Rapid Intensification Guidance AL182021 210925 00UTC Storm Located at : 12.30 45.40 Guidance run with Vmax [kt]: 85. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 85.00 N 12-H DELTA VMAX [kt] 20.00 F CORE SIZE [km] 3.00 F CONVECTION <-50C [%] 32.00 U CONVECTION <-60C [%] 10.00 U IR CORE SYMMETRY [K] 9.80 F TC SIZE [%] 61.00 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] 12.7 12.1 11.9 11.7 15.3 13.0 16.0 11.8 F F F F F F F F Ocean Heat [kJ/cm^2] 23.0 23.0 26.0 32.0 43.0 40.0 47.0 53.0 U U U U N N N N Potential [kt] 80.0 80.0 77.0 74.6 70.1 67.9 63.6 63.6 N N U U U U U U 200mb Divg [10^6/s] 30.0 58.0 51.0 59.0 54.0 33.0 64.0 58.0 N N N N N N N N Humidity 700-500 hPa 56.0 55.0 56.0 58.0 56.0 55.0 51.0 52.0 U U U U U U U U T Advectio [10^6 K/s] -2.0 -2.0 0.0 -2.0 -2.0 -1.0 3.0 3.0 N N N N N N N N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 68.0% 35.8% 51.9% 25kt / 24h 84.1% 62.0% 73.0% 30kt / 24h 84.1% 61.3% 72.7% 35kt / 24h 84.1% 61.3% 72.7% 40kt / 24h 84.1% 61.3% 72.7% 45kt / 36h 66.8% 41.5% 54.2% 55kt / 36h 0.0% 25.8% 12.9% 55kt / 48h 23.5% 19.2% 21.4% 70kt / 48h 0.0% 0.0% 0.0% 65kt / 72h 0.0% 0.0% 0.0%