Traders will have access to regional probability density plots of the CHI ™ for all hurricanes that are predicted to approach within 100 nautical miles of the coastline.
If we're worried about high - temperature events, it makes more sense to look at something like cumulative densityplots of daily high temperature probabilities.
Plot temperature on the x-axis, the probability that the daily high is above some temperature on the y - axis (so actually one minus the cumulative density), and put vertical lines showing the historical mean + / - one, two, or three sigmas.