The local National Weather Service office is the repository of regional severe weather reports. This allows the meteorologist to provide some quality control of reports from field observers, confirming the occurrence and the time of the event.
On the national scale, the Storm Prediction Center posts the entire listing of strong winds, large hail and reported tornadoes. This serves as a preliminary source for information. Eventually the National Weather Services publishes the formal document for historical records as the monthly Storm Data.
Thunderstorms are expected to fire up in central Minnesota early this afternoon.