Last week Wisconsin’s Governor Walker pronounced drought emergencies for 40-plus counties in the land of cheese[1]. I’m not sure what that means other than the obvious fact that it is dry and it’s been hotter than bejeezus for quite some time, with the peak being the week of Independence Day. A “blocking” high pressure system was parked in the middle of the country. High pressure systems result in sinking air, the opposite of low pressure systems where surface air rises to cold altitudes causing clouds and rain. Sinking air results in no clouds and heat of compression. Heat of compression...
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