Wednesday, January27, 2021
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Marine Weather and Tides
Excursion Inlet, AK

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 8:09AMSunset 4:11PM Wednesday January 27, 2021 1:41 PM AKST (22:41 UTC) Moonrise 3:33PMMoonset 9:26AM Illumination 100% Phase: Full Moon; 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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PKZ013 Southern Lynn Canal- 359 Am Akst Wed Jan 27 2021
.gale warning through this afternoon...
Today..N wind 40 kt. Seas 10 ft. Freezing spray early in the morning.
Tonight..N wind 30 kt diminishing to 20 kt late. Seas 8 ft subsiding late.
Thu..N wind 15 kt. Seas 3 ft. Freezing spray in the morning.
Thu night..NE wind 15 kt. Seas 3 ft.
Fri..N wind 25 kt. Seas 5 ft.
Sat..N wind 25 kt. Seas 5 ft.
Sun..N wind 25 kt. Seas 5 ft.


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


Area Discussion for -
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FXAK67 PAJK 271453 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 553 AM AKST Wed Jan 27 2021

SHORT TERM. /Through Thu night/ Strong northerly outflow continues this morning with gale force winds blowing down Lynn Canal, Stephens Passage, and out of Taku Inlet this morning. Gusty winds have also been seen out of Cross Sound, and down Chatham Strait. The Taku winds have been active in downtown Juneau and Douglas as well overnight.

The main story for the short range is continued outflow winds today that will diminish into Thu as the Yukon high weakens and moves into northern BC. Not many changes to the forecast with most things staying on track for winds. The wind chill advisory for White Pass continues until midnight tonight. Observed wind chills have reached -32 overnight at White Pass. The one notable change was a warm up of temperatures in areas where there was wind due to mixing not allowing the overnight inversion to set up.

As the outflow diminishing Thu focus shifts to the front coming in from the west Thu into Thu night. Winds along it in the central and northern gulf have been increased to gale force as the system is trending stronger in recent guidance. Snow will also be starting up at Yakutat Thu with advisory level snow rates expected. Snow totals will likely reach about 6 inches for the period from Thu morning through late Thu night. The rest of the outer coast will likely see precip start up Thu night. Precip could travel farther inland then that, but confidence is rather low once you get into the inner channels due to some easterly outflow still present. Conditions will be cold enough that most precip will fall as snow in most places with light accumulation expected through late Thu night.

LONG TERM. With an upper low firmly entrenched over the western Gulf of Alaska and our heavy-duty ridge responsible for all of our dry and cold weather this week shoved into western Canada, energy associated with the North Pacific storm track jets forward to the south of us. This effectively slows the threatening surface front offshore, all but preventing moisture incursion through the Inner Channels. Not only does the action to the south hinder forward progress of the precipitation, but it also helps preserve the cold air and very low freezing levels throughout most of the Panhandle Friday into the early weekend. The bulk of precipitation then should fall as snow uncharacteristically for coastal communities and the south, rather than the typically snowier northern Inner Channels.

This pattern persists later into the weekend, except that the lowest heights migrate to the south of us rather than the west. Cold continues, yes. But chances of precipitation should fall as we head into early next week with increasing offshore flow. With this in mind, there should be periods of outflow winds, stronger in the northern Inner Channels, and much of the time period, northerly winds dominate.

Sometime early next week, a North Pacific storm well to our west begins to accelerate the train of synoptic features--including ridges and troughs--to the east once again. Thus, a ridge rebuilds early next week, but just as quickly folds into Canada as frontal action sweeps into the Gulf of Alaska. Therefore, precipitation pushes back into the Panhandle. For now, we see little reason to believe that much of it will fall as snow. But temperature confidence by mid-next week falls, and thus p-type as well.

AJK WATCHES/WARNINGS/ADVISORIES. PUBLIC . Strong Wind through this evening for AKZ018-019-025. Strong Wind until noon AKST today for AKZ020. Wind Chill Advisory until midnight AKST tonight for AKZ018. MARINE . Heavy Freezing Spray Warning for PKZ012. Gale Warning for PKZ012-013-031-034. Small Craft Advisory for PKZ011-021-022-032-033-041>043-051-052.



