Saturday, July4, 2020
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Marine Weather and Tides
Cleone, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:50AMSunset 8:43PM Saturday July 4, 2020 11:47 AM PDT (18:47 UTC) Moonrise 7:46PMMoonset 4:15AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 800 Am Pdt Sat Jul 4 2020
.small craft advisory in effect through Sunday evening...
Today..NW winds 15 to 25 kt. Gusts up to 35 kt near cape mendocino. Waves N 7 ft at 7 seconds...and S 3 ft at 18 seconds.
Tonight..NW winds 15 to 25 kt. Waves N 7 ft at 7 seconds... And S 4 ft at 18 seconds.
Sun..NW winds 15 to 25 kt. Waves N 7 ft at 7 seconds...and S 3 ft at 16 seconds.
Sun night..N winds 15 to 20 kt. Waves N 7 ft at 7 seconds... And S 3 ft at 16 seconds.
Mon..NW winds 10 to 20 kt. Waves N 6 ft at 6 seconds...and S 3 ft at 15 seconds.
Tue..NW winds 10 to 20 kt. Waves N 5 ft at 6 seconds...and S 2 ft at 14 seconds.
Wed..NW winds 10 to 20 kt. Waves N 5 ft at 5 seconds...and S 2 ft at 15 seconds.
PZZ400 800 Am Pdt Sat Jul 4 2020
Synopsis for northern california waters..Fresh to strong northerly breezes and steep seas will persist south of cape mendocino through Sunday night. Winds will be lighter north of the cape, but seas will remain steep beyond 10 nm from shore.


7 Day Forecast for Marine Location Near Cleone, CA
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location: 39.63, -123.78     debug


Area Discussion for - Eureka, CA
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FXUS66 KEKA 041240 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 540 AM PDT Sat Jul 4 2020

SYNOPSIS. Near seasonal temperatures and dry weather will persist for the next seven days. Coastal areas will see a continued marine influence with nighttime and morning low clouds and patchy fog and clearing skies by each afternoon.

DISCUSSION. Very July like weather pattern coast side as areas of low clouds and patchy fog are evident. The marine clouds and fog is expected to break again later this morning giving way to another nice afternoon up and down the coast. Conditions will remain generally unchanged for the next week, with nearly seasonal temperatures and dry conditions. Nighttime stratus and patchy fog will develop each day over the coastal waters and adjacent land areas as well as up the major river valleys. This will burn off quickly during the mid to late morning hours each day with the strong summer sun. The GFS depicts a weak shortwave diving SE toward the N part of the area by Thursday, brining a slight chance of showers to the extreme N, but other long range models are less bullish with this scenario. Have opted to keep rain chances at a silent 10 percent or less during that time period. Other concerns include a threat of Sneaker waves along area beaches this holiday weekend (see beach statement below) and enhanced wildfire concerns as a very dry airmass envelopes much of NW CA this weekend. (see fire wx discussion below).

AVIATION. Overnight, brief bursts of light offshore winds were enough to partially debilitate the formation of coastal stratus. However, periods of IFR to brief LIFR will be possible through the morning hours as winds turn calm and then onshore. Conditions will then improve to VFR. The synoptic pattern does not change much overnight, thus a similar setup may occur. The exception will be a deepening of the marine layer through the weekend in response to upper-level troughing. This may prove to increase coverage and times of lowered Cigs and Vis. /JJW

MARINE. A moderate northerly wind regime persists over the waters with Small Craft Advisories in place for the Outer waters and Southern Inner waters. Steep short-period seas 6 to 8 feet at 7 seconds in the aforementioned zones, as well as gusty northerly winds 15-25 kt in locations mainly alongside and south of Cape Mendocino are the primary hazards. A southerly swell will continue to fill in through the weekend, and will present a low-end sneaker wave threat. See Beach Hazards for further details. The latest guidance suggests the Small Craft Advisory conditons in the southern waters may persist into early next week, and will be monitored for the need for extension.

