WATERLOO -- Snow crept slowly into town Thursday evening as a winter storm warning went into effect.
Rod Donavon, a meteorologist at the National Weather Service in Des Moines, said the snow would spread across northern Iowa. It was expected to be heaviest in the Iowa Highway 3 corridor and areas to the south.
"Five to eight inches will be common by noon" Friday, he said. North of Highway 3, lesser amounts of 3 to 5 inches were expected.
The storm warning went into effect at 3 p.m. Thursday and continues to 9 a.m. Friday. Snowfall was light initially, but downtown Waterloo streets were covered by 6 p.m. and reports of slick conditions trickled in. Snow was expected to "gradually increase" later, said Donavon. Heaviest snowfall amounts were expected through 3 a.m.
Local road crews were poised to hit streets early and clear them for Friday morning traffic. Cedar Falls public works and parks manager Brian Heath said Cedar Falls crew were making sure priority streets were clear through the evening and then, "rest, regroup and start plowing everything at 4 a.m."
The wind was expected increase to 15-25 mph out of the north, Donavon said, causing "some blowing snow and some areas of drifting snow." Temperatures were projected to drop to the mid- to low-teens by Friday with wind chills of zero to 10 below. Temperatures are expected to continue dropping on Saturday.