This is eerily similar to Nepartak in July 2016 - not saying it will be the same - almost certainly won't - but it was forecast to head north then only in the last 24hrs did it lock-in on Taidong - same time it dramatically ramped up speed. The net result was we had about 10 hours of daylight to prepare for a Cat-5.

As is, it's due to hit Wednesday night. Why do typhoons almost always strike at night?