Severe thunderstorm and rainfall activities are dangerous to any humankind activities including the airport operations. Thorough studies about the thunderstorm activities at the airports are important for flight safety as scholars have attempted to understand thunderstorm behavior that is measured from atmospheric stability indices. The atmospheric stability indices at Kuching and Miri airports were analyzed to predict the precursor of the phenomenon and to improve the forecasting skills among the forecasters. The result shows that the stability indices suggested by the models were found not to be exclusive to represent the phenomenon that had occurred at some points. The phenomenon might not occur at all, although the index falls within the suggested model’s range. A linear relationship between any two models was analyzed to observe how they interact between them. A strong negative linear relationship between SI -TTI and CAPE-LI was found negative while TPWKI was in a positive corre.....

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