321 
fxus66 kmfr 211026 
afdmfr 


Area forecast discussion 
National Weather Service Medford or 
326 am PDT sun Mar 21 2010 


Discussion...a cold front is moving ashore early this morning. Up 
to three quarters of an inch of rain has been reported in southern 
Curry County and gusty southeast winds are occurring in the Weed 
area. The front is expected to move into southwest Oregon this 
afternoon with upstream short wave helping to enhance the 
dynamics. As a result precipitation should start begin in the 
Rogue Valley middle to late morning and become more steady by early 
afternoon. Snow levels will remain above pass levels today 
lowering to around 5000 feet this evening...and further to 3500 
feet overnight. The front is expected to push through Lake County 
tonight with precipitation decreasing except in upslope flow. 
Cooler air will move into the area Monday and Monday night 
temperatures could dip to near freezing for the Rogue Valley if 
significant clearing occurs. A ridge will move into the area on 
Tuesday and will bring temperatures back to above seasonal norms. 
For early to middle of next week. 


The latest GFS brings another front inland around Wednesday night 
and seems to be in close agreement to the European model (ecmwf). Did not make any 
changes to the extended at this time but day shift may want to 
increase probability of precipitation and sky cover for Wednesday night and Thursday. The 
second half of next week looks unsettled with a series of Pacific 
fronts moving inland for periods of clouds and rain showers. 
Fb 


&& 


Aviation...areas of MVFR ceilings should move into the forecast area 
from late morning through early this evening as rain showers 
increase. The front is expected to move across the Cascades by 
early afternoon and winds in the Shasta Valley should turn toward 
the west and decrease. 




&& 


Mfr watches/warnings/advisories... 
or...none. 


California...none. 


Pacific coastal waters...none. 


$$ 


08/99/99