WCCA31 MKJP 052130 MKJK SIGMET 4 VALID 052130/060330 MKJP- MKJK KINGSTON FIR TC RAFAEL OBS AT 2100Z N1906 W07936 CB TOP ABV FL500 WI 90NM OF CENTRE MOV NW 13KT INTSF FCST 0600Z TC CENTRE N2030 W08042=