Sunday, December8, 2019
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Marine Weather and Tides
Monte Sereno, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:08AMSunset 4:51PM Sunday December 8, 2019 10:14 AM PST (18:14 UTC) Moonrise 2:57PMMoonset 3:30AM Illumination 90% Phase: Waxing Gibbous; Moon at 12 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 Am Pst Sun Dec 8 2019
Today..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 6 to 8 ft at 11 seconds. SWell S around 2 ft. A chance of rain this morning.
Tonight..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 5 to 6 ft at 11 seconds and S around 2 ft at 16 seconds.
Mon..NW winds up to 10 kt. Wind waves 1 ft. W swell 3 to 5 ft at 15 seconds.
Mon night..NW winds 5 to 10 kt. Wind waves 1 ft. NW swell 3 to 5 ft at 15 seconds and S around 2 ft at 16 seconds.
Tue..NW winds up to 10 kt. Wind waves 1 ft. W swell 3 to 5 ft at 15 seconds and S around 2 ft at 16 seconds.
Tue night..NW winds up to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft at 15 seconds and S around 2 ft at 15 seconds.
Wed..N winds around 5 kt. Wind waves 1 ft. W swell 6 to 8 ft and S around 2 ft.
Thu..N winds up to 10 kt. Wind waves 1 ft. W swell 9 to 11 ft.
PZZ500 838 Am Pst Sun Dec 8 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Scattered showers are seen this morning and expected to continue into the afternoon. Winds shift to the northwest by this afternoon and continue to weaken. Building high pressure will keep winds generally light to moderate through much of the week . A weak system will move through Tuesday night bringing back southerly winds to the waters along with the return of rain showers. Wind waves continue to ease as the winds diminish. A moderate west swell will continue through today before a northwest swell arrives on Monday and gradually builds throughout the coming week.


7 Day Forecast for Marine Location Near Monte Sereno, CA
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location: 37.21, -122.06     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 081759 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 959 AM PST Sun Dec 8 2019

SYNOPSIS. Scattered showers will continue into this morning, ending from north to south on during the afternoon. Dry conditions are then forecast for most of next week, except for light rain chances late Tuesday and Tuesday night and then again late in the week. Temperatures will be near seasonal averages through next week.

DISCUSSION. as of 8:42 AM PST Sunday . Scattered rain showers continue to impact parts of the San Francisco Bay Area and central California coast this Sunday morning. As of 8:30 AM PST, KMUX radar shows a line of showers approaching the Monterey Bay shoreline from the west as well as another line along the Big Sur Coast. In the Bay Area, several showers are bringing light to briefly moderate rainfall to parts of San Mateo, Santa Clara, and Alameda Counties. The latest HRRR and 3-km NAM suggest shower activity will begin to decrease from north to south during the afternoon hours as the upper level low and associated trough axis drops southeastward into southern California. Looks like Monday will be a good day to leave the umbrella at home as an upper level ridge begins to develop over the West Coast. No major changes have been made this morning to the short-term grids. For additional forecast details, please refer to the previous discussion section.

PREV DISCUSSION. As of 2:41 AM PST Sunday . KMUX radar scans continue to show scattered showers moving across the area, although they are decreasing in intensity and coverage. Hourly precip totals are mainly in the Santa Clara County and East Bay, where up to 0.12" have fallen. This shower activity will continue to diminish today, although the coastal mountains in Monterey and Santa Cruz county could see over a half inch of rain today in passing showers.

Dry weather is expected beginning on Monday as an upper level ridge builds back in over California. A weak trough is forecast to move across Northern California late Tuesday into Wednesday. Light rain could reach as far south as the Monterey Bay by Wednesday morning, but rain chances will be greatest the farther north you go. Another system moving across by next weekend could bring another shot of rain, but again this system looks to impact mainly far northern California. Otherwise, seasonably mild temperatures are expected.

AVIATION. as of 09:58 AM PST Sunday . For 18z TAFs. Scattered showers remain around the Bay Area, reducing vis/cigs from MVFR to IFR while the heavier showers pass. Clouds linger behind the showers keeping cigs between 2,000 and 5,000 feet. Rain chances are forecast to be over by the 00z TAFs. Clouds can expect to become more SCT in the afternoon, but momentarily as re-developing BKN cigs are expected this evening. Winds are currently light and will become breezy and onshore this afternoon. Cigs will continue to lower overnight making IFR conditions possible near Bay Area terminals, with a chance of fog at KSTS Monday morning.

Vicinity of KSFO . MVFR conditions with passing showers. Clouds linger and become SCT momentarily this afternoon, but lowering cigs around the terminal become BKN are forecast to return once again as night falls given the amount of moisture near the area. Winds have already switched over the the northwest, and will become locally breezy between 10-15 kts this afternoon. Winds will lighten overnight as cigs will continue to lower in the early Monday morning hours with IFR conditions possible.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR-MVFR conditions as showers still remain around the Central Coast. Cigs/vis may temporarily lower during heavier showers but rain is expected to taper off this afternoon/evening. Lowering cigs again this evening and overnight. Winds will shift to the W/NW by this afternoon, and become locally breezy.

