Hôm nay (19/10), không khí lạnh tác động đến miền Bắc và gây mưa | VTV24

Key Concepts:

• Không khí lạnh yếu (Weak cold air)
• Mưa rào ngắt quãng (Intermittent showers)
• Nhiệt độ giảm (Temperature drop)
• Không khí lạnh tăng cường mạnh hơn (Stronger cold air reinforcement)
• Chuyển lạnh về đêm (Turning cold at night)
• Vùng núi rét (Mountainous areas cold)
• Ngập úng (Flooding)
• Lũ quét sạt lở đất (Flash floods and landslides)
• Mưa dông (Thunderstorms)
• Lốc xoáy (Tornadoes)
• Gió giật mạnh (Strong gusts)

Weather Update: Cold Air and Rainfall

This report details the current and upcoming weather patterns, focusing on the impact of cold air masses and rainfall across Northern, Central, and Southern Vietnam, as well as the Hoàng Sa and Trường Sa archipelagos.

1. Northern Vietnam (Bắc Bộ)

• Current Situation (Morning of October 20th): A weak cold air mass is affecting high mountainous areas in Lạng Sơn, causing rain. Scattered, light, and intermittent showers are expected across the eastern Bắc Bộ region throughout the day.
• Temperature: Due to the weak cold front, temperatures in Bắc Bộ have not significantly decreased, with a drop of only about 2°C compared to the previous day. The highest temperatures today are generally between 28°C and 31°C, including in Hoàn Kiếm district of Hanoi, indicating a less hot day.
• Upcoming Changes: The cold air is predicted to strengthen with continuous reinforcement over the next 1 to 2 days.
• Transition to Cold: Starting from the night of October 20th, both Bắc Bộ and Thanh Hóa will experience cold nights. Mountainous regions may even become cold.
• Projected Low Temperatures:
  • Eastern Bắc Bộ and Thanh Hóa: 19°C to 21°C.
  • Midland and mountainous Bắc Bộ: 17°C to 19°C.
  • High mountainous areas: Potentially below 16°C.

2. Central Vietnam (Trung Bộ)

• Rainfall: Rainfall will continue throughout the day and night in the region from Nghệ An to Quảng Ngãi.
• Severe Rainfall Warning: Areas from Southern Quảng Trị to Quảng Ngãi are at high risk of very heavy rainfall, potentially exceeding 220 mm. This poses a significant danger of flooding in low-lying areas and urban centers, as well as flash floods and landslides in mountainous regions.
• Southern Central Highlands and Southern Vietnam: Thunderstorms are expected in the afternoon and evening.
• Daytime Conditions: Until noon, sunny conditions are forecast.
• Projected High Temperatures:
  • Southern Central Highlands: 28°C to 31°C.
  • Southern Vietnam (Nam Bộ): 31°C to 34°C.

3. Maritime Weather

• Hoàng Sa Archipelago: Today, thunderstorms are forecast, with potential risks of tornadoes and strong gusts, posing a danger.
• Trường Sa Archipelago: Weather conditions are improving, with sunny skies, light winds, and calm seas.

Conclusion:

The weather forecast indicates a significant shift with the arrival of cold air, particularly impacting Northern Vietnam, bringing cooler temperatures and the potential for cold nights. Central Vietnam faces a high risk of heavy rainfall and associated hazards like flooding and landslides. Maritime areas in the Hoàng Sa are warned of severe weather, while Trường Sa is expected to have favorable conditions.