The USD/JPY is moving in an upward direction on a 30 minute time frame as predicted. However, the price has pierced the upward trend line twice yesterday but it is trading once again above this line. This represents the weakness for the uptrend but the bulls are still strictly in control of price. The price is trading above the 50 day (shown in green) and the 100 day (shown in yellow) moving averages which confirms the above argument.
The RSI is also trading in line with the price action which means that the bias could be to the downside.