Monday, May25, 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 5:51AMSunset 8:19PM Monday May 25, 2020 1:33 AM PDT (08:33 UTC) Moonrise 7:13AMMoonset 10:22PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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- 842 Pm Pdt Sun May 24 2020
Tonight..NW winds 10 to 20 kt. Wind waves 6 to 7 ft. W swell around 2 ft at 14 seconds.
Memorial day..NW winds 5 to 15 kt. Wind waves 4 to 5 ft. NW swell 6 to 7 ft at 12 seconds.
Mon night..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. NW swell 6 to 7 ft at 13 seconds and sw around 2 ft at 21 seconds.
Tue..NW winds 5 to 10 kt. Wind waves 1 ft. NW swell 5 to 6 ft at 12 seconds and sw around 2 ft at 20 seconds.
Tue night..NW winds up to 10 kt. Wind waves 1 ft. NW swell 5 to 6 ft at 12 seconds and sw around 2 ft at 19 seconds.
Wed..NW winds 5 to 10 kt. Wind waves 1 ft. NW swell 4 to 5 ft at 11 seconds and sw around 2 ft at 18 seconds.
Wed night..NW winds 5 to 10 kt. Wind waves 1 ft. NW swell 3 to 5 ft at 11 seconds and sw around 2 ft at 17 seconds.
Thu..W winds up to 10 kt. Wind waves 1 ft. Mixed swell nw 3 to 5 ft and sw 2 to 3 ft.
Fri..S winds 5 to 15 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft and sw around 2 ft.
PZZ500 842 Pm Pdt Sun May 24 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure off the northern california coast will weaken tonight resulting in decreasing northwest winds especially in the southern waters. Mixed seas will persist with a short period northwest swell and a longer period southwest swell.


7 Day Forecast for Marine Location Near Santa Cruz city, 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 250517 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1017 PM PDT Sun May 24 2020

SYNOPSIS. A robust warming trend will continue over the next few days. Temperatures will likely peak near the coast on Memorial Day and Tuesday and for inland areas on Tuesday and Wednesday. Near record to record temperatures are possible, especially for inland areas Tuesday and/or Wednesday. A Heat Advisory has been posted for interior portions of the San Francisco Bay Area and Central Coast from Monday through Thursday.

DISCUSSION. As of 8:40 PM PDT Sunday . Temperatures were just a few degrees warmer at the immediate coast today compared to Saturday, but temps were as much as ten degrees warmer inland as an upper ridge offshore shifted towards the coast and onshore flow weakened slightly. Several of the warmer inland valley locations climbed past 90 this afternoon. Meanwhile, temps at the ocean beaches remained in the 60s, even with a full day of sun, as cool onshore breezes persisted.

The warming trend will continue on Memorial Day as the upper ridge axis shifts directly over California and 850 mb temps under the ridge warm to 20 deg C, or more. In addition, onshore flow is forecast to weaken further. Inland temperatures will warm into the upper 80s and 90s and a few of the warmest inland valley locations will likely reach 100. Widespread Moderate Heat Risk is projected for our inland areas on Monday, with isolated pockets of High Heat Risk. A Heat Advisory goes into effect for all inland valleys and hills starting at 11 am tomorrow. Onshore flow will weaken enough to allow coastal temps to warm tomorrow as well. However, models predict at least a weak afternoon seabreeze which should keep most coastal temps in the 70s or lower 80s.

Warming will continue in all areas into Tuesday as the upper ridge continues to strengthen over California. Additional warming at the coast is expected to be limited to only a degree or two, while inland areas may see their temps climb another five degrees. Triple digit heat will become more common in the interior valleys and areas of High Heat Risk will expand across inland areas. The Heat Advisory will remain in effect for inland areas on Tuesday.

For several days now models have suggested that the warmest days of this week's heat event would be Tuesday and Wednesday, both for coastal locations and inland locations. But latest model output suggests that onshore flow will begin to increase close to the ocean on Wednesday as the upper ridge axis shifts slightly inland. Thus, it now appears that the warmest days at the coast will be Monday and Tuesday, with slight cooling likely to begin on Wednesday. Inland areas, however, are still expected to experience their warmest temps on Tuesday and Wednesday with some spots likely peaking on Wednesday. Areas of High Heat Risk will continue to expand across inland areas on Wednesday due hot daytime temps and the prolonged period of hot weather by this time, but also due to less overnight cooling as nighttime lows only drop into the lower 60s. The Heat Advisory will remain in effect for inland areas on Wednesday.

Coastal areas will almost certainly experience at least modest cooling on Thursday as the upper ridge axis shifts well to our east and an upper low offshore begins to approach. Most MOS guidance indicates cooling inland as well, but this seems less likely due to the fact that the omega block centered over the Western States will be slow to break down. Although at least a few degrees of cooling is expected in most areas, temps will still be warm enough on Thursday to maintain the Heat Advisory for inland areas, especially when factoring in the multi-day impact of the heat by that point.

