Auroras may be visible from Alaska to Illinois tonight and over the weekend as several coronal mass ejections and fast solar wind impact Earth. (Image credit: Map: NOAA Space Weather Prediction Center, background: Daisy Dobrijevic. Graphic created in Canva Pro.) Heads up aurora chasers! Several coronal mass ejections (CMEs) are currently impacting Earth, with more expected to arrive through the weekend (March 20-22). Geomagnetic activity is likely to ramp up over the next couple of days as a series of CME impacts combine with a high-speed solar wind stream from a coronal hole. This one-two punch could trigger minor to moderate (G1 to G2) geomagnetic storms tonight, with a chance of stronger (G3) conditions on March 21, potentially pushing the northern lights farther south than usual, according to NOAA's Space Weather Prediction Center . Meanwhile, NOAA Space Weather Prediction Center has issued a moderate (G2) geomagnetic storm watch for March 20-21, with elevated activity expected to linger into March 22.…