We had another beautiful fall day with temperatures making it into the upper 50’s across northeast Iowa, and the lower 70’s across southeast Iowa. Wednesday will bring another beautiful fall day, however, a small speed bump in the forecast will come Wednesday evening into Thursday.
Our next system will be approaching the state by late afternoon Wednesday. You will notice clouds on the increase by Wednesday afternoon. Rain will then begin to enter western Iowa after 7pm. CAPE values will be weak, but there will be enough instability that a few rumbles of thunder are not out of the question. The severe weather threat is non existent, but the only concern with the system will be the potentially modest rainfall totals. There will be plenty of moisture working its way up from the gulf of Mexico, and this will provide for decent rainfall totals.
The heaviest of the rainfall will fall across central Iowa, with a few locally higher amounts possible across northwest Iowa. Places like Creston, Des Moines, Ames, and Sioux City, may see a half inch of rain. For the rest of the state, rainfall totals will be around a quarter of an inch. The rain will then quickly exit the state by Thursday mid morning, allowing for clearing by Thursday afternoon.
The hope would be to see as little rain as possible for the farmers sake. Right now many farmers are trying to get their crops out of the fields, and this is hard to do when we keep getting rain. Only 19% of crops have been harvest and this is down 27 points from average. However, the good news is no matter how much rain we do see Wednesday evening into Thursday, the weekend will be dry. Even better news, temperatures will be warming into the 60’s and 70’s. By Sunday, some places across southwest Iowa may see the upper 70’s. This will hopefully allow enough drying for the farmers to return out into their fields before our next system moves in on Monday and brings around round of rain.