MARINE. as of 09:41 AM PST Sunday . Scattered showers are seen this morning and expected to continue into the afternoon. Winds shift to the northwest by this afternoon and continue to weaken. Building high pressure will keep winds generally light to moderate through much of the week . A weak system will move through Tuesday night bringing back southerly winds to the waters along with the return of rain showers. Wind waves continue to ease as the winds diminish. A moderate west swell will continue through today before a northwest swell arrives on Monday and gradually builds throughout the coming week.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. None.

PUBLIC FORECAST: Rowe/Sims AVIATION: DK MARINE: DK

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 22 mi56 min S 1.9 G 4.1 55°F 56°F1017.2 hPa
ELXC1 - Elkhorn Slough Reserve, CA 32 mi89 min Calm 57°F 1017 hPa57°F
46092 - MBM1 32 mi67 min WSW 5.8 56°F 57°F1016.7 hPa (+1.2)
MLSC1 - Moss Landing, South Harbor, CA 32 mi35 min WNW 5.1 G 15 55°F 1017.7 hPa (+1.8)54°F
46042 - MONTEREY - 27NM West of Monterey Bay, CA 34 mi44 min NW 5.8 G 7.8 56°F 57°F1017.3 hPa54°F
46114 - West Monterey Bay, CA 37 mi44 min 57°F8 ft
46240 - Cabrillo Point, Monterey Bay, CA (158) 41 mi44 min 57°F3 ft
AAMC1 - 9414750 - Alameda, CA 41 mi62 min W 2.9 G 4.1 54°F 54°F1016.8 hPa
LNDC1 42 mi56 min NW 1.9 G 2.9 55°F 1016.7 hPa
MEYC1 43 mi98 min 58°F1016.7 hPa
OBXC1 44 mi56 min 55°F 55°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 44 mi56 min Calm G 2.9 54°F 1016.7 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi56 min W 4.1 G 5.1 55°F 1015.5 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 45 mi34 min WSW 1.9 G 5.8 56°F 56°F1017.3 hPa54°F
FTPC1 - 9414290 - San Francisco, CA 46 mi62 min SSW 2.9 G 5.1 54°F 54°F1016.8 hPa

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Jose, San Jose International Airport, CA13 mi21 minE 410.00 miMostly Cloudy58°F53°F84%1016.9 hPa
San Jose / Reid / Hillv, CA16 mi27 minN 09.00 miMostly Cloudy57°F53°F88%1017.3 hPa
Palo Alto Airport, CA19 mi27 minN 08.00 miMostly Cloudy55°F53°F94%1017.3 hPa
San Carlos Airport, CA24 mi27 minN 08.00 miMostly Cloudy55°F55°F100%1017.3 hPa
Watsonville, Watsonville Municipal Airport, CA24 mi21 minN 010.00 miLight Rain56°F54°F93%1017.5 hPa

Link to 5 minute data for KSJC

Wind History from SJC (wind in knots)
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2 days ago3SE9SW4SW7SW12SW10S3CalmCalmCalmSW9S4CalmSE3E4CalmS4SW5SE10SE10S5S55SE14

Tide / Current Tables for Gold Street Bridge, Alviso Slough, San Francisco Bay, California
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Gold Street Bridge
Click for Map
Sun -- 03:29 AM PST     Moonset
Sun -- 04:29 AM PST     2.00 feet Low Tide
Sun -- 07:09 AM PST     Sunrise
Sun -- 09:42 AM PST     9.64 feet High Tide
Sun -- 02:56 PM PST     Moonrise
Sun -- 04:49 PM PST     Sunset
Sun -- 05:43 PM PST     0.54 feet Low Tide
Sun -- 11:00 PM PST     7.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.94.83.62.62.12.23.45.57.79.39.69.17.96.34.52.81.50.70.61.53.156.57.1

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
Sun -- 01:59 AM PST     -0.71 knots Max Ebb
Sun -- 03:30 AM PST     Moonset
Sun -- 04:19 AM PST     0.00 knots Slack
Sun -- 06:57 AM PST     1.07 knots Max Flood
Sun -- 07:10 AM PST     Sunrise
Sun -- 09:58 AM PST     -0.01 knots Slack
Sun -- 02:26 PM PST     -1.15 knots Max Ebb
Sun -- 02:56 PM PST     Moonrise
Sun -- 04:49 PM PST     Sunset
Sun -- 05:16 PM PST     0.00 knots Slack
Sun -- 07:54 PM PST     1.15 knots Max Flood
Sun -- 11:00 PM PST     -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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-0.5-0.7-0.7-0.5-0.20.40.91.10.90.6-0-0.4-0.8-1-1.1-1.1-0.8-0.20.511.210.60

Weather Map
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GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (13,3,4,5)
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Ground Weather Radar Station San Francisco Bay Area, CA
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