Saturday, February23, 2019 L-36.com


Marine Weather and Tides
Trinidad, 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 6:57AMSunset 6:01PM Saturday February 23, 2019 4:44 PM PST (00:44 UTC) Moonrise 11:08PMMoonset 9:41AM Illumination 79% Phase: Waning Gibbous; Moon at 19 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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PZZ450 Pt St George To Cape Mendocino Out 10 Nm- 241 Pm Pst Sat Feb 23 2019
.small craft advisory in effect from 10 pm pst this evening through Sunday evening...
.gale warning in effect from Sunday evening through Monday morning...
Tonight..S winds 10 to 20 kt. Waves sw 5 ft at 6 seconds... And nw 7 ft at 14 seconds. Rain.
Sun..S winds 20 to 25 kt. Waves sw 7 ft at 7 seconds...and nw 6 ft at 12 seconds. Rain.
Sun night..S winds 20 to 25 kt with gusts to 35 kt. Waves sw 9 ft at 9 seconds... And nw 5 ft at 11 seconds. Rain.
Mon..S winds 20 to 25 kt. Waves sw 10 ft at 9 seconds.
Mon night..S winds 10 to 15 kt. Waves sw 7 ft at 8 seconds... And nw 2 ft at 9 seconds.
Tue..SE winds 10 to 20 kt. Waves S 5 ft at 10 seconds.
Wed..S winds 5 to 10 kt. Waves sw 3 ft at 7 seconds...and W 5 ft at 13 seconds.
Thu..S winds 5 kt. Waves W 8 ft at 14 seconds.
PZZ400 241 Pm Pst Sat Feb 23 2019
Synopsis for northern california waters..SEas will continue to diminish afternoon as southerly winds slowly increase throughout tonight. Southerly winds will peak Sun night and very early Mon as a cold front moves across the waters.


7 Day Forecast for Marine Location Near Trinidad city, CA
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location: 41.06, -124.14     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 232255
afdeka
area forecast discussion
national weather service eureka ca
255 pm pst Sat feb 23 2019

Synopsis Rain will continue to increase in coverage and
intensity through Sunday. Moderate to locally heavy rain will be
possible across northwest california Sunday and Monday. Unsettled
weather will continue into next week.

Discussion An upper trough over british columbia will amplify
toward the sw-w over the weekend, leading to increasing zonal
flow. Deep layer moisture from the central and eastern pacific
will become more focused into the or and N ca region along a
quasi-stationary front, with rains increasing in intensity and
coverage by Sunday as low pressure develops along the front and
moves to the or ca border.

A flood watch for areal flooding for the N portion of the areahas
been extended and now runs through midday Tuesday. Rains are
gradually expected to decrease in intensity over the watch area as
the moisture focus shifts S on Tuesday. However, there remains
disagreement in the models, with the ECMWF keeping the atmospheric
river centered over CAPE mendocino. This watch may ultimately
need to be expanded southward and further in time as the event
plays out due to the potential shift southward of the heaviest
rains. Widespread rains of 3 to 5 inches are expected across the
area (4 to 6 inches in the flood watch area). Localized amounts
over 10 inches are possible across the SW oriented terrain of
interior del norte county, as well as over the king range of sw
humboldt county. Urban and small stream flooding is possible,
along with significant rises of main stem rivers. See the
hydrology section below for more information.

In addition, southerly winds will potentially gust from 40 to 60
mph across exposed ridges and coastal areas late Sunday night
into Monday. A wind advisory may need to be issued by later
shifts.

Snow levels on will continue to rise to 3500-4500 feet during
Sunday with even higher levels on Monday. Snow levels will be
lowest over the trinity horn throughout the weekend, and it is
there that heavy high elevation snow will be most probable, with
some impact to travel possible at scott mountain summit. Highest
peaks may see 4 to 5 feet of snow before all is said and done.

Snow levels are forecast to drop Monday night and Tuesday before
rising again Tuesday night.

Otherwise, a wet and active pattern will continue through most of
next week. More showery precipitation is expected on Wednesday.

