Rapid Intensification Guidance AL182020 200909 18UTC Storm Located at : 17.90 32.20 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] 5.40 F CONVECTION <-50C [%] 29.00 U CONVECTION <-60C [%] 18.00 U IR CORE SYMMETRY [K] 7.50 F TC SIZE [%] 84.00 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] 23.8 18.2 14.6 14.5 10.4 17.4 28.6 36.1 N F F F F F N U Ocean Heat [kJ/cm^2] 1.0 1.0 1.0 0.0 4.0 1.0 2.0 11.0 U U U U U U U U Potential [kt] 86.1 86.1 86.1 86.1 89.3 96.2 99.8 105.5 N N N N N N N N 200mb Divg [10^6/s] 20.0 5.0 4.0 18.0 8.0 -10.0 -10.0 8.0 U U U U U U U U Humidity 700-500 hPa 66.0 65.0 67.0 65.0 66.0 59.0 62.0 63.0 N N N N N U N N T Advectio [10^6 K/s] 4.0 2.0 1.0 0.0 6.0 6.0 5.0 12.0 N N N N N N N U Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.1% 0.4% 0.2% 25kt / 24h 0.2% 1.5% 0.8% 30kt / 24h 0.0% 0.4% 0.2% 35kt / 24h 0.0% 0.3% 0.2% 40kt / 24h 0.0% 0.3% 0.1% 45kt / 36h 0.1% 4.9% 2.5% 55kt / 36h 0.1% 1.9% 1.0% 55kt / 48h 2.6% 2.6% 2.6% 70kt / 48h 2.6% 1.5% 2.0% 65kt / 72h 0.0% 1.1% 0.6% Decapatation Guidance NOT VALID Thermodyanmic Conditions Unfavorable for Intense Typhoons