Flood Warning Prompts Closure of Alpine Section of Sun Road in Glacier National Park
• Glacier National Park has closed the alpine section of Going-to-the-Sun Road due to a flood watch issued for the region. The National Weather Service in Missoula forecasts heavy rainfall, with 1 to 2 inches expected in lower areas and 2 to 4 inches in the mountains, including Glacier National Park and the Continental Divide. The flood watch is in effect from Sunday afternoon through Tuesday morning, with the heaviest precipitation anticipated Monday into early Tuesday. The closure extends from Avalanche Creek to Jackson Glacier Overlook, and shuttle services will be suspended on Monday, September
• Park officials are monitoring conditions and will reopen affected areas once it is safe to do so. Temperatures are expected to rebound to seasonal norms midweek, with highs in the 70s and 80s, before another cool weather system potentially brings mountain snow by next weekend.
Impact & Risks
The flood watch affects the West Glacier area, Flathead Valley, and Mission Valley, with risks of flooding in creeks, streams, and low-lying areas. Urban locations with poor drainage may also experience water accumulation. Visitors to Glacier National Park should anticipate detours, delays, and limited access due to hazardous conditions caused by fast-moving water, debris, and saturated soils. The closure of Going-to-the-Sun Road impacts travel and shuttle services, which are suspended for Monday. Residents and visitors are advised to remain vigilant and prepared for potential flooding.
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