By Paul Homewood

An excellent rebuttal by meteorologist Robert Endlich of extreme weather claims in the US:

In describing the errors in the Fourth National Climate Assessment, ‘NCA4’, I’ll use the words from the Executive Summary which purport to link climate changes in the USA to global climate change.

Photo by Pixabay

The first claim, “The last few years have also seen record-breaking, climate-related weather extremes,“ is shown to be false, simply by examining climate records, some from the National Climate Data Center.

Tornadoes have been decreasing over the past six decades as temperatures moderate from the significant cooling of the 1940s to 1970s.  As a basic knowledge of meteorology teaches, it is the pole to equator temperature difference that drives the intensity of cold season storms and especially the spring-season storms which bring the extremely strong tornado outbreaks.

Emblematic of the 1965 spike seen in Figure 1 below, is the 1965 Palm Sunday Tornado Outbreak, which occurred when I was an Air Force shift forecaster on duty that day.  I clearly recollect my first glance at the weather map that day was followed with a sense of dread; I had studied and presented to my class at Texas A&M the year before on severe weather, using the Dallas Tornado of 1956 as a model to understand how the weather situation controls such outbreaks.

Endlich goes on to look at hurricanes, heatwaves and wildfires.

Full post here.

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July 4, 2019 at 05:33AM