Friday, February22, 2019 L-36.com


Marine Weather and Tides
Fort Bragg, 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 6:53AMSunset 5:58PM Friday February 22, 2019 1:06 AM PST (09:06 UTC) Moonrise 9:56PMMoonset 9:08AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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- 859 Pm Pst Thu Feb 21 2019
.small craft advisory in effect through Friday afternoon...
Tonight..N winds 15 to 25 kt...easing to 10 to 15 kt. Waves N 7 ft at 8 seconds...and nw 8 ft at 14 seconds.
Fri..N winds 10 to 20 kt. Waves N 6 ft at 6 seconds...and nw 7 ft at 13 seconds.
Fri night..N winds 10 to 20 kt...easing to 5 to 10 kt. Waves N 6 ft at 6 seconds...and nw 6 ft at 13 seconds. Slight chance of showers.
Sat..SW winds 5 kt. Waves nw 5 ft at 13 seconds.
Sat night..S winds 5 to 10 kt. Waves nw 6 ft at 14 seconds.
Sun..S winds 10 to 20 kt. Waves sw 5 ft at 5 seconds...and nw 5 ft at 12 seconds.
Mon..S winds 15 to 20 kt. Waves sw 9 ft at 8 seconds...and W 2 ft at 11 seconds.
Tue..S winds 15 to 20 kt. Waves S 4 ft at 6 seconds...and W 4 ft at 9 seconds.
PZZ400 859 Pm Pst Thu Feb 21 2019
Synopsis for northern california waters..Moderate to strong northerly breezes and steep seas will slowly diminish through Friday. A moderate northwesterly swell accompanies will slowly diminish tonight and Friday as well. Southerly winds will return on Saturday and strengthen early next week.


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 212235
afdeka
area forecast discussion
national weather service eureka ca
235 pm pst Thu feb 21 2019

Synopsis Cool dry conditions can be expected across the region
tonight into Friday. Thereafter, showers will spread across del
norte and humboldt counties during Saturday, followed by the
potential for widespread moderate to heavy rain from Sunday
through the middle of next week.

Discussion A dry and chilly air mass over the region tonight
will result in cold overnight temperatures for much of nw
california. Temperatures may dip to 29f or less for a few
hours early Friday morning in some of the coastal river valleys
around humbodlt bay. Steady NE winds this evening will initially
keep temperatures from rapidly falling. Once winds decouple
temperatures are expected to plummet, bottoming out in the upper
20s by daybreak Friday. A marginal hard freeze warning has been
hoisted for primarily the coastal river valleys around humboldt
bay.

Dry conditions are expected to continue through the day on Friday
as a shortwave ridge slowly transitions across the area. This
ridge will flatten out by Friday evening. Late Friday night into
Saturday, model guidance continues to indicate an upper trough
sagging southward along the pacific nw, establishing a moist
westerly flow directed at far northwest california. The initial
push of moist air and showers will be aimed at del north county
and perhaps far northern humboldt counties on Saturday. Snow
levels will still be fairly low Saturday morning with an inch or
so possible above 1500-2500 ft. Overall the threat for substantial
and impactful snow accumulations remains low at this time. Snow
levels should slowly rise through the day on Saturday as moist
onshore flow and shower activity increases and spreads farther
inland. Winter weather products are not highly anticipated at this
time due to the warmer nature of this storm (higher snow levels)
as we head into the latter portion of the weekend when the heavier
rain is expected to arrive. Lower snow levels may persist across
eastern trinity county on Sunday, however. This will need to be
evaluated over the next day or two for possible impacts to travel.

The main forecast problem as we head into the latter portion of
the weekend and early next week is the potential for moderate to
heavy rain as snow levels rise to 4000 to 5000 feet. Gfs, ecmwf
as well as the GEFS indicate a weak ar (atmospheric river)
affecting the region by early next week.

