A Severe Thunderstorm Watch has been issued and will be in effect until 11am. Widespread damaging winds are likely, with isolated significant gusts reaching as high as 85 mph possible. Isolated large hail 1.5 inches in diameter is possible, and due to the conditions, a tornado is possible.
A fast moving and intense bow will surge across the watch area this morning, posing a risk of widespread damaging wind gusts. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 25 miles south of Denison IA to 35 miles south southeast of Cedar Rapids IA.
A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes.