Passage: John affected both the Hawaiian Islands and Johnston Atoll, but only lightly. While John passed over 345 miles (550 km) to the south of Hawaiʻi, the islands did experience strengthened trade winds and rough surf along the southeast- and south-facing shores, and, while moving westward, on west-facing shores as well. The waves, ranging from 6 to 10 ft (1.8 to 3.0 m) in height, flooded beach parks in Kailua-Kona. Additionally, heavy rains on the Big Island of Hawaiʻi caused minor, localized flooding and some short-term road closures. No deaths, injuries or significant damages were reported in Hawaiʻi.Although John passed within 25 km (16 mi) of Johnston Atoll, it had weakened greatly to a Category 1 system by closest approach. Prior to the storm's arrival, waves between 20 and 30 ft (6.1 and 9.1 m) were reported on the island. Additionally, in the Northern Hemisphere, the strongest winds and heaviest rain lie to the north of a tropical cyclone, so the atoll, which lay to the south of the storm's path, was spared the brunt of the storm. Nonetheless, the 1,100-man personnel for the United States military base on Johnston Atoll had been evacuated to Honolulu as a precaution while John approached. Damage to structures was considerable, but the size of the island and relative functionality of the base led to low damage; monetary losses were estimated at close to $15 million (1994 US$).The remnants of John moved through the Aleutian Islands, producing a wind gust of 46 mph (74 km/h) in Unalaska. The storm brought a plume of warm air, and two stations recorded a high temperature of 66 °F (19 °C).

Question: How long did John pass south?
345 miles