Tornado Watch for Story county

**Clones21** · 05-11-2011, 06:42 PM

Super Doppler 8 LIVE - Live Radar - KCCI Des Moines

**Clones21** · 05-11-2011, 06:48 PM

This storm is going to unload on Des Moines.

**cy8** · 05-11-2011, 07:07 PM

Not to bad in the DSM area, kind of disappointed. :(

**enisthemenace** · 05-11-2011, 07:07 PM

Originally Posted by Clones21

This storm is going to unload on Des Moines.

Pretty good, swirling wind just passed through, but now it's dead still. "Calm before the storm"?

**Clones21** · 05-11-2011, 07:15 PM

The storm seems to have shifted a little bit. Heading more east than north now.

**ISUAlum2002** · 05-11-2011, 07:16 PM

Originally Posted by enisthemenace

Pretty good, swirling wind just passed through, but now it's dead still. "Calm before the storm"?

Yeah, this is weird. The strongest parts of the storm dissipated right when it hit the west mixmaster.

**Wesley** · 05-11-2011, 07:25 PM

Looks like they have a box drawn now with DSM in it.

**enisthemenace** · 05-11-2011, 09:33 PM

Originally Posted by ISUAlum2002

Yeah, this is weird. The strongest parts of the storm dissipated right when it hit the west mixmaster.

I've heard a theory about why this might happen, more often than not, in Des Moines, and it's not the "two rivers" theory. I was a meteorology major for awhile (damn Physics). Anyone familiar with the theory I'm thinking?

**ISUAlum2002** · 05-11-2011, 10:12 PM

Originally Posted by enisthemenace

I've heard a theory about why this might happen, more often than not, in Des Moines, and it's not the "two rivers" theory. I was a meteorology major for awhile (damn Physics). Anyone familiar with the theory I'm thinking?

Well, densely populated areas usually are a few degrees warmer than the outlying areas. Maybe the change in air temperature has an effect on the storm cells as they hit the edge of the city.