The US Dollar Index is poised for a significant breakout which could lead to its largest rally since June of last year:

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USD_Daily_2.2.2014

A rally in "King Dollar" would also be consistent with a worsening of emerging markets turmoil and a global "risk-off" environment.

Bullish seasonality also lends credence to the possibility that February could be a very powerful month for the dollar:

USD_Seasonality