Rapid Intensification Guidance AL172020 200907 06UTC Storm Located at : 17.20 42.00 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 [%] 37.00 U CONVECTION <-60C [%] 31.00 N IR CORE SYMMETRY [K] 6.00 F TC SIZE [%] 78.00 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] 10.3 9.6 14.5 20.3 19.4 23.0 24.8 35.4 F F F N N N N U Ocean Heat [kJ/cm^2] 6.0 7.0 7.0 8.0 10.0 11.0 12.0 15.0 U U U U U U U U Potential [kt] 110.5 112.4 112.4 112.4 114.4 114.4 118.6 125.1 N N N N N N N N 200mb Divg [10^6/s] 18.0 37.0 14.0 29.0 63.0 41.0 3.0 -7.0 U N U N N N U U Humidity 700-500 hPa 58.0 60.0 61.0 61.0 62.0 59.0 55.0 56.0 U N N N N U U U T Advectio [10^6 K/s] 0.0 0.0 0.0 1.0 1.0 6.0 9.0 -2.0 N N N N N N U N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.2% 1.2% 0.7% 25kt / 24h 0.6% 6.4% 3.5% 30kt / 24h 0.1% 1.9% 1.0% 35kt / 24h 0.0% 1.9% 1.0% 40kt / 24h 0.0% 1.6% 0.8% 45kt / 36h 0.5% 12.4% 6.5% 55kt / 36h 0.5% 4.4% 2.5% 55kt / 48h 3.3% 3.3% 3.3% 70kt / 48h 3.3% 3.7% 3.5% 65kt / 72h 1.6% 4.4% 3.0% Decapatation Guidance NOT VALID Thermodyanmic Conditions Unfavorable for Intense Typhoons