Could it be? The possibility of a tornado in SW Iowa tomorrow? Maybe based off tonight's 0z NAM. It brings in a fairly weak but sufficient system into the NE/IA hopefully allowing for enough forcing to fire off some storms, then it is off to the races with a decent SW LLJ to bring in moisture (mid 60s-upper 60s), allowing for strong instability to develop add 0-3km helicity values of 500+ m2/s2, and 0-1km helicity over 200 m2/s2 to the mix and you have a dangerous combo for monster supercells and a few tornadoes.
Check out this awesome forecast sounding for 0z Sunday for Clarinda, IA!
My dad and I will be chasing this setup so be sure to stay tuned to our live tracker tomorrow.
Saturday, May 30, 2009
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