Thursday, November23, 2017 L-36.com


Marine Weather and Tides
Fort Bragg, 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 7:04AMSunset 4:54PM Thursday November 23, 2017 7:55 PM PST (03:55 UTC) Moonrise 11:14AMMoonset 9:26PM Illumination 29% Phase: Waxing Crescent; Moon at 5 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- 311 Pm Pst Thu Nov 23 2017
Tonight..NW winds 5 to 10 kt. Waves sw 7 ft at 11 seconds. Scattered showers.
Fri..N winds 5 to 10 kt. Waves W 7 ft at 10 seconds.
Fri night..NE winds 5 to 10 kt. Waves nw 6 ft at 11 seconds.
Sat..SE winds 5 to 15 kt. Waves nw 4 ft at 9 seconds.
Sat night..S winds 15 to 25 kt. Waves S 9 ft at 8 seconds... And nw 6 ft at 19 seconds.
Sun..SW winds 15 to 20 kt. Waves sw 4 ft at 8 seconds...and W 14 ft at 14 seconds.
Mon..NW winds 10 to 15 kt. Waves nw 2 ft at 5 seconds...and W 15 ft at 14 seconds.
Tue..N winds 5 to 15 kt. Waves N 2 ft at 5 seconds...and nw 9 ft at 12 seconds.
PZZ400 311 Pm Pst Thu Nov 23 2017
Synopsis for northern california waters..Light winds will persist through Friday as high pressure moves over the waters. S winds will return on Saturday with gale force winds possible over the weekend. Steep seas will build in response to the winds.

7 Day Forecast for Marine Location Near Fort Bragg, CA
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location: 39.42, -123.8     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 232331
afdeka
area forecast discussion
national weather service eureka ca
331 pm pst Thu nov 23 2017

Synopsis Showery conditions will persist through this evening. A
slight reprieve from the rain will occur Friday and early Saturday
before yet another storm system brings rain and windy conditions
back to the area late Saturday through Monday. Travel impacts over
the weekend are possible, so holiday travelers should be sure to
monitor conditions and plan accordingly.

Discussion Showery conditions will continue through
the evening before a cold front clears the area. The passage of the
cold front will setup a dry day on Friday and much of Saturday with
highs in the upper 50's to low 60's across the region. On Saturday,
a storm system will begin to approach the pacific northwest which
will begin to enhance southeast winds across northwest california.

There still remains model discrepancies between the strength of the
low with very low run to run consistency. Until models come into
better agreement the exact strength of these enhanced winds are
still questionable. Either way, with southeast flow in place
humboldt bay should see much warmer conditions (mid to upper 60's)
on Saturday due to downsloping effects. Winds will continue to
increase through the evening and into the overnight hours where
strong winds are possible across the higher terrain with sustained
winds above 45mph with even stronger wind gusts. Winds will remain
elevated through Sunday morning and then gradually begin to diminish
through Sunday evening.

As far as precipitation with this storm system there still remain
numerous questions due to model discrepancies. As stated above
models have had very low consistency between runs on the exact
strength of this system which puts a large question mark on where
the heaviest precipitation will fall. Today's GFS run now has a
plume of moisture oriented more towards mendocino county rather
than the or coast as it was yesterday. The ECMWF has the plume of
moisture farther to the north and hence lower precipitation
amounts to the south. For the time being I have put less emphasis
on the GFS due to it being more of an outlier compared to the gfs
ensembles.

As the trough begins to move over northwest california late Sunday
colder air aloft will begin to filter into the region. A strong cold
front will be the main forcing mechanism for another round of
precipitation late Sunday through early Monday. With the much colder
air aloft this precipitation should be more convective in nature
rather than the stratiform rain that will occur late Saturday
through Sunday. Enhanced precipitation rates are possible with this
strong cold front however the exact locations that will be impacted
are still in question. This heavy precipitation will also
increase the possibility of rock and mudslides near mountainous
roads. The colder air aloft will allow any stronger rain shower to
produce graupel at the surface. Snow levels will also plummet
late Sunday and early Monday to around 3500 feet with accumulating
snow possible on the higher terrain and possible at the pass
levels of highways 36 and 3. Therefore, travelers need to pay
extra attention to the forecast this weekend to the multiple
hazards that will exist. Mostly dry conditions will prevail late
Monday through late next week however a weak cold front will pass
by the area Wednesday afternoon. Wci

