Sunday, July5, 2020
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Marine Weather and Tides
Pleasure Point, 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 5:53AMSunset 8:32PM Sunday July 5, 2020 6:59 PM PDT (01:59 UTC) Moonrise 8:23PMMoonset 5:14AM Illumination 100% Phase: Full Moon; Moon at 15 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- 218 Pm Pdt Sun Jul 5 2020
.small craft advisory in effect until 9 pm pdt this evening...
.small craft advisory in effect from Monday morning through Monday evening...
Tonight..W winds 15 to 25 kt with gusts up to 30 kt, becoming nw 5 to 15 kt late this evening. Wind waves 3 to 4 ft, decreasing to 1 to 2 ft late this evening. W swell 4 to 6 ft at 8 seconds and S 2 to 3 ft at 15 seconds.
Mon..W winds 20 to 30 kt with gusts up to 35 kt. Wind waves 4 to 5 ft. Mixed swell W 3 to 5 ft at 9 seconds and S 2 to 3 ft at 15 seconds.
Mon night..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 4 ft. W swell 4 to 6 ft at 8 seconds and sw around 2 ft at 15 seconds.
Tue..W winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. W swell 3 to 5 ft at 9 seconds and S around 2 ft at 14 seconds.
Tue night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 3 to 5 ft at 10 seconds and S around 2 ft at 14 seconds.
Wed..W winds 5 to 10 kt. Wind waves 1 ft. W swell 2 to 4 ft at 9 seconds and S around 2 ft at 14 seconds.
Wed night..NW winds 5 to 10 kt. Wind waves 1 ft. W swell 2 to 4 ft at 8 seconds and S around 2 ft at 14 seconds.
Thu..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft and S around 2 ft.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 218 Pm Pdt Sun Jul 5 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A 1028 mb high pressure center about 1000 miles west of cape mendocino will nudge closer to the coast through Monday. As a result, gusty northwest winds will continue over the coastal waters into midweek. Gale force gusts are most likely along the big sur coast Monday afternoon and evening. These strong northwest winds will generate steep fresh swell resulting in hazardous seas conditions. A long-period southerly swell will continue through Monday before swell periods begin to subside.


7 Day Forecast for Marine Location Near Pleasure Point, CA
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location: 36.95, -121.97     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 060044 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 544 PM PDT Sun Jul 5 2020

SYNOPSIS. Temperatures are warm and conditions are dry with breezy onshore winds. Monday afternoon high temperatures will be slightly cooler as onshore flow increases with a likely return of the marine layer for the immediate coastline. Temperatures are expected to be similar day- to- day midweek before warming likely late in the week and into next weekend.

DISCUSSION. as of 01:42 PM PDT Sunday . Temperatures Sunday are running similar to yesterday given the high pressure still located over the Bay Area region. A few observations in the North Bay are slightly warmer, but generally speaking the pattern and conditions are consistent to yesterday. Winds remain on onshore and have started to increase this afternoon. Despite the onshore direction, coupled with the dry conditions over inland areas, the winds could make fire containment challenging. However, as an update to the previous discussion, it appears that the Park Fire is now improved to 50% contained and crews and stopped its forward progress. Sky conditions remain clear as the nearest bit of cloud cover is over 100 miles off the California coast.

The pattern changes slightly beginning overnight tonight, being driven by an upper level trough currently northwest of the state of Washington. As it moves down the Pacific coast tonight, expect a deeper marine layer and a return of low clouds around the Monterey Peninsula. Winds will remain onshore but increase overnight as well, reaching farther inland. These cooler northwesterly winds will drive 5-7 degrees cooler temperatures on Monday, with isolated locations seeing a 10 degree cool down.

As the trough moves through, these cooler temperatures in the 70s and 80s will remain through the midweek. Winds will remain onshore and be breezy. In a return to the weather pattern from last week, high pressure to the southeast will once again build by the end of the week. The return of higher pressure puts a warming trend in the forecast for the weekend. Drier conditions prevail with no precipitation forecast.

AVIATION. as of 5:44 PM PDT Sunday . for 00Z TAFS. It's VFR, a few patches of coastal stratus and fog may redevelop tonight and Monday morning. At this time similar to yesterday a dry mid-latitude flow continues to prevent fog and stratus development. 24 hr trends in temperatures and dew point temperatures support high confidence VFR forecast for the evening and VFR continuing for the Bay Area tonight and Monday morning due to sufficient northerly pressure gradient and winds. Lower level cooling and weakening of the flat 500 mb height ridge is forecast tonight, Monday and Monday night which will likely weaken the marine layer temperature inversion at least a little bit and increase the marine layer depth.

The marine layer depth varies from 1,200 to 1,600 feet. A surface high pressure ridge over northern California is producing a 7.4 mb ACV-SFO pressure gradient and 2.2 mb UKI-STS gradient. The 18z NAM is under-forecasting the ACV-SFO pressure gradient by almost 2 mb which is quite likely resulting in stronger northwest winds over the coast than modeled. Also, visible imagery shows clear conditions over the coastal waters thus turbulent mixing and diffusion of much drier air at or above the marine temperature inversion continues to enter the boundary layer preventing marine fog and stratus from developing. On the flip side both UKI-STS and SFO-SMX gradients are over-forecast by the 18z NAM, although as mentioned the UKI-STS gradient is 2.2 mb, the gradient now strengthening closer to 18z NAM forecasts; the northerly gradient and winds is causing downsloping warming and drying over the North Bay, e.g. STS has sustained NW wind near 15 knots.

