WSHO31 MHTG 081250 MHTG SIGMET F4 VALID 081250/081650 MHTG- MHCC CENTRAL AMERICAN FIR EMBD TS OBS AT 1240Z WI N0743 W09951 - N1146 W09847 - N1045 W08624 - N0749 W08436 - N0549 W08602 TOP FL500 MOV W 05KT NC=