Some minor geomagnetic storms are possible because of a cooler, less dense spot on the sun’s surface, forecasters said.

Attention aurora chasers! Powerful geomagnetic storm conditions could trigger northern lights at mid-latitudes tonight as a coronal mass ejection impact is imminent.

ALBANY — A large-scale geomagnetic storm was predicted to sweep across the Northern Hemisphere Monday night, but most New Yorkers had little hope of spotting the colorful waves of light known as aurora borealis, or northern lights.