Monday, May20, 2019 L-36.com


Marine Weather and Tides
Juneau, AK

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 4:18AMSunset 9:30PM Monday May 20, 2019 7:39 AM AKDT (15:39 UTC) Moonrise 11:45PMMoonset 5:55AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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- 405 Am Akdt Mon May 20 2019
Today..N wind 10 kt. Seas 2 ft or less.
Tonight..N wind 10 kt. Seas 2 ft or less.
Tue..NW wind 10 kt. Seas 2 ft or less.
Tue night..N wind 15 kt. Seas 3 ft.
Wed..W wind 10 kt. Seas 2 ft or less.
Thu..S wind 10 kt. Seas 2 ft or less.
Fri..SW wind 15 kt. Seas building to 3 ft.


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 201258
afdajk
southeast alaska forecast discussion
national weather service juneau ak
458 am akdt Mon may 20 2019

Short term As a front exits west from the northeast gulf and
showers end around yakutat, we strain our necks and look east across
the mountains to canada. The jet and its customary pacific
storminess speeds eastward well to the south along 50 n, leaving
us weak systems crawling northwestward across the bc interior.

Shortwave impulses will first drive an increase in shower activity
across the south today, and should be strong enough to spread
isolated to scattered showers across much of the panhandle
tonight. Greater instability over the hyder area and adjacent
southern coastal mountains this afternoon evening will support a
slight risk of thunderstorms in that region.

Warm air advection from the east will be noticeable across most of
the region today with high temperatures around 70 for the
northern inner channels and solid 60s across the rest of the area.

The only spot where we cooled temperatures was ketchikan where
thermal low pressure developing over the interior will help draw
in chillier air from hecate strait. Rain cooled air will also
help.

Tuesday, a low pushing into the western gulf will guide a surface
ridge of high pressure into the eastern gulf. Winds in the low
levels will back from offshore to onshore. Increasing stability
will press shower activity essentially back into the higher
elevations. Likewise, temperatures along the coast will begin to
cool, even as communities in the interior will still bake towards
70 once again. While we have a risk of thunderstorms across the
coast mountains, our confidence in thunderstorm development
Tuesday is not as strong as Monday.

Northwest winds will increase across the eastern gulf today and
likely remain around 25 kt through Tuesday (although late guidance
suggest these winds may weaken Tuesday) as the ridge nears the
thermal low pressure across the inner channels. In addition, we
bring cross sound and icy strait stronger this afternoon and
tonight. Otherwise winds through the channels will mainly be on
the lighter side.

Gfs lent support for most changes but there was strong model
agreement across the spectrum of solutions. Forecast confidence
is average for shower placement but stronger for temperatures and
winds particularly through Monday night.

Long term Wednesday through Monday as of 9 pm Sunday a
deepening trough aloft along 170 west will build up the ridge over
the eastern gulf of alaska Wednesday. This looks to hold on to
the weekend, and then maybe forced eastward by the energy moving
through the trough to the west of it trying to get into the
western gulf.

Early Wednesday models are suggesting that a moderately strong low
around 985 mb will move to southwest of kodiak island and the
associated frontal band will spread into the central panhandle. It
should struggle against the ridge in place there and should fall
apart just along the northeast gulf and and the northern coastal
areas Thursday. As the front and low dissipate during the day,
high pressure will rebuild again over the gulf and the
precipitation should end by Friday morning across the panhandle.

Later periods of the forecast still struggling with whether the
ridge will give way or hang on for a day or two longer. Model bias
has a tendency to have the ridges being moved off faster than they
should.

Most of the work done was in the Wednesday-early Thursday time
frame handling the frontal band moving to the coast by Thursday.

The GFS was the main guidance for the winds and to an extent the
pop field. Used primarily wpc for the ensemble approach for next
weekend.

Ajk watches warnings advisories
Public... None.

Marine... Small craft advisory for pkz022-042-043-051-052.

Small craft advisory due to seas for pkz041.

Jwa bezenek
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SCXA2 9 mi26 min W 9.9 G 14 51°F 1004.5 hPa48°F
AJXA2 20 mi27 min NW 26 G 31 47°F 1006 hPa40°F
PTLA2 20 mi27 min WNW 7 G 9.9 50°F 1006.3 hPa48°F
JMLA2 20 mi27 min W 17 G 23 48°F 1006.3 hPa45°F
JNEA2 - 9452210 - Juneau, AK 20 mi45 min NNW 2.9 G 5.1 49°F 45°F1007.3 hPa
SDIA2 - South Douglas, AK 20 mi31 min N 12 G 14 50°F 1006.4 hPa48°F
MVXA2 20 mi27 min SE 1 G 2.9 52°F 1007.7 hPa43°F
MXXA2 20 mi26 min W 21 G 28 49°F 1006.5 hPa44°F
JLXA2 20 mi26 min WSW 1.9 G 8 49°F 1005.9 hPa40°F
NKXA2 21 mi26 min ESE 7 G 12 46°F 1005.8 hPa44°F
MRNA2 22 mi27 min NW 4.1 G 7 53°F 1007.3 hPa45°F
RIXA2 23 mi26 min SW 9.9 G 14 43°F 1008 hPa
PAXA2 25 mi26 min WNW 4.1 G 9.9 52°F 1004.7 hPa
PBPA2 - Point Bishop, AK 28 mi29 min SSE 1 G 4.1 52°F 1006.2 hPa46°F
PRTA2 - Point Retreat, AK 29 mi29 min WSW 6 G 8.9 49°F 1006.1 hPa48°F
SISA2 - Sisters Island, AK 34 mi77 min W 8 G 9.9 48°F
TKEA2 - Tenakee Springs, AK 37 mi27 min WNW 6 G 8.9 51°F 1006.9 hPa45°F
LIXA2 39 mi27 min N 7 G 13 48°F 1007.3 hPa41°F

Wind History for Juneau, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Juneau, Juneau International Airport, AK22 mi46 minN 010.00 miMostly Cloudy50°F46°F89%1007.7 hPa

Wind History from AJN (wind in knots)
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Last 24hrCalmCalmSW6SW7SW7SW7W6SW8W6E6W8NW9NW7SW6CalmW3CalmCalmCalmCalmCalmW4CalmCalm
1 day agoE65W6S3SE11
G16
SE9E65E4W9SW6W7SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoSE12SE13SE15SE17
G21
E11SE11SE13SE11E8E7W7W7W4SW4CalmE3NE6CalmE8E9E6E4E5SE4

Tide / Current Tables for Hawk Inlet Entrance, Alaska
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Fritz Cove, Douglas Island, Alaska
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Fritz Cove
Click for Map
Mon -- 02:26 AM AKDT     18.19 feet High Tide
Mon -- 04:22 AM AKDT     Sunrise
Mon -- 05:53 AM AKDT     Moonset
Mon -- 09:00 AM AKDT     -3.30 feet Low Tide
Mon -- 03:23 PM AKDT     15.76 feet High Tide
Mon -- 09:05 PM AKDT     1.93 feet Low Tide
Mon -- 09:29 PM AKDT     Sunset
Mon -- 11:45 PM AKDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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12.4161817.815.511.46.31.4-2.1-3.3-21.35.810.313.815.615.413.39.96.23.21.92.95.7

Weather Map and Satellite Images
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wmap_P
GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (11,2,3,4)
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Ground Weather Radar Station Biorka Is., AK
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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.