That's not particularly surprising. The ARW cores have that tendency vs NMM. We see it a lot in Colorado. I wouldn't put much faith into it anyways since it's the SREF but it sure is fun to look at sometimes
The ECM ensemble continue a slightly weaker/slower evolution through the Ohio valley and is at least a slight jog east. The STL-IND-DTW track feels like a reasonable middle ground for now.
I'll still take the over for ALEK.
That small circulation just to the west of KLOT looks like trouble. No obvious TDS but its also got 90kt at 450ft so it's gonna produce damage one way or the other.
The ratio of sig severe gusts in this has been extremely impressive. This has to be a high risk upgrade at some point soon. They put out the 1630 update early, surely an early-issue 20z high is in the cards.
Local Storm Report by NWS DVN: 4 ENE Shellsburg [Linn Co, IA] emergency mngr reports TSTM WND DMG at 12:58 PM CDT -- estimated gusts over 100 mph with multiple campers blown over, along with the shelter roof at the park blown off.
Seems as if Tama county has had the worst winds so far, EM reporting up to 100mph gusts there.
At least for DMX's CWA most of the larger cities (DSM/Ames) have siren activation for any warning with 70+