Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Trinidad, CA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:32AMSunset 8:05PM Friday August 23, 2019 9:14 PM PDT (04:14 UTC) Moonrise 11:31PMMoonset 1:21PM Illumination 39% Phase: Third Quarter Moon; Moon at 23 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- 838 Pm Pdt Fri Aug 23 2019
.small craft advisory in effect through Saturday morning...
Tonight..W winds 5 to 10 kt. Waves nw 7 ft at 8 seconds...and W 2 ft at 12 seconds. Patchy fog.
Sat..NW winds 5 to 10 kt. Waves nw 6 ft at 7 seconds...and W 3 ft at 13 seconds.
Sat night..NW winds 5 kt. Waves N 5 ft at 9 seconds...and sw 2 ft at 15 seconds.
Sun..NW winds 5 to 10 kt. Waves nw 5 ft at 9 seconds.
Sun night..N winds 5 to 10 kt. Waves nw 7 ft at 8 seconds.
Mon..N winds 5 to 10 kt. Waves nw 6 ft at 9 seconds.
Tue..SW winds 5 kt. Waves nw 6 ft at 9 seconds.
Wed..S winds 5 kt. Waves N 3 ft at 8 seconds.
PZZ400 838 Pm Pdt Fri Aug 23 2019
Synopsis for northern california waters..Steep short period northerly waves will create hazardous ocean conditions for small craft through the weekend across the outer waters. Closer to shore, winds will generally be lighter except for southerly breezes, especially south of cape mendocino.


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


Area Discussion for - Eureka, CA
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Fxus66 keka 232254
afdeka
area forecast discussion
national weather service eureka ca
354 pm pdt Fri aug 23 2019

Synopsis A gradual warming trend is expected today through the
middle of next week, with triple digit heat expected across many
interior valley areas expected by Monday. Coastal areas are also
expected to see above normal temperatures, again especially early
next week. Little to no precipitation is expected.

Discussion Marine clouds have completely disappeared along the
humboldt and del norte county coasts this afternoon, however some
clouds are remaining around the mendocino coast. Southerly winds
will increase along the coast as the evening wears on which will
allow a southerly surge of stratus up the coast to at least cape
mendocino. If that stratus doesn't round the CAPE an expanding
area of stratus well off the coast should make it into the
northern half of the area by early tomorrow morning. With
southerly winds and a sufficiently deep marine layer some low
clouds and patchy fog may also make it up the russian river valley
early tomorrow morning.

As high pressure continues to build across the state,
temperatures will gradually warm across the interior. Hottest
period is expected to be Monday and Tuesday with valley temps
peaking around 100-105 degrees. However, dry air and mostly clear
skies will allow temperatures to cool nicely each evening. Even coastal
locations will see slightly above normal temperatures early next
week around the upper 60's to low 70's.

By mid to late next week, a weak upper level impulse is expected
to move through the region from the southwest. This wave will
likely drive lower surface pressure and light southerly winds
across the waters. Meanwhile, while atmospheric moisture content
appears to be meager, a small potential for isolated and mostly
dry thunderstorms will continue to be monitored toward the middle
of the week. Wci brc

Aviation Skies have remained clear this afternoon,
with south to westerly winds of 5 to 10 kt this afternoon along the
coast and light winds inland. Southerly winds along the coast are
currently bringing some stratus northward which should extend to at
least CAPE mendocino by tonight, possibly continuing north early
Saturday morning. This southerly surge will need to be monitored as
it gets closer. Mkk tdj

Marine Northerly winds and seas have begun to slowly diminish
across the waters this afternoon however steep hazardous seas
will persist through this evening. Closer to the coast tonight,
as northerlies decrease, some light southerly winds will develop
however the steep northerly seas will persist into Saturday
morning. In addition, a west to northwest swell around 3 to 4
feet at 12 seconds will continue to propagate through the waters
through early next week.

Late Sunday into Monday winds across at least the northern outer
waters will begin to ramp up yet again as the pressure gradient
tightens however a bit farther offshore than this week. This will
lead to very steep northerly seas yet again which will eventually
spread into the other marine zones. By mid week, an upper level
trough will approach the area leading to lighter winds and calmer
seas. Wci

Fire weather A gradual warming trend is expected to unfold
throughout the region between today and Wednesday, with the peak
of the heat expected between Monday and Wednesday. Inland
afternoon high temperatures are likely to climb from the mid to
upper 90s late in the week and over the weekend, to between 100
and 105 degrees Monday through Wednesday. In addition to the
increasing heat, humidity will also decrease, with low afternoon
minimums expected and moderate to poor recoveries. Winds are not
expected to be particularly strong on a large scale, and will be
driven by typical daytime onshore and nighttime offshore
fluctuations. Winds may become locally gusty on a smaller scale,
most likely in areas where the terrain favors stronger upslope and
upvalley wind development.

Meanwhile, little to no precipitation is expected for the
foreseeable future. However, while it remains unlikely in
northwest california, a very low chance for isolated dry
thunderstorms near the middle of next week is being monitored.

Brc

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory until 9 am pdt Saturday for pzz450-455.

Hazardous seas warning until 10 pm pdt this evening for pzz470-
475.

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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 55°F6 ft
HBYC1 - 9418767 - North Spit, CA 21 mi99 min 54°F1011.8 hPa
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 32 mi45 min N 3.9 G 5.8 55°F1012.4 hPa
CECC1 - 9419750 - Crescent City, CA 47 mi81 min S 14 G 17 57°F 55°F1010 hPa

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 mi2.4 hrsN 07.00 miFair59°F53°F81%1011.6 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)
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Last 24hr----S6------E4SE3CalmCalm--CalmCalmCalmW5CalmNW6NW6NW8NW6NW7NW8NW7Calm
1 day ago--CalmNW4--N3N9--NW9N3S4S5S3S4SW3W5CalmNW6W7NW9NW11
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2 days ago--Calm------Calm--E4E4Calm----CalmCalmSW4Calm3--N33NW7NW8CalmNW3

Tide / Current Tables for Trinidad Harbor, California
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Trinidad Harbor
Click for Map
Sat -- 12:31 AM PDT     Moonrise
Sat -- 12:57 AM PDT     1.22 feet Low Tide
Sat -- 06:35 AM PDT     Sunrise
Sat -- 07:28 AM PDT     4.33 feet High Tide
Sat -- 12:12 PM PDT     3.13 feet Low Tide
Sat -- 03:25 PM PDT     Moonset
Sat -- 06:38 PM PDT     6.18 feet High Tide
Sat -- 08:01 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.21.422.73.444.34.343.73.33.13.23.64.255.76.16.25.853.92.8

Tide / Current Tables for Arcata Wharf, Humboldt Bay, California
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Arcata Wharf
Click for Map
Sat -- 12:31 AM PDT     Moonrise
Sat -- 02:06 AM PDT     1.16 feet Low Tide
Sat -- 06:35 AM PDT     Sunrise
Sat -- 08:35 AM PDT     4.50 feet High Tide
Sat -- 01:23 PM PDT     3.14 feet Low Tide
Sat -- 03:24 PM PDT     Moonset
Sat -- 07:39 PM PDT     6.67 feet High Tide
Sat -- 08:01 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.21.51.21.422.83.54.14.54.54.33.93.43.23.23.74.45.36.16.66.66.35.54.4

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Eureka, CA (0,6,7,8)
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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.