Rapid Intensification Guidance AL172023 230928 18UTC Storm Located at : 18.90 55.00 Guidance run with Vmax [kt]: 40. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 40.00 F 12-H DELTA VMAX [kt] -5.00 U CORE SIZE [km] 2.20 F CONVECTION <-50C [%] 13.00 VU CONVECTION <-60C [%] 6.00 U IR CORE SYMMETRY [K] 7.20 F TC SIZE [%] 94.00 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] 22.1 19.7 21.4 19.7 20.6 18.7 16.7 26.4 N N N N N N F N Ocean Heat [kJ/cm^2] 60.0 58.0 57.0 57.0 56.0 53.0 53.0 56.0 N N N N N N N N Potential [kt] 122.0 122.0 122.0 122.0 124.3 125.0 125.0 125.0 N N N N N N N N 200mb Divg [10^6/s] 1.0 -36.0 -10.0 6.0 23.0 -14.0 -40.0 41.0 U VU U U U U VU N Humidity 700-500 hPa 58.0 54.0 54.0 54.0 49.0 48.0 50.0 52.0 U U U U U U U U T Advectio [10^6 K/s] -2.0 -2.0 -2.0 -1.0 -3.0 -1.0 0.0 0.0 N N N N N N N N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.4% 1.0% 0.7% 25kt / 24h 0.9% 7.6% 4.2% 30kt / 24h 0.7% 3.0% 1.9% 35kt / 24h 0.3% 2.6% 1.4% 40kt / 24h 0.1% 2.6% 1.3% 45kt / 36h 2.7% 7.1% 4.9% 55kt / 36h 0.0% 1.8% 0.9% 55kt / 48h 6.5% 5.8% 6.2% 70kt / 48h 4.3% 1.9% 3.1% 65kt / 72h 26.1% 8.7% 17.4% Convective Decapatation Guidance For SSTs greater than 27.5C Current sst along the future track = 28.28 AL172023 230928 18UTC Storm Located at : 18.90 55.00 Guidance run with Vmax [kt]: 40. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 40.00 U 12-H DELTA VMAX [kt] -5.00 F CORE SIZE [km] 2.20 F TC SIZE [%] 94.00 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] 22.1 19.7 21.4 19.7 20.6 18.7 16.7 26.4 N N N N N N N N Humidity 700-500 hPa 58.0 54.0 54.0 54.0 49.0 48.0 50.0 52.0 F F F F F F F F T Advectio [10^6 K/s] -2.0 -2.0 -2.0 -1.0 -3.0 -1.0 0.0 0.0 N N N N N N N N Probabilities[%] of Storm Decapitation Thresholds LDA-Method LRE-Method CONSENSUS -30kt / 24h 0.0% 0.0% 0.0%