Red Auroras Reported as Far South as Central California

Spaceweather News

Sky watchers are reporting red auroras as far south as central California (geomagnetic latitude 43 degrees). If it is dark where you live --even if you live too far south for most Northern Lights-- go outdoors. A sky show might be waiting for you!

Shock Wave: An interplanetary shock wave passed NASA's ACE spacecraft at 0025 UT on March 31st and struck Earth's magnetosphere about 30 minutes later. The leading edge of the shock front was dense (~150 protons/cc) and strongly magnetized -- traits that can give rise to powerful geomagnetic disturbances.