Tuesday, September22, 2020
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Marine Weather and Tides
Metlakatla, 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 7:18AMSunset 7:36PM Monday September 21, 2020 9:06 PM PDT (04:06 UTC) Moonrise 12:30PMMoonset 8:49PM Illumination 24% Phase: Waxing Crescent; Moon at 5 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- 324 Pm Akdt Mon Sep 21 2020
.small craft advisory late tonight through Tuesday...
Tonight..S wind 15 kt becoming se 25 kt late. Seas 5 ft.
Tue..SE wind increasing to 30 kt. Seas 7 ft. Showers.
Tue night..SE wind 30 kt. Seas 7 ft. Showers.
Wed..SE wind 25 kt. Seas 6 ft. Showers.
Wed night..SE wind 20 kt. Seas 5 ft. Showers.
Thu..SE wind 20 kt. Seas 5 ft.
Fri..SE wind 15 kt. Seas 3 ft.
Sat..S wind 20 kt. Seas 4 ft.


7 Day Forecast for Marine Location Near Metlakatla, AK
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location: 55.23, -131.13     debug


Area Discussion for -
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FXAK67 PAJK 212229 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 229 PM AKDT Mon Sep 21 2020

SHORT TERM. Showers have been numerous today along the outer coast and more scattered further inland as the showers get shadowed by the mountains as they move across. Still think that a more organized band could move inland to the Juneau area and even up to Haines/Skagway this evening. Winds have been primarily out of the E- SE around 10-15mph, but with some higher gusts out of channels open to the east, like at Scull Island.

The story of the week is a very large low pressure system, currently south of the Aleutians, with a huge occluded front wrapping around it and extending to the central gulf. The front will progress eastward tonight, with gale force winds of 35-45kt over the offshore and outside waters by Tuesday morning. But rain and and the wind looks to only just tag the outer coast land areas on Tuesday. This is where the forecast starts to change. Models have come into better agreement on the main low center taking a more southern track, but with the occlusion remaining extended outward along the periphery of the gulf. This should keep the front from making very far inland, so have lowered POP for the inner channels and kept it highest for Prince of Wales, Baranof Island and up to Yakutat.

Then on Tuesday night a new low center/trough forms along the front off of Dixon Entrance. This will cause the front to back off the coast and become oriented more E-W. The new, small low then rotates about the parent low, through the gulf, taking a band of showers with it through Wednesday morning. Some models give more weight to the new low, making it the dominant one, but generally this pattern of small lows rotating about the larger circulation (Fujiwara effect) continues into Thursday. Expect multiple bands of showers over the next few days with the highest POP over the southern panhandle and lower POP for the northern inner channels. As each band moves through, winds will likely become gusty for a period, or even vary in wind direction. The further southern track of the parent low will cause winds to shift out of the N-NE for most of the northern and central inner channels.

Forecast confidence is below average for timing of specific bands of showers.

LONG TERM. /Wednesday through Monday/ As of Sunday evening. In the upper levels, a broad area of troughing will dominate the Gulf, with vorticity evident in the mid-levels. Closer to the surface, a large corresponding low will move into the Gulf, the remains of a strong autumn front lie along the panhandle and embedded shortwaves moving towards the panhandle on Wednesday. The front is spreading in more from the south than the west so the better rains and winds are over the south, while a north or northeast flow will be found over the northern panhandle. This trend has continued so lowered pops for Wednesday to early Thursday across the Lynn Canal area.

Beyond this event, forecast confidence degrades as it becomes difficult to determine just how long the main low will remain in the Gulf. The general trend is to keep most of the panhandle under generally rainy conditions through the rest of the week. Some of the ensembles are hinting at the possibility of another system over the weekend, but still too far out to be very confident. Only minor changes made to temperatures. Forecaster confidence is average.

AJK Watches/Warnings/Advisories. PUBLIC . Strong Wind from Tuesday morning through late Tuesday night for AKZ027. Strong Wind from Tuesday morning through Tuesday evening for AKZ023. MARINE . Gale Warning for PKZ041>043-051-052. Small Craft Advisory for PKZ021-022-031>036-053.



Ferrin/Bezenek

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MRYA2 9 mi24 min SSW 1 G 4.1 53°F 50°F
KECA2 - 9450460 - Ketchikan, AK 27 mi48 min E 1.9 G 4.1 54°F 54°F1012.5 hPa
SLXA2 28 mi21 min E 4.1 G 7 53°F 1009.1 hPa50°F
KEXA2 31 mi23 min SE 4.1 G 8 55°F 1009.9 hPa50°F
GIXA2 43 mi23 min ESE 9.9 G 16 55°F 1009.1 hPa52°F
46145 - Central Dixon Entrance Buoy 91 mi66 min 56°F 5 ft1012 hPa (-1.1)

Wind History for Ketchikan, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Metlakatla, Metlakatla Seaplane Base, AK16 mi70 minSE 410.00 miMostly Cloudy55°F46°F74%1011.9 hPa

Link to 5 minute data for PAMM

Wind History from AMM (wind in knots)
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Last 24hr3SE3S3S7SE33S5SE7SE6S6S4S8S7S6
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1 day agoSE3E3E3CalmCalmCalmE3S4E3CalmE3CalmSE7Calm5S6S10
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2 days agoW3CalmCalmW3W6CalmS3S3SW3S3CalmNW9CalmCalmNW8NW6NW3CalmSW3SW6SW8S5S5S4

Tide / Current Tables for Alava Bay, Alaska
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Alava Bay
Click for Map
Tue -- 04:55 AM AKDT     13.85 feet High Tide
Tue -- 06:31 AM AKDT     Sunrise
Tue -- 10:42 AM AKDT     2.41 feet Low Tide
Tue -- 01:56 PM AKDT     Moonrise
Tue -- 04:54 PM AKDT     15.83 feet High Tide
Tue -- 06:41 PM AKDT     Sunset
Tue -- 09:20 PM AKDT     Moonset
Tue -- 11:33 PM AKDT     -0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.73.87.510.813.113.812.910.67.64.72.82.53.86.59.812.915.115.814.812.28.751.90.2

Tide / Current Tables for Mary Island Anchorage, Revillagigedo Channel, Alaska
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Mary Island Anchorage
Click for Map
Tue -- 05:00 AM AKDT     14.05 feet High Tide
Tue -- 06:31 AM AKDT     Sunrise
Tue -- 10:38 AM AKDT     2.41 feet Low Tide
Tue -- 01:55 PM AKDT     Moonrise
Tue -- 04:59 PM AKDT     16.03 feet High Tide
Tue -- 06:41 PM AKDT     Sunset
Tue -- 09:22 PM AKDT     Moonset
Tue -- 11:29 PM AKDT     -0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.83.97.510.913.21413.210.87.74.72.82.53.96.59.81315.21615.112.58.951.90.2

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.