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Heavy snow and ice from an early spring storm will threaten to cause travel problems and power outages from parts of Wisconsin and Michigan to a large part of Quebec prior to the end of the week.
The same storm producing blizzard conditions over parts of Colorado and Wyoming on Wednesday will spread a swath of snow and ice across the Great Lakes region, St. Lawrence Valley and areas farther north in Canada.
Road conditions will vary from wet to slushy during the day. However, lower road surface temperatures at night will cause paved surfaces to range from slushy to icy and snowcovered.
A band of 12-18 inches (30-45 cm) of snow will extend from Alpena, Michigan, to Sudbury, Ontario. In some cases, the snow will fall at the rate of 1-2 inches (3-6 cm) per hour.
Airline passengers and motorists should anticipate significant delays with possible road closures and flight cancellations. Disruptions to daily activities are possible.
The snow and ice will weigh down tree limbs. Enough of a breeze can occur during the storm to cause the tree limbs to shift and break, perhaps leading to sporadic power outages.
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Although freezing rain is increasingly rare in the spring, it can occur under the right conditions.
Up to 0.50 of an inch of freezing rain glazed surfaces in central part of the Lower Peninsula of Michigan during Thursday morning.
"The greatest risk for a significant period of freezing rain and sleet into Thursday night is from central Ontario to part of southern Quebec," according to AccuWeather Senior Meteorologist Brett Anderson.
The snow and ice will graze northern parts of New York state, Vermont and New Hampshire, as well as northwestern Maine and northern New Brunswick.
"The greater Toronto, Ottawa and Montreal areas will receive a mixture of rain, ice and wet snow from the storm," Anderson said.
Similar slippery conditions can occur north and west of Detroit, including Lansing and Flint, Michigan, during the Thursday morning commute.
"Conditions from Ottawa to Montreal and Quebec City will deteriorate as snow changes to sleet and freezing rain and continues Thursday night," Anderson said. "The heaviest snow will fall north of these cities."
In the wake of the storm, daytime temperatures will be above freezing and and nighttime temperatures will be below freezing for a few days. Runoff from melting during the day will freeze at night, leading to areas of black ice.
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La antigua estación meteorológica con la que contaban, fue destruida tan pronto se comenzaron a registrar las primeras ráfagas del huracán María en septiembre del pasado año.
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Sizzling sunshine, light winds and very warm and humid air will persist and make for uncomfortable conditions for those dealing with ongoing flooding and increasing numbers of people beginning to clean up after flooding from Florence.
AccuWeather, a global leader in digital media and weather-related big data, donated a new meteorological station to a local chapter of the American Meteorological Society in Puerto Rico, after Hurricane Maria destroyed their old equipment.
A newly formed tropical depression will bring needed rainfall, but also a flood risk to the southwestern United States and southern High Plains during the second half of the week.
About 3.4 million chickens and turkeys and 5,500 hogs have been killed in floodwaters from Florence in North Carolina. Health and environmental concerns have been raised as flooded power plants, industrial sites, and animal-manure lagoons may leak toxic waste into drinking water.
La científica Ada Monzón advirtió a millones de puertorriqueños del 'monstruo' que era el huracán María con educación y apostando a la resiliencia.
Nearly a week after Florence’s initial landfall in the Carolinas, the worst of the flooding is still unfolding as rivers that have hit major flood stage still have not crested.