The VIX may spike April 17-19 possibly because of worries about Korea.
In three out of the last four times the Daily RSI on the VIX has gone above 70% its been a good time to go long US stocks. In the Brexit "crisis" there was a RSI divergence.
The declining trend-line may also prove to be a guide to catching a VIX spike top.
If the SPX declines into the April 17-19 time zone, Fibonacci support is at 2280-2300 which was my original Minor wave "4" target.