The phrase "approaching hurricane" means that a powerful, destructive storm is getting closer to an area and may hit soon.
Sentences with «approaching hurricane»
We're supposed to get more than two feet of snow... winds at or approaching hurricane force. (pethelpful.com)
CORPUS CHRISTI, TX - AUGUST 25: Waves pound the shore from approaching Hurricane Harvey on August 25, 2017 in Corpus Christi, Texas. (huffingtonpost.in)
A modern weather radar system, part of the World Meteorological Service, gives early warning of approaching hurricanes. (ambergrisCaye.com)