Sunday, February17, 2019 L-36.com


Marine Weather and Tides
Big Lagoon, 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 7:06AMSunset 5:54PM Sunday February 17, 2019 7:42 PM PST (03:42 UTC) Moonrise 3:46PMMoonset 5:49AM Illumination 98% Phase: Waxing Gibbous; Moon at 13 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
PZZ450 Pt St George To Cape Mendocino Out 10 Nm- 226 Pm Pst Sun Feb 17 2019
.small craft advisory in effect until 9 pm pst this evening...
Tonight..N winds 10 to 20 kt. Waves nw 4 ft at 6 seconds... And nw 9 ft at 13 seconds.
Mon..N winds 5 to 15 kt...rising to 15 to 20 kt. Waves N 5 ft at 7 seconds...and nw 8 ft at 13 seconds.
Mon night..N winds 10 to 20 kt. Waves N 5 ft at 7 seconds... And nw 6 ft at 12 seconds.
Tue..N winds 5 to 15 kt. Waves N 5 ft at 7 seconds...and nw 5 ft at 12 seconds.
Tue night..N winds 10 to 20 kt. Waves N 5 ft at 7 seconds... And nw 6 ft at 13 seconds.
Wed..NW winds 10 to 20 kt. Waves nw 7 ft at 8 seconds...and nw 10 ft at 13 seconds.
Thu..N winds 10 to 20 kt. Waves nw 5 ft at 9 seconds...and nw 10 ft at 14 seconds.
Fri..N winds 5 to 10 kt. Waves nw 2 ft at 6 seconds...and nw 6 ft at 13 seconds.
PZZ400 226 Pm Pst Sun Feb 17 2019
Synopsis for northern california waters..Northwest to northerly winds will slightly ease late tonight before ramping back up tomorrow. A large nw swell and steeper waves will continue to gradually lower today. Moderate northerly winds and short period seas are expected to increase Monday and persist through the end of the week.


7 Day Forecast for Marine Location Near Big Lagoon, CA
   Hourly   EDIT   Help
location: 41.17, -124.32     debug


Area Discussion for - Eureka, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 keka 172313
afdeka
area forecast discussion
national weather service eureka ca
313 pm pst Sun feb 17 2019

Synopsis Cold overnight low temperatures are expected the next
two nights, with a widespread freeze expected even in many
coastal areas. Dry conditions will prevail through Tuesday, with
another round of light rain and mountain snow expected Wednesday.

Discussion While the more significant shower activity emanating
from the ocean has diminished and also been pushed offshore by a
shift to a more northerly flow regime, some modest instability has
developed across interior areas this afternoon and is now driving
some weak land-based showers across del norte, humboldt, and
trinity counties. Precipitation rates are very low with these
showers, and while much of it is falling as snow, accumulations
with these showers are expected to be very light if any
accumulates at all. These showers are also expected to diminish
quickly with the setting Sun and the arrival of a drier airmass,
and this should end precipitation across the region through at
least Tuesday.

Meanwhile, overnight low temperatures across interior areas are
expected to be quite cold and even coastal areas may see a
widespread freeze, particularly in humboldt county. Within the
coastal humboldt zone... Which is generally defined as coastal
areas below 1000 feet... The most vulnerable areas for a hard
freeze are likely to be in protected valleys and depressions that
are slightly away from the coast. Communities like blue lake,
fieldbrook, carlotta, and even some of the outer areas of
mckinleyville and arcata are most likely to be impacted. As such,
a hard freeze warning has been issued specifically for these areas
overnight tonight. In other areas like eureka and crescent city,
temperatures may still reach near or slightly below freezing but
may not drop low enough to qualify as a hard freeze. Also, it
should be noted that areas farther inland will likely be much
colder, but freeze products are not issued for these zones outside
of the agricultural growing season. After a cool and dry day
Monday, cold overnight lows are expected again Monday night,
albeit perhaps a degree or two warmer. In addition to the cold
overnight lows, some patchy freezing fog can also be expected in
some interior valleys overnight the next two nights.

On Wednesday, a somewhat weak low pressure system will arrive from
the north, bringing with it another round of generally light
showers and mountain snow. Once again snow levels are likely to be
low enough to bring light accumulations to highway pass levels
Wednesday, although with the expected light precipitation rates it
is not likely that this snow will cause significant impacts. Most
precipitation will likely fall within a relatively brief 12 hour
window Wednesday before northerly flow again directs showers
parallel to the coast and not inland overnight. Mostly dry and
cool conditions will prevail Thursday and likely Friday, but
confidence is increasing that wet and active weather will return
later in the weekend. Brc

Aviation Shower activity continues to decrease this afternoon
with only a few spotty showers around. Winds will drop off tonight
and temperatures will rapidly cool with most locations seeing near
to below freezing temperatures. With the heavy rain the past few
days, early morning fog will develop across mainly the interior
however a few patches along the coast cannot be ruled out. With the
below freezing temperatures, any fog that does form will allow a
thin layer of ice to develop on most surfaces. By late morning any
fog that does develop will burn off leading toVFR conditions for
the rest of the day. Wci

Marine Northwest swell continues its slow decay today allowing
seas to steadily decline. Northerly winds on the other hand are
expected to briefly increase this afternoon into the evening which
will keep small craft advisory conditions across all of the
waters through tonight. Northerly winds will stay gusty for most
of this week across the outer waters and periodically affect the
inner waters especially south of CAPE mendocino. These strong
northerly winds generally around 20-30 kts will also allow short
period northerly seas to increase to around 5-8 feet at 7 seconds.

