Typhoon Hongxia's path: Expert lists '4 required courses' for harmless passage

Typhoon Hongxia, which formed on the evening of July 23, is currently developing and moving in a northwestward direction. Initial forecasts suggest the typhoon is heading towards a "harmless passage" relative to Taiwan, according to meteorological expert Lin De-en.

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The first is to maintain or even accelerate the speed of movement.

However, Lin emphasized that for Hongxia to have a minimal impact on Taiwan, it must successfully navigate four critical conditions, which he termed "required courses." The first is to maintain or even accelerate its current speed of approximately 27 to 30 kilometers per hour. A faster pace would help the typhoon move away from Taiwan more quickly.

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The second is to reduce the degree of northward path deviation.

The second condition involves limiting any northward deviation in its path. Lin explained that if Hongxia stays close to the maritime typhoon warning line without venturing further north, its influence on Taiwan would be considerably reduced. The third crucial aspect is to avoid further strengthening. While the typhoon is expected to intensify slightly as it enters the South China Sea, with maximum sustained winds potentially increasing and the storm's radius expanding, Lin hopes it will "manage itself" and refrain from growing larger or stronger.

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The third is to avoid continuous strengthening.

Finally, Lin stressed the importance of the typhoon not drawing in southwest airflow after it has passed Taiwan. This would prevent potential heavy rainfall and adverse weather conditions. Lin's hope is that Hongxia will "come quietly and leave quietly," leaving Taiwan unaffected. The expert shared these insights on his Facebook page, "Teacher Lin's Weather Station."

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The fourth is that after the typhoon moves away, it does not introduce southwest airflow.