EAL/JWA

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 mi32 min N 25 G 39 27°F 1016.8 hPa10°F
PTLA2 8 mi30 min E 12 G 17 25°F 1015.3 hPa5°F
LIXA2 12 mi29 min N 32 G 42 26°F 1014.2 hPa13°F
NKXA2 12 mi29 min NE 25 G 36 26°F 1014.5 hPa8°F
MVXA2 15 mi29 min S 7 G 18 24°F 1014.6 hPa1°F
RIXA2 19 mi178 min N 32 G 40 25°F 1013.7 hPa9°F
SCXA2 19 mi28 min E 13 G 19 25°F 1013.9 hPa2°F
MXXA2 25 mi29 min ESE 6 G 12 23°F 1014.8 hPa-1°F
SISA2 - Sisters Island, AK 26 mi80 min NW 5.1 G 11 26°F
JNEA2 - 9452210 - Juneau, AK 26 mi54 min NE 5.1 G 8.9 22°F 41°F1017.9 hPa
JLXA2 27 mi28 min W 8 G 19 22°F 1014.1 hPa-3°F
JNGA2 27 mi27 min S 6 G 16 23°F 1017.2 hPa-2°F
JMLA2 28 mi30 min N 9.9 G 36 22°F 1014.3 hPa-3°F
SDIA2 - South Douglas, AK 28 mi36 min WNW 13 G 17 22°F 1016.3 hPa5°F
MRNA2 36 mi30 min NNW 28 G 50 23°F 1013.2 hPa2°F
PAXA2 41 mi28 min N 27 G 43 21°F 1014 hPa5°F
EROA2 - Eldred Rock, AK 42 mi78 min N 39 G 47 24°F 1021.2 hPa24°F
PBPA2 - Point Bishop, AK 42 mi32 min N 33 G 49 22°F 1015.2 hPa4°F
ERXA2 42 mi30 min N 31 G 42 24°F 1015.3 hPa5°F
GUXA2 45 mi29 min N 8 G 18 28°F 1014.2 hPa-3°F
TKEA2 - Tenakee Springs, AK 48 mi30 min SSW 2.9 G 6 29°F 1013.8 hPa6°F

Wind History for Juneau, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Juneau, Juneau International Airport, AK16 mi49 minE 1410.00 miFair23°F1°F38%1017.6 hPa

Link to 5 minute data for PAJN

Wind History from AJN (wind in knots)
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Last 24hrE12E12E12E7CalmCalmCalmN4CalmSW735466
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1 day agoS3CalmCalmCalmSW3--CalmCalmCalmCalmCalmCalmCalmSE4E5W5CalmCalmCalmCalmCalm3E10
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2 days agoE5CalmCalmE3CalmCalmCalmCalmCalm--CalmW3CalmSW3CalmCalmE5CalmE5E3CalmCalmSE4Calm

Tide / Current Tables for Barlow Cove, Mansfield Peninsula, Lynn Canal, Alaska
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Barlow Cove
Click for Map
Wed -- 12:22 AM AKST     13.21 feet High Tide
Wed -- 05:56 AM AKST     3.88 feet Low Tide
Wed -- 08:14 AM AKST     Sunrise
Wed -- 08:24 AM AKST     Moonset
Wed -- 11:52 AM AKST     15.91 feet High Tide
Wed -- 02:33 PM AKST     Moonrise
Wed -- 04:11 PM AKST     Sunset
Wed -- 06:33 PM AKST     -2.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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13.112.911.59.16.54.63.94.87.210.313.215.315.914.812.28.340.3-1.9-2-03.47.410.9

Tide / Current Tables for Lincoln Island, Lynn Canal, Alaska
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Lincoln Island
Click for Map
Wed -- 12:31 AM AKST     14.03 feet High Tide
Wed -- 06:03 AM AKST     4.18 feet Low Tide
Wed -- 08:15 AM AKST     Sunrise
Wed -- 08:26 AM AKST     Moonset
Wed -- 12:02 PM AKST     16.67 feet High Tide
Wed -- 02:32 PM AKST     Moonrise
Wed -- 04:11 PM AKST     Sunset
Wed -- 06:40 PM AKST     -1.94 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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13.813.912.510.17.35.14.257.310.413.515.816.715.913.39.55.11.1-1.4-1.8-03.47.411.2

Weather Map
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wmap_P
GEOS Local Image of PacificNorthwest    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




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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.