CLEVELAND (WJW) -- A strong geomagnetic storm could create a dazzling aurora in the skies above Northeast Ohio overnight Monday.

But northern lights tend to be unpredictable, so sky watchers should temper their expectations, said local astronomer Jay Reynolds.

A coronal mass ejection erupted from the sun on Saturday and it's expected to impact Earth on Monday through Monday night, said FOX 8 Meteorologist James Parish.

The National Oceanic and Atmospheric Administration on Sunday issued a strong geomagnetic storm watch for Tuesday -- a three on a five-tier scale.

If the storm is as strong as forecasted, an aurora could be visible as far from the North Pole as Pennsylvania, Iowa and Oregon, according to the administration.

Reynolds said he rarely tries to predict visible auroras, since

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