Rapid Intensification Guidance AL182020 200908 00UTC Storm Located at : 16.10 22.90 Guidance run with Vmax [kt]: 35. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 35.00 F 12-H DELTA VMAX [kt] 5.00 N CORE SIZE [km] 2.20 F CONVECTION <-50C [%] 21.00 U CONVECTION <-60C [%] 10.00 U IR CORE SYMMETRY [K] 8.40 F TC SIZE [%] 86.00 F 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] 12.5 15.3 13.8 12.5 17.2 17.1 10.0 15.3 F F F F F F F F Ocean Heat [kJ/cm^2] 9.0 8.0 10.0 10.0 11.0 4.0 7.0 7.0 U U U U U U U U Potential [kt] 105.5 101.6 98.0 92.7 86.1 87.7 87.7 91.0 N N N N N N N N 200mb Divg [10^6/s] 13.0 27.0 25.0 21.0 -9.0 -16.0 -9.0 2.0 U U U U U U U U Humidity 700-500 hPa 70.0 69.0 68.0 67.0 65.0 65.0 65.0 65.0 N N N N N N N N T Advectio [10^6 K/s] 5.0 6.0 0.0 0.0 2.0 3.0 2.0 11.0 N N N N N N N U Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.8% 1.5% 1.1% 25kt / 24h 0.8% 5.9% 3.3% 30kt / 24h 0.4% 2.0% 1.2% 35kt / 24h 0.2% 1.8% 1.0% 40kt / 24h 0.2% 1.8% 1.0% 45kt / 36h 0.9% 9.2% 5.1% 55kt / 36h 0.9% 3.8% 2.3% 55kt / 48h 4.8% 4.8% 4.8% 70kt / 48h 4.8% 2.6% 3.7% 65kt / 72h 0.4% 3.5% 2.0% Decapatation Guidance NOT VALID Thermodyanmic Conditions Unfavorable for Intense Typhoons