Rapid Intensification Guidance AL122021 210831 18UTC Storm Located at : 10.80 20.20 Guidance run with Vmax [kt]: 30. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 30.00 F 12-H DELTA VMAX [kt] 0.00 N CORE SIZE [km] 2.20 F CONVECTION <-50C [%] 53.00 N CONVECTION <-60C [%] 36.00 N IR CORE SYMMETRY [K] 9.60 F TC SIZE [%] 95.00 N Forecast Conditions: Predictor Value Favorable(F)/Unfavor(U) 6 12 18 24 36 48 60 72 6 12 18 24 36 48 60 72 Wind Shear [kt] 19.9 19.5 18.9 16.2 15.8 19.4 19.4 24.8 N N N F F N N N Ocean Heat [kJ/cm^2] 13.0 11.0 13.0 14.0 8.0 7.0 18.0 18.0 U U U U U U U U Potential [kt] 106.6 110.5 114.4 118.6 118.6 114.4 108.5 104.8 N N N N N N N N 200mb Divg [10^6/s] 89.0 65.0 62.0 68.0 88.0 125.0 116.0 108.0 F N N N F F F F Humidity 700-500 hPa 79.0 81.0 81.0 80.0 74.0 68.0 66.0 60.0 F F F F N N N N T Advectio [10^6 K/s] -10.0 -10.0 -8.0 -10.0 -7.0 -7.0 -17.0 -6.0 F F F F F F VF F Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.1% 0.6% 0.4% 25kt / 24h 1.2% 7.4% 4.3% 30kt / 24h 0.2% 2.8% 1.5% 35kt / 24h 0.1% 2.3% 1.2% 40kt / 24h 0.0% 2.3% 1.1% 45kt / 36h 1.5% 17.2% 9.4% 55kt / 36h 0.0% 6.5% 3.3% 55kt / 48h 7.5% 4.6% 6.0% 70kt / 48h 4.6% 7.5% 6.1% 65kt / 72h 11.7% 16.4% 14.1% Decapatation Guidance NOT VALID Thermodyanmic Conditions Unfavorable for Intense Typhoons