On August 25, 2024, at approximately 4:00 PM, a significant landslide occurred in Ketchikan, Alaska, resulting in one fatality, three injuries, and the destruction of multiple homes. The slide originated from a steep, forested hillside above the Third Avenue Bypass in the White Cliff neighborhood, descending rapidly and causing extensive damage. 

In the aftermath, local authorities issued evacuation orders, and emergency shelters were established for displaced residents. The City and Borough of Juneau collaborated with state agencies to assess damage and coordinate recovery efforts. The event underscored the need for enhanced monitoring and preparedness strategies to mitigate the impact of future glacial outburst floods. 

This disaster serves as a stark reminder of the dynamic environmental challenges facing glacial regions and the importance of proactive community planning and resilience building. 

The landslide followed a period of heavy rainfall, with lower elevations receiving approximately 2.5 inches and higher elevations up to 9 inches over the weekend. This substantial precipitation likely contributed to the soil instability that triggered the slide. In response to the disaster, Alaska Governor Mike Dunleavy declared a state of emergency, directing state agencies to assist with recovery efforts. Local authorities established evacuation centers and coordinated with the American Red Cross to support displaced residents. The event had a profound effect on the Ketchikan community, displacing dozens of families and causing significant infrastructure damage. Residents and officials expressed shock at the magnitude of the landslide, noting its unprecedented scale in the area.

This disaster underscores the challenges posed by natural hazards in Alaska's rugged terrain and highlights the importance of preparedness and resilient infrastructure in vulnerable communities.  

On August 6, 2024, Juneau, Alaska, experienced a catastrophic glacial outburst flood originating from Suicide Basin, adjacent to the Mendenhall Glacier. This event led to record-breaking water levels in the Mendenhall River, causing widespread destruction in the Mendenhall Valley.

Suicide Basin, a depression formed due to the retreat of the Mendenhall Glacier, accumulates meltwater and precipitation over time. Periodically, the natural ice dam containing this water fails, releasing vast amounts of water downstream—a phenomenon known as a glacial lake outburst flood. Such events have been recorded annually since 2011, but the 2024 outburst was unprecedented in its severity.

Impact:

• Record Water Levels: The Mendenhall River crested at 15.99 feet, surpassing previous records and inundating nearby areas.
• Property Damage: Over 100 homes suffered significant damage, with several structures collapsing into the river due to severe erosion.
• Infrastructure: Key roads and bridges were submerged or washed out, disrupting transportation and access within the valley.

In mid-September 2022, Typhoon Merbok transitioned into an extratropical cyclone as it entered the Bering Sea, bringing hurricane-strength winds, extreme storm surges, and high waves to over 35 Alaska Native communities along a 1,300-mile stretch of coastline. The storm caused significant flooding, erosion, and damage to homes, infrastructure, and subsistence camps. In response, FEMA and the Alaska Department of Homeland Security and Emergency Management approved over $100 million to assist communities in rebuilding and recovering from the storm's devastation.

This event highlights the vulnerability of Alaska's coastal communities to severe weather and the importance of ongoing preparedness and resilience efforts.