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Threat for isolated thunderstorms return for this evening

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We rinse and repeat the weather pattern once again as a tropical air mass returns just in time to start the week and will be replaced by a cooler, drier Polar air mass in time for next weekend. With the return of the tropical air mass, isolated to scattered showers and thunderstorms will become a threat in the afternoons and evenings through much of this week.

Today, high pressure well to the east of the New Jersey coast will produce scattered clouds and a southwesterly winds at 5 to 10 mph, increasing to 10 to 15 mph by this evening. Most locations will remain dry through this evening however an isolated thunderstorm will be possible of portions of northern New Jersey this evening. The thunderstorms will be capable of wind gusts over 40 mph, frequent lightning, and heavy downpours.

Tonight, aside from an isolated thunderstorm in the evening over northern New Jersey, scattered cloud cover can be expected today. With the increasing humidity, areas of fog are possible in the morning hours and may reduce visibility to below 2 miles in some locations. Winds will be from the southwest at 5 to 15 mph. Temperatures will fall into the lower to mid 70's for lows.

Tomorrow on through Thursday; hazy, hot, and humid weather will be in place throughout New Jersey with a threat for widely scattered to scattered showers and thunderstorms, primarily in the afternoon and evening hours. The strongest thunderstorms will feature wind gusts over 60 mph, frequent lightning, hail, and very heavy downpours. Localized flash flooding, poor visibility, and wind damage will be concerns with these thunderstorms. A series of cold fronts will move through the region, the strongest being on Thursday evening. Winds will be from the southwest at 10 to 20 mph through the period. Low temperatures will range from the lower to mid 70's. High temperatures will range from the mid 80's along the coast and upper 80's to lower 90's over the Delaware River Valley. The heat index will range from the mid 90's to mid 100's through the period.

High pressure will take hold by Friday and remain in place for Saturday and Sunday. Scattered clouds can be expected as a result with low humidity taking hold. Low temperatures will range from the upper 50's to lower 60's over the interior and lower to mid 60's along the coast and in urban areas. High temperatures will range from the lower to mid 80's.