 Shortly after 1700 UTC on September 22 , the eye of Janet passed over Barbados . A reconnaissance flight into the hurricane discovered that the Hurricane Janet 's eye measured only 20 mi ( 32 km ) in diameter , with gale force winds extending 120 mi ( 190 km ) away from the center of circulation . The flight also reported a minimum barometric pressure of 979 mbar ( hPa ; 28 @.@ 91 inHg ) . After passing between the islands of Grenada and Carriacou in the morning hours of September 23 , Janet entered an area of unfavorable conditions in the eastern Caribbean Sea . As a result , the hurricane became disorganized , with winds weakening to 90 mph ( 145 km / h ) by 1200 UTC on September 23 . A U.S. Navy reconnaissance plane entered the hurricane early on September 24 , reporting a lack of organization , and noting an indiscernible center of circulation with weak rainbands . However , the hurricane began to reintensify in favorable conditions , regaining major hurricane strength by 1200 UTC on September 24 and subsequently Category 4 hurricane intensity by the next day . 
