717 
fxus63 kdlh 092111 
afddlh 


Area forecast discussion 
National Weather Service Duluth Minnesota 
311 PM CST Friday Jan 9 2009 


Discussion... 
through Monday... 
upper level shortwave moving rapidly to southeast. Cold dry surface ridge has suppressed 
sig snow accums to the S of our County Warning Area. Sat should remain dry as surface 
ridge transits the area. Return of lolvl warm air advection and a pair of quick 
moving S/waves in amplifying northwest flow aloft will bring small chances of 
snow for sun and Monday...but systems will again be fairly dry. As upper 
level ridge amplifies and sharpens along West Coast of 
noam...trajectories will bring air down from near the North Pole for 
the start of a cold week. 


Tuesday through Friday... 
a progressive northwesterly flow regime is prognosticated to continue 
through the extended period...with temperatures remaining near or 
below normal. A series of shortwaves from Canada are expected to dig 
southeast across the upper Midwest. However the only shortwave that 
has the potential to bring appreciable snowfall to our County Warning Area will 
arrive on Tuesday. Because of the cold pattern...there will continue 
to be a chance of lake effect snow showers along the South Shore of 
Lake Superior through the extended period as well. 


&& 


Aviation... 
areas of MVFR ceilings will affect the twin ports area through early 
this evening. Otherwise VFR conditions are expected through 
Saturday. 


&& 


Point temps/pops... 
dlh -4 14 0 15 / 10 10 10 20 
inl -10 13 -3 12 / 10 0 20 20 
brd -10 15 -2 16 / 10 10 20 20 
hyr -10 16 -2 15 / 10 10 20 20 
asx -2 16 3 16 / 10 10 10 20 


&& 


Dlh watches/warnings/advisories... 


Minnesota...none. 
WI...none. 
Ls...none. 


$$ 


04/berdes