WSNT04 KKCI 020830 SIGA0D KZWY SIGMET DELTA 1 VALID 020830/021230 KKCI- NEW YORK OCEANIC FIR FRQ TS OBS AT 0830Z WI N4015 W05700 - N3845 W05545 - N3615 W06100 - N3830 W06230 - N4015 W05700. TOP FL400. MOV ENE 30KT. NC.