Rapid Onset Emergency 2 : 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, Lexicon of UK Civil Protection: A developing single point of reference for UK Civil Protection Terminology - Version 2.0.1, Emergency Responder Interoperability Lexicon, London, UK 2011. http://www.cabinetoffice.gov.uk/cplexicon, (Emr Mgt - Brit) {545}