Public Tropical Cyclone Advisory
997 WTPA34 PHFO 070240 TCPCP4 BULLETIN Hurricane Lowell Advisory Number 44 NWS Central Pacific Hurricane Center Honolulu HI EP122026 Issued by NWS National Hurricane Center Miami FL 500 PM HST Sun Sep 06 2026 ...HURRICANE WATCH ISSUED FOR KAUAI AND NIIHAU... SUMMARY OF 500 PM HST...0300 UTC...INFORMATION ---------------------------------------------- LOCATION...15.9N 163.5W ABOUT 500 MI...805 KM SSW OF LIHUE HAWAII ABOUT 525 MI...840 KM SW OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H PRESENT MOVEMENT...N OR 10 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...948 MB...28.00 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: A Hurricane Watch has been issued for Kauai County, including the islands of Kauai and Niihau. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * The Papahanaumokuakea Marine National Monument from Nihoa to French Frigate Shoals A Hurricane Watch is in effect for... * Kauai County, including the islands of Kauai and Niihau A Tropical Storm Warning is in effect for... * Kauai County, including the islands of Kauai and Niihau A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Hurricane Watch means that hurricane conditions are possible within the watch area. Interests elsewhere in the Hawaiian Islands and the Papahanaumokuakea Marine National Monument should monitor the progress of Lowell. 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 500 PM HST (0300 UTC), the eye of Hurricane Lowell was located near latitude 15.9 North, longitude 163.5 West. Lowell is moving toward the north near 9 mph (15 km/h). A northward to north-northeastward motion at a faster forward speed is forecasted through Tuesday. On the forecast track, the center of Lowell will move across portions of the Papahanaumokuakea Marine National Monument, just west of the main Hawaiian Islands, on Monday night. Lowell is then forecast to turn toward the northwest and slow down by early Wednesday after passing the Hawaiian Islands. Maximum sustained winds remain near 120 mph (195 km/h) with higher gusts. Lowell is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Weakening is forecast to begin later tonight into tomorrow. However, Lowell is forecast to remain a hurricane as it passes near the Hawaiian Islands. Hurricane-force winds extend outward up to 60 miles (95 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 948 mb (28.00 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Lowell can be found in the Tropical Cyclone Discussion under AWIPS header HFOTCDCP4 and WMO header WTPA44 PHFO. WIND: Hurricane conditions are possible and tropical storm conditions are expected in Kauai County beginning Monday afternoon or evening. Wind speeds atop and on the windward and leeward sides of hills and mountains are often up to 30 percent stronger than the near-surface winds, and wind gusts to hurricane force are possible. Hurricane conditions are expected in the Papahanaumokuakea Marine National Monument between Nihoa and French Frigate Shoals Monday night, with tropical storm conditions beginning Monday afternoon. RAINFALL: Hurricane Lowell is expected to produce additional rainfall totals of 6 to 10 inches for Kauai, with maximum totals of 14 inches possible. For the Big Island, 4 to 8 inches of rain is expected with isolated totals of 12 inches possible. For Maui, 2 to 4 inches of rain is expected, with isolated maximum totals of 8 inches possible. Across the remaining islands, rainfall of 2 to 4 inches is possible. This rainfall may produce significant flash flooding and mudslides, especially across Kauai county and portions of the Big Island. For a complete depiction of forecast rainfall associated with Hurricane Lowell, please see the National Weather Service Storm Total Rainfall Graphic available at hurricanes.gov/graphics_ep12.shtml?rainqpf STORM SURGE: The combination of storm surge and 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... Kauai County...1-3 ft Oahu...Up to 1 ft The deepest water will occur along the immediate coast near and to the right of the center, where the surge will be accompanied by large and destructive waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. 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_cp4.shtml?peakSurge. TORNADOES: Several tornadoes are possible near Kauai and Niihau Monday afternoon through Monday night. A few tornadoes are also possible across the remainder of the Hawaiian Islands. SURF: Swells from Lowell are likely to cause life-threatening surf and rip current conditions during the next several days across many of the Hawaiian islands. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 800 PM HST. Next complete advisory at 1100 PM HST.