Marine Weather and Tides
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|Sunrise 6:26AM||Sunset 9:37PM||Friday August 23, 2019 11:50 AM AKDT (19:50 UTC)||Moonrise 10:41PM||Moonset 3:44PM||Illumination 42%|
7 Day Forecast for Marine Location Near Nunam Iqua, AKHourly EDIT Help
Area Discussion for -  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxak69 pafg 231412|
northern alaska forecast discussion
national weather service fairbanks ak
612 am akdt Fri aug 23 2019
Synopsis... Some isolated showers in the interior today, otherwise
pretty quiet. Most activity will be focused on the arctic as a
couple of weather fronts work their way east across the area.
Snowfall in the eastern brooks range, mainly above 2000 feet will
bring up to 4 inches of new snow. Less than 2 inches of snow in
atigun pass. Periods of rain on the arctic coast as the fronts
move through. Some very isolated showers on the west coast today.
Persistent north winds will produce some elevated surf on the
north facing coastlines today.
Models... 23 00z solutions are in good agreement for the short
term and even into the midrange. Broad cyclonic flow over the area
will persist with it becoming more zonal as it extends south over
the alaska range later in the solutions. It is going to be a
pretty active pattern for the arctic, but not too active south of
the brooks range. Will lean quite a bit on the current forecast
database nudging it to the NAM solutions that seems to be
providing better coverage for precipitation than the ECMWF or the
gfs which have been much too aggressive with coverage. Will be
using the namdng for winds again today, but will kick the winds up
a bit in a few locations as they are a bit stronger than solutions
Aloft... At 500 hpa... Broad cyclonic pattern will persist. Low
remains near the north pole and has deepened to 516 dam. A second
low with a 522 dam center has developed along the trough 400 nm
north of demarcation point. Troughing extends from the 522 dam low
southwest over kaktovik to tanana to bethel to a 548 dam low over
the pribilof islands. By Saturday morning the trough will lie
from the low near banks island southwest to eagle to anchorage to
549 dam low that has moved just south of the pribilof islands. The
low near the north pole will move to 600 nm north of point barrow
with cyclonic flow persisting over the arctic. Weak ridging over
the chukchi sea today will slide south and push east over the west
coast, and the lower yukon delta. The ridging will slide east
over southcentral alaska Sunday with weak trough developing north
of the alaska range as a decaying front push south. At 850
hpa... 0c isotherm lies from old crow yt to ambler, then northwest
this morning and will persist in the same area through Saturday
morning. By Sunday morning it will lie along the crest of the
brooks range and persists there through Monday morning.
Surface... Benign pattern remains over the area with a broad area
of low pressure extending from the arctic to the northeast
pacific. High pressure persists over siberia and the bering sea.
The combination of low pressure over the arctic, and high pressure
in siberia is producing a tightened pressure gradient over the
western arctic, chukchi sea, and bering strait. A 993 mb low 250|
nm N of kaktovik with a front extending S is moving SE and will
move E of the area this afternoon. Weak high pressure behind the
front will move across the area today. A 987 mb low will move to
500 nm N of point barrow by Sat morning as a weather front over
the western bering sea moves E to lie along 160w this afternoon,
then along 150w by Sat morning. The front will move into the
beaufort sea late Sat morning. Another front will sweep SE around
the low as it moves E and will lie from the low to the chukchi sea
sat afternoon. By Sun morning the low will be in the northern
beaufort sea with a 982 mb center and the front will lie along 72n
as it drags e. A 987 mb low in the southern gulf of alaska will
move east and weaken, but will continue to spin moisture north
into the interior. A 1001 mb low in the upper tanana valley will
move southeast and deepen to 999 mb as it moves into the copper
river basin, then over prince william sound by Saturday morning.
High pressure associated with a 1025 mb center in the western
bering sea will push northeast over st lawrence island, the
seward peninsula, and the western brooks range Saturday morning,
then slowly rotates south over the lower yukon delta Saturday
evening, and over the southwest mainland by Sunday morning.
Arctic coast and brooks range... A couple weather fronts will move
across the area spreading periods of rain to most of the arctic
coast and plains. The western brooks range will stay relatively
dry, while the eastern brooks range will see another round of snow
above 2000 feet. Snow accumulation up to 4 inches east of the
dalton highway, with less than 2 inches in atigun pass. Winds are
a bit stronger than model solutions suggested and will be gusting
to around 25 mph today and up to 35 mph Saturday. More snow in the
mountains Saturday night.
West coast and western interior... Fairly quiet. Winds north 20 to
25 mph in the chukchi sea and through the bering strait today
diminishing tonight. West winds developing Saturday night will
increase to 15 to 25 mph on the coast south of the bering strait.
Some isolated showers today, but nothing significant. Elevated
surf on north facing coastlines west of CAPE espenberg today.
Central and eastern interior... A few showers around the area
today, but nothing really organized. Will remain mostly cloudy
through the day, but expect some breaks in the afternoon. No
significant winds are expected. No significant change in
temperatures the next couple days.
Coastal hazard potential days 3 and 4... None. A long westerly
fetch will develop over the bering sea Sunday night bringing
elevated water levels to west coast locations south of the bering
strait. Water levels are currently expected to be slightly above
the normal high tide line. Wave action will wash above the normal
high tide line and may cause some minor erosion.
Fire weather Relative humidity values generally above 40
percent with excellent overnight recovery. No significant winds
through the weekend. No thunderstorm activity expected. Go to
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Link to 5 minute data for PAEM
Wind History from AEM (wind in knots)
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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
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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 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.