Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
Comptche, CA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:57AMSunset 7:14PM Wednesday September 19, 2018 7:18 PM PDT (02:18 UTC) Moonrise 3:36PMMoonset 12:46AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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- 352 Pm Pdt Wed Sep 19 2018
.small craft advisory in effect through Thursday evening...
Tonight..N winds 15 to 25 kt with gusts to around 35 kt. Waves N 9 ft at 9 seconds.
Thu..NW winds 15 to 25 kt. Waves N 8 ft at 8 seconds.
Thu night..N winds 15 to 25 kt. Waves nw 8 ft at 8 seconds.
Fri..NW winds 5 to 15 kt. Waves N 5 ft at 7 seconds...and nw 2 ft at 13 seconds.
Fri night..NW winds 10 to 20 kt. Waves nw 6 ft at 7 seconds... And nw 2 ft at 12 seconds.
Sat..NW winds 10 to 15 kt. Waves nw 5 ft at 6 seconds...and nw 3 ft at 13 seconds.
Sun..NW winds 10 to 20 kt. Waves N 5 ft at 5 seconds.
Mon..N winds 5 to 15 kt. Waves nw 4 ft at 8 seconds.
PZZ400 352 Pm Pdt Wed Sep 19 2018
Synopsis for northern california waters..Brisk northerly winds will persist across the coastal waters through the work week. Winds and steep seas peaking this evening will remain at advisory criteria into Thursday before gradually diminishing by Friday.


7 Day Forecast for Marine Location Near Comptche, CA
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location: 39.25, -123.48     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 192153
afdeka
area forecast discussion
national weather service eureka ca
253 pm pdt Wed sep 19 2018

Synopsis High pressure will continue to provide clear skies
and seasonable temperatures through Friday for northwest
california. Temperatures will reach into the 80s and low 90s in
the interior valleys Thursday and Friday. A marine push will
arrive for the weekend behind a dry front, bringing coastal clouds
and slightly cooler tempertures.

Discussion Northwest california is devoid of any clouds this
afternoon, with more glorious september weather. The exceptions
to perfection are few and far between. Surface high pressure
offshore continues to build, resulting in stronger northerly winds
over the coastal waters, which are keeping the beaches quite brisk
and cooler, especially closer to headlands. There is a little
localized smoke and haze in far northeast trinity county near the
delta fire, though less smoke is being produced compared to
previous days. Temperatures are running at least a couple degrees
warmer than yesterday at this time. High pressure will continue to
build aloft heading into Thursday and Friday, which will result in
more substantial warming for inland areas. High temps are still on
track to reach into the 80s and even some mid 90s in the hottest
interior valley spots. The coast will remain seasonably cooler,
but largely devoid of fog and clouds, though some localized bits
of stratus particularly around humboldt bay cannot be ruled out
for the next couple of nights.

On Friday night into Saturday, the tail end of a cold front will
pass by, without any precipitation in northern california.

However, this front will bring a push of marine air, with much
more coastal clouds this weekend, possibly even lingering during
the afternoon hours on Saturday. Temperatures will cool off a
little inland, especially in areas adjacent to the coast, as
marine air pushes farther inland. However, heading into next week,
models are still advertising a more prominent offshore flow
pattern, which will result in above normal temperatures for our
entire area, including at the coast. Expect very little in the way
of coastal clouds and fog, with 70s possible even near the beaches
next week. Aad

Aviation Marine stratus was quite splintered along the north
coast this morning except the eel delta to trinidad. The layer
was a little deep with stratus once again extending well into
humboldt's local river valleys. Even then, clouds were not quite
as established as previously mornings and dissipated rapidly after
sunrise. Gusty surface winds were a near repeat of yesterday
mainly at cec. Through the period, any low clouds returning to the
coast will be patchy. Cec: expect slivers of stratus, however
overcast low CIGS developing overnight remains "iffy" at this
point... Especially with winds remaining brisk into the evening and
little drier conditions. Acv: expect mid based marine stratus to
redeveloped over the eel delta to trinidad. Inland: conditions
will remainVFR other than a few isolated pockets of early morning
low cloud fog over some river valleys. Ta

Marine Strong northerly winds will continue through today in
response to a pressure gradient created by a thermal trough over
interior california. Seas will continue to build today, with seas
expected to be between 8 to 11 feet at 7 to 9 seconds. Gusts near
gale force will be possible across the outer waters, along with
near and downwind of CAPE mendocino. Winds and seas will gradually
begin to calm later this week, with conditions expected to drop
below advisory level Thursday night into Friday. Otherwise, a
southerly swell with a period around 16 seconds will return
Friday. Wci

Fire weather While there will be some localized lower humidity
recoveries and breezier northeast winds over the higher ridges of
del norte county once again tonight, the greater concern
continues to be for far eastern mendocino and lake counties
tonight and Thursday. NWS sacramento and monterrey have gone ahead
with red flag warnings for their adjacent zones for low humidity
and gusty winds. Model guidance indicates that the higher terrain
over eastern mendocino and lake county in particular will see
afternoon rh in the teens, and recoveries only into the 30s
Thursday and Friday mornings. However, winds outside of some
localized exposed ridgetops appear that they will be light in our
zones, with any stronger winds staying in the red flag warning
areas to our south and east. Somewhat cooler weather with improved
rh is projected for the weekend, but then next week looks like it
will bring warmer temperatures and lower humidity, even closer to
the coast. Aad

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory
until 9 am pdt Thursday for pzz450.

Small craft advisory until 9 pm pdt Thursday for pzz455-470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 26 mi37 min NW 2.9 G 8 59°F 50°F1013.8 hPa
46014 - PT ARENA - 19NM North of Point Arena, CA 26 mi29 min NW 27 G 31 58°F 55°F10 ft1012.3 hPa55°F

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA17 mi23 minNNE 510.00 miFair76°F34°F22%1010.6 hPa

Wind History from UKI (wind in knots)
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Last 24hrN6CalmCalmCalmSE3S4CalmCalmNW5N3CalmCalmCalmNW3N3N4CalmNE4NW6NW11NW9NW86NE5
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3CalmCalmCalmCalmCalmCalmNW12
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2 days agoN5W3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW46NW11NW8
G15
N8N6N4

Tide / Current Tables for Albion, California
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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 Cabrillo, California Current
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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wmap_P
GOES 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 Eureka, CA (22,6,7,8)
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Ground Weather Radar Station Beal AFB, CA
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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.