WSCA31 MHTG 242125 MHTG SIGMET A6 VALID 242125/250125 MHTG- MHCC CENTRAL AMERICAN FIR EMBD TS OBS AT 2120Z WI N0859 W08642 - N0419 W08307 - N0132 W08601 - N0659 W09205 TOP FL500 MOV SW 05KT NC=