000 WSNT05 KKCI 210830 SIGA0E KZHU SIGMET ECHO 1 VALID 210830/211230 KKCI- HOUSTON OCEANIC FIR FRQ TS OBS AT 0830Z WI N2830 W09200 - N2815 W08845 - N2700 W08915 - N2715 W09300 - N2830 W09200. TOP FL480. MOV E 35KT. INTSF.