The areas that could be effected are Crawford, Carroll, Greene-Boone, Audubon, Guthrie, Dallas, Polk, Cass- Adair, Madison, Warren, Marion, Mahaska, Adams, Union, Clarke, Lucas- Monroe, Wapello, Taylor, Ringgold, Decatur, Wayne, Appanoose, and Davis.
This Hazardous Weather Outlook is for portions of central Iowa. Thursday. A winter Weather Advisory is in effect for the area Thursday. Friday through Wednesday Arctic air will arrive this weekend. This will send overnight low temperatures well below zero, with very dangerous wind chill values overnight and early in the mornings over the weekend into at least early next week.
The winter weather advisory will bring significant travel impacts today into tonight. A powerful cold front will move through the area today with strong northwest winds, falling temperatures and wintry precipitation. Significant impacts to travel conditions will occur. Precipitation will initially start as rain or drizzle early this morning just ahead of the fast moving front and quickly transition to moderate snow with very low visibility this morning. Wet or slushy roads may flash freeze and quickly become icy as temperatures fall this morning. Strong northwest winds gusting above 45 mph will create widespread blowing snow and blizzard conditions at times the remainder of the day into this evening, especially in rural areas of north central into central Iowa. Snowfall totals are not expected to be heavy, but even light amounts may be enough to worsen impacts. Wind chills fall below zero by this evening into tonight, which could serve, as another hazard should motorists become stranded. Polk-Warren-Marion-Mahaska-Clarke-Lucas-Monroe-Wapello-Decatur- Wayne-Appanoose-Davis- Including the cities of Des Moines, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Osceola, Chariton, Albia, Ottumwa, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville, and Bloomfield 245 AM CST Thu Feb. 4, 2021, ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 a.m. THIS MORNING TO 6 a.m. CST FRIDAY... Snow and blowing snow expected. Total snow accumulations of 1 to 3 inches. Winds gusting as high as 40 mph. Visibility may drop to as low as one-quarter of a mile. Portions of central into south central Iowa. From 6 a.m. Thursday to 6 a.m. Friday. Plan on slippery road conditions. Blowing snow could significantly reduce visibility. The hazardous conditions will impact the morning commute and possibly the evening commute. Near blizzard conditions are possible at times due falling snow and blowing snow. For more information from the National Weather Service visit https://weather.gov/desmoines