High Wind — Yukon Delta Coast, Alaska

2025-10-11 to 2025-10-12 · Yukon Delta Coast, Alaska

Event narrative

The USArray fixed Vaisala WXT536 weather station, operated by the Alaska Earthquake Center on Kusilvak Mountain (K13KX), reported sustained winds of 45 to 75 mph from the night of October 11th through midday October 12th. A peak wind gust of 107 mph was measured on October 12th at 0554AKST. A wind gust of 66 mph was measured at the Emmonak AWOS site (PAEM) on October 12th at 0456AKST. At the Chevak Airport AWOS site (PAVA), a wind gust of 74 mph was recorded at 0543AKST on October 12th. The Kotlik Airport AWOS (PFKO) measured a wind gust of 81 mph at 0556AKST on October 12th.

At Kotlik, a house was blown from its pilings and came to rest on its roof. A power outage occurred after a utility pole was snapped.

Wider weather episode

Ex-Typhoon Halong brought high winds and severe coastal flooding to the West Coast of Alaska from October 11th to 13th. The storm caused severe coastal flooding in the Kuskokwim River Delta and high water levels extending north to the Yukon River Delta. These coastal areas all reported high wind gusts near or upwards of 70 to 80 mph. Inland areas as well as the Eastern Norton Sound saw impacts from damaging winds, with gusts upwards of 50 to 60 mph, causing damage to roofs and siding, downed trees, and damaged power lines leading to outages. Significant wave activity on the Koyukuk River near Huslia damaged, swept away, or sank several boats.

Source: NOAA Storm Events Database, event_id 1296615. Narrative written by the NWS forecast office that issued the report.