Tropical Storm Lala delivered drenching rain and damaging winds across the Hawaiian islands on Sunday, Aug. 15 [1].
The event highlights the vulnerability of the islands to high-intensity weather systems that can cause significant disruption even without making direct landfall.
Lala, which had previously reached hurricane strength, weakened to a tropical storm as it moved through the region [1]. Although the system did not make landfall, its eyewall skirted the islands, pushing moisture and wind across the archipelago [2].
The impact was felt across the Hawaiian islands, with particularly heavy effects reported on the Big Island [3]. Meteorologists said the storm's proximity allowed it to dump massive amounts of precipitation over short periods.
Rainfall totals reached nearly three feet in some locations [1]. These volumes of water often lead to flash flooding and landslides in the steep terrain of the islands.
High winds accompanied the rain, contributing to the overall damage across the islands [2]. Local authorities monitored the system as it passed, focusing on the risks associated with the storm's eyewall passing close to populated areas [4].
The storm has since continued to weaken as it moves away from the islands [1].
“Rainfall totals reached nearly three feet in some locations”
This event demonstrates that a storm's classification and landfall status are not the sole indicators of risk. Because the eyewall, the most intense part of the storm, passed close to the islands, Hawaii experienced near-hurricane conditions. The extreme rainfall totals underscore the risk of hydrological disasters in the Pacific, where narrow bands of intense precipitation can trigger rapid flooding.
