The Mercury News

Experts: Lack of planning caused cold catastroph­e

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This week’s killer freeze in the U.S. was no surprise.

Government and private meteorolog­ists saw it coming, some nearly three weeks in advance. They started sounding warnings two weeks ahead of time. They talked to officials. They issued blunt warnings through social media.

And yet catastroph­e happened. At least 20 people have died and 4 million homes at some point lost power, heat or water.

Experts said meteorolog­ists had both types of sciences down right: the math-oriented atmospheri­c physics for the forecast and the squishy social sciences on how to get their message across.

“This became a disaster because of human and infrastruc­ture frailty, a lack of planning for the worst case scenario and the enormity of the extreme weather,” disaster science professor Jeannette Sutton of University at Albany in New York said.

The event shows how unprepared the nation and its infrastruc­ture are for extreme weather events that will become bigger problems with climate change, meteorolog­ists and disaster experts said.

Insured damages — only a fraction of the real costs — for the nearly weeklong intense freeze starting Valentine’s Day weekend are probably $18 billion, according to a preliminar­y estimate from the risk-modeling firm Karen Clark & Company.

Kim Klockow-McClain heads the National Weather Service’s behavioral insights unit, which focuses on how to make forecasts and warnings easier for people to understand and act on.

People heard the message and got the warnings, she said. For various reasons — thinking cold is no big deal, not having experience­d this type of extreme cold, and focusing more on snow and ice than the temperatur­e — they were unprepared, Klockow-McClain said.

“The meteorolog­y was by far the easiest part of this,” Klockow-McClain said.

Private winter storm expert Judah Cohen of Atmospheri­c and Environmen­tal Research first blogged about the danger on Jan. 25. He said the meteorolog­ical signal from the Arctic, where the cold air was escaping from, “was literally blinking red. It was the strongest I’d seen.”

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