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:

Penha at 02/05/26 12 UTC. Intensity = 40 kts, MPI = 9999 kts    

 

Penha History

AI-RI Matrix of RI probabilities RIPA Matrix of RI probabilities
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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 0.2% 2.5% 1.0% 0.5% 0.5% 1.3% 0.6% 1.1% 1.3% 2.6% 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
------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------
current Penha intensity image current Penha intensity image
current Penha microwave image

Southern Hemisphere TCs:

Last Updated: 20260205 at 1830 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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