Weekend Weather Outlook: Rain and Yellow Dust Advisory

South Korea is bracing for widespread rainfall expected to persist until dawn on Saturday. The Korea meteorological Management forecasts that most regions will experience precipitation due to a low-pressure system originating near Jeju Island and moving eastward. This weather pattern raises concerns about the potential mixing of yellow dust with the rain, originating from the Inner Mongolian Plateau and the Gobi Desert.

While the rain is expected to taper off in the morning, scattered showers may still occur in the afternoon across central regions, including the Seoul metropolitan area, Gangwon‘s inland and mountainous zones, and parts of Jeonbuk. Residents are advised to stay informed about local weather updates.

Regional Precipitation Forecasts

The anticipated rainfall amounts vary across different regions:

• Jeju Island: 20 ~ 80mm
• Gwangju, Jeonnam, Busan, Ulsan, Gyeongnam: 20 ~ 60mm (possibly exceeding 80mm in some areas)
• Jeonbuk: 10 ~ 60mm
• Daejeon, Sejong, Chungnam: 10 ~ 50mm
• Daegu, Gyeongbuk: 10 ~ 40mm
• Seoul, Incheon, Gyeonggi: 5 ~ 40mm (with some locations reaching 60mm)
• Gangwon, Chungbuk: 5 ~ 40mm
• Ulleungdo and Dokdo: 5 ~ 20mm

Air Pressure Dynamics and Fog Conditions

As the low-pressure system moves, the central region will gradually come under the influence of air pressure passing north of the country. Southern regions and Jeju Island will be situated at the edge of a high-pressure system located off the southern coast of the west Sea.

Motorists, especially near the west coast, should be aware of potentially dense fog, with visibility reduced to less than 200 meters in areas affected by sea fog. Inland regions may also experience fog, with visibility below 1 kilometer in some locations. Drivers are urged to exercise caution and use headlights when necessary.

Temperature Outlook

The morning low temperatures are expected to range from 14 to 18 degrees Celsius, while daytime highs will fluctuate between 21 and 29 degrees Celsius. Specific temperature forecasts for major cities include:

• Morning Lows: Seoul (16°C), Incheon (16°C), Suwon (16°C), Chuncheon (15°C), Gangneung (16°C), Cheongju (18°C), Daejeon (17°C), Jeonju (18°C), Gwangju (17°C), Daegu (17°C), Busan (17°C), Jeju (18°C)
• Daytime Highs: Seoul (24°C), Incheon (21°C), Suwon (24°C), Chuncheon (28°C), Gangneung (27°C), Cheongju (28°C), Daejeon (26°C), Jeonju (26°C), Gwangju (26°C), Daegu (28°C), Busan (23°C), Jeju (24°C)

Air Quality: Fine Dust Levels Expected to Remain Good

Despite the potential for yellow dust in the rain, the overall fine dust concentration is expected to remain at a good level due to favorable air dispersion conditions. However,individuals sensitive to air quality changes should take necessary precautions.

Health Advisory: protecting Your Scalp from Yellow Dust

Given the possibility of yellow dust mixing with the rain, health experts advise taking immediate action after exposure. If you experience rain without an umbrella, washing your hair promptly is recommended. Yellow dust contains heavy metals that can irritate the scalp, potentially leading to inflammation, allergic reactions, and even exacerbating hair loss symptoms.

According to recent studies, prolonged exposure to pollutants like those found in yellow dust can negatively impact hair follicle health. A 2023 study published in the Journal of Investigative Dermatology found a correlation between air pollution and decreased hair follicle cell activity.

Even without yellow dust, it’s best to avoid prolonged exposure to rain, as a wet scalp creates a favorable environment for bacterial growth.

To properly cleanse your scalp after rain exposure, follow these steps:

1. Thoroughly wet your hair with lukewarm water.
2. Apply shampoo and create a rich lather.
3. Using the pads of your fingertips,gently massage your scalp to remove dust and debris.
4. Rinse thoroughly, ensuring all shampoo is removed.

It’s crucial to avoid rubbing shampoo directly onto the hair strands, as this can cause damage. Instead, focus on cleansing the scalp by using your palms to massage the shampoo foam.