 A tropical wave passed through the islands of Cape Verde on September 6 and tracked westward at about 19 mph ( 31 km / h ) . Early on September 9 , a tropical depression developed while located about midway between Cape Verde and the Lesser Antilles . The depression moved northeastward and by September 10 it strengthened into Tropical Storm Flora . A reconnaissance aircraft flight into the storm on September 11 recorded winds of 75 mph ( 120 km / h ) ; thus , Flora became a hurricane . Around the time , the storm attained its peak intensity with maximum sustained winds of the same velocity and a minimum barometric pressure of 994 mbar ( 29 @.@ 4 inHg ) . Flora then accelerated northeastward toward the Azores . During another reconnaissance flight on September 12 , no evidence of a tropical cyclone was reported . Thus , Flora became extratropical at 1200 UTC that day . 
