 The uncertain nature of the storm prevented the NHC from issuing advisories on it, and forecasters lacked sufficient data to fully assess the cyclone for potential tropical characteristics.The same trough that pushed the storm across Florida had moved to the north, allowing for high pressure to develop in the upper levels of the atmosphere.Deemed a "hybrid storm", the cyclone rapidly intensified in warm waters of up to from the Gulf Stream combined with a cold air mass over the United States.