Over the past few days we have been keeping our eye on a system that could potentially bring our first chances of snow this season. Tonight a strong cold front will pass through the state dropping temperatures into the mid 40s tomorrow. A low pressure system will then push into Iowa Monday night. It looks like the best chance of precipitation will be in western Iowa back into central and southern Iowa. Moisture is somewhat limited across the north and that is why precipitation chances have been scaled back. Everyone’s main concern is what type of precipitation will we see. Temperatures aloft are cold enough to indicate snow is possible. However, the key factor that will determine if snow will fall is temperatures near the surface. Across the north, temperatures will be near or below freezing so if any precipitation does fall, it will fall in the form of snow. Surface temperatures in the south will be warmer so any precipitation that does fall will fall in the form of a rain/snow mix. No snow totals are anticipated as ground temperatures are still too warm, however, it is possible that a light dusting in grassy areas could occur in the north where temperatures are cooler.
Behind the system, temperatures will remain cool. Freeze warnings are likely anticipated Monday night or Tuesday night before being retired for the season. The rest of the seven day looks to remain dry for now, as a weekend system is uncertain at this point. We will continue to monitor the chance for snow over the next 36 hours and will update you if anything changes on our facebook page and right here at Iowachase.com.