WSNT13 KKCI 271850 SIGA0M KZWY SIGMET MIKE 4 VALID 271850/272250 KKCI- NEW YORK OCEANIC FIR FRQ TS OBS AT 1850Z WI N3745 W06830 - N3745 W06215 - N2800 W07615 - N3000 W07700 - N3215 W07700 - N3745 W06830. TOP FL450. STNR. NC.