 Tropical Depression Ten @-@ E formed on August 11 south of Mexico . It headed generally westward , and was upgraded into a tropical storm twelve hours after it formed and was named John . John fluctuated in strength as it headed west , always managing to stay at tropical storm strength . On August 20 , steady intensification began , and John was a major hurricane when it entered the central Pacific . It continued westward , reaching Category 5 intensity on August 23 . It passed around 245 miles ( 394 km ) south of Hawaii , and passed just north of Johnston Atoll on August 26 . John stayed at hurricane intensity until it crossed the dateline on August 28 , becoming a typhoon of the 1994 Pacific typhoon season . After weakening into a tropical storm , John recurved , looped , and recurved again . It reintensified , and was a hurricane when it recrossed the dateline to reenter the central Pacific . John headed north @-@ northeast until it went extratropical on September 10 , thirty one days after it formed . 
