 This was most notable in the GFS model incorrectly predicting Hurricane Sandy turning out to sea until 4 days before landfall, while the European Centre for Medium-Range Weather Forecasts' model predicted landfall correctly at 7 days.Much of this was suggested to be due to limits in computational resources within the National Weather Service.In response, the NWS purchased new supercomputers, increasing processing power from 776 teraflops to 5.78 petaflops.