Sunday, April30, 2017 L-36.com


Marine Weather and Tides
Excursion Inlet, AK

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 4:59AMSunset 8:49PM Sunday April 30, 2017 6:56 AM AKDT (14:56 UTC) Moonrise 8:46AMMoonset 1:00AM Illumination 21% Phase: Waxing Crescent; Moon at 5 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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PKZ013 Southern Lynn Canal- 337 Am Akdt Sun Apr 30 2017
Today..S wind increasing to 15 kt. Seas building to 3 ft.
Tonight..S wind 20 kt. Gusts to 35 kt late. Seas 4 ft. Rain.
Mon..S wind 25 kt. Seas 5 ft. Rain.
Mon night..S wind 20 kt. Seas 4 ft. Rain.
Tue..N wind 15 kt. Seas 3 ft.
Wed..N wind 20 kt becoming s. Seas 4 ft.
Thu..S wind 15 kt. Seas 3 ft.

7 Day Forecast for Marine Location Near Excursion Inlet CDP, AK
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location: 58.42, -134.88     debug


Area Discussion for -
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Fxak67 pajk 301257
afdajk
southeast alaska forecast discussion
national weather service juneau ak
457 am akdt Sun apr 30 2017

Synopsis One low moving into bc early this morning with another
front moving into the W gulf. Fair weather under the shortwave
ridge will be brief as precip moves into the N gulf coast late
this morning and progresses e. Deep onshore flow will bring a
series of storms to SE ak through the week.

Short term Sunday through Mon night... Surface analysis and
satellite imagery depict an low moving inland near prince rupert
and another low over the aleutians pushing a front into the w
gulf. A brief period of dry wx to begin Sun as shortwave ridge
moves across the panhandle between the two systems. The front will
bring precip to akz017 late this morning the spread E this
afternoon and evening. This marks the beginning of a pattern
change with deep moist onshore flow becoming dominant across the
region. Strongest winds early this morning over dixon entrance
will diminish quickly as the low moves inland and weakens. Wly winds
over the gulf this morning will begin to veer to the SE and
increase this afternoon and evening in response to the front
moving across the waters. Expect advisory level winds to develop
over pkz052 late tonight and expand E early mon. Winds over the
inner channels will be 15 to 20 kt in many places Mon and
the north gulf coast barrier jet will reach 30 kt as well.

Inherited forecast represented this well and made minor changes
to reflect current conditions/trends with gfs/ec favored solutions
for guidance through the period.

Long term /Tuesday through Sunday night/ As of 1030 pm
Saturday night the models have come to a more consistent
agreement, used the GFS in the mid range through Wednesday with a
gradual increase to using wpc reaching 100 percent by the weekend.

Focused most of my time to the mid week with the gale force
system moving into the gulf Tuesday from the south. The area of
strongest winds will track north and spread across much of the
eastern gulf by Tuesday afternoon with 45 kt gales. There will be
a small break between the first system and the next as it follows
a similar track into the southern gulf. The second system is
slightly weaker but is still expected to bring gales the
southwestern half of marine zone 310 up to the fairweather grounds
and marine zone 52, well offshore of yakutat. The first system
will give a glancing blow to the outer coastal areas of prince of
wales and southern baranof island Tuesday afternoon and evening.

Confidence of strong winds in these areas is increasing with
better model agreement. GFS shows good position of this system,
although it is one of the strongest. Wind speeds where reduced to
accommodate for that. With an easterly flow returning there will
also be increased winds near the cross sound area. The northeast
gulf coast will feel the strongest affects of the first system
late Tuesday night as the system moves quickly north northeast. By
Thursday winds will have diminished to 15-20 kt across the entire
area, it doesn't last long as small craft advisory teases marine
zone 41 Friday evening and then another system moves into the gulf
Sunday.

The precipitation is paired closely with the timing of the winds
with wet weather Tuesday and Wednesday moving up across the
panhandle. The wet pattern holds in place through Thursday and
then starts to erode from the northwest. Drier trend for the
weather for the weekend but the question is how dry. Wpc keeps a
chance of rain.

Ajk watches/warnings/advisories
Public... None.

Marine... Small craft advisory for pkz052.

Bc/kv
visit us at http://

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRTA2 - Point Retreat, AK 4 mi46 min SE 2.9 G 7 44°F 1010.3 hPa36°F
JNEA2 - 9452210 - Juneau, AK 26 mi44 min ESE 1.9 G 2.9 40°F 42°F1012.8 hPa
SDIA2 - South Douglas, AK 28 mi26 min Calm G 1 40°F 1011.9 hPa39°F

Wind History for Juneau, AK
(wind in knots)    EDIT      (on/off)   Help
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SE8
G12
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G15
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E5
G12
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G12
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G21
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G15
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G12
E7
G12
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G13
E8
G16
SE8
G13

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Juneau, Juneau International Airport, AK16 mi63 minENE 610.00 miMostly Cloudy40°F36°F86%1012.1 hPa

Wind History from AJN (wind in knots)
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Last 24hrCalmSW3CalmW3SW9SW7SW9SW12SW12SW9W10W7SW8W9CalmCalmE6CalmE5NE3CalmE3CalmE6
1 day agoE6E10
G16
SE14SE15SE15SE14SE11SE14SE15E12E11E8N5E9E6NE6CalmNE4E6NE4CalmCalmCalmCalm
2 days agoSE14E15SE17
G24
E15SE18
G22
SE19
G26
SE18SE19SE16SE19
G26
E18E18SE26
G31
E22
G30
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G25
E16
G25
E14
G20
E12
G23
SE15SE13SE11
G19
SE7E5E4

Tide / Current Tables for Barlow Cove, Mansfield Peninsula, Lynn Canal, Alaska
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Barlow Cove
Click for Map
Sun -- 12:59 AM AKDT     Moonset
Sun -- 04:16 AM AKDT     17.46 feet High Tide
Sun -- 05:06 AM AKDT     Sunrise
Sun -- 08:47 AM AKDT     Moonrise
Sun -- 10:50 AM AKDT     -2.57 feet Low Tide
Sun -- 05:18 PM AKDT     14.73 feet High Tide
Sun -- 08:47 PM AKDT     Sunset
Sun -- 11:08 PM AKDT     2.78 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.88.712.715.917.416.914.510.55.71.2-1.7-2.5-12.36.510.413.314.614.312.59.66.43.92.8

Tide / Current Tables for Lincoln Island, Lynn Canal, Alaska
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Lincoln Island
Click for Map
Sun -- 01:00 AM AKDT     Moonset
Sun -- 04:17 AM AKDT     17.82 feet High Tide
Sun -- 05:06 AM AKDT     Sunrise
Sun -- 08:46 AM AKDT     Moonrise
Sun -- 10:52 AM AKDT     -2.60 feet Low Tide
Sun -- 05:19 PM AKDT     15.04 feet High Tide
Sun -- 08:48 PM AKDT     Sunset
Sun -- 11:10 PM AKDT     2.81 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.88.812.916.217.717.314.910.85.91.4-1.7-2.6-1.12.36.610.613.514.914.712.89.96.642.8

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 (10,2,3,4)
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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.