Aviation Scattered showers continue to impact the redwood coast
terminals along with sea fog occasionally reducing visibilities to
ifr or lifr. Rains are expected to decrease later this evening and
overnight. MOS guidance is having trouble resolving what happens
after that, with most indicating improving visibilities and
gradually increasing ceiling heights. Have gone with a more
pessimistic forecast, but there remains much uncertainty in the
forecast. Low clouds and some fog are also possible later tonight at
kuki. Sec

Marine A weakening front will move east of the waters tonight
allowing surface high pressure to build over NW ca. This will result
in light winds and subsiding seas through Friday night. However,
southerly winds will increase rapidly once again on Saturday as the
next storm system develops off the west coast and moves NE toward
the pacific nw. A brief period of gales are likely by Saturday
evening over the outer waters, and a gale watch has been issued.

Brief storm force gusts are possible in the N outer waters before
frontal passage, particularly if the stronger GFS model pans out
with surface low development.

A brief decrease in wind speeds is expected Sunday morning with
winds expected to ramp back up again Sunday afternoon and evening as
another low quickly advances toward the region. Depending on this
low's track, strong westerlies may develop over the coastal waters
during this period along with the the potential for small hail in
stronger rain showers.

Steep, short period seas will develop during each period of strong s
to W winds. In addition to the steep seas a large westerly swell
will also build into the waters Sunday into Monday with heights of
13-17 feet at 14 seconds. Rpa&sec

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Gale watch from Saturday afternoon through late Saturday night
for pzz470.

Gale watch Saturday evening for pzz475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46263 7 mi115 min 58°F7 ft
46014 - PT ARENA - 19NM North of Point Arena, CA 16 mi45 min W 3.9 G 5.8 1019.9 hPa
ANVC1 - 9416841 - Arena Cove, CA 35 mi55 min NNE 5.1 G 6 59°F 57°F1020.7 hPa (+0.7)

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA37 mi2 hrsN 010.00 miFair60°F55°F84%1018.3 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmW3W3CalmW3CalmCalmNE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW3CalmCalmCalmCalmCalm
1 day agoW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW4W3Calm
2 days agoCalmE3CalmN3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW3W3W4CalmCalmCalm

Tide / Current Tables for Noyo River, California
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Noyo River
Click for Map
Thu -- 03:00 AM PST     4.60 feet High Tide
Thu -- 07:08 AM PST     Sunrise
Thu -- 07:36 AM PST     3.44 feet Low Tide
Thu -- 11:13 AM PST     Moonrise
Thu -- 01:09 PM PST     5.27 feet High Tide
Thu -- 04:54 PM PST     Sunset
Thu -- 08:31 PM PST     0.31 feet Low Tide
Thu -- 09:25 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.13.94.44.64.54.13.73.53.53.74.14.65.15.35.14.63.82.71.70.80.40.40.81.5

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Thu -- 03:27 AM PST     -0.00 knots Slack
Thu -- 05:32 AM PST     -0.56 knots Max Ebb
Thu -- 07:08 AM PST     Sunrise
Thu -- 08:55 AM PST     0.00 knots Slack
Thu -- 11:13 AM PST     Moonrise
Thu -- 11:34 AM PST     0.48 knots Max Flood
Thu -- 02:07 PM PST     -0.00 knots Slack
Thu -- 04:55 PM PST     Sunset
Thu -- 05:39 PM PST     -1.12 knots Max Ebb
Thu -- 09:26 PM PST     Moonset
Thu -- 09:35 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.80.60.2-0.2-0.5-0.5-0.4-0.200.30.40.50.30-0.3-0.7-1.1-1.1-0.9-0.6-0.20.20.6

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 (22,6,7,8)
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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.