Wednesday, January22, 2020
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Marine Weather and Tides
Santa Cruz, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 7:16AMSunset 5:22PM Tuesday January 21, 2020 11:26 PM PST (07:26 UTC) Moonrise 4:38AMMoonset 2:37PM Illumination 9% Phase: Waning Crescent; Moon at 27 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- 856 Pm Pst Tue Jan 21 2020
Tonight..S winds 5 to 15 kt, becoming east 5 to 10 kt after midnight. Wind waves 3 to 4 ft, decreasing to 1 to 2 ft after midnight. W swell 7 to 9 ft at 15 seconds. Rain, mainly this evening.
Wed..NW winds up to 10 kt. Wind waves 1 ft. W swell 7 to 9 ft at 15 seconds.
Wed night..E winds up to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft at 13 seconds.
Thu..NW winds up to 10 kt. Wind waves 1 to 2 ft. W swell 4 to 6 ft at 12 seconds.
Thu night..W winds up to 10 kt. Wind waves 1 ft. W swell 3 to 5 ft at 12 seconds and W up to 2 ft at 21 seconds.
Fri..W winds 10 to 20 kt with gusts up to 25 kt. Wind waves 1 ft. W swell 4 to 6 ft at 13 seconds and W 4 to 6 ft at 21 seconds.
Fri night..NW winds around 5 kt. Wind waves 1 ft. W swell 5 to 7 ft at 18 seconds and nw 3 to 5 ft at 19 seconds.
Sat..SW winds around 5 kt. Wind waves 1 ft. W swell 6 to 8 ft. A chance of rain.
Sun..W winds up to 10 kt. Wind waves 1 ft. W swell 5 to 7 ft. Rain likely. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 856 Pm Pst Tue Jan 21 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to locally gusty southerly winds will persist ahead of a cold front that will continue to move through the region tonight. Winds will generally be light in wake of the frontal passage. A longer period northwest swell will peak midweek generating hazardous seas conditions for smaller vessels. Another long period northwest swell will then arrive later this week.


7 Day Forecast for Marine Location Near Santa Cruz, CA
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location: 36.97, -122.02     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 220613 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1013 PM PST Tue Jan 21 2020

SYNOPSIS. Mostly dry and warmer conditions will return mid week with rain likely to return over the upcoming weekend.

DISCUSSION. as of 9:23 PM PST Tuesday . The cold front has generated mainly light rain and drizzle and continues to fizzle out as it moves southeast this evening. However, over the North Bay localized amounts of over 1 inch have been measured, for example Mt Veeder with 1.30 inches, 1.28 inches in Angwin, 1.49 inches Mill Valley/Mt Tam (locally higher amounts nearby) and 1.70 inches in Kentfield. To the south amounts dropped off fairly quickly with a few hundredths to locally a couple tenths of an inch to isolated amounts near one third to seven tenths of an inch over the East Bay to the Santa Cruz Mountains. Only a few hundredths of an inch have been measured on the North Central Coast.

Drier weather returns Wednesday and Thursday with warmer temperatures as an upper level ridge builds in from the west, patchy valley fog is likely at night and early morning hours. For additional information please see previous discussion.

PREV DISCUSSION. as of 2:33 PM PST Tuesday . Rain chances will decrease from north to south overnight with perhaps a few lingering showers around sunrise in parts of Monterey County. An upper level ridge will build over the the West Coast on Wednesday and Thursday, allowing for dry and warming conditions region-wide. There will likely be some overnight valley fog development, so there is some uncertainty in regard to maximum temperatures if, for example, low clouds/fog linger through the day in the North and East Bay Valleys. Locations with mostly clear skies in the afternoon will likely warm into the 60s with potential for middle and even upper 60s in parts of southern Monterey County.

Forecast guidance indicates another round of wet weather to return over the weekend to parts of northern and central California. At this point in time it appears to be a bit wetter than today's system, but the heaviest precipitation will be focused north and of our area. Looking ahead to next week, high pressure over the eastern Pacific will keep the storm track directed at the Pacific Northwest with northern California on the southern edge of these systems. The latest precipitation outlooks from the Climate Prediction Center gives much of the Bay Area and central California coast slightly favored odds of experiencing drier than normal conditions for both the 6-10 day and 8-14 day periods.

