CAT forecasts by computer modelling
Forecasting of CAT is routinely done using results obtained from computer
modelling of the weather. The modelling results make it possible
to calculate a number of CAT indices, which are based on such contributing
factors as wind changes in the vertical direction and instability of the
air. Regions where the CAT indices are large are marked as possible
CAT areas on the significant weather chart.
Some aircraft nowadays are capable of automatic reporting of weather
during flight. Apart from providing forecasters with useful weather
information such as winds, temperatures and turbulence, these reports are
incorporated into computer models resulting in improved forecasts.
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