30-kt wind radius < 500 km
Large 500 km ≤ 30-kt wind radius < 800 km
Very large 800 km ≤ 30-kt wind radius

Intensity/Category

Tropical Depression maximum wind speed < 34 kt 
Tropical Storm 34 kt ≤ maximum wind speed < 48 kt
Severe Tropical Storm 48 kt ≤ maximum wind speed < 64 kt
Typhoon 64 kt ≤ maximum wind speed < 85 kt
Very strong Typhoon 85 kt ≤ maximum wind speed < 105 kt
Violent Typhoon 105 kt ≤ maximum wind speed
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