Forecast models are in general agreement that a brief break in the
rains may occur on Thursday before rains return by Friday night.

Sec

Aviation South winds, light rain and MVFR to ifr ceilings will
persist through tonight along the del norte and humboldt coast while
farther inland ceilings slowly descend with light rain tonight.

Visibilities and ceilings will fall intermittently to ifr within the
passing showers while a low level coastal jet sets up later tonight,
supporting modest wind shear across coastal terminals. Tdj

Marine South winds are expected to strengthen tonight as a front
approaches from the north west. Small craft advisory conditions will
develop by late tonight across the outer and northern inner waters,
with winds continuing to accelerate through tomorrow evening,
eventually reaching gale force by tomorrow night. These winds will
induce short period seas peaking late Sunday night and Monday
morning around 11 to 14 ft, largest in the northern outer waters.

Tdj

Hydrology Widespread 3 to 5 inches of rain (4 to 6 inches in
the current flood watch area) are expected through midday Tuesday,
with localized rainfall totals over 10 inches possible over sw
facing ridge and mountain slopes of interior del norte county as
well as the king range of SW humboldt county. The heaviest
rainfall rates will likely occur Sunday and Sunday night. This
rain event will cause main stem rivers to experience significant
rises. The eel river at fernbridge and the navarro river at
navarro are presently forecast to rise above flood stage by
Tuesday afternoon. Flood watches for these points will likely be
issued by Sunday morning. The russian river at hopland, the mad
river at arcata, and the van duzen river at bridgeville, and the
klamath river at klamath are forecast to rise to monitor stage
Tuesday afternoon or Tuesday night. Sec

Eka watches warnings advisories
Ca... Flood watch from late tonight through late Monday night
for caz101>103-105.

Northwest california coastal waters...

small craft advisory from 10 pm this evening to 9 pm Sunday
for pzz450-470.

Gale warning from 9 pm Sunday to 10 am Monday for pzz450-470.

Small craft advisory from 4 pm Sunday to 4 pm Monday
for pzz455.

Small craft advisory from 1 pm Sunday to 1 am Monday
for pzz475.

Gale warning from 1 am to 10 am Monday for pzz475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46244 - Humboldt Bay, North Spit, CA 16 mi45 min 52°F6 ft
HBYC1 - 9418767 - North Spit, CA 21 mi69 min S 8.9 G 9.9 47°F 51°F1024.8 hPa
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 32 mi35 min S 18 G 19 52°F1024.8 hPa
CECC1 - 9419750 - Crescent City, CA 47 mi45 min SSE 13 G 17 47°F 51°F1023.8 hPa (-0.9)

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Arcata / Eureka, Arcata Airport, CA5 mi52 minSSE 68.00 miLight Rain48°F46°F93%1025.2 hPa

Wind History from ACV (wind in knots)
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Last 24hrN9N6NE4E5E5E6E4E6E5SE7CalmSE4SE53SE7SE3SE7SE5SE7SE6SE3SE3S6SE6
1 day agoN10N9N6N7N4NE4N6CalmE3E6E4CalmE3CalmE6E3SE3SE4NW8NW10NW10NW12NW10NW13
2 days agoN4NW3E3E3E3CalmE3CalmNE54N5N8N5NE4NE4E3NE3N5NW13NW11NW16N15NW17
G23
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Tide / Current Tables for Trinidad Harbor, California
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Trinidad Harbor
Click for Map
Sat -- 02:14 AM PST     7.17 feet High Tide
Sat -- 07:00 AM PST     Sunrise
Sat -- 08:29 AM PST     0.91 feet Low Tide
Sat -- 09:40 AM PST     Moonset
Sat -- 02:30 PM PST     6.22 feet High Tide
Sat -- 06:00 PM PST     Sunset
Sat -- 08:33 PM PST     0.92 feet Low Tide
Sat -- 11:08 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.36.67.26.964.631.7111.72.94.35.56.16.15.54.32.91.8111.72.9

Tide / Current Tables for Mad River Slough, Arcata Bay, Humboldt Bay, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Eureka, CA (19,4,5,8)
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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.