Friday, September24, 2021
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Marine Weather and Tides
Seacliff, CA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 6:56AMSunset 7:02PM Friday September 24, 2021 6:17 PM PDT (01:17 UTC) Moonrise 8:11PMMoonset 9:28AM Illumination 87% Phase: Waning Gibbous; Moon at 18 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- 203 Pm Pdt Fri Sep 24 2021
Rest of today..W winds 5 to 10 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft at 12 seconds.
Tonight..W winds 5 to 10 kt. Wind waves 1 ft. W swell 2 to 4 ft at 11 seconds.
Sat..W winds 5 to 10 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 16 seconds.
Sat night..W winds 5 to 10 kt. Wind waves 1 ft. W swell 2 to 3 ft at 15 seconds and sw around 2 ft at 16 seconds.
Sun..W winds 15 to 20 kt with gusts up to 25 kt. Wind waves 1 to 2 ft. W swell 3 to 5 ft at 16 seconds and sw around 2 ft at 15 seconds.
Sun night..NW winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell 3 to 5 ft at 14 seconds and sw around 2 ft at 16 seconds.
Mon..W winds 20 to 25 kt with gusts up to 30 kt. Wind waves 1 ft. W swell 2 to 4 ft and sw around 2 ft.
Tue..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 2 to 4 ft and sw around 2 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 203 Pm Pdt Fri Sep 24 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light to moderate southwest to northwest winds over the coastal waters through the weekend. Locally breezy afternoon and evening winds expected near the golden gate. Northwest winds will begin to increase across the waters early next week. Mixed seas continue with a moderate northwest swell and a longer period southerly swell. A new longer period northwest swell will arrive on Sunday associated with a developing low over the gulf of alaska. Seas will quickly build into Tuesday.


7 Day Forecast for Marine Location Near Seacliff, CA
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location: 36.97, -121.91     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 250040 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 540 PM PDT Fri Sep 24 2021

SYNOPSIS. A cooling trend will occur through the weekend as onshore flow and marine influences spread inland. Even cooler, unsettled conditions are likely early next week with the potential for light rain to return to the North Bay.

DISCUSSION. as of 01:46 PM PDT Friday . We're seeing another warm day across the interior with temperatures in the upper 80s to lower 90s as high pressure aloft lingers over the region. Meanwhile, the marine layer has been deepening through the day and is now around 1,000 feet in depth over the North Bay and 1,500 feet based off of the Fort Ord Profiler. With this, temperatures are holding in the upper 50s to middle 60s for most coastal areas where low clouds also linger. As the aforementioned ridge aloft weakens through the weekend and more of a zonal flow develops, look for marine influences to spread further inland. This will result in a region-wide cooling trend with night/morning low clouds likely to become more widespread across the coastal adjacent valleys.

A larger pattern shift is forecast for early next week as a mid/upper level trough develops and pushes inland over the Pacific Northwest. This will drive a frontal boundary into northern California from Monday into Tuesday resulting in widespread precipitation over the northern portion of the state. Both deterministic and ensemble guidance suggest precipitation along the cold front will dissipate as it advances toward the San Francisco Bay Area. With the best mid/upper level support north of the region, the North Bay would be the most likely region to see some light rainfall with this system with chances greatly tapering off south of the Golden Gate. Slight warming is expected mid/late next week as the aforementioned trough shifts inland and ridging builds back over the region.

AVIATION. as of 5:40 PM PDT Friday . For the 00z TAFs. Wildfire smoke reducing slant range visibilities, also surface visibilities reduced locally to MVFR. SCT-BKN layer of smoke aloft 8,000 to 12,000 feet tonight and Saturday due to generally southerly winds advecting smoke from SoCal/Southern Sierra Nevada.

The marine layer depth is 1,200 feet. Satellite shows widespread coastal stratus and fog, onshore winds will usher stratus and fog /VLIFR-IFR/ inland tonight and Saturday morning. Light patchy coastal drizzle tonight and Saturday morning. MVFR-VFR late Saturday morning and afternoon. Stratus and fog moving back inland Saturday night and Sunday morning.

Vicinity of KSFO . VFR, west to northwest wind 15 to 20 knots until mid evening then decreasing to 5 to 10 knots. MVFR ceiling due to stratus developing 08z continuing to 1730z Saturday. A smoke layer from 10,000 to 12,000 feet through the period. West to northwest wind resuming to 15 to 20 knots Saturday afternoon and evening.

