1.   The instability will be enhanced by daytime heating and mountain influences later today to generate widely scattered to scattered showers and isolated afternoon thunderstorms.

2.   The local airmass remains unstable ... During the afternoon this airmass will combine with daytime heating and mountain influences to generate scattered showers and isolated thunderstorms.

3.   They will combine with an already unstable local airmass...Daytime heating and mountain influences to ignite scattered to numerous showers and widely scattered thunderstorms over the local islands.

4.   This air mass may be aided later today by daytime heating and mountain influences to provoke scattered showers and isolated thunderstorms ... Especially across western Puerto Rico.