Delaware, New Jersey, Pennsylvania Severe Severe Thunderstorm Warning | Effective 09/01/2026 17:20

Headline: 
Severe Thunderstorm Warning issued September 1 at 8:20PM EDT until September 1 at 9:15PM EDT by NWS Mount Holly NJ
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
September 1, 2026 - 5:20pm
Expires: 
September 1, 2026 - 6:15pm
Description: 
At 819 PM EDT, severe thunderstorms were located along a line extending from Talleyville to Hockessin to near Oxford, moving southeast at 35 mph. THESE ARE DESTRUCTIVE STORMS FOR southern Chester County and northern Delaware, including the Wilmington area. This storm is producing damaging winds across Chester County. HAZARD...80 mph wind gusts and quarter size hail. SOURCE...Emergency management. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be heavily damaged. Expect considerable damage to roofs, windows, and vehicles. Extensive tree damage and power outages are likely. Locations impacted include... Wilmington, Newark, Middletown, West Chester, Pennsville, Westtown, Carneys Point, Elsmere, Kennett Square, New Castle, Penns Grove, Salem, Oxford, Woodstown, Alloway, West Grove, Quinton, Swedesboro, Delaware City, and Elmer. This includes the following highways... New Jersey Turnpike near exit 1. Interstate 95 in Pennsylvania between mile markers 0 and 1. Interstate 95 in Delaware between mile markers 1 and 23. Interstate 295 in New Jersey between mile markers 0 and 10.
Instruction: 
This is a DANGEROUS SITUATION. These storms are producing widespread wind damage across Chester County. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. Frequent cloud to ground lightning is occurring with these storms. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Area Description: 
New Castle, DE; Cumberland, NJ; Gloucester, NJ; Salem, NJ; Chester, PA; Delaware, PA
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov