Significant storm system is ahead late Friday to Saturday night.
Southeast to south winds may gust 30-40 mph Friday night-Saturday morning.
Northwest winds Saturday evening may gust 40-50 mph.
Friday evening, some snow should reach western Benton, Warren to Newton counties 5-6 p.m.
It will then overspread the area, but turn to sleet, then freezing rain relatively quickly.
Blue is snow, red color is sleet, purple is freezing rain & green rain:
Ice should change to rain by 1 a.m. in our southwestern counties, then the entire viewing area got to rain by 4 a.m.
Rain should end as some snow Saturday midday-afternoon.
1" or less of snowfall is possible before changing to ice. Another less than 1" is possible Saturday as rain ends as snow.
Up to 0.15" of glaze ice & 0.1" of sleet is possible. Icy roadways are likely Friday evening to Friday night before ice changs to rain as temperatures rise from 29-32 to 37-45.
0.75-1.50" of total liquid is possible.
This may cause rivers to rise again Sunday-Monday above flood stage.
The coldest air of the winter so far should arrive Sunday-Sunday night with bitter wind chills & well-below normal temperatures, even without much snow pack at all here. It would be much colder if we had a snow pack.
With a snow pack, parts of Iowa may drop to -27 Monday night. Part of our area will drop to 0.
Wind chills may drop to as low as -20 in the area Sunday morning.
