All of Iowa, Severe Weather

Severe Parameters for Saturday

STP (Significant Tornado Parameter)
SCP (Super Cell Parameter)
SIGSVR

Here are the parameters from the 00z NAM model run at 7pm Saturday. All of the parameters are close to the top of all three scales across a large portion of the state. Also not featured on here is the CAPE values, which will be in the 1200-2400 J/kg (possibly up to 3000 J/kg according to some models) and a capping layer that will be anywhere from non-existant to moderately capped. Any cap that forms will forgo thunderstorm development until later in the afternoon and evening, possibly at or after sunset. Any storms that do form will likely become severe and could have any form of severe weather.