According to AccuWeather's latest weather forecast, a more mild weather period is likely to form in the second week of February, affecting most of the Midwest and Eastern United States. Temperatures are forecast to gradually increase, ending the prolonged cold days from the beginning of the month.
It sounds paradoxical, but according to meteorologists, a strong extreme vortex is good news for those who are looking forward to warm weather in the US. When the extreme vortex is stable and strong, the cold air mass will be "locked" in the Arctic region. Conversely, when the extreme vortex weakens, cold air easily spills south, causing unusual cold spells.
Mr. Brett Anderson, senior meteorologist at AccuWeather, said that in the coming days, the polar vortex is forecast to strengthen again, pulling a strong but stable jet stream in the west-east direction over US territory and southern Canada.
This allows warm air from the Pacific to spread inland, significantly reducing cold levels in central and eastern states.
The US National Oceanic and Atmospheric Administration (NOAA) Weather Forecast Center said that in the week starting from February 9, many areas from the western mainland to the central and eastern United States will record higher temperatures than the multi-year average.
Notably, the Plains region may witness the strongest temperature increase, higher than normal for the beginning of February. According to NOAA, daytime temperatures may reach above 15 degrees Celsius, even reaching 20 degrees Celsius, spreading further north to states such as Montana and South Dakota on February 9 and 10.
For Vietnam, after a short cold spell at the beginning of the month, from February 10th (December 23rd of the lunar calendar), temperatures in most of the Northern and Central regions began to gradually increase, rainfall decreased, and air humidity tended to be lower than the previous period, signaling a stable warming trend until Tet.
According to the Vietnam National Center for Hydro-Meteorological Forecasting, on the day and night of February 10 (December 23rd of the lunar calendar), the North will have light rain in some places, especially on the night of February 10, the Northeast region will have rain, scattered light rain. Cold weather, deep cold in mountainous areas. Highest temperature 17-20 degrees C; mountainous areas in some places below 16 degrees C; especially the Northwest region 19-22 degrees C, in some places above 23 degrees C.
Lowest temperature 13-16 degrees C, mountainous areas in some places below 12 degrees C.
From February 11-19 (from December 24 to the 3rd day of Tet), the North has rain in some places, early morning fog and light fog scattered; especially on February 11, the Northeast region has rain and scattered light rain. Cold at night and morning, cold on February 11.
Highest temperature 19-23 degrees C; mountainous areas have places below 19 degrees C, especially on February 11, the temperature is 17-20 degrees C.
From February 14 (December 27 Tet): 23-26 degrees C, especially the Northwest region 26-29 degrees C.
Lowest 15-19 degrees C, mountainous areas in some places below 15 degrees C.
From February 20-22 (from the 4th to the 6th day of Tet): Northern region has scattered rain; the weather turns cold, mountainous areas have places with deep cold and severe cold. Highest 21-24 degrees C, the West has places higher. Lowest: 11-14 degrees C, mountainous areas 7-10 degrees C.
