National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

On a hot, sunny day, temperatures inside a vehicle can become deadly quickly.

Here is an experiment we did at the National Weather Service on a mostly sunny day with a temperature probe in a parked van with the windows closed up. The air temperature was 94 F when the experiment began at 2:09 PM.

You can see that the temperture exceeds 100 F by 2:15 PM, 110 F by 2:28, and 115 F by 2:37 PM. Had this been a car with a smaller volume, the rise would have been even quicker.

 

The National Weather Service reminds everybody to never leave a child or animal in a closed vehicle on a sunny day. The results can become tragic quickly.