Thursday, July29, 2021
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Marine Weather and Tides
Cambrian Park, 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 6:09AMSunset 8:19PM Thursday July 29, 2021 2:18 PM PDT (21:18 UTC) Moonrise 10:50PMMoonset 10:55AM Illumination 70% Phase: Waning Gibbous; Moon at 20 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- 853 Am Pdt Thu Jul 29 2021
Today..W winds around 5 kt, increasing to 5 to 10 kt this afternoon. Wind waves 2 to 3 ft.
Tonight..W winds 5 to 10 kt. Wind waves 2 to 3 ft.
Fri..SW winds 5 to 10 kt. Wind waves around 2 ft.
Fri night..SW winds around 5 kt. Wind waves 2 to 3 ft.
Sat..SW winds around 5 kt. Wind waves around 2 ft.
Sat night..W winds around 5 kt. Wind waves 2 to 3 ft.
Sun..W winds 5 to 10 kt. Wind waves 2 to 3 ft. SWell sw around 2 ft.
Mon..W winds 5 to 10 kt. Wind waves 3 to 4 ft. SWell sw around 2 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 853 Am Pdt Thu Jul 29 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light to locally moderate gusty northwest winds across the northern outer waters. Breezy to gusty west winds each afternoon and evening across the san francisco bay north of the bay bridge otherwise light northwest winds through Monday. A moderate period southerly swell will persist in the waters.


7 Day Forecast for Marine Location Near Cambrian Park, CA
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location: 37.22, -121.88     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 291736 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1036 AM PDT Thu Jul 29 2021

SYNOPSIS. Seasonably warm weather pattern continues inland through Friday with high pressure over the region. A shallow marine layer will persist along the coast keeping temperatures seasonably mild near the coast and bays. A modest cooling trend starts this weekend for inland areas as onshore winds strengthen and the marine layer deepens along the coast.

DISCUSSION. as of 9:28 AM PDT Thursday . Have put the kmux radar into precip mode to better scan some of the high based returns well offshore. Vandenberg and Oakland soundings suggest moisture is above 500 mb so not expecting any convection and it looks to stay offshore as well. Marine layer around 1500 feet deep along the coast with low clouds retreating quickly this morning revealing some of the mid/high level clouds and instability passing south to north. Of note on morning visible satellite is the activity over the southern Sierra that is already bubbling and will likely start earlier than normal across the central/northern Sierra this afternoon. For the Bay Area expect another seasonably hot day inland with widespread 90s and even some lower 100s. Fuels of course remain near or at record dry levels inland/hill locations and yesterdays Pinnacles fire showed how rapidly fires can grow even during routine weather days given the current drought stressed fuels. Fun side note is many of the record highs for today date back to 1977 and preceded that years lightning event that stared the Marble Cone fire locally and many other fires across NorCal.

No big changes of note for Friday. Do expect some inland cooling by this weekend as the marine layer deepens and onshore winds strengthen in response to approaching West Coast trough that will nudge the main ridge farther eastward while fairly significant monsoonal moisture will sneak northward into NV/ID/OR. Long range trends remain seasonably warm and dry into early August for the Bay Area.

AVIATION. as of 10:45 AM PDT Thursday . For the 18z TAFs. Typical midsummer pattern in effect with marine stratus along the coast and monsoonal air aloft. Generally, expect to see VFR today, with FEW- SCT at 15000-20000 feet through the afternoon. Winds generally light and terrain driven in the morning, becoming locally breezy onshore through the coastal gaps in the afternoon. For tonight, a compressed marine layer will bring similar patchy VLIFR- IFR level marine stratus cigs to coastally influenced terminals and lowering mid to high level FEW-SCT 10000-15000 ft cigs elsewhere. Similar pattern tomorrow.

Vicinity of KSFO . VFR through the TAF period. Winds remain mild until afternoon with peak winds from the Northwest around 15-20 kts. These winds look to last through that evening but back off into Thursday night. For tonight, patchy stratus deck returns with borderline MVFR/IFR SCT/BKN deck into mid morning Friday.

KSFO Bridge Approach . Similar to KSFO.

Monterey Bay . Winds remain weak and variable through the morning, before becoming onshore and slightly breezy in the afternoon. Winds weaken and stratus returns in the late evening and early night leading to IFR around the Monterey Bay overnight.

