Yesterday's rally to 90.79 in line with the greenback's rise across the board signals the erratic upmove from 87.10 low has resumed and above said resistance would extend gain to 91.00/10, however, anticipated overbought readings on hourly oscillators should limit upside and yield a retreat later.  
On the downside, below 89.45/50 would indicate a temporary top has been formed instead and bring pullback towards yesterday's low at 88.88.