The National Weather Service has extended the Winter Weather Advisory into the eastern and far southern counties of the state through Wednesday morning. This includes, Adams, Madison, Polk, Ringgold, Tama, Taylor, Union, Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and Linn counties. The Winter Storm Watch across far northern Iowa has been replaced with a Winter Weather Advisory except in Howard and Mitchell.

* TIMING…RAIN WILL CHANGE TO SNOW AFTER MIDNIGHT AND CONTINUE
INTO WEDNESDAY MORNING. THE SNOW MAY CHANGE BACK TO LIGHT RAIN
BEFORE ENDING LATE WEDNESDAY MORNING.

* SNOWFALL…THE HIGHEST SNOWFALL AMOUNTS AROUND 3 OR 4 INCHES ARE
EXPECTED ALONG AND NORTH OF HIGHWAY 2O. AMOUNTS WILL TAPER OFF
TO AROUND AN INCH TO THE SOUTH TOWARD CEDAR RAPIDS AND
MAQUOKETA. ACCUMULATIONS WILL BE MAINLY ON GRASSY AREAS…BUT
THERE MAY BE A PERIOD OR TWO OF HEAVY SNOW THAT WILL ACCUMULATE
ON ROADS.

* WIND…NORTHWEST WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS
NEAR 40 MPH LATE TONIGHT AND WEDNESDAY MORNING.

* VISIBILITY…PERIODS OF HEAVY SNOWFALL WILL GREATLY REDUCE
VISIBILITIES.

* IMPACTS…ROADS MAY BECOME SNOW COVERED AND SLIPPERY LATE
TONIGHT. SLIPPERY CONDITIONS WILL BE POSSIBLE DURING MORNING
COMMUTE. SINCE THIS WILL BE THE SEASONS FIRST SNOWFALL ADDED
CAUTION IS ADVISED.