NOAA

Joplin Tornado / NOAA
2:46 pm
Tue September 20, 2011

Update: NOAA says "vast majority" of residents didn't respond to first Joplin tornado siren

Updated 2:03 p.m. with link to full report

Updated 12:46 p.m. with information from report

Originally published 10:46 a.m.

The federal agency that oversees the National Weather Service says warning sirens and notifications went out well ahead of the devastating Joplin tornado. But it says residents didn't respond quickly enough to the sirens warning of the impending twister.

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