Public Tropical Cyclone Advisory
107 WTPA32 PHFO 240542 TCPCP2 BULLETIN Tropical Storm Nolo Intermediate Advisory Number 14A NWS Central Pacific Hurricane Center Honolulu HI EP152026 Issued by NWS National Hurricane Center Miami FL 800 PM HST Wed Sep 23 2026 ...TROPICAL STORM NOLO HOLDING STEADY AND IS EXPECTED TO TURN NORTHWARD OVERNIGHT... ...HURRICANE WATCH REMAINS IN EFFECT FOR HAWAII COUNTY... SUMMARY OF 800 PM HST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...14.7N 155.9W ABOUT 295 MI...480 KM S OF SOUTH POINT HAWAII ABOUT 475 MI...765 KM SSE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * Hawaii County A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Interests elsewhere in the Hawaiian Islands should closely monitor the progress of this system. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 800 PM HST (0600 UTC), the center of Tropical Storm Nolo was located near latitude 14.7 North, longitude 155.9 West. Nolo is moving toward the west-northwest near 7 mph (11 km/h). A sharp turn to the north and north-northeast is expected late tonight through Thursday, with this motion continuing through the end of the week. On the forecast track, the system is expected to approach the Big Island of Hawaii on Friday and Saturday. Maximum sustained winds are near 45 mph (75 km/h) with higher gusts. Nolo is forecast to become a hurricane by Thursday night and could become a major hurricane by the weekend. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Nolo can be found in the can be found in the Tropical Cyclone Discussion under AWIPS header HFOTCDCP2 and WMO header WTPA42 PHFO. WIND: Hurricane conditions are possible in the watch area starting as early as Friday night. RAINFALL: Tropical Storm Nolo will produce rainfall totals of 15 to 20 inches across the Big Island with maximum amounts of 35 inches. This rainfall may produce catastrophic life-threatening flooding and mudslides, especially in areas of steep terrain. Rainfall totals of 5 to 10 inches with maximum amounts of 20 inches are expected across Maui. Life-threatening flooding and mudslides possible across Maui, especially in areas of high terrain. Across the remainder of the Hawaiian Islands, rainfall totals of 1 to 3 inches with maximum amounts of 6 inches are expected with isolated flooding possible. For a complete depiction of forecast rainfall associated with Tropical Storm Nolo, please see the National Weather Service Storm Total Rainfall Graphic available at hurricanes.gov/graphics_cp2.shtml?rainqpf STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Hawaii County...1 to 3 ft The deepest water will occur along the immediate coast near and to the right of the landfall location, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. For a complete depiction of areas at risk of storm surge inundation, please see the National Weather Service Peak Storm Surge Graphic, available at hurricanes.gov/graphics_cp2.shtml?peakSurge. SURF: Swells generated by Nolo are expected to reach exposed east and south-facing shores of the Big Island by Friday, spreading westward and building through the weekend. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1100 PM HST.