Tuesday, November20, 2018 L-36.com


Marine Weather and Tides
Little River, 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 7:01AMSunset 4:56PM Tuesday November 20, 2018 3:59 AM PST (11:59 UTC) Moonrise 3:53PMMoonset 4:06AM Illumination 93% Phase: Waxing Gibbous; Moon at 12 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- 241 Am Pst Tue Nov 20 2018
.small craft advisory in effect from late tonight through Wednesday afternoon...
Today..SE winds increasing to 5 to 15 kt. Waves S building to 3 ft at 4 seconds...and nw 3 ft at 10 seconds. Haze and patchy smoke.
Tonight..SE winds 10 to 20 kt. Waves S 5 ft at 6 seconds... And nw 3 ft at 13 seconds. Rain.
Wed..SE winds 10 to 20 kt. Waves se 6 ft at 7 seconds...and nw 5 ft at 13 seconds. Showers and slight chance of Thunderstorms.
Wed night..S winds 5 to 15 kt. Waves S 4 ft at 6 seconds... And W 5 ft at 14 seconds.
Thu..S winds 10 to 20 kt. Waves S 6 ft at 7 seconds...and W 9 ft at 12 seconds.
Fri..W winds 5 to 10 kt. Waves W 6 ft at 12 seconds.
Sat..N winds 5 to 10 kt. Waves W 6 ft at 11 seconds.
PZZ400 241 Am Pst Tue Nov 20 2018
Synopsis for northern california waters..Southerly winds increase across the area this afternoon ahead of a cold front which will move across the waters early Wednesday. A second, stronger front will arrive on Thursday, with gales possible for the northern waters. Thunderstorms are possible late on Wednesday. A mid-period W to nw swell will persist through Tuesday, with another swell train arriving Tuesday night.


7 Day Forecast for Marine Location Near Little River, CA
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location: 39.26, -123.75     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 192307
afdeka
area forecast discussion
national weather service eureka ca
307 pm pst Mon nov 19 2018

Synopsis Dry, mild, and hazy conditions will continue through
Tuesday. In addition, breezy south winds will develop by Tuesday
afternoon, followed by significant rains Tuesday night through
Friday.

Discussion A vigorous upper low was in the process of moving
onshore over SRN ca Monday afternoon. Meanwhile, a trough
progressing toward the nern pac was kicking a west coast ridge
eastward. Between the upper low and trough, nwrn ca will continue
to experience pleasant, albeit hazy conditions for another 24
hours. In addition, clear skies tonight will promote frost
development for wind sheltered areas (reference the latest frost
advisory for more details).

A surface frontal wave associated with the previously mentioned
trough over the nern pac is forecast to approach nwrn ca during
Tuesday. South-southeast winds will become gusty ahead of the
front, with near-advisory level speeds developing across exposed
coastal ridges. In addition, southeast winds across the eel river
delta and surrounding coast mountains will promote downslope
warming for the humboldt bay area. This could result in Tuesday
highs climbing into the upper 60s despite increasing cloud cover.

Frontal rains will spread across the region during Tuesday night.

Thereafter, rain will transition to post-frontal showers during
Wednesday afternoon. Steepening lapse rates associated with a cold
midlevel airmass (near -25 c at 500 mb) will develop across the
region late Wednesday afternoon into the evening. This will favor
weak but sufficient CAPE for isolated thunderstorms over the
coastal waters and adjacent inland areas. Heavier showers and
storms could also produce small hail.

After Wednesday, model guidance shows a pronounced zone of
westerly moisture flux impinging upon nwrn ca during Thursday.

Most deterministic solutions shift this zone of moisture flux
south of the region during Thursday night. However, the GFS keeps
this feature over the CWA for 12 to 18 hours, which subsequently
yields an excessive amount of rainfall that may necessitate a
flood advisory for small streams and urban areas. In addition, wsw
925 mb winds in excess of 40 kt combined with a tight southerly
surface pressure gradient will likely result in advisory level
wind speeds for coastal and ridgetop locations.

