Heat Wave Advisory Issued for Seoul Metropolitan Area; Rain Expected Nationwide Starting Friday Night

The first heat wave advisory of the year was issued for the Seoul metropolitan area today (June 18).

Sweltering heat with a perceived temperature of around 33°C (91°F) is expected to continue, mainly in the Seoul metropolitan area and North Gyeongsang Province, through tomorrow.

Meanwhile, there is a forecast for rain between tomorrow and the day after that will help cool down the heat.

The rain is expected to begin in Jeju tomorrow morning, spread to the Honam region by late afternoon, and expand nationwide by night.

This rainfall is expected to be particularly heavy, especially in Jeju and the southern coastal areas.

As a large amount of water vapor flows in from the south, heavy rain with an intensity of up to 50mm per hour is expected, particularly between tomorrow night and the morning of the day after.

In terms of total rainfall, more than 250mm is expected in the mountainous regions of Jeju, up to 120mm or more in the southern coastal areas and near Jirisan Mountain, and up to 100mm in other parts of the southern provinces. The Seoul metropolitan area will see relatively less rain, with 10 to 40mm expected.

Now, let's take a look at the position of the stationary front.

It stretches from southern China to the waters south of Japan.

Accompanied by a low-pressure system, it will approach the Korean Peninsula tomorrow, starting with rain in the Jeju region.

While rain will begin in the central regions tomorrow night, there may be scattered showers in the afternoon as well.

Morning temperatures will be humid and muggy, with Seoul starting at 23°C (73°F).

Daytime temperatures will climb to 33°C (91°F) in Seoul and Chuncheon.

Most of the rain will taper off by Saturday evening, but it will continue until Sunday afternoon in the Yeongdong region of Gangwon Province.

The heat is expected to be less intense next week compared to this week.

(Weather Caster Nam Yu-jin)
※ Please note: This article was translated by AI and may contain errors.