Rapid Intensification Guidance AL202023 231021 18UTC Storm Located at : 16.60 61.10 Guidance run with Vmax [kt]: 75. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 75.00 N 12-H DELTA VMAX [kt] 5.00 N CORE SIZE [km] 2.60 F CONVECTION <-50C [%] 20.00 U CONVECTION <-60C [%] 3.00 U IR CORE SYMMETRY [K] 7.60 F TC SIZE [%] 68.00 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] 25.5 25.1 23.1 22.4 30.7 22.3 36.9 41.5 N N N N U N U VU Ocean Heat [kJ/cm^2] 79.0 75.0 77.0 79.0 67.0 55.0 46.0 32.0 N N N N N N N U Potential [kt] 90.0 90.0 90.0 90.0 90.0 89.3 87.0 82.3 N N N N N N N N 200mb Divg [10^6/s] 32.0 48.0 41.0 48.0 36.0 37.0 70.0 88.0 N N N N N N N F Humidity 700-500 hPa 63.0 64.0 65.0 66.0 67.0 65.0 57.0 48.0 N N N N N N U U T Advectio [10^6 K/s] 0.0 6.0 8.0 13.0 4.0 10.0 1.0 1.0 N N U U N U N N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 22.0% 8.9% 15.4% 25kt / 24h 30.9% 29.7% 30.3% 30kt / 24h 30.9% 20.8% 25.8% 35kt / 24h 30.9% 20.8% 25.8% 40kt / 24h 30.9% 20.8% 25.8% 45kt / 36h 24.5% 8.0% 16.3% 55kt / 36h 0.0% 2.1% 1.1% 55kt / 48h 8.8% 6.9% 7.8% 70kt / 48h 3.9% 0.9% 2.4% 65kt / 72h 7.3% 1.3% 4.3% Convective Decapatation Guidance For SSTs greater than 27.5C Current sst along the future track = 28.64 AL202023 231021 18UTC Storm Located at : 16.60 61.10 Guidance run with Vmax [kt]: 75. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 75.00 N 12-H DELTA VMAX [kt] 5.00 N CORE SIZE [km] 2.60 F TC SIZE [%] 68.00 U 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] 25.5 25.1 23.1 22.4 30.7 22.3 36.9 41.5 N N N N N N F VF Humidity 700-500 hPa 63.0 64.0 65.0 66.0 67.0 65.0 57.0 48.0 N N N N N N F F T Advectio [10^6 K/s] 0.0 6.0 8.0 13.0 4.0 10.0 1.0 1.0 N N F F N F N N Probabilities[%] of Storm Decapitation Thresholds LDA-Method LRE-Method CONSENSUS -30kt / 24h 0.0% 0.3% 0.2%