Rapid Intensification Guidance AL132020 200821 12UTC Storm Located at : 17.00 59.50 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] 10.00 F CORE SIZE [km] 2.20 F CONVECTION <-50C [%] 61.00 N CONVECTION <-60C [%] 19.00 U IR CORE SYMMETRY [K] 8.50 F TC SIZE [%] 78.00 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] 23.2 29.7 30.2 26.3 13.7 15.6 10.4 20.4 N N N N F F F N Ocean Heat [kJ/cm^2] 43.0 45.0 66.0 70.0 37.0 52.0 51.0 67.0 N N N N U 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] 18.0 -28.0 -35.0 -5.0 48.0 26.0 -16.0 5.0 U VU VU U N U U U Humidity 700-500 hPa 58.0 57.0 58.0 60.0 63.0 64.0 63.0 65.0 U U U N N N N N T Advectio [10^6 K/s] -11.0 -23.0 -17.0 -10.0 -14.0 -3.0 -12.0 -14.0 F VF VF F VF N F VF Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 4.4% 6.7% 5.5% 25kt / 24h 13.4% 30.4% 21.9% 30kt / 24h 8.1% 15.7% 11.9% 35kt / 24h 4.0% 15.7% 9.8% 40kt / 24h 2.6% 13.6% 8.1% 45kt / 36h 9.4% 40.8% 25.1% 55kt / 36h 5.9% 21.4% 13.6% 55kt / 48h 13.0% 25.6% 19.3% 70kt / 48h 6.8% 23.7% 15.3% 65kt / 72h 16.9% 43.5% 30.2%