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Tornado sirens giving way to new warning technology

Tornado Sirens - USA Today

On April 10, 2011, tornadoes ripped across Wisconsin, tearing roofs off houses, toppling trees and snapping power lines. In many places, the high winds were greeted with silence as some Cold War-era warning sirens failed because of lost power and other issues — just when they were needed the most.

 

Bits Blog: How New Yorkers Adjusted to Sudden Smartphone Withdrawal

With only sporadic access to text messaging and the Web, many in Hurricane Sandy's no-power zone quickly cobbled together systems for passing along information and arranging when and where to meet.

 

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