A chance of rain. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 416 Am Pst Thu Mar 4 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty south to southeast winds developing over much of the coastal waters today into Friday. A long period northwest swell arrives today through Friday. A low pressure system from the northwest will bring rain later Friday into Saturday morning. Another low pressure system from the northwest will bring more rain early to mid next week.


7 Day Forecast for Marine Location Near Gonzales, CA
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location: 36.54, -121.46     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 042154 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 154 PM PST Thu Mar 4 2021

SYNOPSIS. Seasonal temperatures and light southwest winds through Friday. Our next chance for rain moves over the area Friday night into early Saturday morning. Rain totals do not look impressive, as the system will move over the area too fast for much to accumulate. Temperatures will remain cool this weekend and onshore winds breezy Saturday, becoming light Sunday. More chances for rain remaining in the forecast for early to mid next week, keeping temperatures cooler than normal.

DISCUSSION. as of 2:00 PM PST Thursday . Satellite imagery shows clear skies aside from a few remnant stratus clouds along the coast of Point Reyes and Carmel early this afternoon. Fair weather conditions are occuring today with a marginally cooler and moister air mass in place versus 24 hours ago as a storm system descending from the Gulf of Alaska gradually approaches from the northwest. Tomorrow's weather is forecast to be similar to today's up through the early afternoon prior to the arrival of the next storm system. The main excitement in the office so far today has been coordination on the recent M8 earthquake in the Pacific Ocean-- at this time there are no active tsunami hazards in effect for our region, however, the NWS and state officials are watching this situation closely for any changes on this front and will notify if a coastal hazard becomes possible.

Models are in good agreement that the approaching system will bring bring a quick shot of precipitation to the region predominately by around sunset tomorrow (Friday) into early Saturday. Rain will taper off by around sunrise though some lingering light showers are possible through late Saturday morning. Precipitation totals will be predominately light with brief localized moderate rain rates (briefly up to 0.25/hr) possible with the frontal passage. The next storm system precipitation is expected to be beneficial with minimal impacts beyond slick roadways expected as amounts and rain rates are well below criteria for burn scar/slide/flash flooding concerns. Precipitation amounts will range from 0.25 to 0.50" for the immediate Bay Area and North Bay, up to 0.75" in the for the coastal ranges/hills, and less than 0.25" south of the Santa Cruz mountains. Southwest winds of 10-20mph with gusts to 25-30mph at the coast and higher terrain will accompany the arrival of this system weaker winds prevail elsewhere. Winds will become northwest in the wake of the front and become locally breezy along the coast by Saturday afternoon and relatively light elsewhere.

This weekend temperatures will have a hard time recovering as we see zonal flow aloft. Near the coast will see upper 50's and the inland areas lower 60's for high temperatures Saturday and Sunday. Northwest winds will remain breezy, with more gusty winds near the coast. Winds will look to calm down slightly Sunday.

By next week, ensemble members are in high agreement that wetter and cooler weather will impact the region from Monday through Wednesday as broad, slow moving 533dm 500mb low pressure system descends from the Gulf of Alaska then stalls in the vicinity. Latest data suggests this will bring an extended period of generally light to occasionally moderate precipitation throughout this timeframe, beginning roughly midday Monday and persist into Wednesday night, with the heaviest rain through the day on Tuesday for the majority in the urban areas of the Bay Area. Preliminary precipitation estimates of 2-3" in the coastal ranges and hills, 1.25" in the North Bay Valleys, 0.75-1.00" along the shorelines, and 0.50-.066" in the rain shadowed valleys. Breezy southerly winds will accompany this system. These precipitation amounts over the course of 2.5-3.0 days should not trigger any criteria for slides though localized ponding of water in poorly drained or low lying spots is definitely a possibility, especially later into the event. Cold air aloft will linger over the region by midweek and suppress daytime temperatures by 10-20 degrees into the upper mid to 50s for most areas, while pushing snow levels down as low as 2000-2500 feet and we could see some accumulations at the higher elevations given current data.

By late week next week in the wake of these wetter and cooler system, model uncertainty increases significantly, but there is some indication of a potential northerly/offshore wind event-- though given the anticipated rains, impacts will likely be low.

