A powerful storm system will move across the central plains starting later tonight, maximizing Monday and ending later Tuesday. Read on for the full details…
A strong surface low will continue to deepen tonight sliding into the Oklahoma/Texas panhandle and then advancing off to the northeast later Monday into Tuesday. Light snow will begin to work into northwest Iowa after midnight tonight and continue to branch out across extreme western Iowa through Monday morning. The main arm band of moderate to heavy snowfall will then start to work into southwest Iowa late Monday morning and then into central Iowa by early Monday afternoon. Soundings indicate that some of this snow may be mixed with rain for a short time across central Iowa before quickly transitioning to all snow.
Once Monday evening hits, the main axis of moisture will continue to pivot into east/southeast Iowa heading toward Tuesday morning. The ISC heavy snowfall model is showing rates on the upper scale of 0.5-1.0″ per hour for a time Monday night through Tuesday across the central and east forecast zones which is the reason I have upped totals in this area. Snow will gradually taper off from west to east during the day Tuesday. Areas east of I-35 across eastern Iowa should continue to see a light to moderate snow Tuesday evening before wrapping up early Wednesday morning.
After crunching the numbers, snowfall accumulations of 6-12″ will be likely in the magenta shaded zone with 2-6″ of snow elsewhere. As snow is tapering off from west to east on Tuesday, gusty northerly winds will increase on the backside of the system which may lead to greatly reduced visibility and potential white-out conditions through Tuesday night before the system moves off to the northeast.
Forecast Radar –
Snow Forecast –
The only risk to this forecast is for totals to trend up in northwest Iowa due to a very long duration event.
This forecast update is brought to you by GOES Insurance. We specialize in all of your insurance needs. Visit us online at goesins.com or give us a call at 712-200-GOES (4637) to get started. Make the switch to GOES and save money today!