From where have y'all learned that there was a thunderstorm, except from another poster on this here rumour site?
From AC, if quoted correctly in the Globe newspaper:
Air Canada spokesman Peter Fitzpatrick said Flight 34, with 256 passengers and 17 crew, was just over an hour east of Honolulu when it encountered turbulence related to thunderstorms in the area.
Mind you he could be speaking out his a*** as well. FWIW the CADORS entry does
not mention CBs.