143 
fxus63 kmpx 050333 aab 
afdmpx 


Area forecast discussion...updated 
National Weather Service Twin Cities/Chanhassen Minnesota 
1035 PM CDT Friday Jul 4 2008 


Updated for aviations discussion below... 


Discussion... 
in the near term...both the surface and upper high pressure ridge 
that had dominated the weather the past few days over the Midwest 
..will finally will begin to loosen its grip over the weekend. In 
the meantime...look for the string of dry weather to continue 
another day over the upper Midwest. 


Short term models have been consistent in flatten longwave upper 
ridge over central Continental U.S.. this will allow a couple of shortwave 
troughs to move over the upper Midwest late Saturday night/Sunday 
and again on Monday. The weather will remain dry through Saturday 
evening across much of the forecast area. There still remains a 
chance of rain showers over the entire forecast area by miday Sunday. 
Airmass is forecast to moisten in the boundary layer as mean relative humidity 
fields increase to 70 percent by 48 hours. 


Medium and long range forecasts...Monday through Friday...weather 
pattern will remain unsettled as a series of weak short wave troughs 
and disturbances trek over the upper Midwest during the period. 
Zonal upper air flow will continue into the end of the work week 
with Pacific modify airmass over the forecast area. Dry soil 
conditions in place across the southern half of Minnesota...maximum temperatures 
should not have a hard time reaching the middle to upper 80s. 




&& 


Aviation.../06z taf issuance/ 


VFR conds will prevail during forecast period. Will continue some middle clouds 
mention with warm air advection pattern over much of Minnesota...temperature broken at 
krwf/kaxn/kstc and kmsp. 00z NAM continues to spread this east 
during Sat morning into wc WI. Will continue this trend as well. 
Southerly wind to increase as well during the morning as low pressure approaches 
from the west. Spds will be from 10 to 15 kts...with gusts 20 to 25 kts 
developing most areas by 18z. Will remove gusts at 01z sun and mention 
more middle clouds increasing at kaxn as front move closer to western Minnesota. 
Will keep area dry through 06z sun however. 


&& 


Mpx watches/warnings/advisories... 
Minnesota...none. 
WI...none. 
&& 


$$ 


Jvm/dwe