Be alert to changing weather conditions.

• Listen to NOAA Weather Radio or to commercial radio or television newscasts for the latest information.
• Look for approaching storms
• Look for the following danger signs:
  • Dark, often greenish sky
  • Large hail
  • A large, dark, low-lying cloud (particularly if rotating)
  • Loud roar, similar to a freight train.

If you see approaching storms or any of the danger signs, be prepared to take shelter immediately.
Source: fema.gov