Flash Flood Risk Rises Across Northeast Corridor With More Heavy Rain Coming

By Joe Lombardi From Daily Voice

After days of record-challenging heat, the Northeast is bracing for a dramatic weather shift as rounds of heavy rain threaten to unleash dangerous flash flooding across major cities and travel corridors.

A surge of soaking rainfall is set to sweep across the Northeast Thursday, July 31, and Friday, raising the risk of flash flooding from Philadelphia and New York City to communities west of Boston. During that time, scattered thunderstorms are also possible.

AccuWeather meteorologists warn that 2 to 4 inches of rain could fall across the region, with localized totals potentially reaching up to 8 inches in persistent downpours.

“Heavy rainfall can lead to flash flooding in a matter of minutes, especially in areas with hilly terrain, creeks, streams and other flood-prone spots," AccuWeather Chief Meteorologist Jonathan Porter warned. "Drivers should never attempt to go down a flooded road, even if the water appears to be only a few inches deep. 

"It’s impossible to know how deep the water is, how fast it is moving or if the road or bridge underneath has been compromised or washed out. Most flash flooding fatalities involve vehicles and are preventable. Do not put yourself, your passengers, bystanders and emergency responders at risk.

“It is important that everyone take flash flood watches and warnings seriously, especially after dark. Make sure you have multiple ways to receive flash flood warnings."

There will be frequent downpours at times Thursday, July 31, into Friday, Aug. 1.

AccuWeather

The heaviest rain is expected along the I-95 corridor, with impacts stretching into the I-80 and I-81 corridors. 

Thunderstorms could also extend as far south as Washington, DC, and the Carolinas, compounding the risk of sudden flooding in low-lying and urban areas. 

Commuters should prepare for reduced visibility and possible travel disruptions during the Thursday and Friday morning and evening rush hours, while major airports may experience delays.

Relief is on the horizon, however, as a surge of cooler, less humid air is forecast to sweep into the Northeast and Great Lakes region starting on Thursday, ending the stretch of oppressive summer heat. 

There will be a dramatic change in conditions on Thursday, July 31, as the passage of the frontal system ushers in more comfortable air. 

AccuWeather

Low temperatures this weekend will range from the 60’s in some cities along the I-95 corridor to the 40s in the mountains. A few spots may even dip into the 30s over the coolest mountain spots over the weekend.

Until then, residents are urged to stay alert for flash flood warnings and take precautions in flood-prone areas.

Check back to Daily Voice for updates.