Tornadoes?

[iowasocialist]

Can anyone explain to me why the tornado siren has blown 4 times here in Des Moines tonight?

I am listening to Iowa Public Radio, and they have had no tornado warnings for Polk County.

Thanks...

[AmandaMae]

1. there were tornado sightings in Winterset and Creston,

from what I gather. A tornado had touched ground 27 miles southwest of Des Moines. But they've lifted the warning from Polk County already.

[Dr. Forrester]

2. There were some warnings

There were some warnings to the south and west of Des Moines. The storms are still going as of 8:20 pm but the tornadoes have fizzled out, a good part of the state is under a watch until 9 pm. The Weather Channel has been covering it for the last couple of hours.