Tropical cyclone wind radii estimation using an empirical inland wind decay model

A method for estimating the maximum wind, and 34,50, and 64 kt wind radii of landfalling tropical cyclones utilizing the operational NHC storm structure and track forecasts and a revised version of the Kaplan/DeMaria decay model was developed as part of the NOAA Joint Hurricane Testbed (JHT).  This technique was declared operational by the NHC for use in both the Atlantic and East Pacific basins prior to the 2008 Hurricane Season.  


A revised tropical cyclone rapid intensity index for the Atlantic and East Pacific basins
A revised version of the original SHIPS rapid intensity index (RII was developed for the Atlantic and East Pacific basins as part of the NOAA Joint Hurricane Testbed (JHT). The revised RII uses predictors from the Statistical Hurricane Intensity Prediction Scheme (SHIPS) to estimate the probability of rapid intensification (RI) for 3 different RI thresholds (25,30, and 35 kt) utilizing linear discriminant analysis. The RII was declared operational by the NHC prior to the 2008 Hurricane Season.