Thursday, October1, 2020
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Marine Weather and Tides
Thorne Bay, AK

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:02AMSunset 6:31PM Thursday October 1, 2020 4:56 AM AKDT (12:56 UTC) Moonrise 6:54PMMoonset 6:21AM 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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PKZ036 Clarence Strait- 340 Am Akdt Thu Oct 1 2020
Today..Light winds. Seas 2 ft or less. Patchy fog early in the morning.
Tonight..SE wind increasing to 15 kt late. Seas 3 ft. Rain late.
Fri..SE wind 20 kt. Seas 4 ft. Rain.
Fri night..SE wind 10 kt. Seas 2 ft or less, except 5 ft near ocean entrances. Rain.
Sat..NW wind 10 kt. Seas 2 ft or less.
Sun..S wind 15 kt becoming se 25 kt. Seas 4 ft.
Mon..S wind 10 kt. Seas 4 ft.


7 Day Forecast for Marine Location Near Thorne Bay, AK
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location: 55.92, -132.37     debug


Area Discussion for -
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FXAK67 PAJK 302128 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 128 PM AKDT Wed Sep 30 2020

SHORT TERM. /Through Thursday night/ . A gale force low southwest of Kodiak has begun to weaken as it moves northwest, crossing the Alaska Peninsula later tonight. The associated warm front that swept across the Panhandle from south to north on Tuesday and Tuesday night brought with it a very warm low level airmass. Many southerly locations saw their high temperatures for the day early on. By 7 am this morning, the temperature in Sitka had risen to 70 degrees (a new record there) and has been falling slowly ever since. The cold front associated with the Kodiak low will be the main weather maker for this evening and tonight. As of early this afternoon, the associated cloud shield covered all of Southeast Alaska and rain had begun on the outer coast from the Dixon Entrance north to Yakutat. The front moved in a little faster than originally anticipated and weather transitioned from stratiform to convective early as well. By late morning, lightning associated with thunderstorms was being detected over land from Cape Suckling to Cross Sound and west of Glacier Bay. The cold front has also displaced the warm sector to the east and a cooler low level warm air mass will advect in from the west behind the front tonight. Low level temps will rebound during the day Thursday as another warm airmass approaches the Panhandle from the south. The next front will arrive over the eastern Gulf and outer coast at the tail end of this short term forecast period late Thursday night.

Pre-frontal gales over the eastern Gulf have diminished this afternoon, but small craft winds and seas in excess of 8 feet persist. Winds and seas over the Gulf will continue to relax through Thursday morning, then ramp back up to high end gales in advance of the next front. On the inside, winds have remained relatively light with the current front except for Cross Sound which briefly got up to an easterly gale early this morning. As the cold front pushes inland, it will induce a brief ridging event over the inner channels tonight. This will produce some small craft southerlies over Lynn Canal tonight. By tomorrow morning, a very weak pressure gradient over the Panhandle and western Canada will result in light winds for most places.

Model agreement remains good through the short term with little change to the forecast. Exception was to transition to a convective environment earlier, include isolated thunderstorm activity for this afternoon/evening, and to lower wind speeds in the downtown Juneau area in response to an expected mountain wave that never materialized.

LONG TERM. /Friday through Tuesday/ As of 10pm Tuesday. Fairly active pattern, but models remain in good agreement on the timing of fronts so only minor adjustments were made to the extended forecast. The period begins with a gale force front over the outside waters and rain arriving along the outer coast early Friday morning. The rain spreads inland across the panhandle with a short period of moderate to heavy rates. Southerly jet stream winds along and ahead of the front brings with it another round of very warm air with freezing levels upwards of 8-12kft. Similar to the current frontal system, cold air will push in from the west behind the front late Friday night through Saturday. The CAA will cause a change over to showers Friday night, then a decreasing trend through Saturday afternoon. As with all cold fronts in the fall time, will need to watch for possible thunderstorm development over the gulf.

Another low moves into the western gulf from the SW Saturday night. The assoc front will likely cause another round of gale force winds over the outside waters and heavy rain looks likely for Sunday. Warm air is again drawn up by this system, but not to the extreme of the previous two. More pronounced will be the cooling trend behind it and into the start of next week. The coldest air looks to stay over the western gulf/Aleutians, but could see brisk mornings if timing of breaks in the clouds line up with overnight hours.

AJK Watches/Warnings/Advisories. PUBLIC . None. MARINE . Gale Warning for PKZ043-051-052. Small Craft Advisory for PKZ012-013-022-036-041-042-053.



Fritsch/Ferrin

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LCNA2 - Lincoln Rock, AK 19 mi46 min NW 2.9 G 5.1 51°F 1023.7 hPa49°F
GIXA2 42 mi23 min WNW 1 G 2.9 53°F 1021.6 hPa53°F
KECA2 - 9450460 - Ketchikan, AK 57 mi56 min WNW 7 G 7 51°F 53°F1024.4 hPa (+0.3)
CDEA2 - Cape Decision, AK 94 mi34 min ESE 2.9 G 6 53°F 1024.9 hPa52°F

Wind History for Ketchikan, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wrangell, AK39 mi60 minNW 30.50 miFog48°F48°F100%1025.2 hPa

Link to 5 minute data for PAWG

Wind History from AWG (wind in knots)
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Last 24hrE4CalmE6Calm--CalmE53CalmE4SE6--E8E8N3CalmCalmW5----W3E3CalmNW3
1 day agoCalmNE3Calm--E5SE4CalmCalmE43SE4N4CalmCalmCalmCalmNE8CalmCalm----N3Calm4
2 days ago55E8--S5E5E10E53CalmE3CalmNW3CalmE3--SE5SE4--CalmE5--NE5N3

Tide / Current Tables for Dewey Anchorage, Etolin Island, Alaska
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Dewey Anchorage
Click for Map
Thu -- 01:16 AM AKDT     16.18 feet High Tide
Thu -- 06:21 AM AKDT     Moonset
Thu -- 06:53 AM AKDT     Sunrise
Thu -- 07:23 AM AKDT     -0.02 feet Low Tide
Thu -- 01:06 PM AKDT     Full Moon
Thu -- 01:40 PM AKDT     16.39 feet High Tide
Thu -- 06:22 PM AKDT     Sunset
Thu -- 06:54 PM AKDT     Moonrise
Thu -- 07:41 PM AKDT     0.30 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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14.616.115.613.29.55.420.10.42.561013.615.916.314.611.273.20.80.42.15.39.3

Tide / Current Tables for Ratz Harbor, Prince of Wales Island, Alaska
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Ratz Harbor
Click for Map
Thu -- 01:16 AM AKDT     16.18 feet High Tide
Thu -- 06:22 AM AKDT     Moonset
Thu -- 06:54 AM AKDT     Sunrise
Thu -- 07:23 AM AKDT     -0.02 feet Low Tide
Thu -- 01:06 PM AKDT     Full Moon
Thu -- 01:40 PM AKDT     16.39 feet High Tide
Thu -- 06:23 PM AKDT     Sunset
Thu -- 06:55 PM AKDT     Moonrise
Thu -- 07:41 PM AKDT     0.30 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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14.616.115.613.29.55.420.10.42.561013.615.916.314.611.273.20.80.42.15.39.3

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
Ground Weather Radar Station Biorka Is., AK
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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.