Genesis Potential Index (Emanuel and Nolan, 2004) $\mathrm{GPI}={\mathrm{<mrow>\; <mo>|</mo>\; <msup>\; <mfenced>\; <mrow>\; <mn>10</mn>\; </mrow>\; </mfenced>\; <mn>5</mn>\; </msup>\; <mn>\eta </mn>\; <mo>|</mo>\; </mrow>}}^3{\left(\left(,\frac{\mathrm{RH}}{50},\right)\right)}^3{\left(\left(,\frac{V_{\mathrm{pot}}}{70},\right)\right)}^3{\left(\left(,\mathrm{1+0.1},V_{\mathrm{shear}},\right)\right)}^{-2}$ Right Side Clause 1 : Absolute Vorticity Right Side Clause 2 : Relative Humidity Right Side Clause 3 : Maximum Potential Intensity Right Side Clause 4 : Wind Shear Genesis Potential Index (Murakami 2011,Tenki, Glossary)