Meteorologists need a 3D thumbprint of temperature, wind and moisture to determine when severe weather is imminent.

FirstEnergy reported more than 100 power outages caused by metallic balloons on Valentine's Day 2024. FirstEnergy urges the public to avoid using metallic balloons near power lines and to deflate ...

Twice a day — at 8 a.m. and 8 p.m. ET — meteorologists simultaneously launch the balloons, which are equipped with instruments called radiosondes that measure temperature, humidity and wind speed.