Increasing tornadoes or better information gathering?

John Kerry’s comment about the recent tornadoes in the southeastern USA being caused by “global warming” has caused more than a few dustups on the Internet blogs in the last couple of days. So, from the perspective of a former TV meteorologist, I thought I’d share some of my thoughts about modern tornado statistics. Graph from NWS/NOAA. Smaller (F1) tornadoes seem to…

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Cold and Warm Bias in a Weather Station

Early on in my www.surfacestations.org project I got complaints like “why don’t you ever show a cooling bias?”. Problem was, there weren’t a lot of cold bias stations to show. Other than shading, and in one case in Washington state where the station was getting mist from a dam spillway, there just weren’t many examples. This…