Rapid Intensification Guidance AL172020 200907 12UTC Storm Located at : 17.20 42.20 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 [%] 32.00 U CONVECTION <-60C [%] 24.00 U IR CORE SYMMETRY [K] 7.40 F TC SIZE [%] 83.00 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] 10.4 14.1 18.6 19.8 23.7 26.3 36.5 37.7 F F N N N N U U Ocean Heat [kJ/cm^2] 7.0 7.0 7.0 8.0 9.0 7.0 7.0 9.0 U U U U U U U U Potential [kt] 110.5 112.4 112.4 112.4 112.4 116.5 120.7 127.3 N N N N N N N N 200mb Divg [10^6/s] 41.0 33.0 33.0 53.0 50.0 28.0 -3.0 -23.0 N N N N N U U VU Humidity 700-500 hPa 60.0 62.0 61.0 63.0 61.0 59.0 58.0 56.0 N N N N N U U U T Advectio [10^6 K/s] 0.0 0.0 0.0 1.0 3.0 6.0 2.0 -2.0 N N N N N N N N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.2% 1.1% 0.6% 25kt / 24h 0.6% 5.7% 3.1% 30kt / 24h 0.1% 1.6% 0.8% 35kt / 24h 0.0% 1.6% 0.8% 40kt / 24h 0.0% 1.4% 0.7% 45kt / 36h 0.4% 9.9% 5.1% 55kt / 36h 0.4% 3.4% 1.9% 55kt / 48h 2.4% 2.4% 2.4% 70kt / 48h 2.4% 2.7% 2.6% 65kt / 72h 0.5% 2.5% 1.5% Decapatation Guidance NOT VALID Thermodyanmic Conditions Unfavorable for Intense Typhoons