This term (in UK Met.Office use) is only used in shipping bulletins and associated Gale/Storm warnings. It is strictly defined as a mean (10 minute) wind of 64 knots or more. (Gusts not defined) (See also comments at Severe Gale).
HURRICANE FORCE
Meaning of HURRICANE FORCE in English
Weather and meteorology English vocabulary. Английский словарь погоды и метеорологии . 2012