FEMA: USA Federal Disaster Declarations
   Sortable by state or by year.
   http://www.fema.gov/news/disasters.fema

Natural Disaster Early Warning Network
   The Disaster Warning Network will provide early warnings of natural disasters before they impact people and property.
   http://www.disasterwarning.com/

The Emergency Email Network
   Public private partnership between government, non profit and private underwriting. Providing email notification of emergencies, locally, regionally and nationally.
   http://www.emergencyemailnetwork.com/