Rapid Intensification Guidance AL182021 210924 18UTC Storm Located at : 11.90 44.30 Guidance run with Vmax [kt]: 70. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 70.00 N 12-H DELTA VMAX [kt] 5.00 N CORE SIZE [km] 2.20 F CONVECTION <-50C [%] 67.00 N CONVECTION <-60C [%] 22.00 U IR CORE SYMMETRY [K] 10.00 F TC SIZE [%] 74.00 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] 10.9 13.6 12.7 12.5 11.3 11.9 15.2 13.7 F F F F F F F F Ocean Heat [kJ/cm^2] 25.0 25.0 24.0 25.0 36.0 42.0 40.0 51.0 U U U U U N N N Potential [kt] 95.0 95.0 95.0 95.0 89.6 85.1 80.7 80.7 N N N N N N N N 200mb Divg [10^6/s] 44.0 27.0 28.0 34.0 52.0 24.0 55.0 50.0 N U U N N U N N Humidity 700-500 hPa 58.0 57.0 55.0 55.0 57.0 55.0 51.0 50.0 U U U U U U U U T Advectio [10^6 K/s] -2.0 -2.0 -3.0 0.0 0.0 1.0 2.0 5.0 N N N N N N N N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 24.2% 28.6% 26.4% 25kt / 24h 47.3% 66.8% 57.0% 30kt / 24h 40.3% 66.8% 53.6% 35kt / 24h 38.6% 66.8% 52.7% 40kt / 24h 38.6% 66.1% 52.3% 45kt / 36h 37.6% 44.6% 41.1% 55kt / 36h 0.0% 28.0% 14.0% 55kt / 48h 24.1% 39.5% 31.8% 70kt / 48h 9.9% 13.6% 11.8% 65kt / 72h 24.7% 15.7% 20.2%