Emergency, Rapid Onset : Emergency which develops quickly, and usually with immediate effects, thereby limiting the time available to consider response options (in contrast to rising tide emergency)
Cabinet Office, Civil Protection Lexicon: A developing single point of reference for UK Civil Protection terminology, Version 1.0, UK 2009. http://webarchive.nationalarchives.gov.uk/+/http:/ /www.cabinetoffice.gov.uk/media/230446/lexicon.pdf , (Emr Mgt - Brit) {19}
