Rapid Intensification Guidance AL182020 200907 12UTC Storm Located at : 15.50 20.70 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] 5.00 N CORE SIZE [km] 2.20 F CONVECTION <-50C [%] 30.00 U CONVECTION <-60C [%] 14.00 U IR CORE SYMMETRY [K] 8.20 F TC SIZE [%] 96.00 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] 12.7 9.7 13.7 15.8 13.3 15.4 18.7 16.4 F F F F F F N F Ocean Heat [kJ/cm^2] 9.0 9.0 9.0 10.0 12.0 14.0 5.0 7.0 U U U U U U U U Potential [kt] 120.7 116.5 112.4 108.5 99.4 94.3 92.7 94.3 N N N N N N N N 200mb Divg [10^6/s] 40.0 19.0 -1.0 0.0 14.0 -31.0 28.0 -9.0 N U U U U VU U U Humidity 700-500 hPa 71.0 71.0 72.0 71.0 69.0 65.0 65.0 65.0 N N N N N N N N T Advectio [10^6 K/s] 2.0 3.0 7.0 9.0 3.0 4.0 2.0 1.0 N N N U N N N N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.9% 2.6% 1.8% 25kt / 24h 1.8% 12.0% 6.9% 30kt / 24h 0.8% 4.2% 2.5% 35kt / 24h 0.3% 4.2% 2.3% 40kt / 24h 0.2% 4.1% 2.2% 45kt / 36h 1.8% 19.9% 10.8% 55kt / 36h 1.8% 9.1% 5.5% 55kt / 48h 5.3% 5.3% 5.3% 70kt / 48h 5.3% 6.0% 5.7% 65kt / 72h 0.7% 6.1% 3.4%