1C.8 Seasonal to Decadal Prediction of the Probability of Hurricane Landfall Along Different US Coastal Locations

Tuesday, 23 May 2000: 12:00 PM
William M. Gray, Colorado State Univ., Fort Collins, CO

An analysis of US tropical cyclone landfall by intensity category (TS, Cat 1, Cat 2, Cat 3 and Cat 4-5) over the last century reveals large differences in coastal location and periods. Variation in major (Cat 3 and Cat 4-5) hurricane frequency by coastal area and period is especially large along the US East Coast. On a statistical basis landfall can be well associated with variations in precursor global atmosphere and ocean conditions.

A hurricane destruction scale has been developed for each cyclone landfall intensity category. This hurricane destruction scale shows even larger coastal and period variations. A forecast scheme for specifying season to season variations of hurricane landfall probability and destruction potential is presented.

- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner