Typhoon HALONG was formed in Mariana Islands. The formation of the typhoon is usually decided at 9AM, 3PM, 9PM, 3AM of JST (Expression of Time), and it is relatively rare to decide typhoon formation at noon JST. Because of this, the typhoon information is also unusual; showing only 24-hour forecast for the typhoon track in Typhoon Track Forecast. Typhoon information will return to its normal format on 3PM of today.