Rapid Intensification Guidance AL182021 210928 06UTC Storm Located at : 17.00 53.50 Guidance run with Vmax [kt]: 110. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 110.00 U 12-H DELTA VMAX [kt] 5.00 N CORE SIZE [km] 6.60 F CONVECTION <-50C [%] 74.00 N CONVECTION <-60C [%] 41.00 N IR CORE SYMMETRY [K] 9.90 F TC SIZE [%] 65.00 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] 19.6 16.8 16.7 19.1 13.9 16.3 15.8 25.2 N F F N F F F N Ocean Heat [kJ/cm^2] 31.0 33.0 43.0 53.0 60.0 53.0 47.0 27.0 U U N N N N N U Potential [kt] 52.0 52.0 52.0 52.0 49.6 49.6 54.3 55.0 U U U U U U U U 200mb Divg [10^6/s] -3.0 -3.0 17.0 3.0 44.0 38.0 56.0 61.0 U U U U N N N N Humidity 700-500 hPa 47.0 47.0 47.0 48.0 48.0 53.0 58.0 60.0 VU VU VU U U U U N T Advectio [10^6 K/s] 2.0 1.0 0.0 -1.0 0.0 -1.0 6.0 11.0 N N N N N N N U Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 11.5% 5.5% 8.5% 25kt / 24h 7.4% 10.2% 8.8% 30kt / 24h 7.4% 7.0% 7.2% 35kt / 24h 6.0% 7.0% 6.5% 40kt / 24h 6.0% 6.6% 6.3% 45kt / 36h 0.0% 0.0% 0.0% 55kt / 36h 0.0% 0.0% 0.0% 55kt / 48h 0.0% 0.0% 0.0% 70kt / 48h 0.0% 0.0% 0.0% 65kt / 72h 0.0% 0.0% 0.0%