NWS Storm Prediction Center Norman OK
0501 PM CDT Wed Sep 17 2025
AREAS AFFECTED...portions of southern into central Iowa
CONCERNING...Severe potential...Watch unlikely
VALID 172201Z - 172330Z
PROBABILITY OF WATCH ISSUANCE...5 percent
SUMMARY...A couple of additional severe gusts are possible over the
next few hours.
DISCUSSION...An organized multicellular cluster has developed over
southern IA, with a recent history of producing at least one
measured severe gust. This cluster is showing slight bowing
tendencies as it progresses through an ambient environment
characterized by 1000-1500 J/kg MLCAPE. However, vertical wind shear
is ....... more