Thursday, September21, 2017 L-36.com


Marine Weather and Tides
St. Michael, 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 7:42AMSunset 8:01PM Thursday September 21, 2017 11:36 AM AKDT (19:36 UTC) Moonrise 8:22AMMoonset 7:35PM Illumination 1% Phase: Waxing Crescent; 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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PKZ200 Norton Sound- 346 Am Akdt Thu Sep 21 2017
.small craft advisory in effect from this evening through early Friday morning...
Today..NE winds 20 kt. Seas 4 ft.
Tonight..NE winds 25 kt. Seas 5 ft.
Fri..NE winds 30 kt. Seas 6 ft.
Fri night..NE winds 25 kt. Seas 5 ft.
Sat..NE winds 20 kt. Seas 4 ft.
Sat night..NE winds 20 kt. Seas 4 ft.
Sun..NE winds 20 kt. Seas 4 ft.
Mon..NE winds 15 kt. Seas 4 ft.
PKZ200 Norton Sound- 346 Am Akdt Thu Sep 21 2017
.small craft advisory in effect from this evening through early Friday morning...
Today..NE winds 20 kt. Seas 4 ft.
Tonight..NE winds 25 kt. Seas 5 ft.
Fri..NE winds 30 kt. Seas 6 ft.
Fri night..NE winds 25 kt. Seas 5 ft.
Sat..NE winds 20 kt. Seas 4 ft.
Sat night..NE winds 20 kt. Seas 4 ft.
Sun..NE winds 20 kt. Seas 4 ft.
Mon..NE winds 15 kt. Seas 4 ft.

7 Day Forecast for Marine Location Near St. Michael, AK
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location: 63.62, -162     debug


Area Discussion for -
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Fxak69 pafg 211047
afdafg
northern alaska forecast discussion
national weather service fairbanks ak
247 am akdt Thu sep 21 2017

Discussion
The 00z model suite initialized well against the 00z surface
analysis and verified well against the 06z surface analysis. Model
spread remains minimal in the short range and reasonable in the
mid range. Model spread increases to expected levels in the long
range.

Aloft at 500 hpa, a 542 dm low over norton sound anchors a long
wave trough over the west coast and eastern bering sea and will
drift southwest over nunivak island and then bristol bay through
Saturday as ridging builds north over the central and eastern
interior. The upper level ridge over the eastern interior weakens
Sunday as a shortwave rotating around the upper level over bristol
bay rotates north into the southern interior Sunday afternoon.

On the surface a 1030 mb high stretching from banks island to near
barrow will drift north as a 1014 mb low develops over the
northern yukon and deepens to 1008 mb as it drifts to near the
mckenzie delta through Sunday morning. A 996 mb low 200 nm south
of adak currently extends northeast as a series of lows along the
aleutians. The series of lows will drift northeast along the
aleutian chain to southern alaska through Sunday as the series of
lows continue to move northeast into the southern interior a tight
gradient will develop between the lows emerging in the southern
interior and the high pressure system stretching along the eastern
north slope. Expect gusty northeast to east winds to develop
Friday and continue through Sunday over summits and higher terrain
as well as channeled terrain in the interior.

The series of lows will also bring scattered rain showers over
the lower elevations of the interior and scattered snow showers
above 3500 feet in the southern interior and above 2000 feet in
the northern interior.

Coastal hazard potential days 3 and 4... None.

Hydrology Rivers running high, but slowly falling. Rivers will
remain high through rest of the week.

Afg watches warnings advisories
Small craft advisory for pkz200-pkz210-pkz225-pkz230.

Ccc sep 17


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St Michael, AK11 mi41 minNE 1210.00 miMostly Cloudy46°F42°F86%1011.7 hPa

Wind History from AMK (wind in knots)
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Last 24hrN7N5NE5N10NE10NE11NE11NE11N10N9NE9NE9NE12N10NE6S8E3CalmCalmNE4N4NE10NE12NE12
1 day agoS14S15SW17
G23
W18
G24
SW15SW11SW9SW6SW7SW4CalmCalmS5SW5SW7SW6SW5SW4W7SW6S8SW9SW9--
2 days agoNW12NW12NW12
G19
NW14NW14NW12NW14--W14W9W8W10W9SW9S10SW9S8S6S8S15S17S17
G26
S17S19
G22

Tide / Current Tables for North Bay, Stuart Island, Norton Sound, Alaska
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North Bay
Click for Map
Thu -- 02:09 AM AKDT     1.45 feet High Tide
Thu -- 07:14 AM AKDT     0.95 feet Low Tide
Thu -- 08:31 AM AKDT     Sunrise
Thu -- 10:23 AM AKDT     Moonrise
Thu -- 01:35 PM AKDT     1.89 feet High Tide
Thu -- 08:27 PM AKDT     0.46 feet Low Tide
Thu -- 08:52 PM AKDT     Sunset
Thu -- 09:37 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.41.41.41.31.110.911.11.21.51.71.91.91.71.41.10.80.60.50.50.60.8

Tide / Current Tables for Pikmiktalik River entrance, Norton Sound, Alaska
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Pikmiktalik River entrance
Click for Map
Thu -- 04:32 AM AKDT     1.76 feet Low Tide
Thu -- 08:32 AM AKDT     Sunrise
Thu -- 10:23 AM AKDT     Moonrise
Thu -- 10:53 AM AKDT     3.21 feet High Tide
Thu -- 05:43 PM AKDT     1.04 feet Low Tide
Thu -- 08:52 PM AKDT     Sunset
Thu -- 09:38 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.52.32.11.91.81.81.92.12.52.83.13.23.12.72.21.71.31.111.21.522.42.8

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 Bethel, 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.