WSNT13 KKCI 280330 SIGA0M KZHU SIGMET MIKE 6 VALID 280330/280730 KKCI- HOUSTON OCEANIC FIR EMBD TS OBS AT 0330Z WI N2817 W09359 - N2655 W09025 - N2430 W09056 - N2430 W09301 - N2559 W09555 - N2733 W09507 - N2817 W09359. TOP FL470. MOV W 5KT. NC.