Tropical Storm Risk (TSR)
    
    
    
    
        
            
Hurricane NIGEL: Modelled wind field at 45 hours lead
        
    
    
    
    
 
|  | 
| Tropical Cyclone Windspeed Scale | 
|---|
 | Strength | Category | 1 Minute Maximum Sustained Winds | 
|---|
 | knots | mph | km/h | 
|---|
 | Tropical Depression | TD | <34 | <39 | <63 |  | Tropical Storm | TS | 34-63 | 39-73 | 63-118 |  | Hurricane | Cat 1 | 64-82 | 74-95 | 119-153 |  | Hurricane | Cat 2 | 83-95 | 96-110 | 154-177 |  | Intense Hurricane | Cat 3 | 96-112 | 111-129 | 178-208 |  | Intense Hurricane | Cat 4 | 113-136 | 130-156 | 209-251 |  | Intense Hurricane | Cat 5 | >136 | >156 | >251 |  | 
 
 
 
    
                    
            
               
                
                |   | Researched and Developed by
                Mark Saunders,
                
                Frank Roberts
                and
                
                Adam Lea TSR Version 4.1 Copyright © 2023
                EuroTempest
                    , London,
                    UK
 Last updated on
20 Sep, 2023 20:44 GMT
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