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:

Dolphin at 08/06/26 18 UTC. Intensity = 80 kts, MPI = 99 kts    

 

Dolphin 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 1.6% 10.7% 2.8% 1.3% 1.1% 1.5% 0.2% 0.5% 0.1% 0.4% RIPA Consensus 13.3% 28.3% 28.3% 28.3% 22.6% 17.7% 5.6% 8.0% 1.6% 3.1%
AI-RI in RIPA Consensus 9.4% 22.4% 19.8% 19.3% 15.4% 12.2% 3.8% 5.5% 1.0% 2.2% Linear Discriminant Analysis 14.5% 19.7% 19.7% 19.7% 8.3% 24.2% 7.4% 5.9% 1.4% 2.6%
Logistic Regression 12.1% 36.9% 36.9% 36.9% 36.9% 11.2% 3.8% 10.2% 1.7% 3.7%
------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------
current Dolphin intensity image current Dolphin intensity image
current Dolphin microwave image

Thirteen at 08/06/26 18 UTC. Intensity = 30 kts, MPI = 126 kts    

 

Thirteen 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 0.1% 2.7% 0.9% 0.3% 0.2% 1.0% 0.4% 2.3% 0.6% 17.6% RIPA Consensus 0.0% 0.4% 0.2% 0.0% 0.0% 0.7% 0.1% 0.7% 0.3% 9.6%
AI-RI in RIPA Consensus 0.0% 1.1% 0.4% 0.1% 0.1% 0.8% 0.2% 1.2% 0.3% 12.2% Linear Discriminant Analysis 0.0% 0.2% 0.2% 0.0% 0.0% 0.1% 0.1% 0.4% 0.1% 11.7%
Logistic Regression 0.1% 0.6% 0.1% 0.1% 0.1% 1.3% 0.2% 1.0% 0.5% 7.5%
------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------
current Thirteen intensity image current Thirteen intensity image
current Thirteen microwave image

Southern Hemisphere TCs:

Last Updated: 20260806 at 2320 UTC

Past 2026 Atlantic TCs

Arthur
Bertha


Past 2026 E Pacific TCs

Amanda
Boris
Cristina
Douglas
Elida
Fausto
Genevieve


Past 2026 W Pacific TCs

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Past Southern Hemisphere TCs

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