Threat of drenching storms to shift from Midwest to Northeast
By
Ryan Adamson, AccuWeather meteorologist
Published Jul 21, 2020 10:22 AM EST
AccuWeather's Dexter Henry looks at how the Port Authority of NY & NJ relies on technology to keep an eye on the quality of their infrastructure.
After a smattering of severe weather reports in the High Plains on Monday, forecasters say the threat for storms will move a bit farther to the east into Tuesday night, targeting parts of the Midwest, before bringing the risk of violent storms in the parts of the eastern United States at midweek.
The storms on Monday produced a sizable area of high winds, large hail and even a few tornadoes, especially in western South Dakota and western Nebraska. However, the risk for severe weather may be a bit lower there and in other locations across the country into Tuesday night. With that said, cities such as Des Moines, Iowa; Minneapolis, Chicago; and Indianapolis may all have heavy thunderstorms.
The main threat with any thunderstorms will be torrential downpours. Heavy rain that falls in a short period of time or multiple thunderstorms moving over the same area could cause ponding on roadways and even some to become completely covered with water. Motorists are urged to always find an alternate route if they encounter a flooded road.
Any storms that become heavy could also contain strong winds and hail as well. The most likely time for storms with those hazards would be during the afternoon and early evening hours.
The risk for heavy thunderstorms will continue to shift farther to the east over the Great Lakes and farther to the north in parts of the Northeast during Tuesday night and Wednesday morning.
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"Moisture should start to surge northward in the mid-Atlantic states into Wednesday morning," stated AccuWeather Senior Meteorologist Carl Babinski. "This, combined with warmer air also moving northward, will lead to a couple of thunderstorms which can produce heavy rain in cities like Baltimore and Philadelphia," Babinski continued.
By Wednesday afternoon, heating of the day may help foster the development of severe thunderstorms, especially from the central Appalachians to the mid-Atlantic coast and part of western New England. Therefore, it is possible that cities such as Baltimore and Philadelphia have more than one round of thunderstorms on Wednesday. This scenario may also unfold as far north as New York City, with a single round of thunderstorms more probable in other locations.
The storms that erupt in portions of West Virginia, Pennsylvania, Delaware, Maryland, New York state, northern Virginia and the western parts of Massachusetts and Connecticut will have the potential to be severe with damaging winds, hail and perhaps a couple of isolated tornadoes.
Just under 60 million people are facing a slight risk of severe storms on Wednesday, according to the National Weather Service's Storm Prediction Center.
By Thursday, a cold front will move into the area, and a threat of thunderstorms will exist in some of the same areas as on Wednesday.
"Thursday, some of the storms in the Northeast and mid-Atlantic region could be severe, especially during the afternoon and evening, as a cold front pushes out of the north and west," Babinski said.
Once the front moves through, the week is likely to end on a quiet note.
Keep checking back on AccuWeather.com and stay tuned to the AccuWeather Network on DirecTV, Frontier and Verizon Fios.
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News / Severe Weather
Threat of drenching storms to shift from Midwest to Northeast
By Ryan Adamson, AccuWeather meteorologist
Published Jul 21, 2020 10:22 AM EST
AccuWeather's Dexter Henry looks at how the Port Authority of NY & NJ relies on technology to keep an eye on the quality of their infrastructure.
After a smattering of severe weather reports in the High Plains on Monday, forecasters say the threat for storms will move a bit farther to the east into Tuesday night, targeting parts of the Midwest, before bringing the risk of violent storms in the parts of the eastern United States at midweek.
The storms on Monday produced a sizable area of high winds, large hail and even a few tornadoes, especially in western South Dakota and western Nebraska. However, the risk for severe weather may be a bit lower there and in other locations across the country into Tuesday night. With that said, cities such as Des Moines, Iowa; Minneapolis, Chicago; and Indianapolis may all have heavy thunderstorms.
The main threat with any thunderstorms will be torrential downpours. Heavy rain that falls in a short period of time or multiple thunderstorms moving over the same area could cause ponding on roadways and even some to become completely covered with water. Motorists are urged to always find an alternate route if they encounter a flooded road.
Any storms that become heavy could also contain strong winds and hail as well. The most likely time for storms with those hazards would be during the afternoon and early evening hours.
The risk for heavy thunderstorms will continue to shift farther to the east over the Great Lakes and farther to the north in parts of the Northeast during Tuesday night and Wednesday morning.
CLICK HERE FOR THE FREE ACCUWEATHER APP
"Moisture should start to surge northward in the mid-Atlantic states into Wednesday morning," stated AccuWeather Senior Meteorologist Carl Babinski. "This, combined with warmer air also moving northward, will lead to a couple of thunderstorms which can produce heavy rain in cities like Baltimore and Philadelphia," Babinski continued.
By Wednesday afternoon, heating of the day may help foster the development of severe thunderstorms, especially from the central Appalachians to the mid-Atlantic coast and part of western New England. Therefore, it is possible that cities such as Baltimore and Philadelphia have more than one round of thunderstorms on Wednesday. This scenario may also unfold as far north as New York City, with a single round of thunderstorms more probable in other locations.
The storms that erupt in portions of West Virginia, Pennsylvania, Delaware, Maryland, New York state, northern Virginia and the western parts of Massachusetts and Connecticut will have the potential to be severe with damaging winds, hail and perhaps a couple of isolated tornadoes.
Just under 60 million people are facing a slight risk of severe storms on Wednesday, according to the National Weather Service's Storm Prediction Center.
By Thursday, a cold front will move into the area, and a threat of thunderstorms will exist in some of the same areas as on Wednesday.
Related:
"Thursday, some of the storms in the Northeast and mid-Atlantic region could be severe, especially during the afternoon and evening, as a cold front pushes out of the north and west," Babinski said.
Once the front moves through, the week is likely to end on a quiet note.
Keep checking back on AccuWeather.com and stay tuned to the AccuWeather Network on DirecTV, Frontier and Verizon Fios.
Report a Typo