008  
FKPA21 PHFO 010834  
TCAPA1  
 
TROPICAL STORM IONA ICAO ADVISORY NUMBER 21  
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI CP012025  
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL  
0900 UTC FRI AUG 01 2025  
 
TC ADVISORY  
DTG: 20250801/0900Z  
TCAC: PHFO  
TC: IONA  
ADVISORY NR: 2025/021  
OBS PSN: 01/0900Z N1412 W17424  
MOV: WNW 16KT  
INTST CHANGE: WKN  
C: 1003HPA  
MAX WIND: 040KT  
FCST PSN +3 HR: 01/1200Z N1424 W17509  
FCST MAX WIND +3 HR: 040KT  
FCST PSN +6 HR: 01/1500Z N1436 W17556  
FCST MAX WIND +6 HR: 040KT  
FCST PSN +9 HR: 01/1800Z N1448 W17642  
FCST MAX WIND +9 HR: 040KT  
FCST PSN +15 HR: 02/0000Z N1518 W17808  
FCST MAX WIND +15 HR: 040KT  
FCST PSN +21 HR: 02/0600Z N1548 W17936  
FCST MAX WIND +21 HR: 040KT  
FCST PSN +27 HR: 02/1200Z N1624 E17909  
FCST MAX WIND +27 HR: 040KT  
RMK: THE FORECAST POSITION INFORMATION IN  
THIS PRODUCT IS INTERPOLATED FROM  
OFFICIAL FORECAST DATA VALID AT 0000...  
0600...1200...AND 1800Z.  
NXT MSG: 20250801/1500Z  
 
 
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