Another moderate period swell will impact the waters Wednesday
through the end of the week, otherwise short period seas should
dominate the sea state. All combined, it seems likely that small
craft advisory conditions will continue across the outer waters
for most of the week and for the inner waters for a good portion
of the week ahead. Wci

Eka watches warnings advisories
Ca... Hard freeze warning from midnight tonight to 9 am pst Monday for
caz103.

Northwest california coastal waters... Small craft advisory until 9 pm pst this evening for pzz450-455.

Small craft advisory until 4 pm pst Tuesday 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
46244 - Humboldt Bay, North Spit, CA 19 mi42 min 52°F12 ft
HBYC1 - 9418767 - North Spit, CA 28 mi66 min N 17 G 24 46°F 50°F1021.7 hPa
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 34 mi32 min N 19 G 23 53°F1022.7 hPa
CECC1 - 9419750 - Crescent City, CA 40 mi48 min NE 2.9 G 4.1 42°F 51°F1022.6 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 47 mi42 min N 21 G 27 47°F 51°F1023.2 hPa (+1.9)46°F

Wind History for North Spit, Humboldt Bay, CA
(wind in knots)    EDIT      (on/off)   Help
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
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
Last
24hr
S10
SE3
G7
SE7
G10
E7
SE7
G10
S2
E5
E7
SE2
NW5
SE4
S5
S6
E4
G8
SE5
SW6
SW4
NW4
N4
NW8
N13
N14
N17
G21
N19
1 day
ago
S19
G23
S13
G17
S15
G19
S14
G18
S12
G17
W23
W16
W8
G13
NW4
G10
W18
W22
G29
NW21
G28
NW25
NW23
G28
W17
G21
NW23
N12
G16
NE7
E4
S3
NE7
G11
SE3
SW1
S3
2 days
ago
SW24
G34
SW19
G26
W27
SW22
G32
SW25
G36
S16
G29
SW25
G33
SW23
G29
SW19
G25
SW20
S18
G24
S7
G15
S18
S19
S17
G21
SE7
G15
S18
S17
G21
S16
G24
S21
SE16
G20
S20
G25
SW21
S16
G20

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Arcata / Eureka, Arcata Airport, CA17 mi49 minN 010.00 miA Few Clouds39°F35°F86%1022.6 hPa

Wind History from ACV (wind in knots)
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
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
Last 24hrE4S7S35NE7E3E4NE3CalmE3E3CalmSE5SE4CalmSW3W5NW6NW9NW13N12N12N4Calm
1 day agoE4S10S6CalmCalmW7
G17
W17
G22
S6NW8NW14
G23
NW17
G25
NW17
G22
NW16NW10
G24
6N75W6N9CalmW7CalmSE3S7
2 days agoSW14S9SW10S10S11S7SW18
G24
S10
G19
S8SE12S9S9SE13
G18
W4SE10SE12SE11
G18
SE11SE14S15
G21
SE13
G22
SE11SE15SE10

Tide / Current Tables for Trinidad Harbor, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Trinidad Harbor
Click for Map
Sun -- 03:05 AM PST     3.06 feet Low Tide
Sun -- 05:47 AM PST     Moonset
Sun -- 07:08 AM PST     Sunrise
Sun -- 09:07 AM PST     7.68 feet High Tide
Sun -- 03:45 PM PST     Moonrise
Sun -- 04:14 PM PST     -1.10 feet Low Tide
Sun -- 05:53 PM PST     Sunset
Sun -- 10:52 PM PST     6.02 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
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
4.843.43.13.345.16.37.37.77.46.34.72.80.9-0.4-1.1-0.90.11.73.34.85.86

Tide / Current Tables for Arcata Wharf, Humboldt Bay, California
   EDIT      (on/off)   Help   One Week of Data
Arcata Wharf
Click for Map
Sun -- 04:11 AM PST     3.03 feet Low Tide
Sun -- 05:46 AM PST     Moonset
Sun -- 07:08 AM PST     Sunrise
Sun -- 10:10 AM PST     7.94 feet High Tide
Sun -- 03:46 PM PST     Moonrise
Sun -- 05:25 PM PST     -1.25 feet Low Tide
Sun -- 05:53 PM PST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
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
5.54.94.13.433.245.26.57.57.97.76.75.13.21.2-0.4-1.2-1.1-0.21.334.55.6

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Eureka, CA (22,6,7,8)
      (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.