FWiW Australia used a CDC Cyber 205 for occassional weather modelling and other mathematical work in the early 1980s.
( There was a seperate dedicated weather computer, this one was used for 'other' jobs like speculative weather modelling, monster group algebraic fun, et al.)
In 1980, the successor to the Cyber 203, the Cyber 205 was announced. The UK Meteorological Office at Bracknell, England was the first customer and they received their Cyber 205 in 1981.
( There was a seperate dedicated weather computer, this one was used for 'other' jobs like speculative weather modelling, monster group algebraic fun, et al.)
https://en.wikipedia.org/wiki/CDC_Cyber
The UK was the first customer: