catflap.org Online Dictionary Query

  in the event of exceptional circumstances affecting supplies /ɪnðɪ ɪvˈɛnt ɒv ɛksˈɛpʃənəl sˈɜːkəmstˌansɪz ɐfˈɛktɪŋ səplˈaɪz/
  beim Eintreten außergewöhnlicher Umstände, die die Versorgung beeinträchtigen
     Synonym: when/if exceptional circumstances occur which affect supplies
  
   see: occurrence, from the first day of the delay, upon death, after the death of the testator, after coming of (full) age, after reaching majority, upon insolvency, after insolvency has occurred, when/if arrears arise, when/if the risk materializes, in the event that the risk scenario materializes