Natural Hazards Monitoring - 17 August 2026

OFFICIAL

Severe weather

United States of America
On 17 August 2026, a media report informed that Hawaii officials provided updated information on the impacts of Tropical Storm Lala across the island chain. According to the report, the storm, which weakened from a hurricane on Sunday without making landfall, caused approximately 100 homes on the Big Island to be swept off their foundations due to heavy rainfall and strong winds. No deaths were reported in connection with the affected homes, and search-and-rescue operations were conducted in the coastal communities of Na'alehu and Wai'ohinu, near the southern tip of the Big Island. More than 200,000 homes and businesses were without power by midday, including nearly two-thirds of customers on the Big Island, and at least three hospitals were operating on generator power. The Honolulu Fire Department responded to more than 600 weather-related incidents, including 147 reports of downed trees. Damage to roads and several small bridges also affected access to some areas. The heaviest rainfall was reported on Lanai, Moloka'i, and Oahu, while wind gusts exceeded 100 mph (161 km/h) at Mauna Kea. The report is available from: National Hurricane Center and Central Pacific Hurricane Center and Beaumont Enterprise

UNOFFICIAL

Severe weather

Peru
On 17 August 2026, a media report informed that the National Institute of Civil Defense (INDECI, per its acronym in Spanish) of Peru provided information on the impacts of unusual rainfall affecting districts in southern Lima. According to the report, intense and persistent rainfall during the night of 16 August affected at least 298 people, 62 dwellings, three schools, and one market. Additional impacts included flooding, sewer system overflows, and precautionary power outages. Damage to dwellings and basic services was reported mainly in sector 1 of the Villa El Salvador district, as well as in the Chorrillos district. The report is available from: Infobae

Severe weather

Colombia
On 17 August 2026, a media report informed that Colombian authorities provided information on heavy rainfall that further aggravated the emergency in Chocó, Pereira, Buenaventura, and other areas affected by the magnitude 7.4 earthquake. According to the report, rainfall caused flooding in temporary shelters and additional damage to dwellings, further affecting families already impacted by the earthquake. Authorities issued an alert for Juanchaco and Ladrilleros due to an unusual rise in sea level and strong waves that posed an additional threat to homes in these rural communities. In Quibdó, Chocó, rainfall during the night of 13 August caused flooding, further complicating conditions for families affected by both the earthquake and severe weather. The situation was reported to the national crisis room for follow-up. The report is available from: Infobae