With the unusually cold weather and freezes in the area many palms can be damaged or even killed by these cold temperatures.
Some popular palms such as Adonidia merrillii (Christmas palm), Roystonia regina (royal palm), Ptychosperma elegans (Alexander palm), Hyophorbe lagenicaulis (bottle palm), Hyophorbe verschaffeltii (spindle palm), and Cocos nucifera (coconut palm) can be damaged and some even killed by cold temperatures.
You can find out about your particular palm and its tolerance to cold by calling (727-582-2110) or visiting the UF/IFAS Pinellas County Extension Service, 12520 Ulmerton Road, Largo. Betrock's "Landscape Palms" by Alan Meerow is also an excellent source of information.
Treating cold-damaged palms may be necessary to keep them from getting bud rot. To learn more see this UF/IFAS publication: http://edis.ifas.ufl.edu/mg318