 
|  | 
Note that all probabilities refer to the occurrence of 1-min sustained wind speeds.| Probability Scale | 
|---|
 | Chance of Happening | Value |  | Chance of Happening | Value | 
|---|
 | Extremely Low | 10% |  | Medium-High | 60% |  | Very Low | 20% |  | High | 70% |  | Low | 30% |  | Very High | 80% |  | Medium-Low | 40% |  | Extremely High | 90% |  | Medium | 50% |  | Certain | 100% |  | 
*Note that the windspeed scale used here is the Saffir-Simpson hurricane wind scale. This differs from wind scales used by regional agencies other than the National Hurricane Center. The category applied to a storm on this site may differ from the category applied by an official regional meteorological agency.