Rapid Intensification Guidance AL182021 210924 12UTC Storm Located at : 11.60 43.10 Guidance run with Vmax [kt]: 65. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 65.00 N 12-H DELTA VMAX [kt] 5.00 N CORE SIZE [km] 3.00 F CONVECTION <-50C [%] 55.00 N CONVECTION <-60C [%] 20.00 U IR CORE SYMMETRY [K] 9.90 F TC SIZE [%] 63.00 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] 9.4 10.0 12.9 12.4 11.7 13.0 12.3 15.7 F F F F F F F F Ocean Heat [kJ/cm^2] 19.0 24.0 25.0 24.0 27.0 42.0 41.0 43.0 U U U U U N N N Potential [kt] 100.0 100.0 100.0 100.0 97.0 92.3 87.9 83.6 N N N N N N N N 200mb Divg [10^6/s] 61.0 65.0 60.0 13.0 46.0 43.0 65.0 62.0 N N N U N N N N Humidity 700-500 hPa 58.0 57.0 56.0 54.0 58.0 56.0 53.0 50.0 U U U U U U U U T Advectio [10^6 K/s] 0.0 -1.0 -2.0 -1.0 -1.0 -1.0 1.0 4.0 N N N N N N N N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 19.1% 23.2% 21.2% 25kt / 24h 43.6% 62.9% 53.3% 30kt / 24h 41.1% 60.1% 50.6% 35kt / 24h 41.1% 60.1% 50.6% 40kt / 24h 41.1% 60.1% 50.6% 45kt / 36h 35.6% 42.8% 39.2% 55kt / 36h 0.0% 25.4% 12.7% 55kt / 48h 24.9% 38.4% 31.7% 70kt / 48h 10.7% 13.9% 12.3% 65kt / 72h 28.9% 18.6% 23.7%