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Northern Alaska forecast discussion 
National Weather Service Fairbanks Alaska 
206 PM akdt Sat Mar 20 2010 


Synopsis... aloft...a strong high over the Arctic Ocean north of 
Barrow will persist into Tuesday. A trough aloft along the West Coast 
of Alaska will weaken slowly through Monday. There are scattered snow 
showers along this trough that will diminish to flurries by sun. 


A second trough aloft in northeastern Alaska will move south to 
a Dawson to Tanana location by 4pm sun...then strengthens Monday as 
another short wave from the northeast merges with this feature. 


At the surface... 
an Arctic front from Dawson to Bettles this afternoon will move 
to a burwash Landing to Denali to Ambler location by 4pm sun. 
850 mb temperatures will fall 2c behind this front this afternoon 
and sun. This will cause surface temperatures to fall about 5f 
each day. Temperatures will remain cool through Wednesday. Expect 
northeast winds 10 to 20 miles per hour along and north of this front. 


An old occluded front over the southeast interior will dissipate 
tonight. This will cause scattered snow showers to continue over 
the Tok and Northway areas this evening...becoming flurries after 
midnight. 


A 1044 mb high north of Barrow will persist into Monday. This will 
cause east winds of 15-20 miles per hour and areas of blowing snow to 
continue through Monday along the Arctic coast. Wind chills will be 
near advisory levels at 45 to 50 below. 


Discussion... 
models appear to initialize well and show similar solutions 
through Monday...beyond that point we continued to rely more with 
the HPC solution. 


&& 


Afg watches/warnings/advisories... 
brisk Wind Advisory for pkz230-pkz240-pkz245. 
&& 


$$ 


Rl Mar 10 

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