Severe Weather Warnings Issued For Parts Of NJ, Flood Watch For All

All 21 New Jersey counties will be under a Flood Watch Thursday as severe storms will drench the state and widespread flash flooding is expected, according to the latest forecast.

Wednesday will be another incredibly hot and humid day for the Garden State, with temperatures feeling like up to 105 degrees, according to the National Weather Service. Most of the state remains under a Heat Advisory until 8 p.m.

Then, from 2 p.m. to 9 p.m., isolated severe thunderstorms are possible in North Jersey, forecasters said.

A Severe Thunderstorm Warning is in place until 5:30 p.m. in southwestern Sussex and northeastern Warren counties.

With Wednesday's storms, AccuWeather forecasters predict damaging wind gusts between 55 and 65 mph, along with possible flash flooding.

Storms and showers will become widespread Thursday afternoon into the evening, according to the National Weather Service.

Rainfall amounts of 2 to 4 inches are possible, National Weather Service forecasters said, with 6 inches or more possible in some areas. Forecasters anticipate widespread flash flooding.

“Ingredients will come together on Thursday that will lead to a flash flood threat, especially for areas across eastern Pennsylvania into New Jersey. Two to four inches of rainfall is forecast across the region, with rainfall rates that can exceed one inch per hour,” AccuWeather Senior Meteorologist Scott Homan said.

A Flood Watch was issued for Thursday afternoon through late Thursday night statewide. Flash flood warnings could occur, and the National Weather Service urges residents to have a way to receive any potential warnings.

As the evening goes on, storms will begin to subside.

"The heaviest of the showers and thunderstorms will begin to taper off after midnight from west to east, but lingering showers and thunderstorms will be possible," the National Weather Service said. "Any extensive flooding that does develop may not subside until sometime Friday."

Thursday won't be as hot as the days prior, though humidity will still be strong.

The silver lining is that this will usher in a cooler period. Friday will be breezy with some showers and drizzles. Highs will be in the low-to-mid 70s, according to the National Weather Service. Then, dry air will move in.

"The hot, humid, and stormy weather will fortunately by followed by very pleasant and dry conditions over the weekend and into early next week," National Weather Service forecasters said.

Here's the latest forecast.

North Jersey

Wednesday: A slight chance of showers and thunderstorms after 1 p.m. Mostly sunny, with a high near 96. Heat index values as high as 100. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20 percent.

Wednesday Night: A slight chance of showers and thunderstorms before 1 a.m., then a slight chance of showers and thunderstorms after 3 a.m. Partly cloudy, with a low around 72. Calm wind becoming north around 5 mph. Chance of precipitation is 20 percent.

Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2 p.m. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 81. Northeast wind around 5 mph. Chance of precipitation is 70 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 62. Northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80 percent. New rainfall amounts between three quarters and one inch possible.

Friday: Showers and possibly a thunderstorm, mainly before 2 p.m., then a chance of showers and thunderstorms after 2 p.m. High near 68. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80 percent. New rainfall amounts between a quarter and half of an inch possible.

Friday Night: A chance of showers, mainly before 8 p.m. Partly cloudy, with a low around 57. Chance of precipitation is 30 percent. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Sunny, with a high near 78.

Saturday Night: Mostly clear, with a low around 57.

Sunday: Sunny, with a high near 82.

Central Jersey

Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the afternoon.

Wednesday Night: Mostly clear, with a low around 73. Southwest wind around 5 mph becoming calm.

Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2 p.m. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 86. East wind 5 to 10 mph. Chance of precipitation is 70 percent. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 65. Northeast wind 5 to 10 mph. Chance of precipitation is 80 percent. New rainfall amounts between three quarters and one inch possible.

Friday: Showers and possibly a thunderstorm. High near 71. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80 percent. New rainfall amounts between a quarter and half of an inch possible.

Friday Night: A chance of showers before 2 a.m. Mostly cloudy, with a low around 58. Chance of precipitation is 30 percent. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday: Sunny, with a high near 79.

Saturday Night: Mostly clear, with a low around 57.

Sunday: Sunny, with a high near 82.

South Jersey

Wednesday: Sunny, with a high near 96. Heat index values as high as 104. Calm wind becoming southwest around 5 mph in the afternoon.

Wednesday Night: Mostly clear, with a low around 73. South wind around 5 mph becoming calm in the evening.

Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2 p.m. Increasing clouds, with a high near 91. South wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 50 percent. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8 p.m. Some of the storms could produce heavy rainfall. Low around 69. East wind around 5 mph. Chance of precipitation is 80 percent. New rainfall amounts between a half and three quarters of an inch possible.

Friday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 75. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80 percent. New rainfall amounts between three quarters and one inch possible.

Friday Night: Showers and thunderstorms likely before 11 p.m., then a chance of showers between 11 p.m. and 2 a.m. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 61. Chance of precipitation is 60 percent. New precipitation amounts between a quarter and half of an inch possible.

Saturday: Sunny, with a high near 80.

Saturday Night: Mostly clear, with a low around 58.

Sunday: Sunny, with a high near 82.