Skies become mostly cloudy tonight. A few flurries may be possible tonight through early Tuesday, but the main event will kick in Tuesday afternoon.
Winter Storm alerts in place across the state. A Winter Storm Warning begins at 9 AM for far southern Iowa. A Winter Storm Warning begins for central Iowa at noon Tuesday. And a Winter Weather Advisory begins at noon for northern Iowa. All warnings and advisories expire at 6 AM on Wednesday.
- Hwy 20 to Missouri Border
- Hwy 20 to I-80: 2 to 4”
- I-80 to Hwy 34: 3 to 5” (Des Moines: 3.5 to 4.5”)
- Hwy 34 to Missouri Border: 4 to 6” (locally higher amounts possible)
Over what period
- Hwy 20 to I-80: 3 PM Tuesday through 6 AM Wed
- I-80 to Hwy 34: Noon Tuesday through 6 AM Wed
- Hwy 34 to Missouri Border: 9 AM through 6 AM
Heaviest snow in Des Moines – from 5 PM to 10 PM Tuesday
Snow will be heaviest on Tuesday during the afternoon and early evening, potentially making a mess of the evening commute. Des Moines is expected to see around 4" of snow, with 6" possible along the Missouri border.
Winds will be strong during and after the snow, with wind gusts of 30 to 35 mph possible. In southern Iowa, this will make travel difficult through early Wednesday. Then, as temperatures drop, dangerous wind chills will be possible Wednesday as well.
Temperatures will remain cold through the rest of the week with highs only in the teens.