Wednesday Thunderstorms

11:00 PM Update: Thunderstorms continued to develop in areas of southern Iowa this evening, a tornado watch was issued and is still in effect until Midnight tonight. However these storms have become linear in nature and are no longer severe, in fact no severe reports originated from the state of Iowa tonight.

At this time there are scattered thunderstorms throughout eastern Iowa; essentially east of a Decorah, to Waterloo, to Knoxville, to Leon, IA line. Although none of those storms are severe, there is significant cloud-to-ground lightning occurring in many of the storms south of I80. Heavy rains are also a threat with those storms as they move east during the overnight hours.


4:30 PM Update: Showers and the occasional thunderstorm have been working across the state this morning and now re-firing this afternoon in several areas in the Plains. Severe Thunderstorm watches have been issued for areas of ND/SD/MN and MO/IL for thunderstorms that have developed there and already become severe. Another watch may be issued within the next couple of hours for portions of NE/IA/KS/MO, where the greatest potential for isolated tornadoes seems to exist.

Expect thunderstorms to continue in western Iowa this evening, some moving in from eastern Nebraska and others firing along boundaries in southwest Iowa. Some of these storms may be able to become severe, especially in southwest portions of the state. During the overnight hours, thunderstorms may continue into the central/eastern thirds of the state as well. These thunderstorms will likely be in linear form, meaning the only severe threats if any will be damaging winds or heavy rains. Widespread severe weather is not expected, but isolated severe storms are possible through tonight. More updates possible as the evening progresses...