This dataset contains:

1. The model configuration files of three simulations conducted with the Advanced Research Weather Research and Forecasting (WRF) Model with 50, 25 and 12.5 km grid spacings. The domain is the North Atlantic and the period covered is 2008-09 to 2009-05.
2. The tracks of polar lows in each simulation.
3. Statistics of the characteristics of the polar low tracks and associated fields.