Sunday, March29, 2020
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Marine Weather and Tides
Yakutat, 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 7:28AMSunset 8:41PM Sunday March 29, 2020 8:35 PM PDT (03:35 UTC) Moonrise 7:47AMMoonset 12:16AM Illumination 35% 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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PKZ053 Yakutat Bay- 249 Pm Akdt Sun Mar 29 2020
.small craft advisory through Monday...
Tonight..NE wind 30 kt. Gusts to 45 kt out of disenchantment bay. Seas 6 ft. Freezing spray.
Mon..NE wind 25 kt. Seas 5 ft. Freezing spray in the morning.
Mon night..NE wind 20 kt. Seas 4 ft.
Tue..E wind 10 kt. Seas 2 ft or less.
Tue night..E wind 10 kt. Seas 2 ft or less.
Wed..Light winds becoming ne 10 kt. Seas building to 3 ft.
Thu..NE wind 10 kt. Seas 4 ft.
Fri..E wind 10 kt. Seas 3 ft.


7 Day Forecast for Marine Location Near Yakutat CDP, AK
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location: 59.56, -139.61     debug


Area Discussion for -
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FXAK67 PAJK 292245 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 245 PM AKDT Sun Mar 29 2020

SHORT TERM. /Through Tue night/ The panhandle is showing two different faces today depending on where you are. First the southern panhandle is dealing with periods of rain and snow as far north as Kake and Angoon (accumulations have been only a few inches at most), and some breezy SE winds in some areas (Ketchikan gusting as high as 27 kt). This is due to a low west of the southern coast that is spreading a frontal band across the southern panhandle. The low and front are expected to gradually move to the SE over the next 24 hours taking the precip with it (any additional snow accumulations expected to be around an inch at most). Definite precip expected south of Sumner Strait through tonight with chance pops lingering into Monday before it moves completely out by Mon evening.

The other face is the strong cold northerly outflow occurring across the northern panhandle. Gale force winds are blowing through a majority of the northern inner channels this afternoon and are just expected to strengthen later tonight as the Yukon high strengthens and the SE gulf low continues its slow SE retreat. Pressure gradients across the northern coast mountain range forecast to reach into the 10 to 20 mb range late tonight so gales are expected to continue with even storm force winds likely for Lynn Canal late tonight. For land areas, gusty winds are also expected around Skagway, near Lynn Canal, and near other outflow areas across the north. The winds combined with the cold air will bring wind chills down to -30 at White Pass tonight (a wind chill advisory has been issued for this tonight). A significant Taku wind event is also expected for the Downtown Juneau and Douglas area tonight into tomorrow as strong cross barrier flow combined with an inversion and critical level will cause wind gusts in excess of 70 mph. A high wind warning has replaced the watch that was out until 4 pm Monday.

All of these winds are expected to remain strong through Monday. At that point two things will start to allow the winds to diminish. The first is the continued SE retreat of the low in the gulf through the next 48 hours. The second is the Yukon high will gradually shift into northern BC by Tue afternoon and spread its influence into the Panhandle and northern gulf. This will lower pressure gradients across the region allowing winds to gradually diminish into Tuesday night (though E-W channels may see some increase in winds by Tue due to the this. Though not to the extreme that the northerly winds are blowing right now).

Guidance generally in good agreement. Most forecast changes dealt with local wind effects and the slow retreat of the precip across the southern half of the panhandle today. Nam and Namnest were the favored guidance.


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 Warning until 4 PM AKDT Monday for Akz024. Strong Wind through Monday afternoon for Akz017-019. Strong Wind through Monday afternoon for Akz024. Wind Chill Advisory from 8 PM this evening to 10 AM AKDT Monday for Akz017. MARINE . Heavy Freezing Spray Warning for PKZ011-012. Storm Warning for PKZ012-013. Gale Warning for PKZ021-022-031>034-041>043-051. Small Craft Advisory for PKZ011-035-036-052-053.



EAL/Bezenek

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YATA2 - 9453220- Yakutat, AK 7 mi54 min 41°F1003.7 hPa

Airport Reports
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Tide / Current Tables for
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Weather Map
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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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (23,6,7,8)
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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.