Compare current drought conditions vs. May, 1934. The drought patterns have reversed.
http://www.drought.unl.edu/dm/monitor.html
http://www1.ncdc.noaa.gov/pub/data/cmb/drought/historical-palmers/193405-pmdi.gif
Compare current drought conditions vs. May, 1934. The drought patterns have reversed.
http://www.drought.unl.edu/dm/monitor.html
http://www1.ncdc.noaa.gov/pub/data/cmb/drought/historical-palmers/193405-pmdi.gif
There was a May heatwave in 1934 that brought 110 temperatures to Missouri and 112 in Minnesota. City records for May include 108 in Waterloo, IA and 106 in Minneapolis. Now it’s a rare day in May when the same places reach 90 with all this global warming going on.
90 degrees in Minnesota in May:
http://minnesota.cbslocal.com/2011/05/10/temps-could-reach-90-degrees-tuesday/
I guess you are agreeing with Andy that it is a weather rare event caused by a deep depression of the Jet Stream pulling warm moist air from the gulf that far north in front of the low pressure system causing severe thunder storms.