Thursday, March23, 2017 L-36.com


Marine Weather and Tides
Little River, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:07AMSunset 7:30PM Thursday March 23, 2017 1:19 AM PDT (08:19 UTC) Moonrise 3:34AMMoonset 2:04PM Illumination 19% Phase: Waning Crescent; Moon at 25 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
    EDIT      (on/off)   Help
PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 845 Pm Pdt Wed Mar 22 2017
.small craft advisory in effect from Thursday afternoon through Friday morning...
Tonight..N winds 5 to 15 kt. Waves nw 4 ft at 4 seconds...and W 9 ft at 11 seconds.
Thu..E winds up to 5 kt...becoming S 10 to 15 kt with gusts to around 30 kt. Waves S 2 ft at 5 seconds...and W 7 ft at 13 seconds. Chance of rain.
Thu night..SE winds 15 to 25 kt with gusts to around 35 kt. Waves S 7 ft at 8 seconds...and W 5 ft at 15 seconds. Rain.
Fri..S winds 10 to 20 kt. Waves sw 10 ft at 11 seconds.
Fri night..S winds up to 5 kt. Waves sw 8 ft at 10 seconds... And W 5 ft at 15 seconds.
Sat..NW winds up to 5 kt. Waves W 8 ft at 15 seconds.
Sun..S winds 10 to 20 kt. Waves S 4 ft at 6 seconds...and W 7 ft at 15 seconds.
Mon..NW winds 5 to 15 kt. Waves W 11 ft at 15 seconds.
PZZ400 845 Pm Pdt Wed Mar 22 2017
Synopsis for northern california waters..An area of high pressure will allow winds and steep seas to settle briefly overnight. A strong weather front will approach the area from the west by tomorrow morning. This will lead to southerly gales and large steep waves for late Thursday afternoon through the overnight hours. Winds and waves will subside on Friday. The westerly swell will diminish during the weekend.

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


Area Discussion for - Eureka, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 keka 222310
afdeka
area forecast discussion
national weather service eureka ca
410 pm pdt Wed mar 22 2017

Synopsis Chilly interior temperatures may result in patchy
frost across interior valleys tonight. Two weather systems will
bring period of heavy rain and gusty winds to the region Thursday
through Friday, and again Sunday through Monday.

Discussion Scattered showers continue to develop across
northwest california as the axis of an upper level trough passes
through the region. As of this afternoon, the most vigorous
activity remains east of the region across the northern sacramento
valley and adjacent foothills of the coast range, due to a
combination of more favorable upper jet dynamics, upslope flow,
and instability. Meanwhile, the remaining showers farther west
have diminished considerably across the waters, and now appear to
be persisting mostly due to moist low-level northwest flow
interacting with local topography, along with weak instability. As
a result, showers are mainly restricted to the hills, with very
limited coverage along the immediate coast. As such, places like
eureka, crescent city, and various locations along the mendocino
coast will likely see pleasant conditions the remainder of the
afternoon and evening, with gradually improving conditions inland
as an upper level ridge brings increasing subsidence and drier air
aloft.

Overnight tonight, the previously mentioned subsidence aloft
should allow skies to clear across much of the area, and with
lighter winds settling in, interior valley temperatures will
likely be quite cool. There is some uncertainty as to just how
cold these temperatures will be, particularly in areas where
valley fog and/or stratus develops overnight. Still, forecast lows
appear to be within range of frost criteria across portions of
interior mendocino county, and while there is some uncertainty
over which particular valleys will actually see frost, we opted to
issue a frost advisory for overnight tonight and tomorrow morning.

Attention then turns to an approaching storm system Thursday and
Friday, which has been much anticipated over the past week. A
potent frontal system will begin to impact the NW ca coast
Thursday afternoon and pass through the area between then and
Friday morning, bringing a period of gusty south winds and heavy
rain. While rain totals will likely not be enough to result in any
major flooding issues, nuisance flooding and additional
rock/mudslides will be possible with this event. In fact, winds
may be the bigger story with this front, as high resolution
models are showing 60 to 65 kt 925-mb level winds moving into
coastal del norte and humboldt counties from late afternoon
through the evening. However, the atmospheric profile is fairly
stable, with evidence of an inversion set up near the low level
jet. The inversion may prevent the strong wind aloft from mixing
down all the way down to the surface. Still, high elevation
locations above 1000 feet should see gusts of 55 to 65 mph. For
exposed coastal locations near crescent city, wind gusts should
get to near 55 mph, which is on the high end of wind advisory. The
winds should subside by early Friday morning. Last but not least,
while snow levels will be high enough to prevent snow from
reaching most passes, this may not be true of northern and eastern
trinity county where snow levels may fall to around 3500 feet
overnight Thursday. This may only impact the lesser traveled scott
mountain pass, but is worth noting.

As the leading stratiform rain ends Friday morning, waves of
showers will continue along the humboldt/del norte coasts through
Saturday morning, and will followed by a brief break as a
transient upper ridge builds aloft. This will be followed quickly
by another passing storm system Sunday and Monday, which will
bring another round of gusty winds and at least moderate rain.

Models have continued to trend stronger with this storm, and this
will be watched for potential wind hazards.

Forecast uncertainty increases considerably Tuesday and beyond,
but northwest flow will allow for passing shortwaves and
alternating periods of light rain and sun.

Aviation Diminishing showers through the day today. Do expect the
shower activities to diminish this evening as we lose the
instability from daytime heating. Will be aVFR night for all three
terminals. There is a threat for low clouds and fog to sneak into
ukiah and arcata airports as there will be a time window where there
will be clear skies, calm winds, and ample low level moisture late
tonight. By tomorrow morning, mid and high clouds from the next
weather system will be moving into the area terminals from the west.

