What is Subtropical High Pressure? decides Typhoon toward" behind the scenes"

副热带高压是typhoon track的第一引导者: Typhoon 沿副高外围滑行, 副高强则Typhoon W is, 副高弱或断裂则Typhoon N上转 toward .

What is Tropical High Pressure?

Sub-tropical high pressure (abbreviated sub-high) is the heating high-pressure system over the air at 20°-40°, the Northwest Pacific sub-high is the overall switch that affects our country's weather": summer high temperatures, the Rain Belt's Position, the Typhoon's go toward, are all dominated by it.

On the weather chart, the subheight resembles a giant elliptical fortress, which rotates timely. its position and strength are changing daily.

Vice High How " Command "Typhoon

Typhoon itself has no power to go anywhere, it floats like a spiral in an atmospheric river, guided by a large-scale circle".

• High level, wTyphoon along the E wind side.W is—— Direct to S (such as Rammasun, Yagi’s path)
• High N, the back line rises.Typhoon turns toward. NW isLandfall or E Sea toward
• High E Retreat, Breakdown: Guidance airflow collapse, drilling air files on Typhoon N, orTurn around, the path is strange. (In-fa2021 wandering around the sea is typical)

Forecasters often say that typhoon is the forecast deviation directly turned into typhoon track’s forecast deviation.

Two classic scenes.

• Typhoon Track Changes: Autumn high starts seasonal E retreat S withdrawal, Position swing unstable, typhoon trackForecast difficulty is the highest year-round, and the country's model differences are the largest.
• Double Typhoon + High: Fukuoka effect overlapping side high changes, path Forecast can be called" hell difficulty".

How to apply this knowledge at TyphoonSays

Look at the multi-agency Forecast comparison: If the differences in the path of countries are presented " spherical dispersal ", it often means that the pattern for the sub-high evolution judgment is different.