Monday, August26, 2019 L-36.com


Marine Weather and Tides
Calpella, CA

Version 3.4
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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 6:34AMSunset 7:54PM Monday August 26, 2019 12:54 AM PDT (07:54 UTC) Moonrise 1:08AMMoonset 4:20PM Illumination 18% Phase: Waning Crescent; Moon at 25 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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PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 953 Pm Pdt Sun Aug 25 2019
Tonight..NW winds 5 to 10 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft at 12 seconds and S around 2 ft at 13 seconds. Patchy fog.
Mon..SW winds 5 to 10 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft at 12 seconds and S around 2 ft at 13 seconds. Patchy fog.
Mon night..W winds 5 to 10 kt. Wind waves 1 to 2 ft. NW swell 4 to 6 ft at 11 seconds and S around 2 ft at 13 seconds. Patchy fog.
Tue..S winds 5 to 10 kt. Wind waves 1 to 2 ft. NW swell 3 to 5 ft at 10 seconds and S around 2 ft at 13 seconds. Patchy fog.
Tue night..NW winds 5 to 10 kt. Wind waves 1 to 2 ft. NW swell 3 to 5 ft at 9 seconds and S around 2 ft at 13 seconds.
Wed..SW winds 5 to 10 kt. Wind waves 1 to 2 ft. NW swell 2 to 4 ft at 9 seconds.
Wed night..W winds 5 to 10 kt. Wind waves 1 to 2 ft. NW swell 2 to 3 ft at 9 seconds.
Thu..W winds 5 to 10 kt. Wind waves 1 to 2 ft. Mixed swell nw 2 to 3 ft and sw around 2 ft.
Fri..NW winds 10 to 15 kt. Wind waves 1 to 2 ft. Mixed swell nw 2 to 3 ft and S around 2 ft.
PZZ500 953 Pm Pdt Sun Aug 25 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Weakening high pressure over the eastern pacific will keep light winds over the coastal waters through about the middle of the week. SEa breezes will develop in the afternoons and evenings over the san francisco bay to the delta.


7 Day Forecast for Marine Location Near Calpella, CA
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location: 39.21, -123.35     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 252305
afdeka
area forecast discussion
national weather service eureka ca
405 pm pdt Sun aug 25 2019

Synopsis Hot inland conditions can be expected through
Wednesday, particularly on Monday and Tuesday, with warmer than
normal temperatures on the coast as well. Shallow coastal clouds
will be more patchy and localized than recent days, before
becoming more widespread again by Wednesday and Thursday.

Isolated but mostly dry thunderstorms will be possible Wednesday
or Thursday.

Discussion High pressure has provided another seasonably sunny
and dry day across all of inland northwest california, with a
shallow marine layer keeping coastal areas cooler, with some
persistent fog along many of the beaches. Temperatures are running
pretty close to yesterday's readings at the coast, with the
exception being in some areas where fog has been more persistent,
keeping readings a bit cooler. Inland, much of the region is
several degrees warmer than yesterday, with inland valley areas in
the 90s set to peak near 100 in the hottest spots. The warming
trend is set to continue through Tuesday, as a strong mid and
upper-level ridge builds northward over our area. Previous
forecast highs remain essentially the same, with 100 to 107 degree
readings expected Monday and Tuesday for much of the interior
valleys. The ridge will retreat toward the intermountain west
later this week, with gradually 'cooling' back into the 90s for
highs. Along the coast, have kept forecast readings the same as
the previous forecast package as well, however there is a lower
degree of confidence in the low to mid 70s for Monday and Tuesday
highs. While offshore flow will develop above the boundary layer,
that may only serve to strengthen the inversion in place and make
whatever stratus and fog we have more stubborn, especially to the
south of CAPE mendocino where the current extent of stratus is
much greater. As the surface thermal trough does shift offshore on
Tuesday, there may be a brief period where the marine layer around
humboldt bay is scoured out and allows for warming, before winds
turn back onshore. A reinforcing southerly surge of stratus will
likely increase the coverage of low clouds and fog along the
mendocino coast and offshore on Tuesday, with a return to more
widespread and persistent overnight and morning clouds and fog for
the rest of the week.

The other forecast challenge will continue to be any isolated
thunderstorm threat Tuesday night through Wednesday night, as an
elevated layer of moisture in association with the remnants of
'ivo'. The degree of moisture and instability with this system
remains in question, though current model guidance continues to
support enough of a threat to keep the isolated dry thunderstorms
we have in the forecast. The best chance may be found over the
trinity alps and the siskiyou wilderness Wednesday afternoon.

Aside from any localized rainfall with any thunderstorm that does
manage to develop that time period, dry weather is expected for
our area through next week.

