Calm and mild conditions has and will continue to be the story across Iowa. High temperatures yesterday peaked from 38° at the airport in Mason City to almost 60 degrees in southern Iowa; these temperatures will be even warmer today with highs ranging from the upper 30s northwest to the low 60s southeast. Skies will be relatively clear initially before clouds move in along a cold front. An isolated shower or two is possible, but nothing of any substantiality. The weather begins to become active again on Wednesday into Thursday. Models have come into better consistency with our runs from last evening showing a generally less aggressive solution over the area with lesser snow.
A strong area of low pressure will track northeast through the region on Wednesday night, bringing with it some precipitation from south to north. This will be in the form of rain for most areas south of Highway 30 with the potential for some light snow and very light icing to the north. The heaviest snow will be in the far northeast part of the state — up to an inch or two, whereas southern Iowa may receive up to a half inch of rain (which, with moderate drought over southeast Iowa, this will be warmly-embraced). This upper-level wave will exit by Thursday afternoon, leaving behind a ridge, which thankfully should keep things quiet once again.
As far as temperatures go, Wednesday will be another warm one with highs in the low 30s northwest to upper 50s southeast. Thursday moderates itself into the 30s north to 40s south, but another warm-up will arrive by the weekend with highs ranging from the upper 30s north to mid-50s southwest. The GFS has been bullish on any precipitation trends, so tranquility will likely be the spotlight for the long-term forecast.
Enjoy your Tuesday!