Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Juneau, 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 6:27AMSunset 7:36PM Wednesday March 29, 2017 7:09 AM AKDT (15:09 UTC) Moonrise 7:40AMMoonset 10:03PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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- 432 Am Akdt Wed Mar 29 2017
Today..S wind 15 kt. Seas 4 ft. Rain showers.
Tonight..S wind 15 kt. Seas 3 ft.
Thu..S wind 20 kt. Seas 4 ft. Rain in the afternoon.
Thu night..SE wind 30 kt. Seas 6 ft. Rain and snow.
Fri..SE wind 30 kt becoming S 20 kt. Seas 5 ft.
Sat..S wind 20 kt. Seas 4 ft.
Sun..S wind 15 kt. Seas 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 290707
afdajk
southeast alaska forecast discussion
national weather service juneau ak
1107 pm akdt Tue mar 28 2017

Update Extend forecast periods were updated and published. The
longer range discussion was updated below.

Short term Issued at 411 pm Tue ... /tonight through Thursday/
upper level flow will remain swly and onshore through Wednesday
with weak impulses moving across the area. At the surface, a low
will approach the pws area from the south. A frontal trough assoc
with this low will increase the threat of showers through the
night, especially across the northern half of the panhandle. Some
breaks over the south could induce some patchy fog tomorrow
morning. More bands of showers continue through Wednesday. Some
snow will likely mix in during the overnight period into the early
mornings, but little to no accumulation is expected.

An upper level and surface ridge of high pressure will build over
the eastern gulf Wednesday night then shift east over the
panhandle through Thursday afternoon. Showers will diminish during
this time as a result.

On Thursday a stronger system looks to move across the gulf SW to
ne. Expect winds over the outside waters to increase to gale
force through the afternoon. As the front moves into the
panhandle in the evening expect areas along the outer coast to
have some gusty winds as well, likely up to 40mph. This looks to
be a warm system with a long fetch of moisture from the s-sw.

Expect most of the precip to fall as rain, likely heavy at times,
but again some snow could be mixed in at the start of the event
depending on when the precip moves in. This will be looked at with
greater detail over the next 2 days.

Used mainly the GFS and NAM for updates today. Overall, models
were in good agreement and forecast confidence is average to above
average.

Long term / Friday to Wednesday / the 500 mb level flow from
Friday onward with wpc and 00z GFS and 12 ec solution had moderate
to good agreement on the trough and short waves along with the
upper level ridges. A ridge from bc south to off the coast of the
pacific northwest is suppressed over the weekend but will rebuild
early next week.

Temperatures from Thursday into Friday were warmed slightly which
means less of chance of snow in the northern panhandle. For the weekend
southeast alaska is dealing with the remains of a stronger system
from Thursday, and a trailing trough that will move over the
panhandle. There may be small decrease in the rains or possibly
mixed showers on Monday. Better chances of rain later Monday to
the end of the with the next system.

It looks like their will be some minor cooling Saturday and
Sunday, though into the early part of next the longer range
solutions think that a large scale system will move in the gulf,
assisting the ridge to rebuild along the coast will likely help to
warm temperatures over southeast alaska the later half of next
week, as well as more rains across the region.

Confidence is average for the forecast into the later periods.

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

Marine... Small craft advisory for pkz042-043-051-052.

Small craft advisory due to seas for pkz022-041-053.

Ferrin/bezenek
visit us at http://

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDIA2 - South Douglas, AK 20 mi40 min S 4.1 G 4.1 39°F 1008.1 hPa38°F
JNEA2 - 9452210 - Juneau, AK 20 mi58 min SE 5.1 G 6 39°F 1008.7 hPa
PBPA2 - Point Bishop, AK 28 mi60 min N 5.1 G 7 1008.1 hPa
PRTA2 - Point Retreat, AK 29 mi60 min ESE 2.9 G 6 39°F 1006 hPa38°F
SISA2 - Sisters Island, AK 34 mi108 min E 12 G 15 40°F

Wind History for Juneau, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Juneau, Juneau International Airport, AK22 mi17 minE 98.00 miLight Rain38°F37°F100%1008 hPa

Wind History from AJN (wind in knots)
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Last 24hrNE3CalmE8E7SE9E8E5SW7SW5NE4E3E4E5E9E8E10E7E9E9E7E8E7E9E9
1 day agoCalmE6W4CalmSW4SE5CalmW5SE17E12E15E15
G23
E15E14E13E12SE7E3E6NE4E3E4NE5E6
2 days agoCalmCalmCalmW3SW5SW6SW6W6SW5SW4SW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE4CalmW4

Tide / Current Tables for Hawk Inlet Entrance, Alaska
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Hawk Inlet Entrance
Click for Map
Wed -- 02:34 AM AKDT     17.70 feet High Tide
Wed -- 06:34 AM AKDT     Sunrise
Wed -- 07:41 AM AKDT     Moonrise
Wed -- 08:49 AM AKDT     -2.60 feet Low Tide
Wed -- 02:58 PM AKDT     16.98 feet High Tide
Wed -- 07:34 PM AKDT     Sunset
Wed -- 09:02 PM AKDT     -1.28 feet Low Tide
Wed -- 10:03 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.91517.317.515.511.56.41.6-1.7-2.6-0.73.38.312.815.91715.812.78.23.60.1-1.3-0.13.4

Tide / Current Tables for Fritz Cove, Douglas Island, Alaska
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Fritz Cove
Click for Map
Wed -- 02:37 AM AKDT     18.53 feet High Tide
Wed -- 06:33 AM AKDT     Sunrise
Wed -- 07:39 AM AKDT     Moonrise
Wed -- 08:55 AM AKDT     -2.75 feet Low Tide
Wed -- 03:01 PM AKDT     17.76 feet High Tide
Wed -- 07:34 PM AKDT     Sunset
Wed -- 09:08 PM AKDT     -1.41 feet Low Tide
Wed -- 10:03 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.115.41818.416.412.47.12-1.6-2.7-138.313.116.517.816.713.58.94.10.3-1.4-0.43.2

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 (11,2,3,4)
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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.