Meteorologists watching for heavy thunderstorms on Friday

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Meteorologists are watching Friday’s approach of a slow-moving cold front and how it combines with a tropical air mass over the Middle Atlantic States. The combination could fuel potentially severe thunderstorms with heavy rain, according to the National Weather Service. Meteorologists are watching Friday’s approach of a slow-moving cold front and how it combines with a tropical air mass over the Middle Atlantic States. The combination could fuel potentially severe thunderstorms with heavy rain, according to the National Weather Service. Meteorologists are watching Friday’s approach of a slow-moving cold front and how it combines with a tropical air mass over the Middle Atlantic States. The combination could fuel potentially severe thunderstorms with heavy rain, according to the National Weather Service.

“After a couple of days of widespread severe thunderstorms with numerous reports of wind damage, large hail and even a few tornadoes, the primary weather focus for today into Friday will shift to the threat for heavy rains and potential flooding,” reports the National Weather Service.

“A plume of tropical moisture has surged northward from the Caribbean up the eastern seaboard ahead of a slow moving frontal system,” the report continued. “The extremely moist air mass will bring the potential for very heavy downpours and localized flash flooding, especially across the mid-Atlantic into the Northeast.

As of Thursday afternoon, the immediate coastal portions of South Jersey had escaped training thunderstorms that have dropped several inches of rain this week over portions of Delaware and eastern Pennsylvania.

As of Thursday afternoon, about 2.9 inches of rain had fallen at Wilmington, Del., during the past three days. About 2.75 inches of rain had fallen during the same time period at the Philadelphia InternationalAirport.

Showers are working north through South Jersey during the early afternoon hours of Thursday, June 12./NWS Showers are working north through South Jersey during the early afternoon hours of Thursday, June 12./NWS A new batch of showers was working its way up the I-95 corridor during the early afternoon hours on Thursday, June 12.

In contrast, only .06 inches of rain had fallen at the Atlantic City International Airport and a quarter-inch of rain dropped at the MillvilleAirport, the Weather Service said.

“The greatest threat for flooding will be across areas that have also experienced heavy rains from storms over the last few days, where the soils are much wetter and more of the rain is likely to run off into streams, creeks and other low lying areas,” the National Weather Service said.

A flash flood watch remains in effect for much of eastern Pennsylvania, northern Maryland and Delaware, according to the National Weather Service Mount Holly Forecast Center.

Friday’s thunderstorms could produce rainfall rates of one inch per hour, the Weather Service said.

The National Weather Service also posted a hazardous weather outlook for South Jersey for the potential for thunderstorms and heavy rains on Friday afternoon and Friday evening.

The National Weather Service is forecasting thunderstorms during the day on Friday, June 13 and lasting through 2 a.m. Saturday, June 14   Friday’s high temperature should reach about 84 degrees.


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