Sunday, March29, 2020
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Marine Weather and Tides
Mud Bay, 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 6:28AMSunset 7:35PM Sunday March 29, 2020 10:41 AM AKDT (18:41 UTC) Moonrise 7:32AMMoonset 12:00AM Illumination 31% Phase: Waxing Crescent; Moon at 6 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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PKZ012 Northern Lynn Canal- 438 Am Akdt Sun Mar 29 2020
.storm warning this evening through late tonight...
.heavy freezing spray warning late tonight...
Today..NW wind 30 kt becoming N 40 kt in the afternoon. Seas 8 ft.
Tonight..N wind 55 kt. Gusts to 70 kt. Seas 11 ft. Heavy freezing spray late.
Mon..N storm force wind to 50 kt diminishing to gale 40 kt in the afternoon. Seas 9 ft. Freezing spray in the morning.
Mon night..N gale to 35 kt. Gusts to 55 kt. Seas 7 ft. Freezing spray.
Tue..N wind 15 kt. Seas 4 ft.
Wed..NW wind 15 kt. Seas 3 ft.
Thu..N wind 15 kt. Seas 4 ft.


7 Day Forecast for Marine Location Near Mud Bay, AK
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location: 59.17, -135.4     debug


Area Discussion for -
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FXAK67 PAJK 291413 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 613 AM AKDT Sun Mar 29 2020

SHORT TERM. A surface low is currently situated over the Gulf this morning providing light snow showers across the southern panhandle. A surface high is located over NW Canada causing pressure gradients to tighten to the north as the low pushes closer to the coast and cold air advection increase. Today's main focus will be on strong northerly outflow winds and a mnt wave potential for the Juneau area. Added Strong Wind headlines for Skagway, Haines, Pelican Cove, and Juneau where gusts over 40 mph are likely. The strongest winds are expected to occur late tonight through early Monday morning as the pressure gradient will be the strongest during this time frame. Gale force winds in Lynn Canal will increase through the day reaching Storm Force by tonight. Gales are also expected to flow all the way down through Chatham Strait. As the outflow winds increase, Gale force plumes will blow off the coast through interior gap passes along the Gulf Coast.

Conditions look favorable for Taku winds to impact the Juneau/Douglas area. Cross barrier flow is strong and an inversion will be set up over the ridge. A critical level will also set up during this time frame aiding in the likely of a mtn wave. With this, a High Wind Watch is in effect from this evening through Monday afternoon. Winds of 25 to 30 mph are expected with gusts up to 60 mph possible. This potential will be monitored as new observations and model guidance arrives.

As the low continues to track SE away from the panhandle and outflow winds blow, conditions will begin to dry out and cool down. By Monday night, winds will be on the decrease and precip chances will have dissipated. Temperatures will have cooled drastically by this point as cold arctic air will have been funneling into the Panhandle during the outflow event. Expect high temps in the mid 20s for the central and northern panhandle and upper 30s for the southern half. This will make way for a pleasant but cold Tuesday.

LONG TERM. /Tuesday through Sunday as of 9 pm/ . The long range portion of the forecast for Southeast Alaska will be dominated by a pair of blocking features. The first is an omega block that is positioned over the west coast of Alaska. The eastern low of the omega block is over the southern Gulf of Alaska. The associated flow The upper level high portion of the omega moves over to the Canadian Arctic waters north of the McKenzie delta. This repositioning of the high heights in omega into a split flow pattern mid to upper level flow over Southwest Alaska still leaves the southeast panhandle out of any direct flow pattern to the end of the week.

As a result there is no significant weather system for the panhandle for the end of the week and headed into the weekend. Overall it looks to be dry forecast from midweek onward.

Computer models struggle with blocking ridges, mainly with respect to timing of the blocking ridge break down or shift in location and how upstream waves will react. This pattern seems to be no different due to the fact model spread is rather large as early as Tuesday evening. Continued to use a blend of GFS/ECMWF for Tuesday with a transition to WPC for rest of the week. Forecast confidence is moderate to high, although with low, expect changes.

AJK Watches/Warnings/Advisories. PUBLIC . High Wind Watch from this evening through Monday afternoon for AKZ025. Strong Wind through this evening for AKZ025. Strong Wind through late tonight for AKZ018-019-022. Wind Chill Advisory until 9 AM AKDT this morning for AKZ018. MARINE . Heavy Freezing Spray Warning for PKZ012. Storm Warning for PKZ012. Gale Warning for PKZ011-013-021-022-031>033-041>043-051. Small Craft Advisory for PKZ034>036-052-053.



CC/Bezenek

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HAXA2 5 mi40 min N 12 G 28 21°F 1010.4 hPa-7°F
EROA2 - Eldred Rock, AK 17 mi78 min N 34 G 45 23°F 1008.6 hPa3°F
ERXA2 17 mi40 min N 40 G 48 22°F 1003.6 hPa4°F
SKTA2 - 9452400 - Skagway, AK 20 mi60 min 20°F 39°F1013.2 hPa
SKXA2 20 mi39 min NNW 29 G 51 17°F 1013.1 hPa-3°F
LIXA2 47 mi40 min N 35 G 48 25°F 1002.3 hPa12°F
BLTA2 - Bartlet Cove AK 56 mi76 min NE 12 G 15 26°F

Wind History for Juneau, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Haines - Haines Airport, AK8 mi1.8 hrsVar 6 G 1710.00 miFair22°F-2°F33%1011 hPa
Skagway, AK22 mi49 minNNE 20 G 3010.00 miOvercast and Breezy20°F-6°F31%1013.4 hPa

Link to 5 minute data for PAHN

Wind History from AHN (wind in knots)
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CalmNW7NW7W7W11W96W56--SW7
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2 days agoW8CalmCalmSE5SE6SE7E7SE7E4E5E4CalmNW3NW6CalmNW5CalmE45CalmW5W5W7Calm

Tide / Current Tables for Pyramid Harbor, Chilkat Inlet, Lynn Canal, Alaska
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Pyramid Harbor
Click for Map
Sun -- 12:57 AM AKDT     Moonset
Sun -- 04:11 AM AKDT     15.58 feet High Tide
Sun -- 06:34 AM AKDT     Sunrise
Sun -- 08:32 AM AKDT     Moonrise
Sun -- 10:43 AM AKDT     0.43 feet Low Tide
Sun -- 04:54 PM AKDT     13.19 feet High Tide
Sun -- 07:39 PM AKDT     Sunset
Sun -- 10:40 PM AKDT     3.70 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.58.71214.515.615.113.19.96.330.90.51.84.57.710.712.613.212.410.585.643.8

Tide / Current Tables for Skagway, Alaska (2)
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Skagway
Click for Map
Sun -- 12:58 AM AKDT     Moonset
Sun -- 04:25 AM AKDT     15.98 feet High Tide
Sun -- 06:34 AM AKDT     Sunrise
Sun -- 08:29 AM AKDT     Moonrise
Sun -- 10:58 AM AKDT     0.63 feet Low Tide
Sun -- 05:08 PM AKDT     13.59 feet High Tide
Sun -- 07:39 PM AKDT     Sunset
Sun -- 10:55 PM AKDT     3.90 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.18.211.614.315.815.71411.17.541.50.61.647.310.412.613.613.111.48.96.44.53.9

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 (14,3,4,5)
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Ground Weather Radar Station Biorka Is., AK
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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.