UPDATE — Thursday, November 12, 1:01 PM CT: At 2:01 PM EST, the storm was near Arden, just outside Wilmington, moving northeast at 15 miles per hour. Trained weather spotters have reported quarter-size hail across northern New Castle County in Delaware. The warning still carries 60 mile per hour wind gusts and quarter-size hail through 2:15 PM EST.

UPDATE — Thursday, November 12, 1:37 PM EST: The storm is now over Penns Grove, near Wilmington, moving east at 20 mph with 60 mph wind gusts and quarter-size hail. A Tornado Watch remains in effect until 7:00 PM EST for northern Delaware, southern New Jersey, and southeastern Pennsylvania.

New Castle County, Delaware — A severe thunderstorm is moving east across the Delaware Valley this afternoon, and the National Weather Service in Mount Holly, New Jersey has issued a Severe Thunderstorm Warning until 2:15 PM EST for northern New Castle County in Delaware, northern Salem County and northwestern Gloucester County in New Jersey, and southeastern Delaware County in Pennsylvania.

What is happening:

At 1:11 PM EST, the storm was over Stanton, near Newark, moving east at 20 miles per hour. The warning covers Wilmington, Newark, Chester, Pennsville, Carneys Point, Folcroft, Elsmere, Paulsboro, New Castle, Penns Grove, Woodstown, Swedesboro, Newport, Arden, Stanton, Talleyville, Greenville, Chester Township, Mullica Hill, and Gibbstown. It also covers the New Jersey Turnpike between exits 1 and 2, Interstate 95 in Pennsylvania between mile markers 0 and 10, Interstate 95 in Delaware between mile markers 3 and 23, Interstate 295 in New Jersey between mile markers 0 and 18, and Interstate 476 in Pennsylvania near mile marker 0.

Local impacts:

The storm is carrying 60 mile per hour wind gusts and quarter-size hail. Minor damage to vehicles is possible, and wind damage to roofs, siding, trees, and power lines is possible. A Tornado Watch remains in effect until 7:00 PM EST for northern Delaware, southern New Jersey, and southeastern Pennsylvania, and tornadoes can develop quickly from severe thunderstorms like this one.

What to do:

Move to an interior room on the lowest floor of a building. Move indoors immediately. Frequent cloud to ground lightning is occurring with this storm, and if you can hear thunder, you are close enough to be struck. If you spot a tornado, go at once into a basement or a small central room in a sturdy structure.

Source: National Weather Service, Mount Holly, NJ, November 12, 2026.