Dana, Iowa

... Winter Weather Advisory remains in effect until 3 PM CST this
afternoon...
... Winter Storm Warning remains in effect from 3 PM this
afternoon to midnight CST Friday night...

A Winter Storm Warning remains in effect from 3 PM this afternoon
to midnight CST Friday night. A Winter Weather Advisory remains
in effect until 3 PM CST this afternoon.

... Winter Weather Advisory...

* short term trends... an area of rain and freezing rain continues
over the southern half of the state this morning. As it
continues to move north through the state... the precipitation
will mix with sleet and snow before eventually changing to all
snow over northern Iowa this afternoon. One to two tenths of
ice may accumulate by daybreak Thursday. One to five inches of
snow is also expected through that time with the highest amounts
in that range toward the Minnesota border.

* Impacts... travel will be hazardous with snow and ice covered
roads becoming more prevalent throughout the day.

... Winter Storm Warning...

* long term trends... the wintry mix and snow and sleet will
continue late this afternoon and tonight before eventually
transitioning to all snow late Thursday or early Friday. This
change over to snow will be coincident with increasing north to
northwest winds producing greatly reduced visibilities and near
blizzard conditions.

* Total snow and ice accumulations... one to four tenths of an inch
of ice may accumulate with the highest amounts along the Highway
20 and 30 corridors before the change to all snow. By the time
the snow ends Saturday... storm total accumulations should range
from five to ten inches from Atlantic... to Webster City... to
Hampton... with 12 to 17 inches from Denison to Mason City. The
higher amounts of that range should occur farther northwest
toward Estherville.

* Winds... brisk east winds of 15 to 25 mph will be common
through Thursday... however by Friday... winds will become
northwest at 25 to 35 mph with higher gusts.

* Visibility... during the periods of heavy snow Thursday into
Friday... visibilities will generally be less than one mile and
even down to a quarter mile during the heaviest snows. White
out near blizzard conditions may develop over northwest Iowa.

* Impacts... travel will become increasingly difficult in the
warning area over the next several days and will likely be
impossible by Friday as snow accumulates and winds increase.
With around of foot of snow already on the ground in parts of
northwest Iowa... snow depths may reach two to three feet by
the weekend with drifts reaching rooftops of houses.

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow... sleet... or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibility... and use caution while
driving.

A Winter Storm Warning means significant amounts of snow...
sleet... and ice are expected or occurring. Strong winds are also
possible. This will make travel very hazardous or impossible.