WSHO31 MHTG 061235 MHTG SIGMET B1 VALID 061235/061635 MHTG- MHCC CENTRAL AMERICAN FIR EMBD TS OBS AT 1230Z WI N0859 W09057 - N1158 W08921 - N1244 W08726 - N0823 W08318 - N0651 W08411 - N0834 W08752 - N0656 W08956 TOP FL520 MOV W 05KT INTSF=