Thursday, July20, 2017 L-36.com


Marine Weather and Tides
Santa Cruz, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:03AMSunset 8:25PM Thursday July 20, 2017 7:27 PM PDT (02:27 UTC) Moonrise 2:22AMMoonset 4:52PM Illumination 7% 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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PZZ560 Pigeon Point To Point Pinos To 10 Nm- 222 Pm Pdt Thu Jul 20 2017
.small craft advisory in effect until 9 pm pdt this evening...
.small craft advisory in effect from Friday morning through Friday evening...
Tonight..NW winds 15 to 25 kt decreasing to 10 to 20 kt overnight. Wind waves 4 to 6 ft. Mixed swell nw 4 to 5 ft at 7 seconds and S 3 ft at 12 seconds. Patchy fog after midnight. Patchy drizzle after midnight.
Fri..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. NW swell 4 to 6 ft at 8 seconds. Patchy fog in the morning. Patchy drizzle in the morning.
Fri night..NW winds 15 to 25 kt. Wind waves 4 to 6 ft. NW swell 4 to 6 ft at 8 seconds. Patchy fog after midnight. Patchy drizzle after midnight.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft at 8 seconds. Patchy fog in the morning. Patchy drizzle in the morning.
Sat night..NW winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 8 seconds. Patchy fog after midnight. Patchy drizzle after midnight.
Sun..SW winds 5 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft. Patchy fog.
Mon..S winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft. Patchy fog.
Tue..W winds 10 kt. Wind waves 2 ft or less. NW swell 3 to 5 ft. Patchy fog.
PZZ500 222 Pm Pdt Thu Jul 20 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the eastern pacific will allow for breezy northwest winds to persist over the waters. These winds will produce local wind waves with areas of rough chop. The winds are expected to continue into the weekend, especially for the northern outer waters.

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 202341
afdmtr
area forecast discussion
national weather service san francisco bay area
441 pm pdt Thu jul 20 2017

Synopsis A building ridge of high pressure will lead to warmer
temperatures into the weekend. Patchy drizzle and fog at the coast
is also likely during the overnight hours.

Discussion As of 2:00 pm pdt Thursday... Today was close to a
carbon copy of yesterday with both temperatures and surface
gradients almost exactly the same. In fact, many stations are
within 3 degree of Wednesday at this time. Satellite shows mostly
clear conditions expect for a few pockets of clouds around the
coast. Look for clouds to return to almost all coastal spots plus
inland locations. Lows will be in the mid 40s to the mid 50s in
urban locations with warmer readings above 1,000 feet.

Synoptically a ridge of high pressure will build into our region
over the next several days which will lead to warmer conditions.

Temperatures will rise 2 to 5 degrees both tomorrow and Saturday
before leveling off on Sunday. Thankfully, no indications that we
will warm to values as great as what we saw from the past two heat
events. Even the warmest ECMWF ensemble member falls well short of
the previous weeks. Highs will range from 60s and 70s at most
coastal spots with 80s and 90s inland. Cannot rule out a few lower
100s for far northern and eastern spots, but those should be few
and far between. Heat risk guidance does not indicate an elevated
risk for any of our urban locations. Dry weather can also be
expected.

The ridge axis will progress to the east as a weak upper level
low approaches our region. This will lead to moderate cooling for
Monday through Wednesday. Temperatures will slowly build for the
second half of next week as the ridge tries to build back into
our area. 500 mb heights and 925 mb temperatures will both see
increases. At the same time some moisture may approach from the
southeast which could trigger a few showers on Wednesday or
Thursday. For now confidence is too low to add it to the grids.

Aviation As of 4:30 pm pdt Thursday. The marine layer has
deepened to around 1500 feet today but will start to compress
tonight as the upper trough over the pacnw lifts NE and the upper
high builds back over the southwest. Strong n-s gradients will
also make it difficult for stratus to spread inland. Expecting
stratus to spread through the golden gate and san bruno gap into
oak and sfo after 09z but remainingVFR in sjc sts and lvk.

