Sudden cold burst signals the arrival of a dangerous snowsquall, freeze | weather alert

After a gentle Thanksgiving across the Midwest and Northeast, another round of suddenly cold air and lake-effect snow that can cause dangerous and dangerous trips from the Great Lakes to the Central and Northern Appalachian Mountains. The possibilities continue. Rapid freezing can create a dangerous situation for the driver, even in places where there is no snow on the road but it is wet.

According to, a new explosion of cold air could result in the lowest temperatures of the season so far in much of the Midwest and Northeast. AccuWeather Meteorologist. Following a short warm-up in the Midwest on Wednesday and a Thanksgiving afternoon in the east, cold air may be sufficient to cause whiplash in the weather. Temperatures often peak at 40 and 50 degrees Fahrenheit during short warm spells.

However, as the cold front moves east, winter air blows through parts of the Midwest from Canada to the southeast from late Thursday to eastern Friday. for example, Indianapolis We reach our mid-50s on Wednesday and we are in our 40s on Wednesday night. With cold air on Thanksgiving, Indianapolis temperatures can be nearly stable or drop slightly before entering the early twenties on Thursday night.

From the end of Thursday to Friday night, on busy highways, the air can cool fast enough and become slippery.

Unstable weather can occur even in front of cold fronts. From the Great Lakes and Ohio Valley on Thanksgiving Day to the Appalachian Mountains on Thursday night and Northeastern Interstate Highway 95 on Friday, rain showers or perhaps hours of stable rain spread. Gusts occur in front of and behind the system. The strongest winds, perhaps with gusts near 50 mph, can occur in central states. This strong gust can be difficult to handle on the highway and can lead to minor airline delays.

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According to AccuWeather’s senior meteorologist Adam Douty, the first arrival of cold air on Thursday afternoon in Michigan, northern Indiana, and western Ohio will cause a bit of snow, but the road surface temperatures will make it a slippery trip. It may not go down fast enough. But with the help of darkness, as cold air continues to pour and snow showers become more widespread, these same areas and further eastern locations are expected to be below freezing on Thursday night, he said. Added.

People who go home from a short vacation trip or who start shopping for vacation early should be careful. AccuWeather forecasters said drivers were icy and muddy from Thursday night to early Friday morning in Michigan, northern Indiana, eastern Ohio, western Pennsylvania, western New York, West Virginia, and western Maryland. He states that he needs to be prepared for the condition.

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When it snows or the snowsquall is heavy, slippery conditions can occur suddenly. In some cases, roads that appear wet may be frozen. These conditions can first occur on the surface of hills such as bridges and elevated roads, or in places that are not exposed to direct sunlight on sunny days.

As cold air flows over the warm waters of the Great Lakes, it absorbs moisture and releases clouds and snow. Lake effect.. “This time of year, as at the beginning of the week, may draw in dry air from higher atmospheres and further west of the plains, limiting the amount and extent of lake-effect snow accumulation. “There is,” added AccuWeather senior storm warning meteorologist Brian Wemmer, adding that the air is a bit colder and damp than earlier this week.

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The same dry air battle may be enough to evaporate water on many roads before freezing, but it may not be everywhere. Drivers traveling long or short distances on the road should expect the situation to change from place to place in this situation. Stretches such as the I-80, I-81, and I-90 are notorious for different weather conditions and stacking of multiple vehicles, especially in situations where snow showers and heavy snowsqualls occur.

“As the cold air takes root, the lake-effect snow belt is likely to travel from northeastern Ohio to western and northern Pennsylvania, western, central, and northern New York on Friday,” said Duti, a combination of gusts. Was added. Cold air can lead to several inches of snow, snowstorms and drifting areas, and poor travel conditions.

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On the Mid-Atlantic and parts of southeastern New England, some damp snow can mix with rain showers at the end of Friday. It is possible that it will snow in these areas on Friday night. However, the lake effect rarely extends to the Atlantic coast, and the advance of dry air may once again prevent such occurrences.

With the exception of highlands such as Poconos, Catskill and Berkshire, roads are unlikely to have sediment or ice conditions. Drivers adventuring across the mountains should pay attention to changes in weather conditions due to isolated snow showers on Friday evenings.

“Compared to Thursday across the Mid-Atlantic and the Central Appalachian Mountains of New England, Friday will feel like the region has jumped directly into the winter season, regardless of the extent of the lake’s impact or snow shower activity. “Douty said.

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The period from Friday to Saturday in the northeast can be quite rough and cold. AccuWeather RealFeel® temperatures in teens and twenties are common inside the coast and in the late thirties. Holiday shoppers will want to bundle up.


Temperatures can be slightly milder on weekends, but not as much as previous warm-ups. A storm from western Canada could even fall across the northern and midwestern plains later this weekend into the northeastern states by early next week. Storms emanating from this area, known as Alberta Clippers, can create snow bands if the air is cold enough and sufficient moisture is available.

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AccuWeather forecasters are already paying attention to the possibility of a storm that could affect central and eastern states later next week. According to AccuWeather’s senior on-air meteorologist Mark Mancuso, the system could put an end to the downturn in recent widespread storm conditions.

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Sudden cold burst signals the arrival of a dangerous snowsquall, freeze | weather alert

Source link Sudden cold burst signals the arrival of a dangerous snowsquall, freeze | weather alert

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