An eminent climate scientist explains what caused the record rains in Texas

“With the lack of a positive trend in monthly springtime precipitation, there is no direct observational evidence that the record-setting May 2015 statewide rainfall total in Texas had an anthropogenic component.”

Preparing for Extreme Weather

From the NCAR-Wyoming Supercomputing Center.

The mainstream news media have become more cautious in their coverage of extreme weather, unlike their previous uncritical reporting of everything as climate change. For example, see this by USA Today: “Wild weather shifts in Texas spark concern about “new normal’.” And “Climate Change May Have Souped Up Record-Breaking Texas Deluge” by Elizabeth Harball and Scott Detrow at Scientific American on 27 May 2015 — “Deadly downpours flooded Texas and Oklahoma and may have been exacerbated by global warming.” The link to climate change is strongly implied, but not stated as definite. The text reports climate scientists’ uncertainty about attribution of events to climate change.

Activists ignore the science, preferring simple narratives. Bill Nye, the children’s science guy, says on CNN: “The floods in Texas, the strengthening storms… these things are a result of human activity making things worse.”  As usual, the most over-the-top story comes from fantasy writer – climate activist Robert Marston Fanney (bio here) at his blog RobertScribbler: “The Merciless Rains of Climate Change Hammer Houston, Southeast Texas.”

Eventually scientists will produce papers with more definitive information. Here’s an excerpt from an early analysis (click on the link to read it in full)…

The faucet: Informal attribution of the May 2015 record-setting Texas rains

by John W. Nielsen-Gammon (see his bio)
Texas state climatologist and professor of atmospheric sciences at Texas A&M
From NOAA’s Annual Climate Diagnostics and Prediction Workshop, Oct 2015

Analysis: More nonsense from AP’s Seth Borenstein on floods allegedly worsened by ‘global warming’

image

http://www.latimes.com/business/realestate/sns-bc-us–houston-politics-of-flooding-20160518-story.html

 

More nonsense from Seth Borenstein:

 

With clay soil and tabletop-flat terrain, Houston has endured flooding for generations. Its 1,700 miles of man-made channels struggle to dispatch storm runoff to the Gulf of Mexico.

Now the nation’s fourth-largest city is being overwhelmed with more frequent and more destructive floods. The latest calamity occurred April 18, killing eight people and causing tens of millions of dollars in damage. The worsening floods aren’t simple acts of nature or just costly local concerns. Federal taxpayers get soaked too.

Extreme downpours have doubled in frequency over the past three decades, climatologists say, in part because of global warming. The other main culprit is unrestrained development in the only major U.S. city without zoning rules. That combination means more pavement and deeper floodwaters. Critics blame cozy relations between developers and local leaders for inadequate flood-protection measures.

http://www.latimes.com/business/realestate/sns-bc-us–houston-politics-of-flooding-20160518-story.html

 

The nearest USHCN station to Houston is Liberty, 40 miles away. Below is the whisker plot for daily rainfall there.

 

broker

http://cdiac.ornl.gov/cgi-bin/broker?_PROGRAM=prog.climsite_daily.sas&_SERVICE=default&id=415196&_DEBUG=0

 

There is clearly no evidence of any rising trend in extreme rainfall. By far the wettest day came way back in 1994, when 18.5 inches fell on 18th October.

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