The reason for the weakening of Typhoon Anemone is that "the water vapor replenishment decreased rapidly after landing."

There are too many land obstructions and undulations, which cause great friction to the typhoon and consume energy, causing the typhoon to rapidly weaken. The power of a typhoon does not weaken even if it moves a long distance on the sea, but its power will quickly weaken or even disappear after the typhoon makes landfall. The reason is that the surface of the ocean is relatively uniform, and the friction against typhoons is small, while the terrain on land is undulating, with trees and buildings, etc., and the friction is high, so the typhoon will weaken quickly after landing.

The mid-latitude westerly trough and cold air are located northward, and there is no cold air invading the "Hai Anemone" typhoon circulation. Therefore, the mid-latitude system is actually not conducive to extending the life history of "Hai Anemone" typhoon. It is not blocked by Taiwan's terrain. Taiwan's terrain has a certain blocking effect on Typhoon Haikui. Since Typhoon Haikui has been near the ridge line after landing or bypassed the high pressure ridge and continued to move westward, it is not blocked by Taiwan's terrain. of obstruction.

Typhoon Haikui’s landing details:

At 3:20 a.m. on August 8, 2012, Typhoon Haikui made landfall in Hepu Town, Xiangshan County. The central air pressure at the time of landing was 965. Pa, wind force 14 near the center. As of August 10, during the period under the influence of "Sea Anemone", strong winds of level 10 to level 12 generally occurred in the inland areas of Ningbo City, and winds of level 12 to level 14 along the coast; winds of level 10 lasted for 42 hours, and winds above level 12 have lasted for 27 hours, the measured maximum wind speed in Shipu Town, Xiangshan was 50.9m/s, and the maximum measured wave height measured by the Zhoushan Sea Buoy Station was 12.7 meters.

From August 8, 2012 to August 10, 2012, Ningbo City experienced heavy rains to heavy rains, and local heavy rains. As of 2 p.m. on the 8th, the city's average rainfall was 230 millimeters, including 301.3 millimeters in Ninghai and 283.3 millimeters in Xiangshan. 117 towns had more than 100 millimeters, 66 towns had more than 200 millimeters, 32 towns had more than 300 millimeters, and 13 towns had more than 400 millimeters. , the largest is Ninghai Huchen 540 mm.

The maximum rainfall in Xiangshan New Bridge in 6 hours was 214 mm, the maximum rainfall in Huchen, Ninghai in 12 hours was 366 mm, and the maximum rainfall in Shenzhen Town, Ninghai, in 24 hours was 418 mm. The main rivers in the city have 260 mm of precipitation and 262 million cubic meters of water in the Yao River Basin, 267 mm of precipitation and 701 million cubic meters of water in the Fenghua River and Yongjiang River basins, and 221 mm and 963 million cubic meters of water in the Yongjiang River Basin. The precipitation has caused rapid water levels in the river network. Rising, flood discharge pressure is huge.