Saturday, July11, 2020
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Marine Weather and Tides
Excursion Inlet, AK

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 4:08AMSunset 9:58PM Saturday July 11, 2020 6:03 PM AKDT (02:03 UTC) Moonrise 12:23AMMoonset 12:01PM Illumination 59% 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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PKZ013 Southern Lynn Canal- 348 Pm Akdt Sat Jul 11 2020
Tonight..S wind 15 kt diminishing to 10 kt late. Seas 3 ft in the evening then 2 ft or less.
Sun..S wind 15 kt. Seas 3 ft.
Sun night..S wind 15 kt diminishing to 10 kt in the evening. Seas 3 ft in the evening then 2 ft or less.
Mon..S wind 10 kt. Seas 2 ft or less.
Mon night..SE wind 10 kt. Seas 2 ft or less. Rain.
Tue..SE wind 10 kt. Seas 2 ft or less.
Wed..Light winds becoming S 10 kt. Seas 2 ft or less.
Thu..Light winds. Seas 2 ft or less.


7 Day Forecast for Marine Location Near Excursion Inlet CDP, AK
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location: 58.42, -134.88     debug


Area Discussion for -
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FXAK67 PAJK 112256 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 256 PM AKDT Sat Jul 11 2020

SHORT TERM. The system that has been driving the weather in SE Alaska over the past few days has begun winding down. Aloft, a trough is steadily pushing eastward across the Gulf, with a weakening low associated with it at the surface reflecting this movement. While rain showers remain, especially throughout the southern panhandle, it is expected that these will diminish in coverage overnight on Saturday, and as the low departs, will become more scattered across the panhandle on Sunday. On Sunday, as ridging briefly builds in to replace the departing system, it does look like some areas, particularly the southern panhandle, could see some breaks in the clouds, though much of the area will continue to experience abundant cloud cover.

The reprieve will not last long however, as the next system takes aim at the panhandle. A low pushing into the Gulf from the Pacific will bring with it a frontal band primed to hit SE Alaska. Model guidance is currently split on exactly when this band will actually arrive in the panhandle, but the consensus currently falls between Monday afternoon and Tuesday morning, with the NAM bringing the front in sooner while the GFS maintains a slower approach. When the front does arrive, it currently looks like it will bring a healthy amount of moisture support, setting the stage for more abundant rain across the area, as well as stronger winds in the outer coastal waters.

Fire weather danger is expected to remain minimal, as high temperatures will continue to be limited to the upper 50s or 60s, and lingering rain showers will help mitigate the chance of parts of the area substantially drying out. Forecaster confidence is average.

LONG TERM. /Monday through next Friday/ As of 10pm Friday. Monday starts off with a chance of showers in the forecast, but overall the first part of the day looks decent. Then a new system moving across the gulf from the west will cause increasing clouds and POP, but models differ quite a bit on timing and position of that. The 11/00z model runs show the ECMWF is the fastest and the GFS is the still slowest keeping the low over the western gulf much longer while the Canadian is in between. Generally the consensus is still for rain to move in Monday night and for Tuesday to be the most likely wet day of the week. In previous runs the most models were taking a slightly further south track than today, but have kept the focus of highest POP over the south since they will get it with either track. Due to the expected cloudy/rainy weather on Tues, went below NBM/WPC guidance for high temperatures and closer to MOS, but may need to lower them more into the mid 50s.

Once the low weakens and moves through on Wednesday, there are signs of more ridging for the end of the week that could give us some breaks. But there is a lot of uncertainty in this forecast. The GFS brings another low to quickly replace the first and keep showers going and the Canadian generates a low to the south. Model snow levels and temperatures still show a slight increasing trend however, so any sunny breaks should be in the 60s.

AJK Watches/Warnings/Advisories. PUBLIC . None. MARINE . None.



GFS/Ferrin

Visit us at http://www.weather.gov/Juneau


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRTA2 - Point Retreat, AK 4 mi53 min S 1.9 G 9.9 59°F 1011.6 hPa52°F
PTLA2 8 mi31 min S 4.1 G 8 58°F 1010.4 hPa53°F
JNEA2 - 9452210 - Juneau, AK 26 mi63 min SSE 8 G 8.9 55°F 46°F1012.4 hPa (+0.7)

Wind History for Juneau, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Juneau, Juneau International Airport, AK16 mi70 minESE 9 G 1610.00 miHeavy Rain57°F50°F78%1011.7 hPa

Link to 5 minute data for PAJN

Wind History from AJN (wind in knots)
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Last 24hrE7E6NE5NE4CalmCalmCalmE4CalmCalmCalmCalmE4CalmCalmSW4E6SE9W7W6E13E13SE9
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1 day agoE11E10E8E6NE5E5W3CalmE6E10E5E8E5E7E9E7E8E7SE8SE8E9SE11E11E10
2 days agoE9E9E9E9E4E4NE3NE3E8E7E10E7E9E10E10E10E12E14E12SE13SE14
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Tide / Current Tables for Barlow Cove, Mansfield Peninsula, Lynn Canal, Alaska
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Barlow Cove
Click for Map
Sat -- 12:22 AM AKDT     Moonrise
Sat -- 04:12 AM AKDT     Sunrise
Sat -- 05:34 AM AKDT     12.32 feet High Tide
Sat -- 11:59 AM AKDT     1.42 feet Low Tide
Sat -- 12:02 PM AKDT     Moonset
Sat -- 06:31 PM AKDT     12.92 feet High Tide
Sat -- 09:56 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.74.76.68.910.912.112.211.19.16.43.92.11.42.14.16.79.311.512.712.811.79.87.55.4

Tide / Current Tables for Lincoln Island, Lynn Canal, Alaska
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Lincoln Island
Click for Map
Sat -- 12:23 AM AKDT     Moonrise
Sat -- 04:11 AM AKDT     Sunrise
Sat -- 05:44 AM AKDT     13.15 feet High Tide
Sat -- 12:02 PM AKDT     Moonset
Sat -- 12:06 PM AKDT     1.72 feet Low Tide
Sat -- 06:41 PM AKDT     13.74 feet High Tide
Sat -- 09:58 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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44.86.79.111.312.813.112.210.17.44.62.61.72.34.26.89.61213.413.712.710.88.36.1

Weather Map
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wmap_P
GEOS Local Image of PacificNorthwest    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 (22,6,7,8)
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Ground Weather Radar Station Biorka Is., AK
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weather_mapweather_map weather_map

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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.