A very cold upper level Arctic low dropping south over the Western
Interior will bring an anomalously cold airmass to the area through
the weekend. There will be clouds, periods of precipitation and even
periods of snow above 2000 feet, but low- lying areas that clear
during the overnight and early morning hours will see temperatures
drop quickly into the low to mid 30s. Cloud cover increases across
the Interior Saturday afternoon which will significantly limit early
Sunday morning cooling keeping low temperatures in the upper 30s and
40s, but isolated areas that clear may still develop frost. Frost
becomes more likely Monday morning as cloud cover dissipates. Frost
is unlikely for all but the lowest lying valleys and along rivers.
