· 11/19/2009 · 

Summary of 2009 Atlantic Tropical Cyclone Activity and Verification of Author's Seasonal and 15-Day Forecasts published.

 · 11/04/2009 · 

Philip Klotzbach and co-authors have recently published in Journal of Geophysical Research-Atmospheres a paper entitled "An alternative explanation for differential temperature trends at the surface and in the lower troposphere". Click here for the paper.

 · 10/21/2009 · 

Colorado State University Forecast of Atlantic Hurricane Activity from October 22 - November 5, 2009 published.

 · [ MAIL ] · 

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Archived Forecasts:
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2009 Atlantic Seasonal Hurricane Forecast

Summary of 2009 Atlantic Tropical Cyclone Activity and Verification of Author's Seasonal and 15-Day Forecasts - PDF Format
Philip J. Klotzbach and William M. Gray
19 November 2009

Forecast of Atlantic Seasonal Hurricane Activity and Landfall Strike Probability for 2009 - PDF Format
Philip J. Klotzbach and William M. Gray
4 August 2009

Extended Range Forecast of Atlantic Seasonal Hurricane Activity and Landfall Strike Probability for 2009 - PDF Format
Philip J. Klotzbach and William M. Gray
2 June 2009

Extended Range Forecast of Atlantic Seasonal Hurricane Activity and U.S. Landfall Strike Probability for 2009 - PDF Format
Philip J. Klotzbach and William M. Gray
7 April 2009

Extended Range Forecast of Atlantic Seasonal Hurricane Activity and U.S. Landfall Strike Probability for 2009 - PDF Format
Philip J. Klotzbach and William M. Gray
10 December 2008

Summary of 2008 Atlantic Tropical Cyclone Activity and Verification of Author's Seasonal and Monthly Forecasts - PDF Format
Philip J. Klotzbach and William M. Gray
19 November 2008

(Partially supported by the National Science Foundation and AIG - Lexington Insurance Company)