Aviation Areas of coastal stratus will continue to affect
coastal areas through Monday, while inland areas will remain clear
andVFR. The forecast at cec contains a high degree of
uncertainty, as southerly winds may allow redeveloping stratus to
the south to creep northward. The stratus may be thinner and less
persistent than today, but some fog cannot be ruled out early
Monday morning. Confidence is greater in a period of lifr
conditions and fog at acv after 06z tonight, though the afternoon
hours Tuesday should turn out mostly sunny.

Marine Fresh to strong northerlies are present across the outer
waters this afternoon with light southerlies along the coast. Wind
waves are still dominating the sea state ranging from 4 to 8 feet
across the waters this afternoon however a southerly (2ft at 15 sec)
and westerly (3-4ft at 12 sec) swell are also moving through the
waters. Northerly winds will continue to increase this evening
across the outer waters, as well as near CAPE mendocino and point
saint george. These increasing northerlies will lead to a ramp up in
wind driven seas to 10 to 13 ft by late tonight into Monday across
the northern outer waters. Higher seas will also propagate into the
southern outer waters with wind waves of 6 to 10 feet. The inner
waters will primarily see light northerly winds develop tonight
(except for near CAPE mendocino and point saint george as mentioned
above). However, larger wind waves from the outer waters will
propagate into the inner waters late tonight into Monday. At this
time, it appears that the wind waves will remain just below small
craft advisory criteria for the inner waters therefore no small
craft advisory has been issued.

An upper level trough will approach the area Monday night into
Tuesday allowing the pressure gradient to relax and hence the
northerly winds and seas will quickly diminish. This trough will
also be responsible for the formation of widespread gentle to
moderate southerly winds and calmer seas through the end of the
week. Wci

Fire weather Seasonably hot weather will continue Sunday, with
temperatures peaking on Monday and Tuesday. Inland afternoon high
temperatures are likely to climb from the mid to upper 90s today,
to between 100 and 107 degrees Monday and Tuesday. In addition to
the increasing heat, humidity will also decrease, with low
afternoon minimums expected and moderate to poor overnight
recoveries. While winds are not expected to be particularly
strong on a large scale, gusty offshore winds are expected to
develop Sunday night and Monday morning across primarily the upper
elevations of del norte county. This combination of gusty winds
and poor overnight recoveries may result in elevated conditions
Sunday night in those areas. Otherwise, winds will remain
generally light and dominated by daytime onshore nighttime
offshore flow that is significantly augmented by local terrain.

Meanwhile, little to no wetting precipitation is expected for the
foreseeable future. However, the probability of isolated and
mostly dry thunderstorms appears to be increasing slightly across
parts of northwest california toward the middle of the week. Latest
trends suggest that the most likely day for any local lightning
strikes is looking like Wednesday. Brc

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory until 9 am pdt
Tuesday for pzz470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANVC1 - 9416841 - Arena Cove, CA 28 mi55 min E 2.9 G 6 53°F 54°F1014.5 hPa (-0.6)
46014 - PT ARENA - 19NM North of Point Arena, CA 33 mi35 min SSE 1.9 G 3.9 56°F 57°F1013.9 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA9 mi5 hrsN 510.00 miFair86°F45°F24%1012.6 hPa

Link to 5 minute data for KUKI

Wind History from UKI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmNE3Calm3Calm34SE6S6W11
G16
W8SW4N5CalmCalmCalmCalm
1 day agoS3CalmS5S3S4S4S43CalmCalmE4SE6SE10SE9SE10SE11SE9SW6NE6NE5N4CalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmE3CalmSE4SE8SE9SE9W10W7NE9N6N6CalmCalmSE3Calm

Tide / Current Tables for Albion, California
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Albion
Click for Map
Mon -- 02:10 AM PDT     Moonrise
Mon -- 02:30 AM PDT     0.12 feet Low Tide
Mon -- 06:38 AM PDT     Sunrise
Mon -- 09:42 AM PDT     4.36 feet High Tide
Mon -- 02:13 PM PDT     2.99 feet Low Tide
Mon -- 05:21 PM PDT     Moonset
Mon -- 07:54 PM PDT     Sunset
Mon -- 08:11 PM PDT     6.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.60.70.20.20.61.32.133.84.34.34.13.73.233.13.64.35.25.86.265.34.1

Tide / Current Tables for Mendocino, Mendocino Bay, California
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Mendocino
Click for Map
Mon -- 02:09 AM PDT     Moonrise
Mon -- 02:28 AM PDT     0.12 feet Low Tide
Mon -- 06:38 AM PDT     Sunrise
Mon -- 09:35 AM PDT     4.36 feet High Tide
Mon -- 02:11 PM PDT     2.99 feet Low Tide
Mon -- 05:22 PM PDT     Moonset
Mon -- 07:55 PM PDT     Sunset
Mon -- 08:04 PM PDT     6.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.50.60.20.20.61.32.23.13.84.34.34.13.63.233.13.64.45.25.96.265.24

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 (3,6,7,8)
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Ground Weather Radar Station Beal AFB, 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.