For the first time since, 2005, NOAA has issued a G4 (severe) geomagnetic storm watch over the northern half of the U.S.

The storm could even bring aurora borealis, or northern lights, to East Tennessee skies.

G4 storms are the second-strongest type of geomagnetic storm. According to NOAA they can ““trip out key assets from the grid,” meaning possible widespread voltage problems.

National Weather Service are hoping we’ll get to see this and say the possibility of lights comes Saturday night.

As for Saturday’s weather, the skies in East Tennessee look clear.

For best viewing, get away from man-made lights.