Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclones
AI Rapid Intensification Index   (Reference)

Go to: Atlantic TCs
Go to: East Pacific TCs
Go to: West Pacific TCs
Go to: Southern Hemisphere TCs

Atlantic TCs:

Eastern Pacific TCs:

Western Pacific TCs:

One at 01/14/26 18 UTC. Intensity = 25 kts, MPI = 9999 kts    

 

One History

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 0.9% 7.2% 8.7% 1.2% 0.7% 2.1% 1.0% 6.6% 3.4% 9.7% RIPA Consensus 1.9% 31.7% 13.0% 9.5% 8.5% 42.4% 23.4% 33.6% 31.4% 64.0%
AI-RI in RIPA Consensus 1.5% 23.5% 11.5% 6.7% 5.8% 28.9% 15.9% 24.6% 22.0% 45.9% Linear Discriminant Analysis 1.4% 22.9% 8.2% 1.9% 1.9% 25.9% 13.8% 42.0% 25.3% 62.6%
Logistic Regression 2.4% 40.5% 17.8% 17.1% 15.0% 58.9% 33.0% 25.3% 37.4% 65.4%
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current One intensity image current One intensity image
current One microwave image

Southern Hemisphere TCs:

Dudzai at 01/14/26 18 UTC. Intensity = 70 kts, MPI = 9999 kts    

 

Dudzai History

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 13.0% 21.7% 29.0% 18.7% 16.3% 21.7% 9.4% 20.6% 1.8% 6.2% RIPA Consensus 9.9% 16.0% 12.5% 12.5% 12.0% 9.1% 3.4% 5.2% 0.0% 0.0%
AI-RI in RIPA Consensus 10.9% 17.9% 18.0% 14.5% 13.4% 13.3% 5.3% 10.3% 0.6% 2.0% Linear Discriminant Analysis 12.6% 13.3% 11.5% 11.5% 11.5% 8.8% 3.6% 8.0% 0.0% 0.0%
Logistic Regression 7.2% 18.8% 13.5% 13.5% 12.5% 9.5% 3.1% 2.4% 0.0% 0.0%
------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------
current Dudzai intensity image current Dudzai intensity image
current Dudzai microwave image

Last Updated: 20260115 at 0155 UTC

Past 2026 Atlantic TCs



Past 2026 E Pacific TCs



Past 2026 W Pacific TCs



Past Southern Hemisphere TCs

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