The Storm Prediction Center has issued a Severe Thunderstorm watch effective until 10pm for the following counties, Audubon, Calhoun, Carroll, Cerro Gordo, Crawford, Emmet, Franklin, Greene, Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas, Sac, Webster, Winnebago, Worth, Wright, Buena Vista, Cherokee, Clay, Dickinson, Ida, O’Brien, Osceola, Plymouth and Woodbury. Thunderstorms are starting to develop along the cold front that is moving into the state late this afternoon. Large hail and damaging winds are the main threats with these storms, but an isolated tornado cannot be ruled out as well.