Public Tropical Cyclone Advisory
Issued by NWS
Issued by NWS
069 WTPA32 PHFO 140559 TCPCP2 BULLETIN Tropical Storm Lala Intermediate Advisory Number 7A NWS Central Pacific Hurricane Center Honolulu HI CP012026 Issued by NWS National Hurricane Center Miami FL 800 PM HST Thu Aug 13 2026 ...LALA HOLDING STEADY... ...FORECAST TO BECOME A HURRICANE AS IT APPROACHES THE BIG ISLAND OF HAWAII... SUMMARY OF 800 PM HST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...16.2N 147.9W ABOUT 530 MI...855 KM ESE OF HILO HAWAII ABOUT 740 MI...1195 KM ESE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Hawaii County A Tropical Storm Watch is in effect for... * Maui County, including the islands of Maui, Lanai, Molokai and Kahoolawe 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 Watch means that tropical storm conditions are possible within the watch area, in this case within the next 36 to 48 hours. Interests elsewhere in the main Hawaiian Islands, and in the Papahanaumokuakea Marine National Monument, should 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 Lala was located near latitude 16.2 North, longitude 147.9 West. Lala is moving toward the west-northwest near 12 mph (19 km/h). A west-northwestward motion is expected during the next several days, with some slowing in forward speed as Lala approaches the Big Island on Saturday, followed by an increase in forward speed later in the weekend. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Steady strengthening is forecast, and Lala is expected to become a hurricane as it approaches the Big Island. Tropical-storm-force winds extend outward up to 275 miles (445 km) from the center. The minimum central pressure estimated from Air Force Reserve Hurricane Hunter aircraft data is 997 mb (29.44 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Lala can be found in the Tropical Cyclone Discussion under AWIPS header HFOTCPCP2 and WMO header WTPA42 PHFO. WIND: Hurricane conditions are expected on the Big Island of Hawaii by early Saturday, with tropical storm conditions possible in Maui County by late Saturday. Wind speeds atop and on the windward sides of slopes and mountains are often up to 30 percent stronger than the near-surface winds indicated in this advisory, and in some elevated locations could be even greater. RAINFALL: Tropical Storm Lala is expected to produce rainfall totals of 8 to 12 inches across Maui and the Big Island with maximum totals of 25 inches possible across the Big Island. Rainfall totals of 4 to 6 inches with maximum amounts of 8 inches across the remainder of the island chain. This rainfall may produce life-threatening flooding and mudslides, especially in areas of steep terrain. For a complete depiction of forecast rainfall associated with Lala, 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...1 to 3 ft The deepest water will occur along the immediate coast, 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 Lala are expected to reach the east-facing shores of the state on 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. $$ Forecaster Gibbs