A cold front will slowly approach the state this weekend and likely stall by Sunday. As a result, those with beach and pool plans should prepare for possible interruption from a few thunderstorms both Saturday and Sunday afternoon.  Prior to the front's arrival Saturday, only a few spotty afternoon showers or thunderstorms will be possible, primarily along inland advancing sea breezes during the late afternoon hours.  Most of the state will be dry and very warm Thursday and Friday, with daytime highs reaching the lower 90's for much of central and south Florida.  Afternoon thunderstorm coverage will be increasing Saturday across north and central Florida Saturday, then good chances for afternoon storms will exist statewide Sunday.  The front will likely weaken or dissipate by Monday, allowing rain chances to return to their typical low values for this time of year.