Rapid Intensification Guidance AL202020 200912 18UTC Storm Located at : 11.20 33.20 Guidance run with Vmax [kt]: 30. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 30.00 F 12-H DELTA VMAX [kt] 5.00 N CORE SIZE [km] 4.20 F CONVECTION <-50C [%] 16.00 U CONVECTION <-60C [%] 3.00 U IR CORE SYMMETRY [K] 6.50 F TC SIZE [%] 84.00 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] 18.7 18.7 21.7 21.6 19.5 13.7 16.8 24.1 N N N N N F F N Ocean Heat [kJ/cm^2] 9.0 10.0 10.0 11.0 12.0 13.0 12.0 9.0 U U U U U U U U Potential [kt] 132.0 134.3 135.0 134.3 127.3 122.9 118.6 114.4 F F F F N N N N 200mb Divg [10^6/s] 50.0 59.0 81.0 103.0 107.0 107.0 73.0 126.0 N N N F F F N F Humidity 700-500 hPa 77.0 74.0 71.0 71.0 70.0 64.0 64.0 60.0 F N N N N N N N T Advectio [10^6 K/s] -6.0 -10.0 -16.0 -18.0 -13.0 -7.0 -4.0 0.0 F F VF VF VF F F N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 0.7% 1.6% 1.1% 25kt / 24h 3.1% 14.0% 8.5% 30kt / 24h 1.4% 5.3% 3.3% 35kt / 24h 1.0% 5.3% 3.1% 40kt / 24h 1.0% 5.3% 3.1% 45kt / 36h 4.3% 20.5% 12.4% 55kt / 36h 1.9% 6.7% 4.3% 55kt / 48h 8.5% 4.8% 6.7% 70kt / 48h 4.8% 11.1% 7.9% 65kt / 72h 13.3% 20.2% 16.8%