G3 Warning into Wednesday Evening, 3 December

An anticipated coronal hole high speed stream (CH HSS) is having early related effects and a G3 Warning was issued into Wednesday evening (EST), 3 December. G3 levels were first reached at 3:31pm EST. CH HSS effects can change quickly, but often become weaker after initial, leading CH HSS effects wane. As always, stay informed at spaceweather.gov