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The combination of the remnants of Hurricane Beryl and a passing frontal front is creating a double threat of severe weather for the Northeast, bringing with it a rare tornado threat and the possibility of significant flooding through at least Thursday morning.

Some heavy rain showers and thunderstorms have already reached the region, but the extent and intensity are likely to increase throughout the day on Wednesday.

As Beryl moved through the eastern United States, it was already a major tornado threat. On Monday, a total of 118 tornado warnings were issued, the highest number ever issued on a single day in July. On Tuesday, several tornadoes were spotted in the Ohio Valley. On Wednesday, the threat will move to the northeast.

Parts of central New York are facing tornado dangers at their highest in nearly 20 years as the remnants of Beryl move into an area prone to frequent wind shear and atmospheric instability Wednesday afternoon.

“That should get your attention,” said Craig Herrera, meteorologist at FOX Weather. “Watch for those supercells to form this afternoon. You'll want to make sure you have a safe place to go.”

The National Weather Service's Storm Prediction Center has since issued a tornado warning for parts of upstate New York, northern and central Pennsylvania, and Vermont until 9 p.m. ET. In addition to the tornado threat, there is the possibility of isolated destructive wind gusts up to 70 mph.

The combination of the remnants of Hurricane Beryl and a passing frontal zone poses a double threat of severe weather in the Northeast. FOX Weather

A severe weather warning is also in effect until 10 p.m. ET for parts of the District of Columbia, Maryland, southern Pennsylvania, Virginia and extreme eastern West Virginia.

“The greatest tornado threat is likely to be in an east-west corridor from southeast of Buffalo to west of Albany,” SPC meteorologists wrote Wednesday morning.

A severe weather warning is also in effect until 10:00 p.m. ET. Getty Images

The worst weather is expected from the afternoon into the evening.

Beryl brings heavy rains to areas devastated by the 2023 floods

There is a risk of heavy rain and flooding across much of the Northeast and New England.

“The energy is coming from the southwest. It reached the Ohio Valley overnight, moved through the Great Lakes and increased water depths during the afternoon… It could reach depths of two to three inches per hour,” said Steve Bender, meteorologist at FOX Weather.

The NOAA Weather Prediction Center has classified parts of New York, Vermont and New Hampshire as at least moderately at risk of flooding – a risk that could increase if thunderstorms move over the same area. The communities of Burlington and Montpelier in Vermont and Plattsburg in New York State are in the highest risk zone.

There is a risk of heavy rain and flooding across much of the Northeast and New England. REUTERS

The event is somewhat reminiscent of the flooding that hit the region about a year ago, when the NWS declared a flash flood emergency for the first time in the region's history.

Many Vermont communities received between 5 and 10 inches of rainfall, partly due to orographic uplift.

This meteorological phenomenon occurs when warm air is forced to rise over a mountain range, but in the process cools and condenses, resulting in the formation of clouds and precipitation that can be quite heavy and unpredictable.

Forecast models show that rainfall amounts of at least three inches are possible in some communities. Even higher amounts are possible, particularly in communities on the west side of the mountains.

Many Vermont communities received between 5 and 10 inches of rainfall, partly due to orographic uplift. FOX Weather

NWS meteorologists caution that the event is not expected to be as large as the 2023 disaster. However, all residents of flood-prone areas should be prepared to seek higher ground.

Due to the threat, flood warnings have been issued in four states until at least Thursday morning.

The threat of widespread heavy rain and storms is expected to be over by Thursday as most of the storm system's energy has moved out of the region.

Damage reported in western New York State

Damage to homes and trees was reported in western New York State as thunderstorms moved through the region from west to east.

Flood warnings have been issued in four states until at least Thursday morning. FOX Weather

New York State Troopers said they were assisting residents of Chautauqua and Erie counties in dealing with storm damage.

More than 10,000 power outages were reported in the immediate region, and in the northeast there were almost 50,000.

Erie County Executive Mark Poloncarz said the city of Eden has been declared a state of emergency due to widespread damage.

“Several farms have suffered significant damage, with barns in particular being completely destroyed and animals injured. Fortunately, there are no reports of human injuries,” Poloncarz posted on social media.

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