(Update 6:20-a.m.) THE NATIONAL WEATHER SERVICE HAS EXPANDED THE WINTER WEATHER ADVISORY TO AUDUBON AND GUTHRIE COUNTIES.

Monona-Harrison Pottawattamie & Shelby Counties: Winter Weather Advisory in effect until 1-p.m. today (Friday). Audubon-Guthrie-Sac-Crawford & Carroll Counties: Winter Weather Advisory in effect until 6-p.m. today.

* TIMING…SNOW WILL CONTINUE THIS MORNING AND SLOWLY INTENSIFY
INTO MID MORNING. HEAVIEST SNOW WILL OCCUR LATE THIS MORNING
WITH THE SNOW ENDING BY LATE AFTERNOON.

* STORM TOTAL SNOW ACCUMULATIONS…2 TO 5 INCHES.

* WINDS/VISIBILITY…SOUTH AT 15 TO 25 MPH AND GUSTY.
* VISIBILITIES WILL BE REDUCED AT TIMES TO LESS THAN ONE HALF
MILE IN SNOW. SOME PATCHY BLOWING SNOW IS ALSO EXPECTED.

* IMPACTS…SLICK…SNOW-COVERED ROADS. REDUCED VISIBILITIES…
TRAVEL WITH CAUTION. REDUCE YOUR SPEED AND INCREASE THE
SPACING BETWEEN YOU AND THE VEHICLE AHEAD OF YOU. ALLOW ENOUGH
TIME FOR STOPPING IN SLICK CONDITIONS. HOLIDAY TRAVELERS
SHOULD REMAIN ALERT TO ROAD CONDITIONS BY CHECKING THE LATEST
ROAD REPORT PRIOR TO HEADING OUT.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES, AND USE CAUTION WHILE
DRIVING.