Thursday, July27, 2017 L-36.com


Marine Weather and Tides
Caspar, 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 6:08AMSunset 8:30PM Thursday July 27, 2017 5:50 PM PDT (00:50 UTC) Moonrise 9:55AMMoonset 10:26PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 200 Pm Pdt Thu Jul 27 2017
.small craft advisory in effect through Friday afternoon...
Tonight..N winds 10 to 20 kt. Gusts up to 30 kt. Waves N 7 ft at 7 seconds. Patchy fog.
Fri..NW winds 10 to 20 kt. Gusts up to 30 kt. Waves N 6 ft at 7 seconds. Patchy fog.
Fri night..NW winds 10 to 20 kt. Gusts up to 30 kt. Waves N 7 ft at 7 seconds. Patchy fog.
Sat..NW winds 5 to 15 kt. Waves N 5 ft at 7 seconds.
Sat night..NW winds 5 to 15 kt. Waves N 5 ft at 7 seconds.
Sun..NW winds 5 to 15 kt. Waves N 6 ft at 7 seconds...and nw 2 ft at 14 seconds.
Mon..NW winds 5 to 10 kt. Waves N 5 ft at 7 seconds...and S 3 ft at 14 seconds.
Tue..NW winds 5 to 10 kt. Waves N 5 ft at 8 seconds...and S 5 ft at 13 seconds.
PZZ400 200 Pm Pdt Thu Jul 27 2017
Synopsis for northern california waters..Small craft northerly winds will persist over the outer waters during the next 7 days, with occasional gale force gusts possible Friday through Sunday. In addition, seas will remain fairly steep through the weekend and into early next week.

7 Day Forecast for Marine Location Near Caspar, CA
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location: 39.35, -123.83     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 272214
afdeka
area forecast discussion
national weather service eureka ca
314 pm pdt Thu jul 27 2017

Synopsis High pressure has built into the region and will
remain over the area through next week. Hot weather is expected
over the interior with night and morning low clouds and fog at
the coast clearing each afternoon.

Discussion High pressure over the area is warming temperatures
across the area today. Most inland areas will see highs this
afternoon 3 to 7 degrees above normal and a few degrees over
yesterday. Stratus is clearing back to the redwood coast and the
mendocino coast has remained clear. Tonight it looks fairly
similar with very little stratus on the mendocino coast. The
redwood coast may see some light drizzle again tonight.

Friday a weak shortwave moving over the ridge could bring the
potential for thunderstorms, but current models are not showing
enough moisture or very favorable mid level lapse rates. For now
it looks like we may just see some CU developing over the mtns.

This may keep temperatures the same or 1 to 2 degrees cooler than
Thursday.

Saturday the upper level trough will slowly move out of the area,
but heights build slightly so temperatures may warm 1-2 degrees.

The marine layer will likely continue to be fairly deep.

Sunday and Monday heights will continue to build over the area.

This will likely start to compress the marine layer and limit it
more to the coastal areas. This will help warm the near coastal
areas such as gasquet, kneeland, and boonville. Tuesday the gfs
shows heights backing off slightly with a brief trough. Models are
hinting that ahead of this system there could be a thunderstorm or
two on Monday over the mountains. This is first run this has been
noticed confidence is low and have not added them to the
forecast.

Current model runs show Wednesday and Thursday to be the warmest
day with heights building to over 596dam on both the GFS and
ecmwf. It may reach heat advisory criteria with temperatures
around 105 in ukiah and a couple degrees less than that in
weaverville. Mkk

Fire weather Tonight northerly winds will be 10 to 15 mph over
the ridges of mendocino county. In southern and eastern mendocino
county we may see poor rh recoveries over the higher terrain. In
humboldt and del norte counties there will be some offshore flow,
but rh recoveries are still expected to continue. Will add a
headline to highlight this threat. This will linger into Friday
morning, but lighter winds are expected for the weekend. Mkk

Aviation A consistent "marine stratus" weather pattern has
continued along the north coast for several days or so. This has
resulted in acv & cec airports having mostly overcast conditions
with partial afternoon and some evening clearing. CIGS and vis
have therefore persistently dropped into the ifr-
lifr... Occasionally MVFR. Guidance and local weather profilers
indicate no appreciative changes in the next 24-36 hours. Inland
mountain areas, including uki will remain heat up and remainVFR.

Ta

Marine Surface high pressure over the nern pacific combined with a
thermally induced trough of low pressure over interior ca will aid
in a prolonged period of northerly small craft winds over the outer
waters during the next 7 days. Borderline gale conditions will be
possible Friday through Sunday due to warming inland temperatures
further tightening the coastal pressure gradient. In addition,
marginal small craft seas (around 6 feet at 6 seconds) are expected
to continue across the inner waters through tomorrow... Thus the
current SCA has been extended otherwise, model guidance continues to
show a long period southerly swell spreading across the coastal
waters by the middle of next week.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters...

small craft advisory until 5 am pdt Friday for pzz450-455.

Small craft advisory until 5 pm pdt Sunday for pzz470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46014 - PT ARENA - 19NM North of Point Arena, CA 11 mi40 min NNW 14 G 18 1015.3 hPa
ANVC1 - 9416841 - Arena Cove, CA 31 mi50 min NW 8 G 14 59°F 51°F1015.6 hPa (-1.1)

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA36 mi54 minW 1110.00 miFair97°F50°F20%1010.9 hPa

Wind History from UKI (wind in knots)
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Last 24hrN6NE6N6NW3S3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm34E4SE764SW10W11
1 day agoNE7S54S3SE3S4S4S3S5CalmS4S3CalmCalmS3CalmE334CalmSE10SE10SW7W6
2 days agoSE9S9S7S6S7S5S4S4E3S3S3CalmCalmSE4SE6SE5E4SE4SE7SE6SE9SE11
G17
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Tide / Current Tables for Mendocino, Mendocino Bay, California
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Mendocino
Click for Map
Thu -- 02:11 AM PDT     5.56 feet High Tide
Thu -- 06:11 AM PDT     Sunrise
Thu -- 08:47 AM PDT     -0.09 feet Low Tide
Thu -- 10:55 AM PDT     Moonrise
Thu -- 03:32 PM PDT     5.28 feet High Tide
Thu -- 08:31 PM PDT     Sunset
Thu -- 09:18 PM PDT     1.81 feet Low Tide
Thu -- 11:26 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.45.25.65.44.63.42.10.90.1-0.10.31.22.53.74.75.25.24.73.932.21.81.92.4

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Thu -- 12:05 AM PDT     0.91 knots Max Flood
Thu -- 03:00 AM PDT     -0.00 knots Slack
Thu -- 05:59 AM PDT     -1.31 knots Max Ebb
Thu -- 06:11 AM PDT     Sunrise
Thu -- 09:47 AM PDT     0.00 knots Slack
Thu -- 10:55 AM PDT     Moonrise
Thu -- 12:46 PM PDT     1.10 knots Max Flood
Thu -- 04:02 PM PDT     -0.00 knots Slack
Thu -- 06:35 PM PDT     -0.97 knots Max Ebb
Thu -- 08:32 PM PDT     Sunset
Thu -- 10:17 PM PDT     0.00 knots Slack
Thu -- 11:26 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.80.50-0.6-1.1-1.3-1.2-0.8-0.40.10.711.10.90.60-0.6-0.9-1-0.8-0.5-0.10.3

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 Eureka, CA (20,4,5,8)
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Ground Weather Radar Station Eureka, 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.