000 FKNT21 KNHC 201450 TCANT1 TROPICAL STORM ALBERTO ICAO ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL012012 1500 UTC SUN MAY 20 2012 TC ADVISORY DTG: 20120520/1500Z TCAC: KNHC TC: ALBERTO NR: 004 PSN: N3130 W07942 MOV: WSW 05KT C: 1000HPA MAX WIND: 040KT FCST PSN + 06 HR: 202100 N3118 W07942 FCST MAX WIND + 06 HR: 035KT FCST PSN + 12 HR: 210300 N3115 W07932 FCST MAX WIND + 12 HR: 035KT FCST PSN + 18 HR: 210900 N3121 W07915 FCST MAX WIND + 18 HR: 035KT FCST PSN + 24 HR: 211500 N3137 W07843 FCST MAX WIND + 24 HR: 035KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20120520/2100Z ..