Even in the torrential rain that seemed to pierce the sky... "The heat doesn't go away"

Heavy Rain of 'Extreme Downpour' Level Once Fell in Gongju, Chungnam
Rain in Central Region Every Day Until the 17th... Full-Scale 'Jangma'

Widespread heavy rain is expected nationwide, but the heat is not expected to subside.

'July Hail' Observed... Reason for Atmospheric Instability

[Image source=Yonhap News]

According to Yonhap News on the 10th, around 7 a.m., thunderstorms accompanied by gusts of wind brought rainfall of 30 to 60 mm per hour to eastern Gyeonggi, inland Gangwon, Chungbuk, Jeonnam, and northern inland Gyeongbuk.

Currently, heavy rain advisories are in effect in various parts of the central region, western Jeonnam, and northern inland Gyeongbuk.

Hail was detected in some areas. Hail in July is a very unusual phenomenon that occurs when the atmosphere is highly unstable.

In Jeongan-myeon, Gongju-si, Chungnam, 63 mm of rain fell in the previous hour and 98 mm in the previous three hours as of 5:24 a.m.

If this area were part of the Seoul metropolitan area, it would be classified as an 'extreme heavy rain' event, triggering the issuance of emergency disaster messages. Since this summer, a pilot project has been operating in the metropolitan area where the Korea Meteorological Administration sends emergency disaster messages for extreme heavy rain when rainfall meets both the '50 mm in 1 hour' and '90 mm in 3 hours' criteria.

Strong Winds May Cause Rain to Blow Inside Umbrellas

A pressure trough passing over the northern part of Korea will bring heavy and widespread rain to most regions today.

Although heavy rain is expected to pour down, instantaneous wind speeds will reach around 70 km/h (20 m/s), which may cause rain to blow inside umbrellas.

The expected rainfall amounts today are 20 to 80 mm in the central region (excluding Gangwon Yeongdong), Honam, Gyeongbuk, and Jeju (with over 100 mm in southern Gyeonggi, Gangwon Yeongseo, Chungcheong, Honam, and northwestern inland Gyeongbuk), and 5 to 60 mm in Gangwon Yeongdong, Gyeongnam, and the five western islands.

The influence of the pressure trough is expected to continue until the 12th.

Accordingly, rainfall on the 11th is expected to be similar to today. The forecasted rainfall on the 11th is 30 to 80 mm in the central region (excluding Gangwon Yeongdong), Honam, and northern inland Gyeongbuk (with over 100 mm in many central inland areas), and 5 to 40 mm in Gangwon Yeongdong, Gyeongbuk (excluding northern inland), Gyeongnam, and Jeju.

After the pressure trough passes over the north, the stationary front approaching from the Shandong Peninsula in China will gradually begin to affect the area. This stationary front is formed as both the Tibetan High and the North Pacific High expand their influence. It will gradually compress into a shape that is long east-west and narrow north-south, oscillating north-south, bringing rain to Korea throughout the week.

The central region is expected to have rain until the 17th, while Jeju and the southern regions will have rain every day except the 13th and 14th.

The position of the stationary front and the timing and concentration of rainfall may vary depending on the expansion of the North Pacific High. Therefore, it is necessary to prepare for heavy rain and frequently check the latest weather information.

Today's Daytime Highs Expected to be 26~33°C, Caution Needed for Swells on the Southern Coast

Although heavy rain is expected, the heat will not subside.

At 7 a.m., temperatures in major cities were Seoul 23.2°C, Incheon 23.3°C, Daejeon 21.7°C, Gwangju 22.9°C, Daegu 25.8°C, Ulsan 23.9°C, and Busan 23.7°C.

Daytime highs are expected to range from 26 to 33°C, with most areas recording temperatures above 31°C, and heatwave warnings have been issued for most areas south of Chungcheong.

Swells will continue to affect the southern coast and Jeju coast for the time being, with waves high enough to surpass breakwaters and rocky shores, so caution is needed.

From this afternoon, winds of 30 to 60 km/h (9 to 16 m/s) and waves 1.5 to 3.5 meters high may occur in the southern offshore waters of the East Sea, and from nighttime in the outer offshore waters of the central East Sea.

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