The GBP/USD pair is approaching towards its resistance zone (mentioned below) on a 30 minute time frame. The price action is trading above the 50 day (shown in green) and the 100-Day (shown in yellow) moving averages which show that the bulls have taken the control. The volatility for the pair is high as the price is trading far from the 20-day MA and it has pierced the Bollinger band. The piercing of the Bollinger band does have a significant importance at an important level of support/resistance and it could reverse the trend or push the price back/up towards its mean.
The RSI is also trading inline with the price action which means that the upward move may continue.