/rcl

Marine Active weather pattern will continue through this
weekend, with fluctuating wind regimes and sea stages.

The forecast period will start off with light to moderate northerly
winds with decaying westerly swell as a transitory high moves over
the area. There are a little bit stronger winds over the southern
waters near point arena. However, the lull in the winds and seas
won't last long. A strong weather front will be moving towards nw
california waters, and this will cause the winds to shift south late
tonight. Winds will increase during the day on Thursday. Do expect
winds to increase to gale force level by late afternoon for the
outer waters. Winds in the inner waters will be in the high end for
small craft advisory. Do expect the strong winds to continue through
the overnight hours. Winds should subside by Friday morning. Winds
will be fairly light on Friday and Saturday. South winds will
increase once again on Sunday with the next weather front.

Wave height forecast remains fairly complex. Through tonight, we
will be seeing the decaying westerly swell. With the increase in the
southerly winds, there will be a short period wave build up tomorrow
afternoon through the overnight hours. Friday and Saturday will be
dominated by the westerly swell. While there will be another wind
wave group generated on Sunday. /rcl

Eka watches/warnings/advisories
Ca... Wind advisory from 5 pm Thursday to 5 am pdt Friday for caz101-
102-104>106.

Northwest california coastal waters... Small craft advisory from noon Thursday to 9 am pdt Friday for
pzz450-455.

Small craft advisory from 9 am to 3 pm pdt Thursday for pzz470-
475.

Gale warning from 3 pm Thursday to 3 am pdt Friday for pzz470-
475.

Visit us at http://

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46014 - PT ARENA - 19NM North of Point Arena, CA 12 mi39 min NNW 16 G 18 53°F 1022 hPa46°F
ANVC1 - 9416841 - Arena Cove, CA 24 mi49 min NNW 1.9 G 5.1 51°F 54°F1022.4 hPa

Wind History for Arena Cove, CA
(wind in knots)    EDIT      (on/off)   Help
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last
24hr
W8
G11
NW7
NW6
G10
W1
G4
N1
G4
N1
G4
NW3
W4
G7
W4
G7
W9
G13
W12
NW10
G14
W12
G17
W10
G17
W8
G17
W8
G12
W7
G10
W5
G8
W3
G9
NW4
G7
NW5
G8
NW4
G8
W2
G6
W2
1 day
ago
E15
G20
E17
G23
E8
G15
SE2
SE1
--
E4
G8
E7
E8
G11
E8
G15
E11
G16
E10
G15
E11
G15
SE7
G21
E8
G14
E11
G17
SE4
G14
SE3
G7
S4
G7
E7
G12
S8
G11
S5
S4
W9
2 days
ago
E9
G14
E13
G17
E10
G15
SE11
G19
E12
G17
E14
G24
E17
G22
E17
G25
E17
G24
E16
G27
E18
G33
E20
G25
E17
G23
E18
G24
E16
G25
E16
G22
E17
G24
E16
G26
E19
G28
E12
G18
E13
G23

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah, Ukiah Municipal Airport, CA30 mi83 minN 010.00 miA Few Clouds45°F41°F86%1020.5 hPa

Wind History from UKI (wind in knots)
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hrCalmCalmNW3N3W3Calm334355Calm----W11
G17
W8
G17
NW8N6NE3N5E3CalmCalm
1 day agoS8SE11
G19
S10S10SE9SW7W4CalmE6S75SE9
G17
S14
G19
S12
G20
S6SE4S5E5CalmSE3S3S5SE3SW3
2 days agoS8SE8S9S6S8S10S4S4SE3SE4SE6SE7SE9
G16
S13
G19
SE10
G19
SE9
G17
S7
G16
S6S6SE12
G18
S8
G15
S9S5SE6

Tide / Current Tables for Albion, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Albion
Click for Map
Thu -- 02:32 AM PDT     2.65 feet Low Tide
Thu -- 04:33 AM PDT     Moonrise
Thu -- 07:13 AM PDT     Sunrise
Thu -- 08:05 AM PDT     5.02 feet High Tide
Thu -- 02:58 PM PDT     0.29 feet Low Tide
Thu -- 03:03 PM PDT     Moonset
Thu -- 07:30 PM PDT     Sunset
Thu -- 09:55 PM PDT     4.58 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.432.72.733.64.24.854.84.23.32.11.20.50.30.51.122.93.84.44.64.3

Tide / Current Tables for Point Cabrillo, California Current
   EDIT      (on/off)   Help   One Week of Data
Point Cabrillo
Click for Map
Thu -- 03:27 AM PDT     0.00 knots Slack
Thu -- 04:34 AM PDT     Moonrise
Thu -- 06:10 AM PDT     0.64 knots Max Flood
Thu -- 07:13 AM PDT     Sunrise
Thu -- 08:57 AM PDT     -0.00 knots Slack
Thu -- 12:02 PM PDT     -1.12 knots Max Ebb
Thu -- 03:03 PM PDT     Moonset
Thu -- 04:03 PM PDT     0.00 knots Slack
Thu -- 07:07 PM PDT     0.95 knots Max Flood
Thu -- 07:30 PM PDT     Sunset
Thu -- 10:14 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.6-0.5-0.4-0.20.20.50.60.60.4-0-0.5-1-1.1-1-0.8-0.5-00.50.810.90.60.1-0.4

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Eureka, CA (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Eureka, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.