Tuesday, July23, 2019 L-36.com


Marine Weather and Tides
Fields Landing, CA

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Sunrise 6:03AMSunset 8:42PM Tuesday July 23, 2019 7:01 AM PDT (14:01 UTC) Moonrise 11:29PMMoonset 11:27AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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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PZZ410 227 pm pst Fri feb 15 2019 a marine weather statement has been issued for the following areas... Waters from pt. St. George to cape mendocino ca out 60 nm... Humboldt bay bar... At 222 pm pst, doppler radar indicated lines of showers and isolated Thunderstorms over the waters north of cape mendocino, capable of producing winds to around 30 knots and small hail. This activity was moving east-northeast at 30 knots. Precautionary/preparedness actions... Water spouts are possible along with stronger Thunderstorms... Locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4174 12417 4154 12405 4153 12405 4154 12408 4124 12410 4114 12416 4089 12413 4084 12418 4086 12410 4082 12410 4065 12431 4060 12418 4062 12424 4063 12432 4045 12440 4047 12579 4129 12555 4168 12568 4178 12579
PZZ400 230 Am Pdt Tue Jul 23 2019
Synopsis for northern california waters..Northerly winds will begin to increase today as the surface pressure gradient tightens. Strong breezes will persist across the outer waters from mid week through at least the weekend. Seas will also begin to steepen in response to the winds, leading to very steep hazardous seas from late Wednesday through at least the end of the week.


7 Day Forecast for Marine Location Near Fields Landing, CA
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location: 40.77, -124.25     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 231049
afdeka
area forecast discussion
national weather service eureka ca
349 am pdt Tue jul 23 2019

Synopsis Warm and dry conditions will continue during the
foreseeable future across the interior. Meanwhile, coastal areas
will experience overnight and morning marine clouds through at
least the first half of the work week.

Discussion High pressure is in place over the great basin and
an upper level trough lingers off the pacific northwest coast. As
this trough approaches the marine clouds may be slow to clear
this afternoon. The approaching trough may also bring some drizzle
to the coastal areas. A stable layer centered around 600 to 500 mb
is expected to prevent any thunderstorms from forming, although
some low topped CU is possible again.

Tonight this trough finally ejects to the northeast. Once the
trough axis passes in the evening the northerly winds at the
coast will increase. This will set up offshore flow tonight and
Wednesday at the coast and coastal clouds are expected only
around humboldt bay and the southern mendocino coast. It is
possible that there will be mostly clear skies, but confidence is
not high enough to put that in the forecast. This may warm
temperatures slightly at the coast, but the increasing northerly
winds will likely keep them in the 60s. The passage of this
trough axis inland will increase temperatures around 5 degrees
and lower rh by 5 to 10 percent. This will increase fire danger
some, but winds in the inland areas will remain fairly light.

Thursday temperatures and rh will remain fairly similar to
Wednesday. The offshore flow weakens so there may be some more
coastal clouds around. The northerly wind will cool off the ocean
waters and may help the stratus form. Due to the high pressure
overhead the marine layer will likely be fairly thin with fog and
stratus limited to the immediate coast.

Friday the ridge flattens slightly as another trough moves into
the pac nw. This may cool temperatures by a degree or so and allow
a bit more stratus to form along the coast. Over the weekend the
flow remains nearly zonal and heights increase slightly. It looks
like more areas will see temperatures climb to near or slightly
over 100 degrees. The coast will likely see a fairly thin marine
layer. Early next week the models are indicating the another
trough moving through the area. This is expected to bring
slightly cooler temperatures. Mkk

Aviation Lifr ceilings and reduced visibilities are being
reported along the coast early this morning. Expect these lifr
ceilings and lower visibilities to persist through the morning
before gradually scattering out late this morning and into the
afternoon. Latest model guidance is a bit pessimistic in regards
to clearing at coastal sites today however with a weaker inversion
(albeit deeper moist layer) wouldn't expect ovc ceilings to stick
around for the entire day. Therefore, will maintain afternoon
clearing at both acv and cec at this point. Interior locations
including uki will remainVFR through this TAF cycle. Tonight, an
upper level system will pass by helping to disrupt the marine
inversion especially at cec therefore coastal stratus may not
readily develop along the del norte coast as weak offshore
develops in the systems wake. Along the humboldt coastline would
expect ifr ceilings to return to acv tonight and persist through
tomorrow morning. Wci

Marine Marine forecast still on track this morning as the
surface pressure gradient will begin to tighten today. Expect
northerly winds to begin to increase in response especially across
the outer waters and near CAPE mendocino this afternoon. Have
issued a new small craft advisory for the northern outer waters
from late tonight through Wednesday afternoon. Wednesday afternoon
winds across the northern outer waters will approach gale force
therefore have issued a gale watch from Wednesday afternoon
through Thursday morning to account for the period of expected
strongest winds. Strongest winds will remain across the outer
waters however locations around CAPE mendocino and point saint
george may also experience near gale force gusts. Seas will also
begin to build in response to the stronger northerlies Wednesday
morning. Expect very steep and hazardous seas to persist across
the outer waters, near CAPE mendocino, and point saint george
through the weekend and into early next week. Winds and seas may
decrease a bit on Saturday however they are expected to re-
intensify Sunday and remain elevated through early next week. Wci

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters...

gale watch from Wednesday afternoon through Thursday morning
for pzz470.

Small craft advisory from 9 pm this evening to 3 pm pdt
Wednesday for pzz470.

Small craft advisory until 3 am pdt Friday for pzz475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 2 mi86 min 54°F1018.4 hPa
46244 - Humboldt Bay, North Spit, CA 10 mi32 min 55°F3 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 15 mi22 min N 5.8 G 5.8 54°F1019 hPa
46213 - Cape Mendocino, CA (094) 42 mi32 min 51°F3 ft

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fortuna Rohnerville Airport, CA16 mi72 minW 50.25 miOvercast55°F55°F100%1018.6 hPa
Arcata / Eureka, Arcata Airport, CA17 mi69 minSE 37.00 miOvercast56°F55°F97%1018.5 hPa

Wind History from FOT (wind in knots)
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W9W7W4CalmCalmN4N3CalmCalmCalmW4
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2 days agoCalmCalmCalmNW3NW8NW11W11W14W15
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NW10NW9N7NW6NW7NW8NW4NW5NW3CalmNW5NW3NW5

Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
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Tue -- 12:03 AM PDT     Moonrise
Tue -- 04:08 AM PDT     4.57 feet High Tide
Tue -- 06:05 AM PDT     Sunrise
Tue -- 10:56 AM PDT     1.15 feet Low Tide
Tue -- 12:27 PM PDT     Moonset
Tue -- 05:27 PM PDT     5.32 feet High Tide
Tue -- 08:41 PM PDT     Sunset
Tue -- 11:56 PM PDT     2.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.93.43.94.44.64.543.42.61.91.31.11.42.23.14.14.95.35.34.94.43.732.6

Tide / Current Tables for Hookton Slough, Humboldt Bay, California
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Hookton Slough
Click for Map
Tue -- 12:03 AM PDT     Moonrise
Tue -- 04:32 AM PDT     5.07 feet High Tide
Tue -- 06:05 AM PDT     Sunrise
Tue -- 11:14 AM PDT     1.15 feet Low Tide
Tue -- 12:26 PM PDT     Moonset
Tue -- 05:51 PM PDT     5.82 feet High Tide
Tue -- 08:40 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.83.344.6554.743.22.21.51.21.3234.15.15.75.85.654.23.42.7

Weather Map and Satellite Images
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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 (10,2,3,4)
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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.