Thursday, June29, 2017 L-36.com


Marine Weather and Tides
Sitka and, 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 3:53AMSunset 10:09PM Thursday June 29, 2017 7:43 AM AKDT (15:43 UTC) Moonrise 10:43AMMoonset 11:49PM Illumination 30% 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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PKZ032 Northern Chatham Strait- 346 Am Akdt Thu Jun 29 2017
Today..S wind 10 kt. Seas 2 ft or less.
Tonight..S wind 10 kt. Seas 2 ft or less.
Fri..S wind 10 kt. Seas 2 ft or less. Rain.
Fri night..S wind 10 kt. Seas 2 ft or less. Rain.
Sat..S wind 10 kt. Seas 2 ft or less.
Sun..S wind 15 kt. Seas 3 ft.
Mon..S wind 15 kt. Seas 3 ft.

7 Day Forecast for Marine Location Near Sitka and , AK
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location: 57.04, -135.39     debug


Area Discussion for -
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Fxak67 pajk 291359
afdajk
southeast alaska forecast discussion
national weather service juneau ak
559 am akdt Thu jun 29 2017

Short term A busy weather pattern is upon us with a mid to
upper level warm front pushing its way over the northern panhandle
this morning. The low center in the western gulf and its
associated front will start to influence the eastern gulf tonight.

Friday will bring a short wave along the front that will enhance
the rain to that could be heavy at times Friday afternoon and
evening.

The NAM was the front runner for timing and placement of the
precipitation. It slowed the advancement on Friday to the
overnight hours, so nudge the inherited forecast using the nam.

Cloud coverage remains about the same with cloudy skies
dominating. There is a sliver of hope for some sunny breaks
this afternoon for the central and northern panhandle, east of dry
bay.

For wind and pressure issues the NAM and ECMWF showed good
agreement and initialized well. Adjusted winds in northern lynn
canal to be a bit less this morning, but increased them for the
afternoon behind the mid to upper level warm front. Winds and
pressure changes where minimal elsewhere. Winds on the western
side of marine zone 52 will be approaching gale warning this
afternoon, but opted to keep them at sca.

With a long fetch from the north pacific into the gulf, the sea
state will build to 9 to 12 feet spreading across the gulf through
Friday.

Long term Saturday through Thursday... As of 1030 pm wed... A
shortwave originating from a parent upper-level low in the gulf
will begin to move east across the panhandle beginning early
Saturday. Precipitation will be ongoing Saturday along a
strengthening front moving onshore and is expected to continue
into Monday with greatest pop values and highest QPF over the
central and southern zones. We increased QPF values for late
Saturday into Sunday and bumped up the pops using an SREF ensemble
blend. For the beginning of next week, QPF was blended using gfs
and then blended with wpc for the later part of the time period.

We also continue to see multiple shortwaves will then continue to
impact the area into the through next week.

Ajk watches warnings advisories
Public... None.

Marine... Small craft advisory for pkz022-041>043-051-052.

Kv fritsch voveris
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ITKA2 3 mi44 min 54°F 53°F1018.5 hPa (+0.0)
PLXA2 - 9451054 - Port Alexander, AK 67 mi44 min Calm G 0 52°F 50°F1019.5 hPa (+0.0)
ELFA2 - 9452634 - Elfin Cove, AK 94 mi44 min 49°F 52°F1019 hPa (-0.7)

Wind History for Port Alexander, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sitka - Sitka Airport, AK3 mi51 minN 010.00 miMostly Cloudy54°F50°F87%1018.4 hPa

Wind History from ASI (wind in knots)
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Last 24hrW3W5CalmCalmS3W9SW7W7SW7SW8W5SW5W4SW6SW3CalmCalmCalmCalmE3CalmW3E3Calm
1 day agoW4W8W5SW6W5SW4CalmSW6SW7SW9W5NW4CalmN4NE3E4E4E3E4NE3CalmE3CalmCalm
2 days agoW6W7SW6W6W9W13W15W13NW10W9W12W13W12W10W8NW6NW5NW3W6W7NW7NW6NW4NW3

Tide / Current Tables for Dog Point, Lisianski Peninsula, Sitka Sound, Alaska
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Dog Point
Click for Map
Thu -- 12:29 AM AKDT     Moonset
Thu -- 04:09 AM AKDT     Sunrise
Thu -- 05:06 AM AKDT     8.87 feet High Tide
Thu -- 11:42 AM AKDT     Moonrise
Thu -- 11:43 AM AKDT     -0.43 feet Low Tide
Thu -- 06:18 PM AKDT     9.12 feet High Tide
Thu -- 10:00 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.53.55.16.98.38.98.57.25.231.1-0.2-0.40.52.24.46.68.39.18.97.96.34.63.2

Tide / Current Tables for Olga Point, Olga Strait, Sitka Sound, Alaska
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Olga Point
Click for Map
Thu -- 12:30 AM AKDT     Moonset
Thu -- 04:09 AM AKDT     Sunrise
Thu -- 05:10 AM AKDT     8.77 feet High Tide
Thu -- 11:42 AM AKDT     Moonrise
Thu -- 11:57 AM AKDT     -0.43 feet Low Tide
Thu -- 06:22 PM AKDT     9.02 feet High Tide
Thu -- 10:01 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.43.24.86.68.18.78.57.35.43.31.40-0.40.21.846.288.98.97.96.54.83.4

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 (11,2,3,4)
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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.