Why is the Typhoon Rainstorm so strong?

Typhoon Rainfall Mechanism, Distant from Rainstorm and City Prevention Point.

Typhoon is the "superpump"

A mature typhoon can extract about every day from the ocean 20 billion tonsAlthough the intensity is weakened after the landfall, but the carried water vapor rises in the terrain, and the cold air converges into extreme rainfall.

Three types of rainfall

• The entire rain.: Eye walls and spiral rains pass through the area of heavy rainfall.
• Growth of terrain: Water vapor hits the mountains is forced to be raised, and the rainfall can zoom in several times.
• Rainstorm for Long Distance (Typhoon) Typhoon residual flow combined with cold air, can produce Extreme rainstorms thousands of kilometers away from the center – 2021 River S"7·20"Extreme rainstorms are associated with Typhoon "In-fa" long-distance water vapor transportation.

Not far from landfall.

• The Typhoon Landfall.Rain to rain.It is stronger than landfall.
• The residual stream can still produce extreme rainfall after deepening inland (such as 2023"Doksuri" residual causing Extreme rainstorms)
• The mountains should be careful.Mountains and stones.The city's low-city area is on guard.Inside

Primary Prevention

Rainstorm Red Early Warning to avoid going out; Driving when the accumulated water immediately abandon the car escape (water depth exceeds the exhaust pipe that is, there is a risk of extinction, 30cm flowing water can run out of the car); the mountainous masses obey the transfer arrangement, do not return immediately after the rain stop - the mountain flood stone flow is often delayed at the rain peak.