Hurricane Iona Public Advisory Number 12
Issued at 500 PM HST Tue Jul 29 2025
729 WTPA31 PHFO 300245 TCPCP1 BULLETIN Hurricane Iona Advisory Number 12 NWS Central Pacific Hurricane Center Honolulu HI CP012025 Issued by NWS National Hurricane Center Miami FL 500 PM HST Tue Jul 29 2025 ...IONA BEGINS TO WEAKEN WELL TO THE SOUTH OF HAWAII... SUMMARY OF 500 PM HST...0300 UTC...INFORMATION ---------------------------------------------- LOCATION...11.0N 157.1W ABOUT 715 MI...1150 KM S OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...964 MB...28.47 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM HST (0300 UTC), the center of Hurricane Iona was located near latitude 11.0 North, longitude 157.1 West. Iona is moving toward the west near 17 mph (28 km/h). This general motion with some increase in forward speed is expected during the next couple of days. Maximum sustained winds are near 115 mph (185 km/h) with higher gusts. Iona is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Rapid weakening is expected tonight and Wednesday, followed by more gradual weakening Wednesday night and Thursday. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km). The estimated minimum central pressure is 964 mb (28.47 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 1100 PM HST. $$ Forecaster Jelsema (CPHC)
