South Korea is getting heavy rain this week.
The city of Gwangju and the surrounding Jeollanam-do Province saw flooding last night and this morning,... and there are advisories and warnings in effect elsewhere.
Our Kim Da-mi explains why we're getting this fall monsoon. The most recent typhoon is long gone, but heavy rain is coming down nationwide.

The southwestern city of Gwangju got up to sixty-millimeters of rain an hour last night, causing drains to overflow in the city center and trees on the side of the street to fall over.

As of Tuesday morning, a flood advisory has been issued for the city of Daejeon, where several buildings and homes were flooded.
Flooded roads also made for a chaotic morning commute.

So what has caused this heavy rain?
The North Pacific Anticyclone, which had been destabilized by Typhoon Soulik, is now stable again.
On top of that, a tropical cyclone is sending water vapor up from the south, which meets up with cool air and causes these heavy downpours on the Korean Peninsula.

Some have called this phenomenon a fall monsoon and the start of autumn.
But experts explain that this isn't a true fall monsoon because the North Pacific Anticyclone has not disappeared yet.

According to the Korea Meteorological Administration, the heavy rain will last until Thursday nationwide.

After that, the air will feel pleasantly cooler. But there will still be days when it gets above 30 degrees Celsius, and we won't get to autumn until early September.
Kim Da-mi, Arirang News.