Heavy Showers of 50mm per Hour Until the 12th... Heatwave to Follow After the Rain Stops

All Water Vapor Turns to Rain, Very Heavy Precipitation Intensity
Large Regional Precipitation Variations... Some Areas Receive 100mm
Heatwave and Tropical Nights Begin from 8th to 12th... Daytime Highs Reach 34°C

On the 4th, when the number of new COVID-19 cases is expected to be around 700, citizens visiting the temporary screening clinic set up at Seoul Station Plaza are lining up to get tested. Photo by Kang Jin-hyung aymsdream@

[Asia Economy Reporter Han Jinju] From the 8th to the 12th, heavy showers exceeding 50mm per hour will pour down across various parts of the country. Starting from the 12th, a heatwave with daytime highs reaching up to 34 degrees Celsius and tropical nights will begin.

On the 8th, the Korea Meteorological Administration (KMA) forecasted that the stationary front will move southward and cold, dry air will flow in, causing localized and guerrilla-type heavy rainfall nationwide, different from previous patterns.

Forecaster Woo Jin-gyu of the KMA said, "There is a high possibility that the shower-type precipitation will approach 50mm per hour," adding, "Since the amount of water vapor is very high, once it transforms into rain clouds, all of it will fall as rain, resulting in very intense rainfall per hour."

Forecaster Woo explained, "There will be significant regional variations, and very heavy rain exceeding 100mm could fall in a short time," and "Shower-type precipitation has a short duration from occurrence to dissipation and pours down in a short time, so the preparation time is shorter than during the monsoon."

The KMA emphasized that the amount of rain pouring at once will be much greater than spring showers, requiring preparedness. The regional rainfall variation is expected to be very large, and the forecasted rainfall range is wide, from 1 to 100mm.

From the 12th to the 16th, a heatwave is expected with daytime highs reaching up to 34 degrees Celsius. As the hot and humid North Pacific High and the dry and hot Tibetan High settle over the Korean atmosphere, heatwaves during the day and tropical nights at night will continue.

The start of the heatwave does not mean the end of the monsoon. Although there is a possibility that the North Pacific High and Tibetan High will overlap for a long time, the KMA explained that it is too early to predict an extreme heatwave like in 2018.

Forecaster Woo said, "When comparing various prediction models, our model strongly predicts the influence of tropical high pressure, but other models predict it weakly," adding, "Given the high uncertainty, it is too early to talk about the end of the monsoon."

This content was produced with the assistance of AI translation services.