Rain, heavy storms to slice through unusual warmth in northeastern US

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Rain and locally heavy thunderstorms will truncate the latest spell of warmth in the northeastern United States prior to the end of the week.

Following temperatures surging into the 60s, 70s and the 80s F from Wednesday to Thursday, a strong push of chilly air will sweep through by Friday.

The leading edge of the chilly air will be accompanied by clouds, showers and thunderstorms.

"A few of the thunderstorms can pack wind gusts in the neighborhood of 40-45 mph," according to AccuWeather Senior Meteorologist Dave Dombek.

Gusts in this range can send piles of leaves, trash cans and other unsecured, light-weight objects flying through neighborhoods.

"While a few locations can be hit with gusty winds during the thunderstorms, the most far-reaching impact will be heavy rain," Dombek said.

The downpours will bring the chance of brief, urban flooding and sudden, poor visibility for motorists. Travel delays are likely as this swath of downpours pushes eastward.

The wet weather will push from the Ohio Valley and lower Great Lakes and into the Appalachians on Thursday morning and toward the Interstate-95 corridor and the coast during Thursday afternoon and evening.

Where leaves have fallen, the combination of rain and downed leaves can block storm drains and make roads extra slippery.

"On a positive note, the rain will provide another shot in the arm for drought-stricken areas of the Northeast," Dombek said.

Substantial rain returned to the region during October, following long dry spells. While long-term drought recovery will be a slow process, there is the potential for additional rain events as November progresses. Despite the recent rainfall, many areas are still experiencing a deficit between 8 and 12 inches since the start of the year.

In the wake of the locally drenching rain by late on Thursday night and Friday, temperatures will be slashed by an average of 20 degrees Fahrenheit after peaking on Wednesday and Thursday. This will translate to highs in the upper 30s and lower 40s in the northern tier and over the highest elevations, to the 50s to near 60 in coastal areas of the mid-Atlantic on Friday.

A few sprinkles and wet snowflakes can occur in some parts of northern Pennsylvania to western and northern New York and northwestern New England on Thursday night into Friday.

"The chill coming in will be the greatest and last the longest in New England and northern upstate New York," according to AccuWeather Chief Meteorologist Elliot Abrams.

Temperatures in those northern areas will generally be 4-8 degrees below normal through the weekend and into Monday. A stiff wind will accompany the chill much of the time in New England.

Over the southern and western areas of the mid-Atlantic, temperatures will rebound slightly during the weekend. However, these areas will have a cool breeze at times.

The combination of wind, temperature and other atmospheric conditions will result in AccuWeather RealFeel® Temperatures that can be 10 degrees lower than the actual temperature.

By Election Day, temperatures are likely to settle back to seasonable levels over much of the Northeast.