Sunday, October22, 2017 L-36.com


Marine Weather and Tides
Gustavus, 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 7:50AMSunset 5:33PM Sunday October 22, 2017 2:46 PM AKDT (22:46 UTC) Moonrise 10:01AMMoonset 6:24PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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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PKZ021 Icy Strait- 432 Am Akdt Sun Oct 22 2017
Today..NE wind 20 kt diminishing in the afternoon. Seas 4 ft. Showers.
Tonight..NW wind 15 kt becoming se late. Seas 3 ft.
Mon..E wind 20 kt. Seas 4 ft. Rain.
Mon night..W wind 15 kt. Seas 3 ft. Rain.
Tue..W wind 15 kt. Seas 3 ft.
Wed..W wind 20 kt. Seas 4 ft.
Thu..E wind 25 kt. Seas 5 ft.

7 Day Forecast for Marine Location Near Gustavus, AK
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location: 58.45, -135.88     debug


Area Discussion for -
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Fxak67 pajk 222238
afdajk
southeast alaska forecast discussion
national weather service juneau ak
238 pm akdt Sun oct 22 2017

Short term Through Tuesday night... A weakening gale force low
pressure system will move across the central panhandle this
afternoon and evening. Another gale force low will develop over
the eastern pacific and move northeast through the central
panhandle Monday afternoon and evening. These systems will
maintain cloudy skies and periods of rain and showers across the
panhandle the next few days. The cloudy skies and periods of rain
will maintain cool temperatures across the panhandle. The winds
will increase as the low pressure systems and associated frontal
boundaries advance across the gulf and inland across the
panhandle. Primarily used the NAM and ECMWF models for the short
term forecast which were in fairly good agreement.

Long term Tuesday through Sunday... As the surface low that is
expected to impact our area Monday exits east into canada, an
additional two surface lows are expected to develop, one over the
northern gulf and a second out of the south-central gulf. The low
to the north should quickly weaken and lift northeast into the
yukon territories of canada. The second low with a more southern
origin is expected to push east-northeast through the southern
portion of the panhandle and continue into british columbia,
canada. This system will also bring a more subtropical push of
moisture on Tuesday; precipitable water analysis shows some
anomalously high values with this system, so we're expecting a wet
event centered near the southern panhandle, as of right now. As
both of these features weaken, a ridge of high pressure will begin
to build over the eastern gulf Wednesday, with the ridge axis
stretching north to south just offshore of the panhandle. The
offshore flow with this ridge should provide a brief respite from
the precipitation that has been constant these last few days.

Winds are also expected to diminish across the panhandle briefly
with this ridge.

All models continue to point to a very wet event Thursday into
Friday of next week. The remnants of typhoon lan are expected to
wrap into a trough coming across the bering sea early this week,
with the moisture becoming embedded with the circulation.

Precipitable water analysis also indicates some anomalously high
amounts with this system. However, models still cannot agree as to
where the more significant precipitation amounts will fall in our
area.

Generally, there has not been a lot of model agreement as of late,
especially regarding the set up of surface level features. We
decided to lean more towards the ECMWF for the earlier long term,
mainly Tuesday through Thursday, as it has had more run to run
consistency and has performed better than other models with
current systems.

Aviation Variable conditions for the southern panhandle as
remaining bands of showers move eastward. As next low moves up
into the SE gulf the southern panhandle will experience strong
wind shear as 925 mb LLJ of 40-60kt moves in. Surface winds not
expected to be as strong due to wwa and low level inversion
limiting any mixing. Heavy rainfall will reduce visibilities to
near ifr conditions.

Ajk watches warnings advisories
Public... Strong wind Monday afternoon for akz027.

Marine... Gale warning for pkz041>043.

Small craft advisory for pkz012-013-022-031>036-052.

Small craft advisory due to seas for pkz051.

Bm voveris
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BLTA2 - Bartlet Cove AK 1 mi80 min N 4.1 G 6 45°F
ELFA2 - 9452634 - Elfin Cove, AK 30 mi47 min 45°F 51°F1002.1 hPa (+3.4)
SISA2 - Sisters Island, AK 38 mi85 min NE 8 G 11 45°F
CSPA2 - Cape Spencer, AK 44 mi37 min E 12 G 20 44°F 40°F
PRTA2 - Point Retreat, AK 49 mi37 min N 1.9 G 4.1 43°F 1000.6 hPa40°F

Wind History for Juneau, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gustavus, Gustavus Airport, AK8 mi51 minN 010.00 miOvercast44°F41°F89%1002.7 hPa

Wind History from AGS (wind in knots)
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Last 24hrW3N9N5NW3NW5N8N6N6NW9N5NW6NW7N7NW6NW8N5NW3NW4N4NW4N3N3NW3Calm
1 day agoCalmCalmCalmCalmSE6SE6SE7SE8CalmSE9SE12SE9SE11SE7S5CalmNW6NW5NW3NW6NW10NW8W5W3
2 days agoS8S5SE5S4CalmCalmNW3CalmN7NW6N5CalmCalmCalmCalmCalmE5SE3CalmCalmE7SW5E3SE8

Tide / Current Tables for Bartlett Cove, Glacier Bay, Alaska
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Bartlett Cove
Click for Map
Sun -- 03:31 AM AKDT     14.77 feet High Tide
Sun -- 07:56 AM AKDT     Sunrise
Sun -- 09:17 AM AKDT     1.93 feet Low Tide
Sun -- 11:00 AM AKDT     Moonrise
Sun -- 03:21 PM AKDT     15.87 feet High Tide
Sun -- 05:37 PM AKDT     Sunset
Sun -- 07:25 PM AKDT     Moonset
Sun -- 09:44 PM AKDT     -0.69 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.89.712.814.514.612.9106.53.522.44.6811.514.315.815.513.510.162.3-0.1-0.60.8

Tide / Current Tables for Lemesurier Island Light, North Passage, Icy Strait, Alaska
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Lemesurier Island Light
Click for Map
Sun -- 03:15 AM AKDT     12.02 feet High Tide
Sun -- 07:57 AM AKDT     Sunrise
Sun -- 08:59 AM AKDT     2.58 feet Low Tide
Sun -- 11:00 AM AKDT     Moonrise
Sun -- 02:54 PM AKDT     13.10 feet High Tide
Sun -- 05:38 PM AKDT     Sunset
Sun -- 07:26 PM AKDT     Moonset
Sun -- 09:34 PM AKDT     -0.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.58.610.91211.6107.65.13.32.63.35.27.910.612.513.112.310.27.24.21.60.1-01.3

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 (18,4,5,8)
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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.