Inactive Jan-Apr vs. May

[Boris Konon]

So appears that it could go either way. Note what happened in 03 and 04!

http://www.norman.noaa.gov/2010/04/can-tornado-activity-through-april-portend-may/

 

[Mark Ellinwood]

I'm thinking late April (i.e. now) through early June will put us within the one sigma range. Gogo active May!