MARINE. as of 10:32 AM PDT Thursday . Generally light to locally moderate gusty northwest winds across the northern outer waters. Breezy to gusty west winds each afternoon and evening across the San Francisco Bay north of the Bay Bridge otherwise light northwest winds through Monday. A moderate period southerly swell will persist in the waters.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . SF Bay from 3 PM



PUBLIC FORECAST: Palmer AVIATION: DRP MARINE: DRP

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46269 21 mi49 min 58°F 60°F2 ft
RTYC1 - 9414523 - Redwood City, CA 27 mi49 min NNW 8 G 11 69°F 1014.3 hPa
ELXC1 - Elkhorn Slough Reserve, CA 29 mi94 min W 7 64°F 1016 hPa58°F
MLSC1 - Moss Landing, South Harbor, CA 29 mi32 min W 7 58°F 56°F
46092 - MBM1 33 mi56 min SW 7.8 56°F 59°F1014.5 hPa (-1.2)
46042 - MONTEREY - 27NM West of Monterey Bay, CA 41 mi29 min W 5.8 G 9.7 58°F 60°F3 ft1015.3 hPa
46240 - Cabrillo Point, Monterey Bay, CA (158) 41 mi53 min 58°F1 ft
MEYC1 42 mi43 min W 7 G 9.9 68°F 1014.3 hPa
46114 - West Monterey Bay, CA 44 mi53 min 60°F3 ft
AAMC1 - 9414750 - Alameda, CA 44 mi49 min W 6 G 8 65°F 69°F1014.3 hPa
LNDC1 45 mi49 min N 5.1 G 7 67°F 1013.9 hPa
OBXC1 47 mi49 min 63°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 47 mi49 min NW 8.9 G 12 61°F 1014.1 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 47 mi49 min WNW 5.1 G 6
PXOC1 - 9414311 - San Francisco (Pier 1), CA 48 mi49 min WSW 6 G 13 64°F 1013.2 hPa
PXSC1 49 mi49 min 65°F 65°F

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose / Reid / Hillv, CA9 mi24 minNNW 810.00 miMostly Cloudy84°F61°F45%1012.9 hPa
San Jose, San Jose International Airport, CA11 mi26 minNW 710.00 miMostly Cloudy79°F60°F52%1012.6 hPa
Mountain View, Moffett Field, CA17 mi29 minNNW 910.00 miFair77°F61°F57%1013.2 hPa
Watsonville, Watsonville Municipal Airport, CA20 mi26 minW 710.00 miFair69°F57°F66%1014.5 hPa
Palo Alto Airport, CA22 mi32 minN 1010.00 miClear73°F61°F65%1013.2 hPa

Link to 5 minute data for KRHV

Wind History from RHV (wind in knots)
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Last 24hrN9NW8W9W11W9W6W5NW4------------------CalmCalmCalmNW4NW3NW8NW8
1 day agoNW8NW9NW9NW8NW8NW8NW6W6----------------NW4CalmCalmCalmCalmCalm--NW5
2 days agoCalmNW11NW7NW5NW6W84W4----------------CalmCalmCalmCalmNW5W5NW6W8

Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
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Gold Street Bridge
Click for Map
Thu -- 12:26 AM PDT     2.36 feet Low Tide
Thu -- 04:53 AM PDT     7.97 feet High Tide
Thu -- 06:10 AM PDT     Sunrise
Thu -- 11:55 AM PDT     Moonset
Thu -- 12:24 PM PDT     0.88 feet Low Tide
Thu -- 06:05 PM PDT     8.98 feet High Tide
Thu -- 08:18 PM PDT     Sunset
Thu -- 11:50 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.42.63.95.77.487.66.75.43.92.51.50.91.12.44.46.58.298.77.86.55.13.7

Tide / Current Tables for Dumbarton Point 2.3 mi NE, South San Francisco Bay, California Current
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Dumbarton Point 2.3 mi NE
Click for Map
Thu -- 12:00 AM PDT     0.00 knots Slack
Thu -- 02:23 AM PDT     0.92 knots Max Flood
Thu -- 05:19 AM PDT     -0.00 knots Slack
Thu -- 06:10 AM PDT     Sunrise
Thu -- 09:39 AM PDT     -0.99 knots Max Ebb
Thu -- 11:56 AM PDT     Moonset
Thu -- 12:12 PM PDT     0.00 knots Slack
Thu -- 02:54 PM PDT     1.14 knots Max Flood
Thu -- 06:10 PM PDT     -0.00 knots Slack
Thu -- 08:18 PM PDT     Sunset
Thu -- 10:17 PM PDT     -0.86 knots Max Ebb
Thu -- 11:50 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-00.60.90.90.60.2-0.2-0.5-0.8-1-1-0.6-0.10.511.110.70.1-0.3-0.6-0.8-0.9-0.8

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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