Thursday, April25, 2019 L-36.com


Marine Weather and Tides
Brooktrails, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:20AMSunset 8:01PM Thursday April 25, 2019 4:41 PM PDT (23:41 UTC) Moonrise 12:35AMMoonset 10:19AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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- 237 Pm Pdt Thu Apr 25 2019
Tonight..N winds 10 to 20 kt. Waves nw 7 ft at 8 seconds. Patchy fog.
Fri..NW winds increasing to 15 to 25 kt. Waves nw building to 7 ft at 7 seconds.
Fri night..N winds 15 to 25 kt. Waves nw 7 ft at 8 seconds.
Sat..NW winds 15 to 25 kt. Waves nw 7 ft at 9 seconds.
Sat night..N winds 10 to 20 kt. Waves nw 8 ft at 10 seconds.
Sun..NW winds 10 to 20 kt. Waves nw 8 ft at 11 seconds.
Mon..NW winds 10 to 20 kt. Waves nw 7 ft at 10 seconds...and nw 2 ft at 17 seconds.
Tue..NW winds 10 to 20 kt. Waves nw 7 ft at 8 seconds.
PZZ400 237 Pm Pdt Thu Apr 25 2019
Synopsis for northern california waters..Moderate north winds will increase to near gale or gale force for Friday afternoon through Saturday along with steep short-period seas. In addition, a modest mid- period northwest swell will slowly diminish through Friday morning.


7 Day Forecast for Marine Location Near Brooktrails, CA
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location: 39.46, -123.35     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 252141
afdeka
area forecast discussion
national weather service eureka ca
241 pm pdt Thu apr 25 2019

Synopsis Warm temperatures can be expected across interior areas
through the weekend, with seasonally mild conditions along the
coast. Generally dry conditions will persist through next week. A
cooling trend will begin this weekend leading to more seasonal
temperatures next week.

Discussion High pressure is in place over the region this
afternoon. A weak shortwave approaching the pacific northwest
brought fairly widespread stratus to the coast this morning. Some
breaks have developed in the stratus this afternoon, but some
areas remain cloudy, especially south of CAPE mendocino. Tonight
this stratus is expected to expand again, although it may be
limited on the del norte coast.

Friday morning this shortwave moves past the area and winds will
increase during the day. This will help stratus clear out more
quickly and winds will increase through the afternoon. Gusts to 25
mph are expected late in the afternoon.

Saturday is expected to see high pressure over the area. Cooler
air aloft will slowly filter. This will keep inland temperatures
slightly cooler and the coastal inversion will be weaker. This
should keep stratus to a minimum, although it is still possible
in the eel river valley and possibly around humboldt bay. Breezy
north winds will increase slightly along the coast with gusts to
30 mph possible.

Sunday and Monday the pattern is expected to persist, although
winds at the coast will gradually weaken and the potential for
stratus will increase each day.

Monday night into Tuesday a stronger upper level trough is moving
down the north. The current trajectory keeps it mainly over land
and it will likely be fairly dry. If it moves slightly farther
west this could bring some showers to the interior or even rain
across the area, but currently it is expected to stay dry. This
trough will bring significantly cooler temperatures to the
interior areas as well, near seasonal normals. This cooler airmass
will also weaken the marine inversion and that should help to
reduce stratus along the coast. Wednesday and Thursday the area is
expected to remain in fairly cool northwest flow as several
shortwaves bring reinforcing shots of cold air to the region. This
should also limit the coastal stratus. Mkk

Aviation Widespread stratus was in place along the coast and
inland river valleys this morning. This afternoon it has clear
back to the coast in some areas, but others remain ifr. These
could clear briefly this evening, but tonight this stratus is
expected to expand again. Confidence is low on exactly how
widespread it will be on the del norte coast due to offshore flow
increasing up there. Friday morning this shortwave moves past the
area and winds will increase during the day. This will help
stratus clear out more quickly and winds will increase through the
afternoon. Gusts over 20 kt are expected late in the afternoon
along the coast. Inland areas will generally remainVFR, aside
from some of the river valleys that may see morning stratus. Mkk

Marine The combination of high pressure offshore and a
thermal trough over the central valley will continue to produce
gusty northerly winds over the coastal waters for the next several
days. Additionally, a passing upper level disturbance will yield
a slight increase in winds by late Friday, spurring a gale watch
across the outer waters through Saturday afternoon. This may need
to be extended into Saturday night. Meanwhile, slightly lower
winds and calmer seas can be expected for the next 24 hours or so
across the nearshore waters, with higher winds and seas mostly
confined to areas immediately downwind of CAPE mendocino. Guidance
does suggest that stronger winds and steeper seas will gradually
expand into the inner waters by Friday and into the weekend,
possibly necessitating some additional headlines for those zones
in later forecast packages. Aside from the steep wind driven seas,
the only other wave group of note is a small mid period swell on
the order of 3 to 5 feet which will continue to propagate through
the coastal waters through early Friday. CB mkk

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters...

gale watch from Friday afternoon through Saturday afternoon
for pzz470.

Small craft advisory until 3 pm pdt Friday for pzz470.

Gale watch from Friday evening through Saturday afternoon for
pzz475.

Small craft advisory until 9 pm pdt Friday for pzz475.

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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 37 mi42 min NW 7.8 G 9.7 51°F 49°F1015.4 hPa (-0.6)
ANVC1 - 9416841 - Arena Cove, CA 42 mi42 min NW 5.1 G 12 51°F 47°F1015.3 hPa (-0.5)

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA23 mi46 minWSW 710.00 miFair89°F37°F16%1011.3 hPa

Wind History from UKI (wind in knots)
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Last 24hrN8N4N8N6S4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3Calm--56SW7
1 day agoW83--CalmCalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalmCalm34CalmE33N7NW5NW8
2 days agoNW74N5N3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3CalmCalmCalmCalmNW9NW10
G17

Tide / Current Tables for Noyo River, California
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Noyo River
Click for Map
Thu -- 01:36 AM PDT     Moonrise
Thu -- 03:31 AM PDT     5.05 feet High Tide
Thu -- 06:24 AM PDT     Sunrise
Thu -- 10:53 AM PDT     0.09 feet Low Tide
Thu -- 11:21 AM PDT     Moonset
Thu -- 06:28 PM PDT     4.42 feet High Tide
Thu -- 08:02 PM PDT     Sunset
Thu -- 11:36 PM PDT     3.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.54.14.6554.63.82.81.70.80.20.10.30.91.72.63.444.44.44.13.83.43.2

Tide / Current Tables for Fort Bragg Landing, California
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Fort Bragg Landing
Click for Map
Thu -- 01:36 AM PDT     Moonrise
Thu -- 03:32 AM PDT     4.95 feet High Tide
Thu -- 06:24 AM PDT     Sunrise
Thu -- 10:45 AM PDT     -0.01 feet Low Tide
Thu -- 11:21 AM PDT     Moonset
Thu -- 06:29 PM PDT     4.32 feet High Tide
Thu -- 08:02 PM PDT     Sunset
Thu -- 11:28 PM PDT     3.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.544.54.94.94.53.72.71.60.60.1-00.30.91.72.63.344.34.343.63.33.1

Weather Map and Satellite Images
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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 (19,4,5,8)
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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.