The above explanations provide fundamental information about the severity of the mentioned weather event. The lowest limits of severe weather products through determining different sources are as follows. diameter of 2 cm (ISSL) for large hail and speed of 50 knot for severe wind (Bluestein, 2013).
When the probabilities exceed 10%, the parameters can be considered as “significant severe”, depending on environmental conditions. These risk categories are tied to the probability of a severe weather event within 40 km of a specific location.