KSFO Bridge Approach . Slant range visibility reduced through the period. Otherwise similar to KSFO.

Monterey Bay . VFR except VLIFR-IFR in stratus, fog, light coastal drizzle tonight and Saturday morning. Slant range visibilities reduced due to wildfire smoke, mainly aloft, otherwise a smoke layer near 10,000 feet through the period. Conditions lifting to MVFR-VFR by late Saturday morning and afternoon.

MARINE. as of 4:57 PM PDT Friday . Light to moderate southwest to northwest winds over the coastal waters through the weekend. Locally breezy afternoon and evening winds expected near the Golden Gate. Northwest winds will begin to increase across the waters early next week. Mixed seas continue with a moderate northwest swell and a longer period southerly swell. A new longer period northwest swell will arrive on Sunday associated with a developing low over the Gulf of Alaska. Seas will quickly build into Tuesday.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . SF Bay until 9 PM



PUBLIC FORECAST: RGass AVIATION: Canepa MARINE: AS

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46269 7 mi47 min 58°F 62°F3 ft
MLSC1 - Moss Landing, South Harbor, CA 13 mi68 min 53°F
ELXC1 - Elkhorn Slough Reserve, CA 14 mi92 min WNW 6 60°F 1015 hPa58°F
46092 - MBM1 16 mi63 min WNW 7.8 58°F 60°F1012.9 hPa (-1.6)
46240 - Cabrillo Point, Monterey Bay, CA (158) 24 mi51 min 61°F3 ft
MEYC1 25 mi41 min S 5.1 G 8 58°F 63°F1013.5 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 29 mi37 min SSW 3.9 G 7.8 58°F 62°F1013.9 hPa
46114 - West Monterey Bay, CA 30 mi51 min 62°F5 ft
RTYC1 - 9414523 - Redwood City, CA 40 mi47 min N 9.9 G 13 66°F 1012.7 hPa
46239 - Point Sur, CA (157) 45 mi51 min 62°F5 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA7 mi24 minWSW 710.00 miA Few Clouds59°F56°F90%1013.6 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
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Last 24hrW3CalmCalmCalmCalmCalmCalmCalmSE3CalmCalmCalmW3CalmNW33S4SW5SW8SW6SW9SW9W5SW7
1 day agoSW4CalmSW3CalmS3CalmCalmSW3CalmCalmCalmCalmS3S3CalmCalmCalmS5SW8W6SW9SW7SW5SW7
2 days agoSW5CalmCalmCalmW3W3CalmCalmCalmCalmCalmW4CalmW3S3Calm3SW8SW6SW7W9W6SW6SW6

Tide / Current Tables for Santa Cruz, California
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Santa Cruz
Click for Map
Fri -- 01:14 AM PDT     4.00 feet High Tide
Fri -- 06:37 AM PDT     1.93 feet Low Tide
Fri -- 06:57 AM PDT     Sunrise
Fri -- 10:28 AM PDT     Moonset
Fri -- 12:55 PM PDT     4.81 feet High Tide
Fri -- 07:01 PM PDT     Sunset
Fri -- 07:25 PM PDT     0.81 feet Low Tide
Fri -- 09:10 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.743.93.52.92.3222.22.83.54.14.64.84.63.9321.20.80.91.31.82.5

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Fri -- 12:07 AM PDT     0.64 knots Max Flood
Fri -- 03:20 AM PDT     -0.00 knots Slack
Fri -- 05:52 AM PDT     -0.59 knots Max Ebb
Fri -- 06:57 AM PDT     Sunrise
Fri -- 09:21 AM PDT     0.00 knots Slack
Fri -- 10:27 AM PDT     Moonset
Fri -- 12:08 PM PDT     0.51 knots Max Flood
Fri -- 03:03 PM PDT     -0.00 knots Slack
Fri -- 06:07 PM PDT     -0.77 knots Max Ebb
Fri -- 07:01 PM PDT     Sunset
Fri -- 09:11 PM PDT     Moonrise
Fri -- 09:55 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.60.40.1-0.2-0.5-0.6-0.5-0.3-0.10.20.40.50.50.30-0.3-0.6-0.8-0.7-0.5-0.300.3

Weather Map
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GEOS Local Image of CentralWestCoast    EDIT
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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