Saturday, August18, 2018 L-36.com


Marine Weather and Tides
Unalakleet, AK

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Sunrise 6:14AMSunset 9:52PM Friday August 17, 2018 8:38 PM AKDT (04:38 UTC) Moonrise 2:14PMMoonset 10:27PM Illumination 42% Phase: Waxing Crescent; Moon at 7 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 Unalakleet, AK
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location: 63.88, -160.76     debug


Area Discussion for -
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Fxak69 pafg 172139
afdafg
northern alaska forecast discussion
national weather service fairbanks ak
139 pm akdt Fri aug 17 2018

Synopsis
A 500 mb low 100 nm north of the mackenzie river delta is bringing
some precipitation mainly in the form of rain to the brooks range
this afternoon along with an arctic front nearly stationary across
the north slope. Ridging continues over the gulf of alaska aloft.

An upper low is just south of the tip of the alaskan peninsula
with ridging over the central and western bering sea. The
remainder of the interior and northwestern coast is under upper
level westerly zonal flow.

On the surface a weak low around 1003 mb has formed today along
the arctic boundary along the brooks range. This front extends
back to a 997 mb low just to the west of wrangel island. The rest
of the interior is under westerly flow. Surface ridging from the
bering sea has nosed up to the bering strait region.

Discussion
Models...

after the initial period the models at the 24 hour time step sun
00z or Saturday afternoon the canadian upper low has moved further
east. A trough is left across the arctic ocean with the base of
the trough near the eastern edge of the siberian islands. Gulf of
alaska ridge has built into the yk delta region and dominates the
eastern interior of alaska. The south of the ak pen upper low is
fairly stationary along with the ridge over the western bering
sea. An upper low enters into the synoptic region at the tip of
the kamchatka peninsula. The big three are very close and ensemble
spread is fairly low. At 48 hours or the 00z Monday Sunday
afternoon time step the eastern siberian islands upper low and
kamchatka upper low are phasing together. The south of the ak pen
upper low is very slow nudged north and the western bering ridge
is squeezed and forced a little east. The mainland of alaska and
panhandle is under upper ridge that spans now into the chuckchi
sea. Big 3 (gfs ec cmc) all in great agreement. The 72 hour time
step for 00z Tuesday Monday afternoon the upper low complex in the
west has phased together over the northern kamchatka peninsula
and the upper low near the ak pen is moving into bristol bay
region. The bering sea has been flattened out by the deepening
system to the northwest. The mainland ridge is shifting to the
east and weakening for cooler temperatures. The 96 hour time step
for 00z Wednesday Tuesday afternoon the kamchatka upper low has
phased now with the bristol bay upper low for a deep upper low
over the western bering sea. A weak upper low looks to form over
eastern kenai peninsula as the upper ridge over the mainland has
shifted east into the canadian rockies. Mainland alaska is caught
in the middle with light flow aloft. Models have slightly
different spins on this pattern, however all come to a fairly good
agreement for moderate confidence in the pattern. The out periods
of the extended feature different ideas on the bering sea upper
low with some members taking it into the yk delta region, some up
into the bering strait and the GFS leaves it as a weakening
trough. The north slope has very low confidence since almost any
outcome in the upper levels is possible. Eastern interior all
solutions keep the area in fairly light flow aloft by different
means.

North slope...

moist northwesterly flow will continue through the weekend. On
shore flow from the arctic ocean could produce an additional
rainfall on the north side of the brooks range. The heaviest rain
is expected east of anaktuvuk pass. A second surface low will
move across the north slope on Saturday with an associated mid
level shortwave enhancing the showers.

West coast and western interior...

a surface ridge extending west from the interior will keep conditions
quiet across much of the region over the next several days. Temperatures
will remain warm into the weekend. Southwest flow may initiate
some shower activity across south facing shores. By Sunday,
showers associated with a north pacific low will begin to move up
the y-k delta into the southwestern interior.

Central and eastern interior...

ridging is still anticipated to push into the eastern interior
over the next couple of days, warming temperatures. Strong
southwesterly flow will cause gusty winds for the next day or so.

Wind gusts up to 45 mph are possible over highway summits, with
up to 25 mph across lower elevations near fairbanks. A wind
advisory for summits along the steese highway will continue. By
early next week, a pacific low will initiate chinook conditions as
strong southerly flow develops across the alaska range.

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

Fire weather high pressure is expected to continue building
into the interior from the southeast. Warmer temperatures and
drier conditions are expected into the weekend. Southwest flow
will help moderate relative humidities, as most areas will remain
well above 40 percent. However the upper tanana valley east of
delta junction may see rh values in the low to mid 30s by
Saturday.

Hydrology...

heaviest rainfall will occur on the north side of the brooks range
feeding into the north slope river systems. No flooding is
expected, however some higher water can be expected with the
runoff later this weekend into next week. For the latest
information go to

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ULRA2 1 mi39 min 1018.4 hPa (+0.3)

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Unalakleet, AK3 mi43 minWSW 1310.00 miMostly Cloudy56°F48°F75%1019 hPa

Wind History from AUN (wind in knots)
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Last 24hrW12W15W14W14SW16SW19SW19SW19SW17SW18SW18SW18SW16SW14SW16SW16SW17SW18SW12SW15SW11W13W14SW13
1 day agoNW7CalmCalmSE3E4E3E5E5CalmE4E4SE3W8W7SW10SW10SW11SW10--SW12SW9W10SW12W11
2 days agoW6W8SW5E6E6E7E6SE6E6SE5E7E6E4E43W4SW5W7NW9NW8NW9NW6NW7NW7

Tide / Current Tables for North Bay, Stuart Island, Norton Sound, Alaska
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North Bay
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Sat -- 12:36 AM AKDT     Moonset
Sat -- 06:38 AM AKDT     2.24 feet High Tide
Sat -- 06:54 AM AKDT     Sunrise
Sat -- 01:46 PM AKDT     0.83 feet Low Tide
Sat -- 05:42 PM AKDT     Moonrise
Sat -- 06:10 PM AKDT     1.18 feet High Tide
Sat -- 10:51 PM AKDT     Sunset
Sat -- 11:29 PM AKDT     0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.50.81.21.622.22.22.11.81.41.210.90.80.911.11.21.110.70.50.4

Tide / Current Tables for
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Weather Map and Satellite Images
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wmap_P
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 Bethel, 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.