A wet and active large-scale pattern is forecast to continue
through much of the next week. However, multi-model guidance
indicates the timing, position, and magnitude of rain producing
systems is uncertain at the mesoscale. This yields low confidence
in possible impacts associated with hydrology.

Aviation WidespreadVFR conditions have prevailed today across
all terminals and are expected to continue through tomorrow morning.

The gusty NW winds which have developed should diminish after
sunset, replaced with light offshores at the coast and
light, variable winds inland. Tdj

Marine Steep, wind-driven northerly seas and a moderate mid
period northwest swell will continue to produce potentially
hazardous conditions across the coastal waters of northern ca
through this evening. Gale force gusts which have spread over the
southern outer waters and may also impact isolated portions of the
northern outer zone through late this evening. Depending on how
quickly this NW swell fades this evening, may also need to extend
the small craft advisories just a bit longer into tonight across the
nearshore waters. Conditions will begin to improve by late tonight
as the pressure gradient slackens in response to high pressure
offshore shifting closer to the coast. Northerly winds and
corresponding short period seas will quickly diminish as a result,
with the NW swell also beginning to subside by Friday morning. This
will support calmer conditions for at least Friday and Saturday
before the next series of systems begins to impact the region later
this weekend. CB tdj

Eka watches warnings advisories
Ca... Hard freeze warning from 3 am to 9 am pst Friday for caz103.

Northwest california coastal waters...

small craft advisory until 9 pm pst this evening for pzz450-455.

Small craft advisory until 3 am pst Friday for pzz470.

Gale warning until 9 pm pst this evening 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 16 mi46 min N 16 G 18 51°F 53°F1015.7 hPa42°F
ANVC1 - 9416841 - Arena Cove, CA 35 mi48 min N 1.9 G 4.1 42°F 51°F1015.6 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA37 mi70 minW 310.00 miFair34°F24°F67%1015.5 hPa

Wind History from UKI (wind in knots)
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Last 24hrNE4CalmSW3W3NW3CalmN3CalmCalmCalmN6N6NW10
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1 day agoN4CalmS3CalmCalmCalmS3CalmCalmCalmN8NW11N9NW11
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2 days agoNW3CalmCalmNW3CalmCalmCalmNW3CalmCalmCalmCalmCalmE4W8NW6CalmSE3N5N5N7W3CalmSW4

Tide / Current Tables for Noyo River, California
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Noyo River
Click for Map
Fri -- 01:08 AM PST     6.07 feet High Tide
Fri -- 06:58 AM PST     Sunrise
Fri -- 07:04 AM PST     1.18 feet Low Tide
Fri -- 09:07 AM PST     Moonset
Fri -- 01:01 PM PST     5.88 feet High Tide
Fri -- 05:59 PM PST     Sunset
Fri -- 07:21 PM PST     0.37 feet Low Tide
Fri -- 09:56 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.66.15.853.72.41.51.21.52.33.54.65.55.95.64.73.420.90.40.51.32.43.7

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Fri -- 01:41 AM PST     -0.00 knots Slack
Fri -- 04:22 AM PST     -1.19 knots Max Ebb
Fri -- 06:58 AM PST     Sunrise
Fri -- 07:53 AM PST     0.00 knots Slack
Fri -- 09:08 AM PST     Moonset
Fri -- 10:46 AM PST     1.06 knots Max Flood
Fri -- 01:50 PM PST     -0.00 knots Slack
Fri -- 04:41 PM PST     -1.27 knots Max Ebb
Fri -- 05:59 PM PST     Sunset
Fri -- 08:19 PM PST     0.00 knots Slack
Fri -- 09:56 PM PST     Moonrise
Fri -- 11:15 PM PST     1.09 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.4-0.2-0.8-1.2-1.1-0.9-0.40.10.611.10.90.5-0.1-0.7-1.2-1.3-1-0.7-0.20.40.91.1

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 (4,6,7,8)
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Ground Weather Radar Station Eureka, 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.