A Tornado Watch is in effect for Western and Central Iowa until 2 AM. This include Polk, Dallas, and Story Counties. A Severe Thunderstorm Watch is in effect in North Central Iowa until 2 AM. Humboldt and Algona counties are included in that watch.
Western and central Iowa are under a slight risk of severe weather, according to Meteorologist Megan Salois. A strong cold front is moving across Central Iowa tonight.
Storms first formed in Eastern Nebraska and South Dakota. These storms are moving along the cold front into our warm, humid and windy environment that developed during the afternoon hours. The storms have intensified and a few isolated tornadoes have occured with the first storms that moved into the western side of the state during the early evening.
The main threat with this line of storms will be damaging winds and possibly some hail. There will also be torrential rain fall and frequent lightning. As the storms cross I-35 and move into Eastern Iowa, they will weaken.