Cities rethink high-tech alert systems – USA Today

Cities are having second thoughts about alerting residents to natural disasters and catastrophes via their cellphones and computers because of the expense, technological hurdles and whether it’s the best way to warn.

Alert systems that issue e-mails and text messages for catastrophes big and small — from tornadoes to traffic jams — have been adopted across the United States. Although many communities are satisfied with the systems, others say their experiences have been rocky.