Vicinity of ksfo...VFR through the airport evening rush. CIGS into
the sfo-oak vicinity after 09z. West winds gusting to 26-28 kt
through 06z.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Clouds over southern mry bay are
dissipating. CIGS have been in at mry most of the day but is
expected to clear out by 02z. So there may be a period ofVFR
conditions before ifr MVFR ceilings return after 06z.

Marine As of 4:30 pm pdt Thursday... High pressure over the
eastern pacific will allow for breezy northwest winds to persist
over the waters. These winds will produce local wind waves with
areas of rough chop. The winds are expected to continue into the
weekend, especially for the northern outer waters.

Mtr watches warnings advisories
Tngt Sca... Mry bay until 9 pm
sca... Pigeon pt to pt pinos 0-10 nm until 9 pm
sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 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: bell
aviation: W pi
marine: rowe
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46092 - MBM1 15 mi90 min W 19 56°F 54°F1014.9 hPa (-2.0)
ELXC1 - Elkhorn Slough Reserve, CA 18 mi103 min S 8 64°F 1016 hPa56°F
46114 - West Monterey Bay, CA 24 mi58 min 56°F5 ft
46240 - Cabrillo Point, Monterey Bay, CA (158) 25 mi37 min 57°F3 ft
MEYC1 26 mi52 min SW 4.1 G 7 59°F 58°F1017.7 hPa
46042 - MONTEREY - 27NM West of Monterey Bay, CA 26 mi38 min 57°F 56°F5 ft1017 hPa
RTYC1 - 9414523 - Redwood City, CA 38 mi52 min W 9.9 G 13 68°F 74°F1015.8 hPa
46239 - Point Sur, CA (157) 44 mi36 min 53°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 mi35 minSSE 910.00 miFair66°F55°F70%1016.4 hPa

Wind History from WVI (wind in knots)
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Last 24hrSE8E63NE5NE3NE3N3CalmE4Calm4CalmCalmE3Calm3S7S76SE7SE6SE7SE7SE9
1 day agoE7E4E5NE4CalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalmSE3S5SE7S5SE6S7SE8S8SE7
2 days agoSE5S4SE4CalmCalmCalmCalm--CalmCalmCalmCalmSE3CalmCalmS8S756SE7SE6SE8SE9SE10

Tide / Current Tables for Santa Cruz, Monterey Bay, California (sub)
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Santa Cruz
Click for Map
Thu -- 02:49 AM PDT     -0.46 feet Low Tide
Thu -- 03:22 AM PDT     Moonrise
Thu -- 06:04 AM PDT     Sunrise
Thu -- 09:22 AM PDT     3.60 feet High Tide
Thu -- 01:51 PM PDT     2.13 feet Low Tide
Thu -- 05:51 PM PDT     Moonset
Thu -- 08:22 PM PDT     6.29 feet High Tide
Thu -- 08:24 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.60.5-0.3-0.5-0.10.61.62.53.23.63.53.22.72.32.12.43455.86.36.25.54.2

Tide / Current Tables for Point Pinos, California Current
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Point Pinos
Click for Map
Thu -- 12:51 AM PDT     -0.98 knots Max Ebb
Thu -- 03:22 AM PDT     Moonrise
Thu -- 04:55 AM PDT     0.00 knots Slack
Thu -- 06:04 AM PDT     Sunrise
Thu -- 07:58 AM PDT     0.74 knots Max Flood
Thu -- 11:13 AM PDT     -0.00 knots Slack
Thu -- 01:27 PM PDT     -0.48 knots Max Ebb
Thu -- 04:40 PM PDT     0.00 knots Slack
Thu -- 05:50 PM PDT     Moonset
Thu -- 07:36 PM PDT     0.62 knots Max Flood
Thu -- 08:23 PM PDT     Sunset
Thu -- 10:28 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-1-0.9-0.7-0.400.40.70.70.70.40.1-0.3-0.5-0.5-0.3-0.20.10.40.60.60.50.2-0.2

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for San Francisco/Monterey Bay Area, CA (22,6,7,8)
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Ground Weather Radar Station San Francisco Bay Area, CA
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weather_mapweather_map weather_map

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Disclaimer:
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 numerious 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.