Here are the storm reports from the NWS in LaCrosse WI. The bold ones are funnel cloud or tornado reports. Some of these are from Minnesota and not just Iowa.

GMT Time County Location Type Magnitude Comment
06/18/2009 00:26 Floyd 2 S Charles City,IA FUNNEL CLOUD 0 brief funnel cloud reported by broadcast media
06/18/2009 00:26 Floyd 2 E Rockford,IA FUNNEL CLOUD 0
06/18/2009 00:26 Floyd 2 Ne Rockford,IA FUNNEL CLOUD 0 trained spotter reported a funnel cloud at 190th street and glass avenue
06/18/2009 00:33 Dodge 1 S Claremont,MN HAIL 0.75
06/18/2009 00:33 Mower 3 Se Blooming Prairie,MN FUNNEL CLOUD 0
06/18/2009 00:42 Howard Elma,IA HAIL 0.75 pea to dime size hail in town
06/18/2009 00:54 Steele 3 N Blooming Prairie,MN TORNADO 0 tornado just north of blooming prairie
06/18/2009 01:08 Floyd 4 W Bassett,IA HAIL 1
06/18/2009 01:08 Mower 1 Nw Austin,MN TORNADO 0 large tornado on the ground with debris on the northwest side of austin
06/18/2009 01:10 Mower Austin,MN TORNADO 0 large amount of damage in austin and especially on the north side. minor injuries being reported thus far.
06/18/2009 01:11 Floyd 4 Nw Nashua,IA TORNADO 0
06/18/2009 01:20 Howard Lime Springs,IA HAIL 1
06/18/2009 01:25 Floyd 4 Nw Nashua,IA TORNADO 0
06/18/2009 01:44 Mower 5 Nw Adams,MN FUNNEL CLOUD 0
06/18/2009 01:56 Dodge Claremont,MN HAIL 0.88
06/18/2009 01:57 Mower 3 Nw Le Roy,MN HAIL 0.75
06/18/2009 01:58 Chickasaw 3 Nw New Hampton,IA HAIL 0.75
06/18/2009 02:13 Mower 3 Nnw Le Roy,MN HAIL 1.75
06/18/2009 02:23 Howard Lime Springs,IA HAIL 1.75
06/18/2009 02:56 Howard Elma,IA HAIL 1
06/18/2009 02:56 Howard Cresco,IA HAIL 0.75
06/18/2009 03:09 Fayette 5 W West Union,IA HAIL 0.88

A likely storm assessment will be made in Austin MN tomorrow on how strong the tornado was when it moved over Austin this evening.