<p class="Abstractandkeywordscontent"><span lang="EN-US"><span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">This paper presents a proposal for the development of an automatic system correlation between two variables, one represented by the <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">failures on the electrical distribution lines during a storm process and another one represented by atmospheric discharges (lightning) <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">that happen in this process. Initially, in order to define if the failure is caused directly or indirectly by an electrical impact generated <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">by lightning, a space-time correlation is proposed. With the obtained data a decision matrix is proposed, using an entropy method <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">to assign weights to the failures in order to determine its severity and therefore its priority of attention. On the other hand, taking into <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">account that the time window of observation is perhaps the most relevant parameter in the proposed correlation system, this article <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">shows part of a simulation proposed for its calculation as well as the mathematical bases that were used as a support for it.</span></span></span></span></span></span><br style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" /><br class="Apple-interchange-newline" /></span></span></p>