Wednesday, April 19, 2017
Wednesday Evening Storm Update
Strong to severe thunderstorms have been developing over far western Iowa, eastern Nebraska and northeast Kansas. Locally, storms from earlier in the day clearing allowing a little more sun to develop during the mid to late afternoon. This helped to warm temperatures into the mid and upper 60's. East winds, however, have cooled temperatures from Janesville to Rochelle into the low 50's.
Skies have cleared from the rain over southern Wisconsin and northern Illinois, but not for long as what's developing back out west moves east with an advancing cold front and low pressure system.
A warm front sits over central Illinois with temperatures in the 70's and 80's to the south and 50's and 60's to the north. The front remains in place through much of the evening, lifting north with the passage of low pressure over Iowa and into Wisconsin. As this happens the storms out west will move east, weakening a little as they do. Storms that do form and maintain their strengthen closer to the warm front over northeast Iowa, southwest Wisconsin and northwest Illinois could pose a hail and wind threat between 10pm and 2am.