Possibly due to less friction of the eyewall or moving over warm waters of the LOCATION@1 , PERSON@1 again re-intensified to reach winds of NUMBER@1 mph -LRB- NUMBER@2 km/h -RRB- before cold air and wind shear penetrated the inner core of convection .

The hurricane again re-intensified before cold air and wind shear penetrated the inner core of convection .
