Rapid Intensification Guidance AL132020 200821 18UTC Storm Located at : 17.10 60.90 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] 8.60 F CONVECTION <-50C [%] 29.00 U CONVECTION <-60C [%] 4.00 U IR CORE SYMMETRY [K] 9.50 F TC SIZE [%] 85.00 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] 29.3 31.8 28.2 20.2 15.1 14.7 23.2 19.6 N U N N F F N N Ocean Heat [kJ/cm^2] 45.0 64.0 71.0 61.0 38.0 41.0 58.0 61.0 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] -20.0 -25.0 -11.0 20.0 32.0 9.0 -3.0 -20.0 VU VU U U N U U VU Humidity 700-500 hPa 57.0 59.0 60.0 63.0 64.0 63.0 66.0 67.0 U U N N N N N N T Advectio [10^6 K/s] -23.0 -13.0 -7.0 -7.0 -10.0 -12.0 -17.0 -19.0 VF VF F F F F VF VF Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 3.3% 3.0% 3.1% 25kt / 24h 7.9% 18.2% 13.1% 30kt / 24h 5.6% 7.5% 6.5% 35kt / 24h 2.9% 7.5% 5.2% 40kt / 24h 1.8% 7.5% 4.7% 45kt / 36h 8.3% 25.2% 16.7% 55kt / 36h 5.3% 10.7% 8.0% 55kt / 48h 9.5% 15.3% 12.4% 70kt / 48h 5.6% 12.8% 9.2% 65kt / 72h 12.6% 27.5% 20.1%