Saturday, December16, 2017 L-36.com


Marine Weather and Tides
Kotlik, 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 10:07AMSunset 3:43PM Saturday December 16, 2017 7:48 AM AKST (16:48 UTC) Moonrise 8:11AMMoonset 3:18PM Illumination 3% Phase: Waning Crescent; Moon at 28 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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PKZ200 Norton Sound- 346 Am Akst Sat Dec 16 2017
Today..E winds 15 kt.
Tonight..N winds 10 kt.
Sun..W winds 20 kt. Blowing snow.
Sun night..W winds 20 kt.
Mon..SE winds 35 kt. Blowing snow.
Mon night..SE winds 40 kt. Blowing snow.
Tue..S winds 20 kt.
Wed..S winds 20 kt.
PKZ200 Norton Sound- 346 Am Akst Sat Dec 16 2017
Today..E winds 15 kt.
Tonight..N winds 10 kt.
Sun..W winds 20 kt. Blowing snow.
Sun night..W winds 20 kt.
Mon..SE winds 35 kt. Blowing snow.
Mon night..SE winds 40 kt. Blowing snow.
Tue..S winds 20 kt.
Wed..S winds 20 kt.

7 Day Forecast for Marine Location Near Kotlik, AK
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location: 63.05, -163.38     debug


Area Discussion for -
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Fxak69 pafg 161314
afdafg
northern alaska forecast discussion
national weather service fairbanks ak
414 am akst Sat dec 16 2017

Discussion
Models... The last few solutions have tracked well initially with
good run to run continuity in the first 24 hours. There continue
to be issues beyond the 24 hours. Good initialization of the
16 00z run against the 16 06z surface analysis. Will lean on the
nam for precipitation again today as it will be spotty around the
forecast area.

Aloft... At 500 hpa... Ridge over the eastern arctic coast will pull
back into canada by this evening. 505 dam low over nunivak island
will swing southeast as the trough opens up and moves east across
the state. By Sunday morning a 515 dam low will be over the
northern gulf of alaska, and a 512 dam low will be over the middle
tanana valley. The trough will continue to slowly move east to be
over the alcan border by Monday morning. Weak riding lies over the
dateline this morning and will move over the eastern bering sea
and chukchi sea by Sunday morning, and over the west coast by
Monday morning. It will continue east with the axis lying from
kodiak island to minchumina to wainwright Monday evening, then
over the alcan border by Tuesday afternoon. A 492 dam low will
move into the western bering sea by Sunday morning and to the
western gulf of anadyr by Tuesday morning at 490 dam. A strong
shortwave associated with the low will move to the eastern bering
sea by Monday afternoon, and over the west coast by Tuesday
morning. At 850 hpa... The forecast area is below zero, while
areas north of the brooks range are -10c or colder this morning.

A slow cooling trend will continue into Monday when a warming
trend will start on the west coast as a weather system moves into
the area.

Surface... High pressure remains over the arctic as it extends
southeast from a 1039 mb high near 80n 160e to south of banks
island and will persist into Monday before it is pushed just
offshore by the approaching low pressure system as troughing
develops over the arctic coast. A broad area of low pressure will
remain over most of the state as a stacked 973 mb low pressure
system that is over nunivak island this morning rotates southeast
to be over kodiak city by Sunday morning at 994 mb while a 984 mb
low develops over nenana this evening in leeside troughing, and a
997 mb low develops over kotzebue sound. A ridge of high pressure
over the central aleutians and central bering sea will move east
to lie from unalaska to st lawrence island by Sunday afternoon,
and over the southwest mainland and bristol bay by Monday morning.

A low pressure system will move to the western bering sea Sunday
morning with a front moving to the central bering sea and central
aleutians by Sunday night. The low will slowly move east in the
northern bering sea and the front will move to the west coast by
Monday afternoon. The front will bring some warmer air with it and
could produce freezing rain in the lower yukon delta and on st
lawrence island Monday.

