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:

Southern Hemisphere TCs:

Narelle at 03/20/26 18 UTC. Intensity = 65 kts, MPI = 9999 kts    

 

Narelle 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 0.3% 2.0% 1.4% 0.5% 0.4% 0.6% 0.2% 1.3% 0.3% 4.4% RIPA Consensus 0.1% 1.0% 0.5% 0.2% 0.2% 0.2% 0.1% 0.3% 0.0% 0.6%
AI-RI in RIPA Consensus 0.1% 1.3% 0.7% 0.3% 0.2% 0.3% 0.1% 0.6% 0.0% 1.8% Linear Discriminant Analysis 0.0% 0.5% 0.3% 0.0% 0.0% 0.1% 0.1% 0.0% 0.0% 0.9%
Logistic Regression 0.2% 1.5% 0.7% 0.5% 0.4% 0.3% 0.0% 0.6% 0.0% 0.3%
------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------
current Narelle intensity image current Narelle intensity image
current Narelle microwave image

Last Updated: 20260320 at 2320 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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