Heavy Rain of Around 100mm Nationwide; Heat Wave to Subside

Today (June 19), Seoul reached a high of 34°C (93°F), marking the peak of the current heat wave.

As daytime temperatures soared, the atmosphere became highly unstable, leading to intense downpours.

Strong and heavy rain is expected across the country through tomorrow. Please take extra precautions to prevent any damage.

In particular, this rain will fall very heavily until tomorrow morning.

The nationwide hourly rainfall is expected to be between 20 and 30mm, which is enough to make it difficult to maintain visibility while driving.

Additionally, up to 50mm per hour is expected in the southern coastal areas, near Jirisan Mountain, and on Jeju Island.

Please be especially cautious of flooding, as roads can become submerged in an instant.

Looking at the expected rainfall, up to 250mm or more is forecast for the mountainous regions of Jeju, up to 120mm or more for the southern coast and near Jirisan Mountain, up to 150mm or more for Gangwon Yeongdong, and up to 100mm for Seoul and the rest of the country.

This rain will mostly taper off by tomorrow night.

This rainfall is caused by a stationary front—or monsoon front—temporarily moving northward, accompanied by a low-pressure system, which is bringing heavy rain similar to the monsoon season.

In particular, strong winds are expected tomorrow along the east coast of Gangwon, the southern coast, and Jeju Island.

The heat wave will subside. Tomorrow, the daytime high in Seoul will only reach 25°C (77°F).

Next week, there will be no severe heat exceeding 30°C (86°F), and rain is forecast for Jeju on Monday and Wednesday.

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