AVIATION. as of 9:55 PM PST Tuesday . For 06z TAFs. A weak frontal boundary continues to slide south across the forecast area bringing lower cigs, lower vsbys, as well as light rain to the Bay Area southward. Lingering low level moisture will keep patchy fog over Santa Rosa through tonight. Moderate southerly winds are expected ahead of the front. Winds will not see they typical switch to the west or northwest behind the front but rather turn variable or stay southerly. Winds will return to a more westerly direction Wednesday afternoon.

Vicinity of KSFO . MVFR/VFR conditions will prevail tonight with vcsh then tapering overnight. Moderate and locally gusty southerly winds will ease this evening becoming light and variable overnight then veer to the west Wednesday afternoon.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . MVFR/VFR cigs will prevail tonight with rain showers expected by this evening then tapering overnight. Light southeasterly winds will prevail overnight then veer to the west Wednesday afternoon.

MARINE. as of 8:56 PM PST Tuesday . Moderate to locally gusty southerly winds will persist ahead of a cold front that will continue to move through the region tonight. Winds will generally be light in wake of the frontal passage. A longer period northwest swell will peak midweek generating hazardous seas conditions for smaller vessels. Another long period northwest swell will then arrive later this week.

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



PUBLIC FORECAST: Canepa/Rowe AVIATION: CW MARINE: RGass

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46092 - MBM1 15 mi70 min S 14 55°F 54°F1021.8 hPa (+0.8)
MLSC1 - Moss Landing, South Harbor, CA 17 mi40 min NE 4.1 G 11 53°F 1023.1 hPa52°F
ELXC1 - Elkhorn Slough Reserve, CA 18 mi102 min Calm 53°F 1025 hPa52°F
46042 - MONTEREY - 27NM West of Monterey Bay, CA 24 mi37 min SSE 18 G 21 54°F 55°F13 ft1022.5 hPa53°F
46114 - West Monterey Bay, CA 24 mi27 min 55°F15 ft
46240 - Cabrillo Point, Monterey Bay, CA (158) 25 mi27 min 55°F6 ft
MEYC1 26 mi51 min 55°F1023 hPa
RTYC1 - 9414523 - Redwood City, CA 38 mi57 min 56°F 52°F1022.4 hPa
46239 - Point Sur, CA (157) 44 mi27 min 55°F14 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA12 mi34 minNNE 33.00 miLight Rain Fog/Mist53°F52°F96%1022.9 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
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Last 24hrN5W4CalmCalmCalmN3CalmW3SE4CalmCalmCalmSW5SW5SW5CalmSW3W5CalmCalmN3NE4CalmN3
1 day agoCalmCalmCalmCalmW3N3NW4CalmE3CalmCalmCalmNW4W66W7W7NW4W3CalmNW3NW4N5N5
2 days agoNE4E4E6E4E6E4NE3NE3CalmE44E6E3E4E7CalmE5CalmE5CalmCalmCalmCalmNE4

Tide / Current Tables for Santa Cruz, California
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Santa Cruz
Click for Map
Wed -- 01:59 AM PST     2.94 feet Low Tide
Wed -- 05:38 AM PST     Moonrise
Wed -- 07:17 AM PST     Sunrise
Wed -- 08:00 AM PST     6.08 feet High Tide
Wed -- 03:11 PM PST     -0.79 feet Low Tide
Wed -- 03:28 PM PST     Moonset
Wed -- 05:21 PM PST     Sunset
Wed -- 10:36 PM PST     4.52 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.63.12.93.13.74.45.25.86.15.84.93.620.6-0.4-0.8-0.6-00.81.933.94.44.5

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Wed -- 01:14 AM PST     -0.39 knots Max Ebb
Wed -- 04:15 AM PST     0.00 knots Slack
Wed -- 05:36 AM PST     Moonrise
Wed -- 07:08 AM PST     0.55 knots Max Flood
Wed -- 07:16 AM PST     Sunrise
Wed -- 09:53 AM PST     -0.00 knots Slack
Wed -- 01:17 PM PST     -0.99 knots Max Ebb
Wed -- 03:29 PM PST     Moonset
Wed -- 05:18 PM PST     0.00 knots Slack
Wed -- 05:22 PM PST     Sunset
Wed -- 08:29 PM PST     0.78 knots Max Flood
Wed -- 11:40 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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-0.3-0.4-0.4-0.3-0.10.20.50.50.50.3-0-0.5-0.8-1-1-0.8-0.5-0.10.30.60.80.80.60.3

Weather Map
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wmap_P
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (2,6,7,8)
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Ground Weather Radar Station San Francisco Bay Area, CA
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.