$GBPUSD- Breakout Possibilities

The cross (currently @ 1.6318) has respected the uptrend but was unable to break though the channel top during the London session.  It is now flirting with the bottom of the trend line.  A breakdown targets the 1.6250 support and then the S4 target @ 1.6194. If we break to the upside look for the 1.6386 Resistance and a move to the top @ 1.6427.