Wednesday, January17, 2018 L-36.com


Marine Weather and Tides
Covenant Life, 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 8:25AMSunset 3:50PM Wednesday January 17, 2018 12:06 AM AKST (09:06 UTC) Moonrise 8:58AMMoonset 4:52PM Illumination 0% Phase: New Moon; Moon at 1 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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PKZ011 Glacier Bay- 320 Pm Akst Tue Jan 16 2018
Tonight..SE wind 20 kt diminishing to 10 kt late. Gusts to 35 kt early in the evening. Seas 4 ft subsiding. Rain showers.
Wed..N wind 15 kt. Seas 3 ft.
Wed night..N wind 15 kt. Seas 3 ft.
Thu..N wind 15 kt. Seas 3 ft.
Thu night..NW wind 15 kt. Seas 3 ft.
Fri..N wind 10 kt. Seas 3 ft.
Sat..NW wind 15 kt. Seas 3 ft.
Sun..NW wind 15 kt. Seas 3 ft.

7 Day Forecast for Marine Location Near Covenant Life, AK
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location: 58.88, -136.57     debug


Area Discussion for -
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Fxak67 pajk 162333
afdajk
southeast alaska forecast discussion
national weather service juneau ak
233 pm akst Tue jan 16 2018

Short term A low is tracking across the central gulf and its
associated front will pass over the panhandle late tonight.

Another front coming up from the north pacific is on its heels and
will move into the southern panhandle Wednesday while the parent
low stalls southwest of haida gwaii. A short dry period should
exist between these two weather fronts Wednesday. Temperatures
continue to cool off, but stay mild through mid week.

The GFS and NAM were the preferred models. Previous updates remain
on track and no significant changes were observed in the new
models, so no significant changes made to the existing forecast.

Minor edits and updates made to areas of precipitation and on
temperatures.

Gales force winds over the eastern gulf verified by at least one
ship observation earlier today and cman buoys located in the gulf.

Gales will subside from south to north through the night with no
significant shift in wind directions. Easterly winds over the
southeastern gulf will ramp back up again to gale force tomorrow
along the northern periphery of the low approaching from the
southwest. Pressure gradient between the panhandle and western
british columbia remains tight, so small craft winds over the
eastern inner channels were included for tomorrow in the
afternoon forecast update.

Long term Thursday through Tuesday as of 10 pm Monday
complicated flow pattern looks to be developing in the long range.

Higher latitudes will be transitioning to a blocky pattern with a
ridge over the bering sea, a trof over mainland ak, and another
weak ridge over NW canada by late week. Mid latitudes will be
somewhat progressive with many shortwaves passing E across the pac
toward the pac NW states. The interaction between the northern and
southern streams will be the tricky part of the forecast. Some
models suggest phasing of streams over the epac gulf of ak area
for late weekend and early next week, with other models keeping
streams separate.

Main adjustment for thu-fri was to shift a low that moves toward
the haida gwaii area in short range further S and to decrease
pops. Also, a cooling trend looks likely for much of the long term
period, but there are some model differences on how cold it will
get. Temps were tweaked down some based on trends. Did make some
wind tweaks through 00z Sun to show more low level ridging over
the gulf. Overall, due to the complicated flow pattern developing,
forecast confidence is well below average.

Aviation Some areas of wind shear still exist, but conditions
in terms of wind and CIGS are slowly improving. Wind shear becomes
an issue again Wednesday afternoon as a low level jet to 60 kt out
of the southeast associated with the approaching haida gwaii low
moves over the southern panhandle.

Ajk watches warnings advisories
Public... Strong wind until 3 pm akst this afternoon for akz023.

Strong wind until 9 pm akst this evening for akz017.

Marine... Gale warning for pkz041>043-051-052.

Small craft advisory for pkz012-013-021-022-031>036.

Small craft advisory due to seas for pkz053.

Kv fritsch rwt
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BLTA2 - Bartlet Cove AK 47 mi41 min ENE 1 G 2.9 40°F
CSPA2 - Cape Spencer, AK 47 mi57 min ENE 5.1 G 14 42°F 39°F
ELFA2 - 9452634 - Elfin Cove, AK 49 mi49 min 39°F 47°F1005.7 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from AEL (wind in knots)
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Last 24hr------------------------------Calm--E10--E10--E8--E11
1 day ago------------------------------4--E7--E10--E11--E9
2 days ago--------------------------------E9E12--S12--E9--E14

Tide / Current Tables for Composite Island, Glacier Bay, Alaska
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Composite Island
Click for Map
Wed -- 02:05 AM AKST     15.49 feet High Tide
Wed -- 07:50 AM AKST     3.57 feet Low Tide
Wed -- 08:42 AM AKST     Sunrise
Wed -- 08:57 AM AKST     Moonrise
Wed -- 01:34 PM AKST     17.61 feet High Tide
Wed -- 03:51 PM AKST     Sunset
Wed -- 04:53 PM AKST     Moonset
Wed -- 08:12 PM AKST     -1.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.914.515.514.812.79.66.54.23.658.111.915.317.317.415.712.48.13.70.4-1.1-0.42.36.2

Tide / Current Tables for Muir Inlet, Glacier Bay, Alaska
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Muir Inlet
Click for Map
Wed -- 02:04 AM AKST     15.75 feet High Tide
Wed -- 07:47 AM AKST     3.23 feet Low Tide
Wed -- 08:40 AM AKST     Sunrise
Wed -- 08:55 AM AKST     Moonrise
Wed -- 01:38 PM AKST     17.59 feet High Tide
Wed -- 03:49 PM AKST     Sunset
Wed -- 04:51 PM AKST     Moonset
Wed -- 08:16 PM AKST     -1.53 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.914.615.71512.79.46.13.83.34.87.911.715.117.217.515.912.68.33.80.3-1.4-0.91.85.8

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 (4,6,7,8)
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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.