FIRE WEATHER. Critically low relative are being observed across the region as highest ridges are poking into a very dry airmass early this morning. The humidity values are expected to remain low as a very dry airmass hovers between 2k and 6k ft in elevation over much of NW CA and the Bay Area. Afternoon min RH values may fall to near single digits across eastern interior valleys this afternoon while overnight recoveries along upper slopes and ridges will remain very low. In addition, model guidance shows winds becoming gusty out of the W-NW during the afternoon hours, with locally gusty winds across portions of eastern Lake Co. this afternoon and evening while possibly persisting at ridgetop level through late tonight.

BEACH HAZARDS. An enhanced long period southerly swell on the order of about 4 feet at 19 seconds is moving across the waters and will persist through Sunday evening. This will lead to slightly increased sneaker wave potential this weekend on mainly south facing beaches.

EKA WATCHES/WARNINGS/ADVISORIES. CA . Beach Hazards Statement through Sunday evening for CAZ101-103- 104-109.

NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory until 11 PM PDT Sunday for PZZ455-475.

Small Craft Advisory until 6 AM PDT Sunday for PZZ470.



Visit us at https://www.weather.gov/eureka

Follow us on Facebook and Twitter at: https://www.facebook.com/NWSEureka https://www.twitter.com/NWSEureka

For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46014 - PT ARENA - 19NM North of Point Arena, CA 29 mi27 min NW 19 G 23 51°F1019.6 hPa
ANVC1 - 9416841 - Arena Cove, CA 50 mi53 min NW 8 G 16 56°F 52°F1019.8 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA46 mi51 minNNW 510.00 miFair82°F45°F27%1016.8 hPa

Link to 5 minute data for KUKI

Wind History from UKI (wind in knots)
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Last 24hr34N9N11NW8NW10
G18
66N7N6S3CalmNW3CalmCalmCalmCalmCalmCalmCalmCalmCalm3N5
1 day ago4SE7SE8SW7W12W8W8NE5E3SE5S7S6S4S5S55S5S4CalmS3SE53SE4Calm
2 days agoE3E7E5SW5W10W15
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W86N7CalmCalmCalmCalmCalmCalmCalmE3CalmS3CalmCalmCalmCalmCalm

Tide / Current Tables for Westport, California
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Westport
Click for Map
Sat -- 05:15 AM PDT     Moonset
Sat -- 05:20 AM PDT     -1.34 feet Low Tide
Sat -- 05:53 AM PDT     Sunrise
Sat -- 12:29 PM PDT     4.71 feet High Tide
Sat -- 04:59 PM PDT     2.79 feet Low Tide
Sat -- 08:45 PM PDT     Moonrise
Sat -- 08:46 PM PDT     Sunset
Sat -- 09:44 PM PDT     Full Moon
Sat -- 11:00 PM PDT     6.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.64.12.30.5-0.7-1.3-1.2-0.50.51.7344.64.74.23.532.833.74.65.66.36.6

Tide / Current Tables for Point Cabrillo, California Current
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Point Cabrillo
Click for Map
Sat -- 02:21 AM PDT     -1.66 knots Max Ebb
Sat -- 05:16 AM PDT     Moonset
Sat -- 05:54 AM PDT     Sunrise
Sat -- 06:20 AM PDT     0.00 knots Slack
Sat -- 09:30 AM PDT     1.32 knots Max Flood
Sat -- 12:48 PM PDT     -0.00 knots Slack
Sat -- 03:04 PM PDT     -0.70 knots Max Ebb
Sat -- 06:08 PM PDT     0.00 knots Slack
Sat -- 08:44 PM PDT     Moonrise
Sat -- 08:45 PM PDT     Sunset
Sat -- 08:58 PM PDT     0.91 knots Max Flood
Sat -- 09:44 PM PDT     Full Moon
Sat -- 11:44 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.7-1.3-1.6-1.6-1.3-0.9-0.20.511.31.310.5-0.1-0.6-0.7-0.6-0.4-0.10.40.80.90.80.4

Weather Map
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wmap_P
GEOS 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 (14,3,4,5)
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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 numerous 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.