Why does typhoon track suddenly turn toward?

Sub-tropical high pressure, guided air flow with typhoon path abnormal cause analysis.

Typhoon itself will not" go"

Typhoons are essentially like rivers in the atmosphere.The whirlwindIts Moving is mainly driven by large-scale circles around it", the most important of which isTropical High Pressure (Sub High Pressure) .

How to determine Typhoon Track

The subhigh is a giant thermal high-pressure system floating over the W Pacific Ocean, typhoon usually along it.The outer edge.Moving:

• PositionW → Typhoon is launchedW isGo to S Sea, Influence S
• Sub-high E retreat, appearing gap → Typhoon at the gapTurn toward influenced by E, Korean
• Broken into two rings → Typhoon in a saddle fieldMoving slowly, turning around.

An unusual path.

• Stagnation / Stagnation: Guided by a weak airflow, Typhoon "Lost", like 1986"Wayne" life history 23 days three times.
• Suddenly w: Subsequently increased W stretch.
• 双Typhoon 互旋 (藤原效应) Two typhoons pull each other at a distance of 1000 to 1200 km.

Why toward forecast is difficult

The sub-high advance retreat is affected by the multi-system of the middle latitude W winds, S sub-high pressure, etc., and the numerical pattern for the sub-high shape after 3 days is greater.Forecast differences tend to be the largest.It is recommended to look at the forecast of several agencies.