NEW JERSEY — Multiple rounds of severe storms are set to slam New Jersey Thursday, complete with damaging winds, heavy rain and hail, forecasters said.

The first round will be an “organized cluster” impacting regions along and northwest of I-95 through about noon as daytime high temperatures reach near 80 degrees, the National Weather Service said. The second round (composed of scattered storms) will hit the state this afternoon and evening, this time impacting areas mostly along and southeast of I-95.

Gusty winds up to 65 mph and hail will be possible during severe storms, the weather service said. The entire state is under a “marginal” risk for severe storms, according to graphics provided by the weather service.

Isolated tornadoes and flooding aren’t off the table for the hardest-hit regions, AccuWeather added, noting evening commuters should prepare for delays and disruptions.

As of 9:15 a.m., 11 New Jersey counties are under a severe thunderstorm warning through 9:45 a.m.

The effected counties are:

• Hunterdon
• Morris
• Sussex
• Warren
• Somerset
• Middlesex
• Passaic
• Union
• Bergen
• Essex
• Hudson

“60 mph wind gusts and penny size hail,” the National Weather Service said of the warning. “Damage to roofs, siding, trees, and power lines is possible.”

Additional showers and perhaps thunder will be possible — especially in South Jersey — late Friday into Saturday, the National Weather Service added.

Here’s the latest forecast, according to the National Weather Service:

North Jersey

Thursday: Showers and thunderstorms likely, mainly before 11 a.m. Mostly cloudy, with a high near 78. West wind around 5 mph. Chance of precipitation is 70 percent. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: A slight chance of showers and thunderstorms before 11 p.m., then a slight chance of showers after 5 a.m. Partly cloudy, with a low around 60. West wind around 5 mph becoming north after midnight. Chance of precipitation is 20 percent.

Friday: Sunny, with a high near 80. West wind around 5 mph.

Friday Night: Mostly clear, with a low around 56. West wind around 5 mph becoming calm.

Saturday: A slight chance of showers between 2 and 5 p.m., then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20 percent.

Saturday Night: A chance of showers and thunderstorms before 11 p.m., then a chance of showers between 11 p.m. and 2 a.m. Patchy fog after 5 a.m. Otherwise, mostly cloudy, with a low around 59. Chance of precipitation is 30 percent. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Central Jersey

Thursday: Showers and thunderstorms likely, mainly before 2 p.m. Mostly cloudy, with a high near 84. Southwest wind 5 to 10 mph. Chance of precipitation is 60 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A chance of showers and thunderstorms, mainly after 8 p.m. Mostly cloudy, with a low around 64. Southwest wind around 5 mph. Chance of precipitation is 30 percent. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday: A slight chance of showers before 11 a.m. Mostly cloudy, then gradually becoming sunny, with a high near 84. North wind around 5 mph becoming west in the afternoon. Chance of precipitation is 20 percent.

Friday Night: Mostly clear, with a low around 60. West wind around 5 mph becoming calm in the evening.

Saturday: A slight chance of showers after 2 p.m. Partly sunny, with a high near 82. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 20 percent.

Saturday Night: A chance of showers and thunderstorms before 11 p.m., then a chance of showers between 11 p.m. and 2 a.m., then a slight chance of showers and thunderstorms after 2 a.m. Patchy fog after 4 a.m. Otherwise, mostly cloudy, with a low around 61. Chance of precipitation is 30 percent. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

South Jersey

Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Southwest wind 5 to 10 mph. Chance of precipitation is 50 percent. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South wind around 5 mph becoming calm. Chance of precipitation is 40 percent. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday: A chance of showers, mainly before 11 a.m. Mostly cloudy, then gradually becoming sunny, with a high near 83. Northwest wind around 5 mph. Chance of precipitation is 30 percent. New precipitation amounts of less than a tenth of an inch possible.

Friday Night: Patchy fog after 2 a.m. Otherwise, partly cloudy, with a low around 59. Southwest wind around 5 mph becoming calm.

Saturday: A chance of showers, mainly after 5 p.m. Partly sunny, with a high near 79. Light east wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 30 percent. New
precipitation amounts of less than a tenth of an inch possible.

Saturday Night: A chance of showers and thunderstorms before 11 p.m., then a slight chance of showers between 11 p.m. and 2 a.m. Patchy fog after 2 a.m. Otherwise, mostly cloudy, with a low around 60. Chance of precipitation is 30 percent. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.