Monday, March18, 2019 L-36.com


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 8:04AMSunset 8:11PM Monday March 18, 2019 6:04 PM AKDT (02:04 UTC) Moonrise 3:31PMMoonset 7:17AM Illumination 96% Phase: Waxing Gibbous; Moon at 13 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 190017
afdafg
northern alaska forecast discussion
national weather service fairbanks ak
417 pm akdt Mon mar 18 2019

Weather highlights...

a storm over the eastern north slope is now causing strong winds
and blizzard conditions on the eastern north slope which will
abate at deadhorse late this afternoon, and at barter island this
evening as winds decrease.

Snow developing along a cold front over the central western
interior tonight will spread to the eastern north slope tue
bringing 2-4 inches of snow to those areas. The front will bring
a chance of rain and snow in the eastern interior Tue as well
along with a slight chance of freezing rain early Tue am.

A third storm will bring moderate to heavy snow to the northern
and western interior and eastern north slope on Wed afternoon
through early thu.

Moderate chinook winds across the alaska range will taper off
early tue, then redevelop on Wed am.

Synopsis
Aloft...

a long wave trough persisting over the bering sea and across the
n pacific to the gulf of ak, with a long wave ridge over western
canada will persist through the weekend.

A short wave will make its wave NE across ak tonight and tue, then
the ridge will build slightly from NW canada over northern ak tue
causing southerly flow to weaken, before the next short wave
moves north over ak Wed night and Thu bringing more weather to the
northern and western interior, and a return of southerly flow and
chinook winds.

End result for NRN ak looks like continued windy and wet over
west coast and western interior, much warmer than normal over the
ern interior, and near normal over the north slope with periods of
winds and snow through the weekend.

Surface...

a 990 mb low 100 nm north of barter island will move to 300 nm
northeast of barter island as a 996 mb low by 4am tue, and then
move east. This is causing west winds 30g50 mph and blizzard
conditions at barter island, but the winds and blowing snow are
now diminishing at deadhorse, and will rapidly diminish this
evening at barter island.

An arctic cold front extending from this low to old crow to
bettles to telida will remain quasi-stationary tonight as a low
now located near illiamna moves to bettles as a 996 mb low by 4am
tue. This low will push an occluded front aloft over the arctic
front causing moderate snow to develop tonight over the western
and northern interior. Expect 2-4 inches of snow from mcgrath to
atigun pass from late tonight through Tue pm. This low will cause
south chinook winds along the alaska range to increase again
tonight then to decrease on tue.

That low will move to mackenzie bay as a 993 mb low by 4pm tue
with the cold front from there to arctic village to delta junction
by 4pm tue. Snow will move east with the front giving fairbanks
about 1 inch, but less chance SE of fairbanks. There is a chance
of freezing rain in the warm air just east of the front tue
morning, but it will be very brief and light. The low will cause
blowing snow Tue pm near barter island with reduced vsby.

That cold front moves to inuvik to eagle to denali by 4 am wed,
and then to old crow to mcgrath by 4pm wed, and to barter island
to anaktuvuk pass to the yk delta by 4pm thu. Cooler, though
still above normal temperatures will follow the cold front in the
ern interior.

A storm in the gulf of alaska will push its front north and merge
with the arctic front late Wed giving a good overrunning snow
potential to the northern and western interior for Wed afternoon
through thu. Could see 4-8 inches of snow Wed pm through thu,
with the heaviest amounts stretching from the anvik to atigun
pass. This will also cause an increase in southerly chinook winds
again Wed into thu, and cause the SE interior to warm up again.

A 988 mb low 100 nm north of wrangel island will continue to move
north. A trough of low pressure extending south from this low
will move east to point hope and the bering strait by 4pm tue, and
then continue east to barter island to the yk delta 4pm Wed with the
trough merging with the arctic front Wed night. SW winds 15-25 kt
will accompany this trough into NW ak Tue and Tue night, with the
winds turning N 15-25 kt west of the trough over the brooks range
wed pm and thu.

A 988 mb low 100 nm north of wrangel island will continue to move
north. A trough of low pressure extending south from this low into
the western bering sea will move east to point hope and the
bering strait by 4pm tue, and then move inland Tue night.

Discussion
Models initialize well on most fields and show similar solutions
aloft. Models also show similar areal coverage for precip fields,
but differ some on amounts. For now we will go with a mix of gfs
and NAM precip amounts.

At the surface at 15z, models all verify 4 mb too weak on surface
low just north of deadhorse, and as a result winds are much
stronger than models indicate on eastern north slope today. This
is curious since the NAM yesterday forecast the depth of the low
and the winds on the eastern arctic coast for today quite well.

We have boosted the winds considerably to reflect reality on the
eastern arctic coast for today, and the winds there should abate
quickly this evening as the surface low moves rapidly east.

Models show similar solutions at the surface through 12z tue,
then the NAM moves the surface low from the NE interior to
demarcation point more quickly and at a lower depth than the gfs,
and gives much stronger winds at barter island Tue pm. This nam
solutions seems better given the short wave supporting this
feature and the current deep depth of the feature. The NAM also
deepens a another surface low in mackenzie bay on Thu more than
the gfs, which again seems reasonable give the dynamics. For
these reasons we will use the NAM surface field for winds for
tonight through thu.

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

Afg watches warnings advisories
Wind advisory for akz223-akz226.

Blizzard warning for akz204.

Winter weather advisory for akz203-akz206-akz218.

Gale warning for pkz240-pkz245.

Brisk wind advisory for pkz210-pkz220-pkz225-pkz230-pkz245.

Jb mar 19


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Emmonak, Emmonak Airport, AK21 mi69 minN 129.00 miLight Snow17°F10°F74%1010.6 hPa

Wind History from AEM (wind in knots)
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Last 24hrN8N5N6N5N5N5NW9NW6N5N5N5N4N5N5NW9NW7NW7N7N8N12N12N13N12N8
1 day agoNW8W10W8W8W6S7SW9SW7S9S8SW11S9S8S12S6S4S7S4N8N9N8N8N6N7
2 days agoSE4SE6E7E6E6E3E3E44N5N4NW6NW7NW7N6N6N8NW7N13N12N12NW12NW11NW10

Tide / Current Tables for Kwikluak Pass, Yukon River, Alaska
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Kwikluak Pass
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Mon -- 02:56 AM AKDT     1.35 feet High Tide
Mon -- 09:06 AM AKDT     Sunrise
Mon -- 09:16 AM AKDT     Moonset
Mon -- 10:49 AM AKDT     -0.07 feet Low Tide
Mon -- 04:12 PM AKDT     1.68 feet High Tide
Mon -- 05:31 PM AKDT     Moonrise
Mon -- 09:09 PM AKDT     Sunset
Mon -- 11:43 PM AKDT     0.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.91.21.31.31.10.90.60.40.1-0-0.10.10.61.11.51.71.61.51.20.90.60.40.2

Tide / Current Tables for Black, Black River, Alaska
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Black
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Mon -- 12:44 AM AKDT     4.22 feet High Tide
Mon -- 07:08 AM AKDT     -0.40 feet Low Tide
Mon -- 09:08 AM AKDT     Sunrise
Mon -- 09:16 AM AKDT     Moonset
Mon -- 02:00 PM AKDT     5.24 feet High Tide
Mon -- 05:34 PM AKDT     Moonrise
Mon -- 08:02 PM AKDT     1.05 feet Low Tide
Mon -- 09:11 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.14.23.831.90.80-0.4-0.20.61.83.14.255.24.94.23.22.21.411.322.9

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.
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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.