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:

Sinlaku at 04/11/26 06 UTC. Intensity = 80 kts, MPI = 9999 kts    

 

Sinlaku 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 39.4% 57.4% 41.2% 37.2% 31.3% 50.1% 20.7% 21.6% 6.0% 25.6% 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 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
------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------
current Sinlaku intensity image current Sinlaku intensity image
current Sinlaku microwave image

Southern Hemisphere TCs:

Maila at 04/11/26 06 UTC. Intensity = 30 kts, MPI = 9999 kts    

 

Maila 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 0.5% 1.1% 0.8% 0.4% 0.1% 0.2% 0.2% 0.4% 0.0% 2.5% 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 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
------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------
current Maila intensity image current Maila intensity image
current Maila microwave image

Last Updated: 20260411 at 1340 UTC

Past 2026 Atlantic TCs


Past 2026 E Pacific TCs


Past 2026 W Pacific TCs
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Past Southern Hemisphere TCs
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