AVIATION. as of 09:30 AM PST Thursday . For the 18Z TAFs. Lingering cigs at KSTS will continue to thin out late this morning. VFR expected this afternoon and this evening at all terminals. Tonight on the other hand is tricky and lower confidence forecast. Hi-res model guidance suggests a return of some patchy low cigs in the MVFR cat. For now brought some cigs back for the North Bay and Monterey Bay. SF Bay could see some clouds, but will keep them SCT. Tomorrow afternoon into the evening more widespread cloud cover will return as a cold front moves in from the west. Vicinity of KSFO . VFR. Wind light and variable until 22z today then southwest 10 to 20 knots, wind decreasing to south-southwest 10 knots tonight and Friday morning. Scattered clouds possible tomorrow morning with increase mid-high level clouds in the afternoon/evening. SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR through early tonight. MVFR cigs late tonight and early tomorrow. Confidence on returning cigs is medium.

BEACHES. as of 4:19 AM PST Thursday . A long period northwest swell arrives today through Friday bringing an increased risk of sneaker waves, rip currents, long shore currents, and there could be hard breaking surf on steep beaches. There is the potential that these conditions will transition into high surf on Friday. The hazard is for west and northwest facing beaches where caution is advised. Never turn your back to the ocean.

MARINE. as of 09:27 AM PST Thursday . A cold front will approach the region today resulting in increasing southerly winds over the coastal waters. Winds will be strongest north of Point Reyes. A long period northwest swell arrives today continue into Friday. The passing cold front will bring rain later Friday into Saturday morning. Another low pressure system from the northwest will bring more rain early to mid next week.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm



PUBLIC FORECAST: DRP AVIATION: MM MARINE: MM

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MEYC1 23 mi56 min WSW 7 G 8.9 55°F 1024.5 hPa
46240 - Cabrillo Point, Monterey Bay, CA (158) 24 mi36 min 52°F3 ft
ELXC1 - Elkhorn Slough Reserve, CA 24 mi107 min N 8 57°F 1025 hPa47°F
MLSC1 - Moss Landing, South Harbor, CA 25 mi32 min 54°F
46092 - MBM1 33 mi95 min N 3.9 52°F 53°F1024.5 hPa (+0.0)
46239 - Point Sur, CA (157) 37 mi36 min 52°F6 ft
46269 41 mi32 min 53°F 55°F4 ft
46114 - West Monterey Bay, CA 48 mi36 min 53°F6 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salinas, Salinas Municipal Airport, CA11 mi39 minWNW 1010.00 miFair61°F45°F56%1024.7 hPa
Monterey Regional Airport, CA20 mi38 minWSW 510.00 miA Few Clouds61°F47°F60%1025.5 hPa

Link to 5 minute data for KSNS

Wind History from SNS (wind in knots)
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Last 24hrNW15NW14NW15NW13N8--N3CalmS4SE3CalmW3SE7------S7S11SE11SE9SE8NW4NW12W10
1 day agoNW9NW8NW7NW7NW6NW4NW7W4NE3CalmCalmCalmSE3S3SE4CalmSE3SE4S4--------NW13
2 days agoNW11NW10NW7NW5W4W3CalmS3CalmS6SE5CalmCalmSE8CalmSE3SE3SE7SE7SE13SE10S6NW13NW11

Tide / Current Tables for Monterey, Monterey Harbor, California (3)
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Monterey
Click for Map
Thu -- 01:50 AM PST     5.56 feet High Tide
Thu -- 06:33 AM PST     Sunrise
Thu -- 08:44 AM PST     0.34 feet Low Tide
Thu -- 10:01 AM PST     Moonset
Thu -- 03:10 PM PST     3.71 feet High Tide
Thu -- 06:05 PM PST     Sunset
Thu -- 08:24 PM PST     2.27 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.75.45.55.24.43.32.11.10.50.40.71.42.12.93.53.73.63.32.92.52.32.32.73.4

Tide / Current Tables for Monterey, Monterey Harbor, California (2)
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Monterey
Click for Map
Thu -- 01:48 AM PST     5.63 feet High Tide
Thu -- 06:33 AM PST     Sunrise
Thu -- 08:58 AM PST     0.49 feet Low Tide
Thu -- 10:01 AM PST     Moonset
Thu -- 03:10 PM PST     3.34 feet High Tide
Thu -- 06:05 PM PST     Sunset
Thu -- 07:54 PM PST     2.05 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.95.55.65.34.53.42.31.30.70.50.71.322.63.13.33.22.92.52.22.12.22.83.5

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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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