Relief from the heat is expected in all areas on Friday as southerly flow developing ahead of the approaching upper low helps push cooler marine air inland. The upper low may produce scattered showers and isolated thunderstorms on Saturday as it reaches the northern California coast. The focus now remains on the impending heat event, but over the coming days there will be a need to assess the likelihood of precipitation or thunderstorms by next weekend.

AVIATION. as of 10:20 PM PDT Sunday . Airmass continues to be dry and stable over the area. chances of low clouds returning to the Monterey Bay looking less likely as humidities are 10-12 percent lower than yesterday.

Vicinity of KSFO . VFR. Northwest winds 15-20 kt decreasing after 04Z.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Patchy low clouds may develop in MRY Bay after 12Z possibly bringing IFR cigs into MRY for a few hours. Any low clouds will burn off 15Z.

CLIMATE.

Record highs May 25 May 26 May 27 ----------------------------------------------------------------- Santa Rosa 96/1951 96/1974 94/1984 Kentfield 92/1992 99/1951 99/1919 Napa 98/1951 98/1896 102/1984 Richmond 92/1951 87/1996 98/1984 San Francisco DT 87/1951 91/1896 85/1933 SFO Airport 87/1951 89/1974 97/1984 Redwood City 99/1982 98/1974 98/1984 Half Moon Bay 78/1975 78/1951 72/1982 Oakland DT 90/1975 94/1974 100/1984 San Jose 95/1982 95/1951 101/1984 Gilroy 98/1982 98/1979 101/1974 Santa Cruz 95/1896 94/1896 93/1984 Salinas 85/1984 94/1974 84/2003 King City 102/1951 104/1974 104/1984

MARINE. as of 10:15 PM PDT Sunday . High pressure off the northern California coast will weaken tonight resulting in decreasing northwest winds especially in the southern waters. Mixed seas will persist with a short period northwest swell and a longer period southwest swell.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pt Arena to Pt Reyes 0-10 nm until 3 AM



PUBLIC FORECAST: Dykema AVIATION: W Pi MARINE: W Pi

Visit us at www.weather.gov/sanfrancisco

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46092 - MBM1 15 mi125 min WNW 9.7 54°F 53°F1012.8 hPa (+0.0)
MLSC1 - Moss Landing, South Harbor, CA 17 mi48 min Calm G 0 56°F 1013.6 hPa53°F
ELXC1 - Elkhorn Slough Reserve, CA 18 mi48 min ENE 2.9 53°F 52°F
46042 - MONTEREY - 27NM West of Monterey Bay, CA 24 mi23 min NW 9.7 G 12 55°F 55°F1013.3 hPa53°F
46114 - West Monterey Bay, CA 25 mi33 min 56°F6 ft
46240 - Cabrillo Point, Monterey Bay, CA (158) 25 mi63 min 61°F2 ft
MEYC1 26 mi57 min S 2.9 G 4.1 58°F 63°F1013.3 hPa
RTYC1 - 9414523 - Redwood City, CA 38 mi45 min N 2.9 G 4.1 66°F 71°F1013.1 hPa
46239 - Point Sur, CA (157) 44 mi33 min 56°F6 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA12 mi40 minN 310.00 miFair57°F52°F83%1013.2 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
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Last 24hrCalmNW3NW3CalmCalmCalmCalmCalmCalmCalm3SW75SW6SW7S7S7S7S4SE4CalmCalmCalmN3
1 day agoCalmN3N3N3CalmCalmCalm3Calm44SW8SW7SW8S8S6SE7SE5S6S6E4E6CalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalm3CalmSW9S7S6SW8S10SE7E74SE7E7E7E4NE3E3Calm

Tide / Current Tables for Santa Cruz, Monterey Bay, California (sub)
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Mon -- 01:51 AM PDT     -0.00 knots Slack
Mon -- 05:33 AM PDT     -0.95 knots Max Ebb
Mon -- 05:53 AM PDT     Sunrise
Mon -- 08:14 AM PDT     Moonrise
Mon -- 09:21 AM PDT     0.00 knots Slack
Mon -- 12:26 PM PDT     0.68 knots Max Flood
Mon -- 04:05 PM PDT     -0.00 knots Slack
Mon -- 06:10 PM PDT     -0.39 knots Max Ebb
Mon -- 08:16 PM PDT     Sunset
Mon -- 08:55 PM PDT     0.00 knots Slack
Mon -- 11:20 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.2-0-0.4-0.7-0.9-0.9-0.7-0.4-0.10.20.50.70.70.50.30-0.3-0.4-0.3-0.200.20.3

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 (4,6,7,8)
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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.