Archive replay · live forecasts → CPHC
John came within 420 km of Hawaii, passing to the south as a tropical storm on 28 August 1978. It had peaked far out at sea at 90 kt and was weakening as it neared the islands. It pre-dates the digital forecast archive, so only the observed track survives.
Replay the track, hour by hourAt its closest, John was 420 km (261 mi) from Hawaii on 28 August 1978, as a tropical storm with 35 kt (40 mph) winds, approaching from the south.
No machine-readable official forecast survives for this storm. The digital forecast archive for the eastern and central Pacific begins in 1988, so the replay runs on the observed track instead.