Monday, August21, 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 5:34AMSunset 8:26PM Monday August 21, 2017 3:54 AM AKDT (11:54 UTC) Moonrise 4:29AMMoonset 7:39PM Illumination 1% 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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PKZ021 Icy Strait- 759 Pm Akdt Sun Aug 20 2017
Tonight..E wind 20 kt. Seas 4 ft. Rain.
Mon..E wind 15 kt. Seas 3 ft. Rain.
Mon night..E wind 15 kt. Seas 3 ft. Rain.
Tue..E wind 10 kt. Seas 2 ft or less. Rain.
Tue night..Light winds. Seas 2 ft or less.
Wed..Light winds. Seas 2 ft or less.
Thu..Light winds becoming W 10 kt. Seas 2 ft or less.
Fri..E wind 10 kt. Seas 2 ft or less.

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 202305
afdajk
southeast alaska forecast discussion
national weather service juneau ak
305 pm akdt Sun aug 20 2017

Synopsis An atmospheric river with abundant moisture from the
remnants of dissipated typhoon banyan will advect moisture across
the western gulf and panhandle with periods of rain occurring
through Monday.

Short term Through Tuesday morning... Showers will continue
moving across the panhandle this evening. An atmospheric river
will advect abundant moisture across the panhandle the next few
days advecting moisture from the remnants of dissipated typhoon
banyan across the region. Rain will continue with periods of
heavy rain occurring at times primarily across the souther areas
of the panhandle. Temperatures will remain cool with cloudy skies
and rain continuing across the panhandle. Winds will remain light
to moderate across inland areas.

Only minor changes have been made to the forecast. The nam, gfs,
and ECMWF are in good agreement for the forecast the next few
days.

Long term Tuesday through Sunday as of 10 pm Saturday the
extended forecast remains cool, wet, and fall-like. Tuesday begins
with a weather front moving across the panhandle. Periods of heavy
rain are expected on Tuesday within the southern panhandle due to
enhanced moisture directed at the area from the remnants of
tropical storm banyan. Models slowed the progression of the
heaviest band of precipitation slightly from yesterday, with total
rainfall between 0.5 to 1.5 inches forecasted Tuesday. Greatest
values are expected near ketchikan and annette island. The outer
coast and far northern panhandle will have much lower rainfall
totals with possible breaks in precipitation as the front pushes
to the southeast Tuesday.

Wednesday and Thursday will likely be characterized by remnant
scattered shower activity over the panhandle with a break in
preciptiation likely sometime Thursday. Late Thursday night
another weather front will begin to move across the panhandle
bringing a return to rain. This front will keep conditions wet
once again next weekend. The front's exact arrival time is still
an area of uncertainty, but between late Thursday night and Friday
morning is currently the most probable.

Not many significant changes were made to the extended forecast.

Tuesday's QPF values were increased due to being in agreement with
a slowing of the heaviest band of precipitation. Tuesday's
forecast was nudged toward the 00z NAM with wpc input being used
for Wednesday and beyond as needed.

Aviation Marginal flight conditions due to ceiling forecast
for the late afternoon and into the evening. Rain spreading to the
panhandle with system associated with the former typhoon banyan.

A low level jet near the coast will lead to low level turbulence
overnight for the coast and then will move to the inner channels
toward morning as it move to the clarence and then stephens.

Marine An early season gale will develop in marine zone 52 as
the second front approaches the central gulf coast tonight.

Elsewhere small craft seas to 8 feet and winds of 25 to 30 kt
will impact the outside waters for much of the next twenty- four
hours.

Hydrology Moisture from banyan's remnants (up to 3 plus
standard deviations above atmospheric normals of ivt) will begin
to spread across all sections of the panhandle overnight. But the
most concentrated area of heavy rains continues to be forecasted
for the southern panhandle, tonight into early Tuesday. Looking
for a minor break in the rainfall afternoon to early evening over
the southern with light rain totals. We expect significant rises
in streams beginning tonight and continuing into Tuesday. Special
weather statements cover heavy rain and significant rises on
rivers, streams, and lakes. Flooding is not expected, but we will
continue to evaluate threats through the event.

Ajk watches warnings advisories
Public... None.

Marine... Gale warning for pkz052.

Small craft advisory for pkz022-036-041>043-051.

Bm jwa
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BLTA2 - Bartlet Cove AK 1 mi89 min ENE 1.9 G 2.9 51°F
ELFA2 - 9452634 - Elfin Cove, AK 30 mi55 min 54°F 55°F1009 hPa (+0.7)
SISA2 - Sisters Island, AK 38 mi93 min ENE 13 G 23 57°F
CSPA2 - Cape Spencer, AK 44 mi45 min E 19 G 27 53°F 52°F
PRTA2 - Point Retreat, AK 49 mi45 min NNE 4.1 G 4.1 52°F 1008.2 hPa52°F

Wind History for Juneau, AK
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gustavus, Gustavus Airport, AK8 mi59 minN 010.00 miOvercast51°F51°F100%1009.8 hPa

Wind History from AGS (wind in knots)
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Last 24hrSE8SE6SE7SE6SE5SE3SE53CalmW43NW6NW4NW6N5NW8NW6W4NW4W3NW3NW4NW3Calm
1 day agoSE7SE6SE8SE9SE6SE9SE12SE10SE10SE15
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2 days agoCalmCalmCalmCalmSE3SE6SE5SE5CalmSE4--SW8S74SE6E5E5SE6E7E6SE8SE8SE7SE6

Tide / Current Tables for Bartlett Cove, Glacier Bay, Alaska
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Bartlett Cove
Click for Map
Mon -- 01:20 AM AKDT     17.01 feet High Tide
Mon -- 05:29 AM AKDT     Moonrise
Mon -- 05:39 AM AKDT     Sunrise
Mon -- 07:42 AM AKDT     -3.49 feet Low Tide
Mon -- 10:31 AM AKDT     New Moon
Mon -- 02:06 PM AKDT     15.82 feet High Tide
Mon -- 07:56 PM AKDT     0.15 feet Low Tide
Mon -- 08:32 PM AKDT     Sunset
Mon -- 08:39 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
15.216.916.5149.84.70.1-2.8-3.4-1.42.36.911.314.515.81512.28.34.21.20.21.44.68.7

Tide / Current Tables for Lemesurier Island Light, North Passage, Icy Strait, Alaska
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Lemesurier Island Light
Click for Map
Mon -- 12:49 AM AKDT     13.50 feet High Tide
Mon -- 05:30 AM AKDT     Moonrise
Mon -- 05:40 AM AKDT     Sunrise
Mon -- 07:31 AM AKDT     -2.05 feet Low Tide
Mon -- 10:31 AM AKDT     New Moon
Mon -- 01:51 PM AKDT     12.29 feet High Tide
Mon -- 07:40 PM AKDT     1.15 feet Low Tide
Mon -- 08:32 PM AKDT     Sunset
Mon -- 08:39 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
12.913.512.49.96.52.9-0.1-1.8-1.8-0.22.86.39.611.712.311.28.963.31.51.22.65.28.4

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 (7,2,3,4)
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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.