WCNT05 KKCI 091515 KZMA KZHU SIGMET ECHO 2 VALID 091515/092115 KKCI- MIAMI OCEANIC FIR HOUSTON OCEANIC FIR TC MILTON OBS AT 0915Z NR N2548 W08418. MOV NE 15KT. WKN. FRQ TS TOP ABV FL520 WI N2815 W08445 - N2400 W08300 - N2415 W08545 - N2645 W08615 - N2815 W08445. FCST 1515Z TC CENTER N2636 W08326.