Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison Tropical Cyclones AI Rapid Intensification Index   (Reference)     Indusa at 04/06/26 12 UTC. Intensity = 35 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% RIPA Consensus 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% AI-RI in RIPA Consensus 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Linear Discriminant Analysis 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Logistic Regression 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/06/26 06 UTC. Intensity = 35 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% RIPA Consensus 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% AI-RI in RIPA Consensus 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Linear Discriminant Analysis 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Logistic Regression 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/06/26 00 UTC. Intensity = 40 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% RIPA Consensus 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% AI-RI in RIPA Consensus 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Linear Discriminant Analysis 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Logistic Regression 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/05/26 18 UTC. Intensity = 50 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 0.1% 5.1% 0.7% 0.2% 0.2% 0.9% 0.2% 1.1% 0.0% 2.2% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/05/26 12 UTC. Intensity = 55 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 0.0% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/05/26 06 UTC. Intensity = 60 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 0.0% 0.1% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/05/26 00 UTC. Intensity = 65 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 0.3% 0.6% 0.2% 0.0% 0.0% 0.0% 0.0% 0.1% 0.0% 0.0% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/04/26 18 UTC. Intensity = 70 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 1.2% 1.4% 0.3% 0.1% 0.1% 3.8% 0.4% 2.3% 0.0% 2.4% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/04/26 12 UTC. Intensity = 80 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 5.6% 3.8% 2.6% 0.6% 0.4% 0.4% 0.1% 0.7% 0.0% 0.0% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/04/26 06 UTC. Intensity = 90 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 7.8% 7.7% 8.2% 1.6% 1.5% 0.4% 0.2% 0.5% 0.1% 0.0% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/04/26 00 UTC. Intensity = 70 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 9.4% 12.1% 9.8% 6.8% 4.3% 2.5% 0.9% 4.3% 0.4% 0.1% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/03/26 18 UTC. Intensity = 65 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 14.3% 20.8% 23.2% 12.3% 6.9% 7.4% 13.5% 4.5% 0.6% 0.2% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/03/26 12 UTC. Intensity = 60 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 16.0% 28.3% 28.6% 33.3% 21.5% 23.2% 20.5% 13.8% 2.3% 0.6% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------         Indusa at 04/03/26 06 UTC. Intensity = 55 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 22.9% 43.7% 42.5% 35.9% 37.1% 42.8% 29.2% 33.4% 19.1% 3.0% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/03/26 00 UTC. Intensity = 55 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 30.5% 54.3% 44.4% 43.4% 44.9% 49.0% 34.9% 46.8% 25.1% 9.9% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/02/26 18 UTC. Intensity = 55 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 16.2% 43.7% 33.9% 20.1% 17.0% 42.5% 39.4% 41.0% 15.8% 17.7% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Indusa at 04/02/26 12 UTC. Intensity = 45 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 15.5% 44.8% 36.1% 26.3% 24.7% 38.3% 27.8% 31.0% 26.2% 20.1% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Twentynine at 04/02/26 06 UTC. Intensity = 40 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 21.1% 46.3% 44.1% 19.9% 15.0% 42.7% 26.3% 36.4% 22.9% 26.3% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------   Twentynine at 04/02/26 00 UTC. Intensity = 35 kts, MPI = 9999 kts       AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 RI (kt / h) 20/12 25/24 30/24 35/24 40/24 45/36 55/36 55/48 70/48 65/72 AI-RI 14.5% 50.1% 46.6% 18.0% 17.7% 39.4% 20.1% 30.9% 26.3% 39.9% RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A AI-RI in RIPA Consensus N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Linear Discriminant Analysis N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Logistic Regression N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------