Wednesday, January23, 2019

Marine Weather and Tides
Nunam Iqua, AK

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 9:37AMSunset 4:44PM Wednesday January 23, 2019 3:19 AM AKST (12:19 UTC) Moonrise 8:57PMMoonset 11:09AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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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7 Day Forecast for Marine Location Near Nunam Iqua, AK
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location: 62.62, -164.85     debug

Area Discussion for -
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Fxak69 pafg 230108
northern alaska forecast discussion
national weather service fairbanks ak
408 pm akst Tue jan 22 2019

A series of weather fronts moving north along the west coast will
bring periods of strong and gusty winds, snow, and blowing snow to
the west coast into Wednesday. Strong southerly flow aloft will
allow for a moderate chinook to develop in the alaska range
tonight and Wednesday, bringing a warm up for areas south of the
brooks range.

Aloft, at 500 mb, a long wave trough over the bering will persist
through the week, with various lows and shortwaves rotating
through the flow. Upper level ridging will continue to build
across the state through tonight. A progression of shortwaves
across the west coast will push the ridge axis to the east through

Surface... A lee side trough north of the brooks range will deepen
through Thursday with a pinch developing near demarcation point. A
closed low will develop near demarcation point by Wednesday
night, continuing to deepen and will slide eastward Thursday to be
near mackenzie bay.

A 963 mb low 150 nm northeast of atka this afternoon will move
northwest to be a 965 mb low 375 nm northwest of adak by Wednesday
morning and 150 nm northwest of shemya Wednesday afternoon. The
associated weather front will lift north across the west coast
into Wednesday.

A 973 mb low north of cold bay Wednesday morning will lift north
to be a 979 mb low near toksook bay Wednesday afternoon and a 988
mb low near the eastern side of st lawrence island by Thursday
morning, further weakening and becoming part of the inverted
trough along the west coast. The associated weather front
stretching east from the low will move north across the west coast
and interior Wednesday and Thursday.

Models... 12z models initialized well against the 12z raobs and
fair against the 12z and 15z surface obs. 12z surface obs showed a
tighter pressure gradient associated with an inverted trough on
the west coast, than what models captured from kotzebue sound
south to the seward peninsula and to a lesser extent the y-k
delta. Observations were 2 to 4 mb lower than model solutions.

This has resulted in strong winds than previously forecast. Models
are in fair agreement with the overall synoptic pattern through
Thursday. Mesoscale differences become apparent by Friday 12z,
with the lows and shortwaves near the aleutians and in the bering
sea. By Thursday, model guidance indicate a number of surface lows
developing along the aleutians, but the strength, path, and
timing of the lows is different for each model, lowering already
low confidence in model solutions.

North slope and brooks range: wind chill values remain a concern
tonight for the north slope with temperatures in the 20 to 30
below zero range. Winds will stay up over the western north slope
where wind chills of around 55 below zero will remain possible.

Upgraded the wind chill advisory in zone 201 to a winter weather
advisory to address the blowing snow at point lay. Southerly winds
will increase this evening and tonight and remain gusty through
Thursday morning in the eastern brooks range, especially in the
passes, with gusts to 35 mph possible. A front moving across the
brooks range Wednesday night and Thursday will bring a round of
snow and blowing snow.

West coast and western interior: a frontal wave moving north
along the coast this evening and into Wednesday morning will bring
gusty easterly winds, snow, and areas of blowing snow. Another
front will move into the y-k delta early Wednesday and continue
northward through the day, keeping winds up and bringing another
round of snow and blowing snow. Snowfall totals through Wednesday
will range from 2 to 4 inches, with isolated higher amounts in the
favored upslope areas. Highest snowfall totals will fall in the
nulato hills. Temperatures will trend upward the next several

Central and eastern interior: gusty easterly winds continue over
the highway summits in the central interior tonight, diminishing
by morning. This will bring areas of blowing snow to summits along
the dalton in zone 219. High pressure building north into the
interior will induce a weak mountain wave across the alaska range,
allowing for a moderate chinook to develop tonight continuing into
Wednesday and diminishing Wednesday night. Tanana valley jet will
strengthen tonight into Wednesday with gusty east to southeasterly
winds expected near delta junction. Wind advisories remain in
place for zones 223, 225, and 226. The southerly flow will bring
warmer temperatures over northern alaska for the end of the week.

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

Afg watches warnings advisories
Wind advisory for akz223-akz225-akz226.

Winter weather advisory for akz201-akz209-akz213-akz214-akz215-

Gale warning for pkz210.

Brisk wind advisory for pkz200-pkz215-pkz220-pkz225-pkz230.

Eb jan 19

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Emmonak, Emmonak Airport, AK21 mi24 minENE 1010.00 miA Few Clouds20°F17°F89%998.6 hPa

Wind History from AEM (wind in knots)
Last 24hrNE8NE8NE8NE7NE7NE8--NE9--NE7E9NE10NE11--E12E14E15E13NE7E10E9----NE10
1 day agoNE11NE14NE13
2 days agoNE6NE7NE7NE7NE6NE7NE7NE10NE12NE11NE10NE11NE13NE12NE13NE12N10N8NE8N9N6N8N8NE8

Tide / Current Tables for Kwikluak Pass, Yukon River, Bering Sea, Alaska
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Black, Black River, Bering Sea, Alaska
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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GOES Local Image of Alaska    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Nome, AK
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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 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 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.