GBP/USD is challenging the key resistance area between 1.5137 (09/03/2015 high) and 1.5166 (see also the declining trendline). Hourly supports can be found at 1.5028 (24/04/2015 low) and 1.4960 (23/04/2015 low).
In the longer-term, the break of the strong support at 1.4814 opens the way for further medium-term weakness towards the strong support at 1.4231 (20/05/2010 low). A decisive break of the key resistance at 1.5166 (18/03/2015 high) is needed to invalidate this scenario. Another key resistance stands at 1.5552 (26/02/2015 high).