WSHO31 MHTG 191505 MHTG SIGMET B5 VALID 191505/191905 MHTG- MHCC CENTRAL AMERICAN FIR EMBD TS OBS AT 1500Z WI N1003 W10419 - N1156 W09834 - N0841 W09804 - N0738 W10056 TOP FL500 MOV SW 05KT NC=