Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
Caspar, 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 6:29AMSunset 8:03PM Tuesday August 20, 2019 10:00 PM PDT (05:00 UTC) Moonrise 9:57PMMoonset 10:14AM Illumination 70% Phase: Waning Gibbous; Moon at 20 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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PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 906 Pm Pdt Tue Aug 20 2019
Tonight..N winds 5 to 10 kt. Waves nw 3 ft at 7 seconds...and W 2 ft at 14 seconds.
Wed..NW winds 5 to 10 kt. Waves W 6 ft at 10 seconds.
Wed night..NW winds 5 to 15 kt. Waves W 7 ft at 8 seconds.
Thu..NW winds 10 to 20 kt. Waves nw 8 ft at 7 seconds.
Thu night..N winds 10 to 20 kt. Waves nw 8 ft at 8 seconds... And nw 3 ft at 15 seconds.
Fri..N winds 5 to 15 kt. Waves nw 7 ft at 8 seconds...and W 2 ft at 15 seconds.
Sat..N winds 5 to 15 kt. Waves N 5 ft at 7 seconds...and W 4 ft at 13 seconds.
Sun..NW winds 5 to 15 kt. Waves N 4 ft at 6 seconds...and nw 3 ft at 12 seconds.
PZZ400 906 Pm Pdt Tue Aug 20 2019
Synopsis for northern california waters..Relatively light winds and seas will persist through Wednesday night. Northerlies will develop on Thursday and increase through late week as short period seas build in response.


7 Day Forecast for Marine Location Near Caspar, CA
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location: 39.35, -123.83     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 202148
afdeka
area forecast discussion
national weather service eureka ca
248 pm pdt Tue aug 20 2019

Synopsis Seasonable temperatures will persist through Wednesday.

In addition, there is a chance for light rain Wednesday afternoon
and evening over del norte county. Warmer temperatures are
expected across the interior for the end of the week.

Discussion Coastal stratus has mostly dissipated as of early
this afternoon, revealing mostly sunny skies across NW california.

A few mid high level clouds are beginning to spread into the
region ahead of an upper trough which is poised to move inland
over the pacific northwest on Wednesday. Forecast thinking
regarding this feature is largely unchanged from the past few
days as a weak front approaches the far northern portion of the
area and brings a chance for light rain to del norte and possibly
northern humboldt county. This will be supported by impressive
mid august precipitable water values around 1.75 inches, which
combined with the synoptic forcing could be enough to generate a
few hundredths of an inch of precipitation near the oregon border
and perhaps a few sprinkles as far south as the humboldt bay
region.

The trough will quickly depart Wednesday night, leaving the area
beneath quasi-zonal flow on the northern periphery of a
subtropical pacific ridge during the end of the week. Expect
interior temperatures to gradually trend upward during this time
as heights slowly rise and 850 mb temps increase from the mid to
upper teens into the low 20s c. No additional precipitation is
expected from Thursday into early next week. Cb

Aviation The near complete erosion of coastal stratus has
allowedVFR conditions to prevail across the area this afternoon,
with this trend expected to continue well into the evening. The
primary forecast challenge will be timing the return of the
stratus to coastal terminals tonight. Thinking this could be
delayed a bit longer than in recent days given the extent to which
low clouds have cleared over the coastal waters today, but the
marine layer is still sufficiently deep that stratus should reform
at some point, possibly after 06z. Low clouds and patchy fog are
then expected to bring ifr lifr conditions to acv and cec through
Wednesday morning, with some improvement expected around 15z. Uki
and other inland airfields should remainVFR for the duration of
the TAF period. Cb

Marine Relatively tranquil marine conditions will persist for
the next 24 hrs or so as a relaxed pressure gradient supports
mainly light winds and low seas across the coastal waters.

Developing moderate to fresh southerly breezes may clip the far
northern outer waters later tonight ahead of the system moving
through on Wednesday, but these conditions are mostly expected to
remain north of the area. A mid period swell around 7 feet at 12
seconds will enter the waters later on Wednesday, resulting in a
more elevated sea state than has been observed in recent days.

Strong northerlies will then quickly return Wednesday night behind
the departing system, with short period seas rapidly building in
response through Thursday. This will likely necessitate the next
round of headlines by Thursday morning. The northerly wind regime
then looks to persist into at least the early part of next week.

Cb

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46014 - PT ARENA - 19NM North of Point Arena, CA 11 mi30 min N 5.8 G 5.8 57°F 56°F1016.8 hPa
ANVC1 - 9416841 - Arena Cove, CA 31 mi60 min NW 1.9 G 5.1 61°F 54°F1016.9 hPa (-0.3)

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA36 mi3.1 hrsNNE 910.00 miFair76°F46°F36%1014.5 hPa

Link to 5 minute data for KUKI

Wind History from UKI (wind in knots)
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Last 24hrCalmCalmCalmNE3CalmCalmCalmCalmCalmCalmSE3CalmCalmCalm34E5N74--N6N9N8N6
1 day agoCalmCalmS5S6S4S4S6CalmS4S3SE4SE4CalmCalmSE4SE7SE10SE10S8
G17
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2 days agoS4S8S5S4S6S5S7S64S4S6S6S566SE6SE8
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Tide / Current Tables for Mendocino, Mendocino Bay, California
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Mendocino
Click for Map
Wed -- 03:09 AM PDT     4.28 feet High Tide
Wed -- 06:33 AM PDT     Sunrise
Wed -- 09:13 AM PDT     1.72 feet Low Tide
Wed -- 12:13 PM PDT     Moonset
Wed -- 03:41 PM PDT     5.24 feet High Tide
Wed -- 08:02 PM PDT     Sunset
Wed -- 10:17 PM PDT     1.74 feet Low Tide
Wed -- 11:25 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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33.644.34.23.83.12.521.71.82.33.13.94.65.15.24.94.23.42.621.81.8

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Wed -- 01:08 AM PDT     0.67 knots Max Flood
Wed -- 04:09 AM PDT     -0.00 knots Slack
Wed -- 06:33 AM PDT     Sunrise
Wed -- 07:01 AM PDT     -0.83 knots Max Ebb
Wed -- 10:10 AM PDT     0.00 knots Slack
Wed -- 12:13 PM PDT     Moonset
Wed -- 01:22 PM PDT     0.72 knots Max Flood
Wed -- 04:25 PM PDT     -0.00 knots Slack
Wed -- 07:31 PM PDT     -0.97 knots Max Ebb
Wed -- 08:02 PM PDT     Sunset
Wed -- 11:14 PM PDT     0.00 knots Slack
Wed -- 11:25 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.70.60.40.1-0.3-0.7-0.8-0.7-0.4-0.10.20.50.70.70.50.1-0.2-0.6-0.9-0.9-0.7-0.4-0.1

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 (1,6,7,8)
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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.