Arctic coast and brooks range... Cloudy, light snow or flurries,
fog, blowing snow, and persistent winds of 20 to 30 mph will
continue through today and most of tonight. Winds will diminish a
bit Sunday to 10 to 20 mph, and the blowing snow will diminish as
the winds come down and the falling snow tapers off. Temperatures
will continue to cool.

West coast and western interior... A bit messy in the west as the
low has moved over nunivak island and snow is spreading north and
east. At least a period of snow for most locations today, with up
to 3 inches of accumulation. Winds diminishing this morning for
most of the area, but the stronger winds will hang on a bit longer
in the lower yukon delta, and around point hope. Temperatures
cooling through Monday morning. The next weather system will be
moving to the west coast and st lawrence island Monday and it will
be quite messy with models currently indicating snowfall of 3 to
10 inches, freezing rain in the lower yukon delta and on st
lawrence island, and winds gusting 50 to 60 mph on st lawrence
island and the bering strait coast. This is building into a
significant weather system that will impact the area that will be
monitored closely over the next couple days.

Central and eastern interior... Some light snow and flurries around
the interior will taper off as a decaying front moves to the
south slopes of the brooks range by this afternoon. Cloudy
conditions will prevail, but look for some breaks during the day.

Another chance of snow Sunday as a weak low moves east across the
area, but not looking for any significant snowfall today or
tomorrow. Temperatures will continue to cool. Gap winds in the
alaska range diminishing rapidly this morning, elsewhere winds
will be light.

Coastal hazard potential days 3 and 4... Strong south winds moving
to the west coast Monday may impact the area. There is some
potential for a minor ice push on the south facing coastal areas.

Extended forecast for days 4 to 7... A strong weather front will
move into the interior Tuesday and Wednesday that could produce 2
to 6 inches of snow.

Afg watches warnings advisories
Heavy freezing spray warning for pkz210-pkz220.

Gale warning for pkz210-pkz225.

Small craft advisory for pkz220.

Brisk wind advisory for pkz230-pkz235-pkz240-pkz245.

Sdb dec 17


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from AEM (wind in knots)
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Last 24hrN5N5N5N5N5N4--CalmCalmNW5N6N7N6N6N8N7N6N5N8N7N9N10N8N8
1 day agoNE18
G24
NE19
G24
NE17--NE17
G24
NE16NE17NE14NE12NE10NE9NE13N10N11N14N12N9N8N7N6N7N6N6N6
2 days agoS11S11S12S16S11S7S6SE3SE4S6E4E3E4E4NE5N5NE7NE7NE10NE12NE10NE13NE12NE14
G19

Tide / Current Tables for Apoon Mouth, Yukon River, Norton Sound, Alaska
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Apoon Mouth
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Sat -- 06:47 AM AKST     0.25 feet Low Tide
Sat -- 09:10 AM AKST     Moonrise
Sat -- 11:27 AM AKST     Sunrise
Sat -- 04:11 PM AKST     Sunset
Sat -- 04:18 PM AKST     Moonset
Sat -- 10:08 PM AKST     3.93 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.12.51.91.40.90.50.30.30.30.50.60.70.70.70.91.11.51.92.32.83.43.73.93.8

Tide / Current Tables for Pikmiktalik River entrance, Norton Sound, Alaska
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Pikmiktalik River entrance
Click for Map
Sat -- 05:01 AM AKST     0.61 feet Low Tide
Sat -- 09:09 AM AKST     Moonrise
Sat -- 11:27 AM AKST     Sunrise
Sat -- 04:05 PM AKST     Sunset
Sat -- 04:13 PM AKST     Moonset
Sat -- 08:23 PM AKST     4.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.51.91.410.70.60.70.80.9111.11.21.41.82.22.73.23.84.34.54.54.23.6

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
npac_satellite

GOES Local Image of Alaska    EDIT
Geos

Ground Weather Radar Station Nome, 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.