Not much let up in the strength of the aforementioned pressure gradients is forecast tonight and Monday morning.

Vicinity of KSFO . VFR. 5 minute obs showing a stronger west wind with gusts up over 30 knots likely into the evening close to airport weather warning criteria for winds, criteria is 35 knots or higher sustained or gusts. Looks good for VFR through the taf period given overall conditions mainly due to a strengthening northerly ACV-SFO pressure gradient, currently 7.4 mb. Similarly, a gusty west wind is forecast Monday and Tuesday afternoons and evenings per statistical guidance.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR. Not a clear cut VFR forecast for tonight with strengthening northerly gradients, though at least at the onset for the evening with plenty of mixing of drier air into the boundary layer should keep VFR going. Later tonight and Monday morning there's the possibility of patchy IFR in fog and stratus briefly forming until diurnal mixing mixes out any fog and/or stratus by late Monday morning.

MARINE. as of 01:42 PM PDT Sunday . A 1030 mb high centered 1000 miles west of Cape Mendocino will move closer to the coast through Monday. As a result, gusty northwest winds will continue over the coastal waters into midweek. Gale force gusts are possible along the Big Sur coast Monday afternoon and evening. Strong northwest winds will generate steep fresh swell resulting in hazardous seas conditions. A long- period southerly swell will continue through Monday before swell periods begin to subside.

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 Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Mry Bay until 9 PM



PUBLIC FORECAST: DK AVIATION: Canepa MARINE: RGass

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46092 - MBM1 14 mi140 min NW 18 59°F 57°F1014.1 hPa (-1.4)
MLSC1 - Moss Landing, South Harbor, CA 14 mi77 min SSW 8 G 22 62°F 1014.4 hPa54°F
ELXC1 - Elkhorn Slough Reserve, CA 15 mi74 min S 8 66°F 55°F
46240 - Cabrillo Point, Monterey Bay, CA (158) 23 mi93 min 61°F4 ft
MEYC1 24 mi83 min W 7 G 14 63°F 62°F1015.7 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 25 mi49 min NW 19 G 23 56°F 56°F1015.8 hPa53°F
46114 - West Monterey Bay, CA 26 mi63 min 56°F9 ft
RTYC1 - 9414523 - Redwood City, CA 41 mi65 min W 17 G 20 74°F 76°F1014.6 hPa
46239 - Point Sur, CA (157) 42 mi63 min 56°F9 ft

Wind History for Monterey, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA10 mi66 minSSE 910.00 miFair71°F53°F53%1014.3 hPa

Link to 5 minute data for KWVI

Wind History from WVI (wind in knots)
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Last 24hrS6S6CalmCalmCalmCalmCalmCalmCalmCalmCalmNW4CalmCalmCalm4SW6SW5S7S8S7S10S8S9
1 day agoS8SW5S5SE5CalmCalmCalmCalmCalmN3CalmCalmCalmCalmCalm33S6SW7SW8S6S7S7S6
2 days agoW7W6W5W3S4CalmCalmCalmCalmN3Calm3CalmCalmCalm36W7SW7W8SW7SW7SW8SW7

Tide / Current Tables for Santa Cruz, California
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Santa Cruz
Click for Map
Sun -- 05:23 AM PDT     -1.34 feet Low Tide
Sun -- 05:54 AM PDT     Sunrise
Sun -- 06:14 AM PDT     Moonset
Sun -- 12:56 PM PDT     4.45 feet High Tide
Sun -- 05:07 PM PDT     2.95 feet Low Tide
Sun -- 08:30 PM PDT     Sunset
Sun -- 09:23 PM PDT     Moonrise
Sun -- 11:00 PM PDT     5.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.23.82.10.5-0.7-1.3-1.2-0.70.21.32.53.54.24.44.23.73.233.13.64.35.15.76

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Sun -- 12:21 AM PDT     -0.00 knots Slack
Sun -- 03:44 AM PDT     -1.11 knots Max Ebb
Sun -- 05:55 AM PDT     Sunrise
Sun -- 06:14 AM PDT     Moonset
Sun -- 07:43 AM PDT     0.00 knots Slack
Sun -- 10:52 AM PDT     0.88 knots Max Flood
Sun -- 02:11 PM PDT     -0.00 knots Slack
Sun -- 04:25 PM PDT     -0.47 knots Max Ebb
Sun -- 07:31 PM PDT     0.00 knots Slack
Sun -- 08:29 PM PDT     Sunset
Sun -- 09:21 PM PDT     Moonrise
Sun -- 10:20 PM PDT     0.59 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1-0.3-0.7-1-1.1-1-0.7-0.30.10.60.80.90.80.50.1-0.3-0.5-0.5-0.3-0.10.10.40.60.6

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.
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Wind Forecast for San Francisco/Monterey Bay Area, CA (21,6,7,8)
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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.