Going into the weekend... Another frontal wave is forecast to
impact the pac nw. This feature will be embedded within a zone of
midlevel height rises. Thus, only light rain and minimal impacts
are expected as it reaches nwrn ca.

Garner

Aviation Improvement in cig and vsbys today as southeasterlies
gradually ramp up ahead of the first pacific front expected to
arrive to the coast late tomorrow night. Although the southeast
winds are not strong at the surface there is enough wind aloft to
begin to finally scour and mix out the low level smoke haze and
fog that has plagued the areas the past few days. Thus mainlyVFR
conditions are being observed across the region and this should
continue through the next couple of days. There will still be a
chance of fog development tonight early tomorrow as winds decouple
but the persistent haze should diminish.

Marine The subdued wind and sea state continues as a very weak
pressure gradient persists across the region. This all comes to a
crashing halt beginning tomorrow night however as the first of
two fronts reaches the coast. Southerlies ahead of the first front
will ramp up beginning late tomorrow. Strongest winds will occur
over the northern waters for high end SCA but a gale warning is
not anticipated. The second front arriving on Thursday will be
stronger and will likely warrant a gale for the norther outer
waters. The sea state will remain light until the wind swell picks
up from the south winds... While a westerly swell builds into
Thursday reach near 10 ft at 13 seconds late Thursday.

Fire weather A dry airmass, characterized by afternoon rh
values in the 20s, will persist across interior nwrn ca through
much of the day Tuesday. In addition, southerly ridgetop winds
gusting to 30 mph are forecast to develop ahead of a frontal
boundary tonight into Tuesday afternoon. The gusty winds and low
rh values will yield elevated to locally critical fire weather
conditions across exposed ridges during the next 24 hours.

Widespread rain will then develop across the region Tuesday, and
potentially become heavy during Thursday afternoon.

Garner

Eka watches warnings advisories
Ca... Frost advisory from midnight tonight to 9 am pst Tuesday for
caz102-103-109-112.

Flash flood watch from Wednesday afternoon through Friday
morning for caz107-110-113.

Northwest california coastal waters... None.

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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 12 mi50 min SE 3.9 G 3.9 54°F 54°F1014.8 hPa52°F
ANVC1 - 9416841 - Arena Cove, CA 24 mi42 min E 7 G 9.9 56°F 54°F1015.7 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA30 mi64 minN 04.00 miFair with Haze33°F27°F78%1016.3 hPa

Wind History from UKI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3CalmSW3S5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS3NW5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3S3S4S6S3NW3CalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Albion, California
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Albion
Click for Map
Tue -- 02:16 AM PST     1.47 feet Low Tide
Tue -- 04:06 AM PST     Moonset
Tue -- 07:04 AM PST     Sunrise
Tue -- 08:37 AM PST     5.78 feet High Tide
Tue -- 03:14 PM PST     0.39 feet Low Tide
Tue -- 03:52 PM PST     Moonrise
Tue -- 04:56 PM PST     Sunset
Tue -- 09:35 PM PST     4.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.51.81.51.62.23.14.25.15.75.75.24.231.70.80.40.61.22.133.94.44.54.1

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Tue -- 03:20 AM PST     0.00 knots Slack
Tue -- 04:06 AM PST     Moonset
Tue -- 06:16 AM PST     0.91 knots Max Flood
Tue -- 07:04 AM PST     Sunrise
Tue -- 09:17 AM PST     -0.00 knots Slack
Tue -- 12:15 PM PST     -1.24 knots Max Ebb
Tue -- 03:53 PM PST     Moonrise
Tue -- 04:09 PM PST     0.00 knots Slack
Tue -- 04:56 PM PST     Sunset
Tue -- 07:00 PM PST     0.96 knots Max Flood
Tue -- 10:10 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.9-0.7-0.5-0.10.30.70.90.80.60.2-0.4-1-1.2-1.2-0.9-0.6-0.10.40.810.90.60.1-0.4

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 (6,6,7,8)
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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.