Special Weather Statement issued December 19 at 8:37AM CST by NWS La Crosse WI

Snow moves across northeastern Iowa this morning reducing
visibilities to a mile or less at times. There may be brief
periods when visibilities dip below one quarter of a mile in the
heaviest snow. Light accumulations are expected, generally an inch
or less. As the snow comes to an end from west to east during the
late morning, there may also be a brief period of freezing
drizzle. If traveling in northeastern Iowa this morning, be
prepared for wintry precipitation and reduced visibilities. In
addition, winds pick up from the west into the afternoon which may
keep roads slick and lead to reduced visibilities.