South Korea: Mild west, rain and snow in the east; weather threatens supply chains.

South Korea’s weather today showed a split between the west and east. Western areas, including Seoul, were clear with mild daytime temperatures, while eastern regions continued to see rain or snow. For U.S. readers, the pattern matters because South Korea is a major producer of semiconductors and electronics components, and winter storms can disrupt logistics and manufacturing in global supply chains.

In the Gangwon mountains, a heavy snowfall advisory remained in effect, with forecasters predicting more than 20 cm of snow by tomorrow afternoon. On the East Coast, about 1–3 cm of snow or 5–20 mm of rain were expected.

Forecasters warned that these regions could experience gusty winds, lightning, or hail, urging people to stay cautious about weather-related safety hazards.

Temperatures were set to swing widely. Morning temperatures were about 1 degree Celsius in the west, with daytime highs around 12 C in Seoul and 14 C in Gwangju.

Tomorrow is expected to be largely clear nationwide, though cloudier conditions may develop again in parts of the afternoon.

In central regions, Chuncheon could fall to -1 C at dawn, while Seoul may dip to around 2 C, with daytime readings near 12 C.

In the southern regions, morning temperatures will remain chilly, with Jeonju and Daegu forecast to reach about 12 C by afternoon.

Looking ahead to the weekend, skies are forecast to stay largely cloudy with notable day-to-night temperature swings across the country.

This weather briefing is provided by MBN and presented by meteorologist Kim Da-yeong.