Weather Forecast
Low pressure connects to low pressure formed near the Philippines, may strengthen into a storm
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Two low pressure systems formed simultaneously off the coast of the Philippines, including 1 system that is likely to strengthen into a storm on May 5.
Cold air causes thunderstorms, temperature in the North drops to 6 degrees Celsius
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Today, May 4th, cold air has caused rain in the North and North Central regions, with temperatures in some places dropping to 6 degrees Celsius.
Cold air causes hail in Son La, flash flood warning in Phu Tho
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On the morning of May 4, cold air rushed in, causing the temperature in the mountainous region of Son La to drop deeply, accompanied by a high risk of tornadoes, lightning, and hail.
Warning to provinces and cities with thunderstorms today, in some places heavy rain over 50mm
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Forecast for today May 4, the southern area of the Northern Delta, from Thanh Hoa to Hue, will have scattered showers and thunderstorms, with heavy rain in some places.
Water level of some hydropower reservoirs in the North on May 4th
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The water level of hydropower reservoirs in the Northern region is maintained at a low to medium level, the reservoirs mainly operate regulated power generation, not yet overflowing.
Water levels of hydropower reservoirs nationwide on May 4th
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Many hydropower reservoirs across the country are at lower levels than normal water levels, and power plants are mainly operating for power generation.
Weather today May 4th: Cold air impacts, Northern region cools down
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Weather today May 4, Northern region has showers and thunderstorms in some places. Cool weather with the lowest temperature around 19 - 22 degrees C.
10-day weather forecast from May 4 to May 13 across the country
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The National Center for Hydro-Meteorological Forecasting forecasts the weather for the next 10 days (from the night of May 3 to May 13) in regions across the country.
Super El Nino dominates global weather, 2026 storm season faces major fluctuations
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Super El Nino is forecast to dominate storm activity in the Atlantic as the hurricane season begins.
Weather forecast for tomorrow May 4th nationwide
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Weather forecast for tomorrow May 4, Hanoi has showers and thunderstorms in some places, cool weather with the lowest temperature around 20-22 degrees C. Ho Chi Minh City sunny day.
Weather forecast tonight and tomorrow May 4
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Weather forecast tonight and tomorrow May 4th: Due to the influence of cold air, the Northern region will turn cool; with rain, locally heavy to very heavy rain.
Cold air causes rain and thunderstorms to reduce temperature, the North has places below 19 degrees Celsius
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Due to the impact of cold air, the North turns cool with the lowest temperature commonly from 19 - 22 degrees C, mountainous areas have places below 19 degrees C.
Warning of increased risk of extreme rain, identifying causes
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The cause of extreme rain is due to the dispute between the cold air mass and the hot, humid air mass before, creating a strong convection current.
Widespread thunderstorm forecast in the South
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According to the Southern Hydrometeorological Station, in the coming days, the area will have widespread thunderstorms in the late afternoon.
Forecast of the risk of receiving many unusual heavy rains in 2026
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It is forecast that the total number of widespread heavy rains in 2026 may be approximately or lower than the average, but extreme heavy rain phenomena tend to increase.
