Death from above, radioactive rain is going to fall for years. But right now if you are under a cloud of smoke in europe or Russia just evacuate NOW!
Why?
Forest fires are burning in the radioactive forests surrounding the plants and factories of old Russia. The smoke is carrying microscopic ceramic particles that are radioactive and will remain so for a very long time. Immediately this is a huge issue for Russia, China, Europe, and Asia. But this may be a problem anywhere rain falls for many years to come.