Rapid Intensification Guidance AL082021 210818 00UTC Storm Located at : 30.20 64.50 Guidance run with Vmax [kt]: 55. Initial Conditions: Predictor Value Favorable(F)/Unfavorable(U) INTENSITY (VMAX) [kt] 55.00 N 12-H DELTA VMAX [kt] 10.00 F CORE SIZE [km] 2.20 F CONVECTION <-50C [%] 19.00 U CONVECTION <-60C [%] 5.00 U IR CORE SYMMETRY [K] 6.40 F TC SIZE [%] 81.00 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] 20.6 25.4 31.4 30.5 32.3 33.6 31.7 35.8 N N U N U U U U Ocean Heat [kJ/cm^2] 27.0 30.0 36.0 34.0 30.0 24.0 23.0 29.0 U U U U U U U U Potential [kt] 110.0 110.0 110.0 110.0 110.0 110.0 110.0 102.3 N N N N N N N N 200mb Divg [10^6/s] 0.0 9.0 0.0 -40.0 39.0 -8.0 15.0 4.0 U U U VU N U U U Humidity 700-500 hPa 50.0 50.0 50.0 50.0 53.0 55.0 58.0 63.0 U U U U U U U N T Advectio [10^6 K/s] -1.0 -2.0 -5.0 -2.0 -5.0 -5.0 -4.0 4.0 N N F N F F F N Probabilities[%] of Rapid intensification Thresholds LDA-Method LRE-Method CONSENSUS 20kt / 12h 9.8% 6.0% 7.9% 25kt / 24h 6.4% 14.9% 10.6% 30kt / 24h 6.4% 8.3% 7.4% 35kt / 24h 4.7% 8.3% 6.5% 40kt / 24h 4.1% 8.3% 6.2% 45kt / 36h 3.7% 7.6% 5.6% 55kt / 36h 1.7% 2.1% 1.9% 55kt / 48h 0.1% 2.9% 1.5% 70kt / 48h 0.1% 1.0% 0.6% 65kt / 72h 0.0% 1.3% 0.7%