Rapid Intensification Guidance AL172020 200913 12UTC Storm Located at : 29.60 61.40 Guidance run with Vmax [kt]: 70. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 70.00 N 12-H DELTA VMAX [kt] 5.00 N CORE SIZE [km] 6.60 F CONVECTION <-50C [%] 43.00 U CONVECTION <-60C [%] 13.00 U IR CORE SYMMETRY [K] 9.60 F TC SIZE [%] 99.00 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] 8.8 7.1 7.5 7.8 22.3 39.1 56.4 63.1 F VF VF VF N U VU VU Ocean Heat [kJ/cm^2] 21.0 21.0 19.0 30.0 21.0 17.0 21.0 31.0 U U U U U U U U Potential [kt] 95.0 95.0 95.0 95.0 94.3 82.9 80.7 80.7 N N N N N N N N 200mb Divg [10^6/s] 19.0 -12.0 2.0 35.0 25.0 127.0 112.0 85.0 U U U N U F F F Humidity 700-500 hPa 37.0 36.0 37.0 38.0 43.0 41.0 38.0 33.0 VU VU VU VU VU VU VU VU T Advectio [10^6 K/s] 1.0 0.0 -1.0 4.0 0.0 1.0 -21.0 -37.0 N N N N N N VF VF Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 23.0% 24.3% 23.7% 25kt / 24h 38.3% 66.2% 52.2% 30kt / 24h 36.5% 66.2% 51.4% 35kt / 24h 36.5% 66.2% 51.4% 40kt / 24h 23.3% 66.2% 44.8% 45kt / 36h 29.6% 30.3% 29.9% 55kt / 36h 16.9% 16.3% 16.6% 55kt / 48h 8.2% 16.0% 12.1% 70kt / 48h 3.9% 3.9% 3.9% 65kt / 72h 3.2% 1.2% 2.2%