 Although extrapolated peak maximum sustained winds based on whatever reports are available exist for every storm in 1860 , estimated minimum central barometric air pressure listings are only present for the three storms that made landfall in the United States . As the three landfalling storms moved inland , information on their meteorological dissipation was limited . As a result , the intensity of these storms after landfall and until dissipation is based on an inland decay model developed in 1995 to predict the deterioration of inland hurricanes . 
