U.S. flag

An official website of the United States government

Government Website

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Safely connect using HTTPS

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


  1. Media Library
  2. Videos
  3. CAUSE IV Scenario 2

CAUSE IV Scenario 2

The CAUSE IV Scenario 2 video focuses on using alerts and warnings, social media, and existing public communications channels like 2-1-1 to alert the public about an impending tornado, gather information for targeting response efforts, and assessing damage quickly. (DHS Video by Science & Technology Directorate/Released)