A thunderstorm which produces tornadoes , hail 0.75 inches or more in diameter, or winds of 50 knots (58 mph) or more. Structural wind damage may imply the occurrence of a severe thunderstorm. See approaching (severe).
SEVERE THUNDERSTORM
Meaning of SEVERE THUNDERSTORM in English
A comprehensive English glossary of weather. Полный английский глоссарий погоды. 2012