Rapid Intensification Guidance AL172020 200913 18UTC Storm Located at : 30.20 62.60 Guidance run with Vmax [kt]: 75. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 75.00 N 12-H DELTA VMAX [kt] 10.00 F CORE SIZE [km] 5.80 F CONVECTION <-50C [%] 26.00 U CONVECTION <-60C [%] 3.00 U IR CORE SYMMETRY [K] 9.60 F TC SIZE [%] 95.00 N 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] 9.4 8.7 10.3 14.0 27.7 49.0 53.3 65.3 F F F F N VU VU VU Ocean Heat [kJ/cm^2] 21.0 19.0 28.0 28.0 18.0 17.0 32.0 0.0 U U U U U U U U Potential [kt] 90.0 90.0 90.0 90.0 77.9 82.3 71.5 5.8 N N N N N N U VU 200mb Divg [10^6/s] -9.0 5.0 23.0 27.0 57.0 130.0 86.0 55.0 U U U U N F F N Humidity 700-500 hPa 35.0 36.0 37.0 40.0 42.0 40.0 36.0 34.0 VU VU VU VU VU VU VU VU T Advectio [10^6 K/s] -1.0 0.0 4.0 4.0 -3.0 -20.0 -39.0 -31.0 N N N N N VF VF VF Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 50.0% 30.9% 40.4% 25kt / 24h 50.1% 68.4% 59.3% 30kt / 24h 50.1% 68.4% 59.3% 35kt / 24h 50.1% 68.4% 59.3% 40kt / 24h 41.5% 68.4% 55.0% 45kt / 36h 31.0% 21.7% 26.4% 55kt / 36h 17.9% 10.3% 14.1% 55kt / 48h 4.7% 8.2% 6.4% 70kt / 48h 2.5% 2.0% 2.3% 65kt / 72h 0.0% 0.0% 0.0%