Currently google maps detours off 199 at Patrick Creek, taking a forest service road across the state border. I think there's a another thread about some fire closures here.
As far as Patrick Creek 199 is easy, following a broad river valley. Beyond there it, when open, the canyon becomes narrower, and the road curves more. Whether that's actually bad depends on your size and experience. 199 uses a tunnel to cross the top, so avoids the worst of climbs and curves.
A good alternative is go north to OR 42 doubles the miles, but with the current detour doesn't take too much longer. And no significan grades or difficult sections.
caltrans wrote:
In Del Norte County, State Route 199 has 1-way traffic control with pilot cars leading traffic from Patrick's Creek to Collier Tunnel - Due to a wildfire - Expect 1 hour delays.