Bristol Bay Faces 4-Foot Surge as Ex-Typhoon Champi Arrives

Remnants of Typhoon Champi are scheduled to reach the Bristol Bay region on Saturday morning, according to the National Weather Service. The system will traverse the southern Bering Sea before making landfall. Jason Laney, a warning coordination meteorologist for the service, noted that tropical storms often expand in size as they move into colder waters. This expansion spreads wind over a much larger area, meaning communities in the Aleutian Islands and Western Alaska will still experience the effects.

Laney explained that the wind field expands significantly as the system moves into high latitudes. "We're talking not just 10, 20 miles from the center. We're talking 100, 200 miles from the center," he said. This broad impact area ensures that the storm's reach extends well beyond the immediate vicinity of the center.

A briefing issued on Wednesday afternoon provided specific forecasts for the Yukon-Kuskokwim Delta. Hooper Bay could see water levels reach two to four feet above the normal high tide line on Thursday afternoon. This surge has the potential to flood a road connecting the east and west sides of the town. A coastal flood advisory is in effect for the stretch from Hooper Bay to Kotlik starting at 7 a.m. Thursday.

Communities located farther north, including Nome and Kotzebue, are also expected to experience high surf and coastal erosion. In Nome, heavy rainfall presents a major concern. The forecast calls for about 1.5 inches of rain. This precipitation, combined with high water levels in Norton Sound, may hinder the drainage of the Nome and Snake rivers. Laney stated that the water will have difficulty depositing into Norton Sound because the sound's water is attempting to move up the rivers.

Laney described Champi as part of a series of fall storms fueled by a powerful El Niño. A Bering Sea storm last week led to flight cancellations across Western Alaska and prompted some residents in Kivalina to evacuate their homes. The current system is not the last of this season's weather events.

Early next week, another low-pressure system is expected to enter the Bering Sea. Laney said this new system could be stronger than Champi and is likely to linger for a while. "So I think we just need to be prepared for this ongoing weather pattern to hold up," he said. The latest forecast is available on the National Weather Service’s website.