Mostly clear nationwide on Hangul Day; rain in southern regions and Jeju on the 10th–11th [FN Weather]

[Financial News]  
The country will be mostly clear on Hangul Day, the 9th, but rain is expected from the 10th, mainly in the southern regions and Jeju Island. The rain is forecast to continue through the 11th. Rain is also possible early next week, but the areas affected and timing could change depending on the influence of the two typhoons over waters southeast of Japan.
At its regular forecast briefing on the 8th, the Korean Meteorological Administration (KMA) forecast that the country would be mostly clear through the 9th under the influence of a migratory high-pressure system. However, fog is expected in some inland areas from the predawn hours through the morning of the 9th. Dry conditions inland and in Gangwon’s Yeongdong region mean people should take care to prevent fires, including wildfires.
On the 10th, the high-pressure system will move east, allowing warm, moist air from the south to flow into Korea. As a result, rain is expected to begin in the southern regions and Jeju Island in the morning and continue through the 11th.
The influx of water vapor from the south, combined with the effects of an upper-level trough approaching from the west, could bring heavy rain to some areas. Thunder, lightning and gusty winds are possible over the South Sea and waters off Jeju Island.
Rain is expected mainly in and south of Chungcheong. However, depending on the position of the high-pressure system and the strength of the southerly winds, it could spread to some central areas. The amount of rain may also vary.
Rain is also possible early next week. The current medium-range forecast calls for rain on the 13th, mainly in the central regions. However, the two typhoons over waters southeast of Japan could affect the surrounding weather systems, so the timing and areas of rain remain uncertain.
Temperatures will be somewhat higher than they have been recently. During this holiday period, with no strong cold air moving down from the north, daytime temperatures in western areas will be 2–3 degrees above average. However, morning temperatures will be low inland and in mountainous areas, with the day-night temperature difference reaching 10–15 degrees or more in some places.
Gong Sang-min, a forecasting analyst at the Korean Meteorological Administration, said, “There is still considerable variability in precipitation depending on changes in the surrounding weather systems on the 12th and 13th,” adding, “We urge you to check the latest weather information throughout the holiday.”

[email protected] Lee Bo-mi Reporter