Sunday, May28, 2017 L-36.com


Marine Weather and Tides
Juneau, AK

Version 3.4
What's New / NOTES
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 4:02AMSunset 9:47PM Sunday May 28, 2017 8:29 AM AKDT (16:29 UTC) Moonrise 7:34AMMoonset 12:00AM Illumination 10% 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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PKZ032 Northern Chatham Strait- 807 Am Akdt Sun May 28 2017
Today..NW wind 10 kt early in the morning becoming light. Seas 2 ft or less.
Tonight..S wind 10 kt. Seas 2 ft or less.
Mon..S wind 10 kt. Seas 2 ft or less.
Mon night..NW wind 10 kt. Seas 2 ft or less.
Tue..Light winds. Seas 2 ft or less.
Wed..NE wind 10 kt becoming s. Seas 2 ft or less.
Thu..S wind 10 kt. Seas 2 ft or less.

7 Day Forecast for Marine Location Near Juneau, AK
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location: 58.07, -134.64     debug


Area Discussion for -
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Fxak67 pajk 281334
afdajk
southeast alaska forecast discussion
national weather service juneau ak
534 am akdt Sun may 28 2017

Short term Sunday through Monday warm high pressure aloft
extends from SE ak south through bc and western conus. Jetstream
winds from the south around 70 kts are centered over 140w and aimed
over yakutat bay and SW yukon territories. A weak trough embedded
in the southerly flow aloft brought light rain to cordova all
night but no precip observed at yakutat. Best chance for light
rain around yakutat will be this morning. Remainder of panhandle
will stay dry Sunday with varying amounts of high clouds.

Temperatures today will be quite similar to those on Saturday but
will depend on timing and amount of high cloud cover and the
inland extent of any sea breeze.

One possible situation to watch for could be an increased SE wind
into clarence strait this afternoon. Satellite imagery shows low
marine cloudiness moving north into queen charlotte sound along bc
coast. Surface pressure analysis indicates an area of high
pressure associated with that cloudiness moving north. Combined
with temperatures much warmer than normal today over the southern
inner channels, pressure gradients could jump up this afternoon
causing an increased SE wind. I adjusted speeds up some today but
still below small craft advisory criteria in clarence str. This
matches well with environment canadas forecast for E dixon
entrance.

For Monday the high pressure ridge aloft shifts farther east.

Cloudiness embedded in the s-sw winds aloft will also edge
farther east and cover more of the panhandle. This will knock
daytime temps down a few degrees. Chance of rain remains quite low
mon even around yakutat. Forecaster confidence in short term is at
or above ave.

Long term Monday night through Sunday upper ridge will remain
e of the area with upper low trof sliding E into the NE pac
through midweek, then remaining there into the weekend. Still some
model differences on individual shortwave features which makes for
a tricky forecast. Large scale pattern would keep a threat for
precip going over the area especially by midweek. Ended up
blending latest wpc guidance with previous which nudged up pops a
bit. Also, decreased diurnal temp range somewhat (lowered maxes
and raised mins) due to expected cloud cover and potential for
precip, mainly from Wed onward. Models that came out after wpc
came in suggest an even higher threat for precip for midweek into
the weekend, so later shifts may need to bump up pops even more.

None of the systems that will affect the area appear to be too
strong though the weekend, so would not expect more than sca
level winds with them.

Ajk watches warnings advisories
Public... None.

Marine... None.

Ta rwt
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
JNEA2 - 9452210 - Juneau, AK 20 mi42 min Calm G 1 48°F 44°F1019 hPa
SDIA2 - South Douglas, AK 20 mi40 min N 2.9 G 2.9 47°F 1018.3 hPa42°F
PRTA2 - Point Retreat, AK 29 mi80 min N 14 G 18 50°F 1017.5 hPa39°F
SISA2 - Sisters Island, AK 34 mi68 min Calm G 1 49°F

Wind History for Juneau, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Juneau, Juneau International Airport, AK22 mi37 minWSW 610.00 miOvercast50°F41°F71%1019 hPa

Wind History from AJN (wind in knots)
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Last 24hrW5SW9SW8SW9SW10SW12SW10SW9SW9SW9SW6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW6
1 day agoSW8SW10W9W8W7W10W8SW9W7W9SW8W8W5SE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoSE5E4NE4SE4E4CalmE5E8E3E4CalmW7NW3CalmN7NW3CalmCalmCalmNW4NW3W3W5W7

Tide / Current Tables for Hawk Inlet Entrance, Alaska
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Hawk Inlet Entrance
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Sun -- 03:13 AM AKDT     18.11 feet High Tide
Sun -- 04:10 AM AKDT     Sunrise
Sun -- 07:34 AM AKDT     Moonrise
Sun -- 09:47 AM AKDT     -4.20 feet Low Tide
Sun -- 04:16 PM AKDT     15.56 feet High Tide
Sun -- 09:43 PM AKDT     Sunset
Sun -- 10:03 PM AKDT     1.65 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.813.216.518.117.414.710.14.8-0.2-3.4-4.1-2.21.66.410.81415.515.112.99.45.72.81.72.6

Tide / Current Tables for Fritz Cove, Douglas Island, Alaska
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Fritz Cove
Click for Map
Sun -- 03:16 AM AKDT     18.97 feet High Tide
Sun -- 04:07 AM AKDT     Sunrise
Sun -- 07:32 AM AKDT     Moonrise
Sun -- 09:53 AM AKDT     -4.38 feet Low Tide
Sun -- 04:19 PM AKDT     16.25 feet High Tide
Sun -- 09:44 PM AKDT     Sunset
Sun -- 10:09 PM AKDT     1.59 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.813.517.118.918.415.6115.40.2-3.3-4.4-2.61.36.31114.416.115.813.610.16.231.62.4

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 (12,3,4,5)
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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.