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Arctic Air Mass Lingers for Areas of the East; Critical Fire Weather for the Plains; Active Weather Pattern for Hawaii

Arctic air lingers for the east, however, winds will slowly subside and a slow moderating trend starts during the week. Moisture continues to provide rainfall and higher elevation snow for the Pacific Northwest, northern California and northern Rockies through Monday. For the State of Hawaii, dangerous surf conditions with strong winds and heavy rainfall will impact the islands through Monday. Read More >

Overview

A fast moving clipper system overspread the region on the morning of December 13th. In general, a widespread 2 to 5 inch event occurred along and south of the Highway 30 corridor. There were some very localized swaths of 6 inches or more from southwest of Iowa City to Wapello and Muscatine IA, and from far southeastern IA into portions of west central IL. The greatest impact was dangerous travel conditions on Interstate 80 in Iowa, where several multi-vehicle accidents resulted in the highway being closed much of the afternoon and evening.

In addition, temperatures dropped sharply behind the departing system, with sub-zero air temperatures and wind chills in the -20 to -30 degree F range for several hours Sunday morning Dec 14th. 
 

NWS Official Totals

Moline: 3.8"
Davenport NWS: 2.3" 

 

Image
Snow Summary Infographic

Temperature / Wind Chill Infographic Top Image: I-80 MM 206 near Willamsburg, IA (926 am 12/13)
Bottom Image: I-80 MM 267 near Tipton, IA (422 pm 12/13)
Images Courtesy: IA DOT (click to enlarge)
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