Tuesday, January16, 2018 L-36.com


Marine Weather and Tides
Yakutat, AK

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 9:46AMSunset 4:34PM Tuesday January 16, 2018 11:10 AM PST (19:10 UTC) Moonrise 8:41AMMoonset 3:57PM Illumination 0% Phase: New Moon; Moon at 29 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- 335 Am Akst Tue Jan 16 2018
.small craft advisory due to seas through late tonight...
Today..NE wind 15 kt. Seas 11 ft, except 3 ft E side of the bay. S swell. Rain showers early in the morning.
Tonight..E wind 20 kt. Gusts to 35 kt. Seas 14 ft, except 4 ft E side of the bay. SE swell. Rain showers.
Wed..E wind 15 kt. Seas 11 ft, except 2 ft or less E side of the bay. SE swell.
Wed night..NE wind 15 kt. Seas 7 ft, except 2 ft or less E side of the bay. SE swell.
Thu..E wind 10 kt. Seas 8 ft.
Fri..E wind 10 kt. Seas 7 ft.
Sat..NE wind 10 kt. Seas 4 ft.

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


Area Discussion for -
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Fxak67 pajk 161502
afdajk
southeast alaska forecast discussion
national weather service juneau ak
602 am akst Tue jan 16 2018

Short term No substantial changes were made for the short-term
period- it is a tale of two lows. The first low will track across
the central gulf and its associated front will pass over the
panhandle late tonight. The second low will track northeastward
by Wednesday. Most of the short- term will remain warm and wet,
before transitioning to a drier period.

Minor changes were made to winds along the border and due to local
effects. A strong wind headline is in effect for sitka for this
afternoon, as winds are expected to pick up with the frontal
passage. Wind shear could play a factor in air travel today.

Winds along the outer coast will reach gale force and several
inland locations will be gusty throughout the day. A GFS nam blend
was used for pressure.

Most temperatures were within guidance, only needing to lower
maximum temperatures by a degree and minimum temperatures
decreased for tomorrow night. Maximum temperatures have increased
throughout the night, but will decrease with the cold front
coming in. Both sitka and annette airports had record high
temperatures in the 60s yesterday, surpassing records set in 1981.

Looking forward into the week, there will be a downward trend in
temperatures to near average values. 500 mb temperatures seem to
be about normal (-20c range) for the remainder of the short-term
period.

A blend of gfs, namdng, and SREF seemed to move the pop pattern
along faster and new QPF runs lowering the storm total QPF for the
today and tonight period. Snow does not seem to be a concern for
lower elevations this week.

Forecast confidence remains moderate at best for the timing and
location of these next two systems.

Long term Thursday through Tuesday as of 10 pm Monday
complicated flow pattern looks to be developing in the long range.

Higher latitudes will be transitioning to a blocky pattern with a
ridge over the bering sea, a trof over mainland ak, and another
weak ridge over NW canada by late week. Mid latitudes will be
somewhat progressive with many shortwaves passing E across the pac
toward the pac NW states. The interaction between the northern and
southern streams will be the tricky part of the forecast. Some
models suggest phasing of streams over the epac gulf of ak area
for late weekend and early next week, with other models keeping
streams separate.

Main adjustment for thu-fri was to shift a low that moves toward
the haida gwaii area in short range further S and to decrease
pops. Also, a cooling trend looks likely for much of the long term
period, but there are some model differences on how cold it will
get. Temps were tweaked down some based on trends. Did make some
wind tweaks through 00z Sun to show more low level ridging over
the gulf. Overall, due to the complicated flow pattern developing,
forecast confidence is well below average.

Ajk watches warnings advisories
Public... Strong wind until 3 pm akst this afternoon for akz023.

Marine... Gale warning for pkz041>043-051-052.

Small craft advisory for pkz021-022-032>036.

Small craft advisory due to seas for pkz053.

Ss rwt
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YATA2 - 9453220- Yakutat, AK 7 mi41 min 42°F998.7 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Yakutat, AK4 mi2.2 hrsESE 14 G 266.00 miLight Rain Fog/Mist45°F41°F87%997.6 hPa

Wind History from AYA (wind in knots)
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Last 24hrE5----NW4----N3E3--E6------NE4NE9--E4----E3E10
G18
E17
G26
E14
G26
E16
G25
1 day agoE11
G20
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G20
SE9
G20
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G28
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G23
--SE8--4--NW6--E18
G31
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G31
------SE17
G29
SE16
G26
E15
G31
E10
G24
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2 days agoNE9NE7E14
G23
NE8NE11--E8----E13
G21
E11
G23
--------E19
G27
E19
G33
----E20
G36
E24
G34
E19
G32
--E17
G27

Tide / Current Tables for Johnstone Passage, Yakutat Bay, Alaska
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Johnstone Passage
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Tue -- 01:07 AM AKST     8.88 feet High Tide
Tue -- 06:29 AM AKST     3.80 feet Low Tide
Tue -- 08:40 AM AKST     Moonrise
Tue -- 09:01 AM AKST     Sunrise
Tue -- 12:18 PM AKST     10.65 feet High Tide
Tue -- 03:56 PM AKST     Sunset
Tue -- 03:58 PM AKST     Moonset
Tue -- 05:18 PM AKST     New Moon
Tue -- 07:11 PM AKST     -0.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.38.98.57.564.73.93.94.86.48.29.810.610.49.174.52.10.3-0.5-0.11.33.55.8

Tide / Current Tables for Point Latouche, Yakutat Bay, Alaska
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Point Latouche
Click for Map
Tue -- 01:12 AM AKST     8.88 feet High Tide
Tue -- 06:29 AM AKST     3.52 feet Low Tide
Tue -- 08:42 AM AKST     Moonrise
Tue -- 09:03 AM AKST     Sunrise
Tue -- 12:23 PM AKST     10.65 feet High Tide
Tue -- 03:53 PM AKST     Sunset
Tue -- 03:55 PM AKST     Moonset
Tue -- 05:18 PM AKST     New Moon
Tue -- 07:11 PM AKST     -0.46 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.28.98.67.55.94.53.63.64.66.289.710.610.49.27.24.62.20.4-0.4-0.11.33.45.7

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for (14,3,4,5)
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Ground Weather Radar Station Biorka Is., AK
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weather_mapweather_map weather_map

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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 numerious 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.