Rapid Intensification Guidance AL162021 210919 18UTC Storm Located at : 18.20 57.20 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 N CORE SIZE [km] 3.80 F CONVECTION <-50C [%] 8.00 VU CONVECTION <-60C [%] 6.00 U IR CORE SYMMETRY [K] 1.40 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] 37.4 43.4 44.0 39.5 42.7 34.2 40.2 43.5 U VU VU U VU U U VU Ocean Heat [kJ/cm^2] 50.0 44.0 45.0 43.0 45.0 73.0 63.0 53.0 N N N N N N N N Potential [kt] 125.0 125.0 125.0 125.0 125.0 125.0 125.0 125.0 N N N N N N N N 200mb Divg [10^6/s] 43.0 14.0 -6.0 -23.0 -16.0 46.0 33.0 23.0 N U U VU U N N U Humidity 700-500 hPa 53.0 54.0 54.0 55.0 54.0 57.0 60.0 60.0 U U U U U U N N T Advectio [10^6 K/s] -5.0 -7.0 -8.0 -2.0 -7.0 0.0 -1.0 0.0 F F F N F N N N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 1.0% 0.7% 0.9% 25kt / 24h 0.6% 3.4% 2.0% 30kt / 24h 0.5% 0.9% 0.7% 35kt / 24h 0.5% 0.8% 0.6% 40kt / 24h 0.5% 0.8% 0.6% 45kt / 36h 0.2% 1.9% 1.0% 55kt / 36h 0.0% 0.3% 0.1% 55kt / 48h 0.1% 0.7% 0.4% 70kt / 48h 0.1% 0.2% 0.2% 65kt / 72h 1.1% 1.1% 1.1%