WSNT03 KKCI 020830 SIGA0C KZWY SIGMET CHARLIE 6 VALID 020830/021230 KKCI- NEW YORK OCEANIC FIR FRQ TS OBS AT 0830Z WI N4245 W06000 - N4115 W05900 - N3700 W06515 - N3800 W06630 - N4245 W06000. TOP FL350. MOV ENE 30KT. NC.