The GBPUSD broke through ascending trend line that had contained the pair over the last three months on Tuesday and never looked back.  The ascending trend line now turns from support to resistance in the short-term at 1.6015.  Daily price resistance rest at 1.60.  Creating a strong resistance zone between 1.60/6015.  Support begins at 1.5900 followed by 1.58.  Any move up toward the 1.60/15 resistance could find willing sellers.

Sup   1.60/6015

Res   1.59              1.58