Sky Spiders:
They started late yesterday afternoon and this morning... well let's just say that it is almost covered and DRIPPING.. not one cloud is Natural!!
So with all the bulging and heating of the ionosphere and crazy Jet Stream directions, they will be directing you guys, so batten down the hatches.
Currently covers mid and lower Calif.
Jet Stream: http://virga.sfsu.edu/crws/jetstream.html