Meteorologists in western Montana have issued an advisory for an early-season snowstorm that is expected to bring significant impacts to certain areas. The National Weather Service has warned of moderate to major impacts from the storm, with a 50 percent chance of isolated major impacts in some locations. Wet snow is expected above 6,500 feet, with the possibility of up to 10 inches or more in some areas. The snowfall could affect recreators such as hunters, hikers, and campers, who should be prepared for wet and cold conditions on Thursday. Areas likely to be impacted include Bannock Pass, Georgetown Lake, Lemhi Pass, and others.
The impending storm is not unusual for this time of year, with snow levels reaching as low as 6,500 feet in late August. While the snow is expected to melt by Saturday, it could create hazardous traveling conditions and impact backcountry users. Outdoor recreationalists are urged to prepare for winter conditions and may face challenges on backcountry roads. The storm is part of a larger weather system that is expected to impact the northern U.S., with parts of Idaho and northwest Wyoming also likely to be affected. In addition to snow, the system will bring moderate to heavy rain and gusty winds to the Intermountain West and northern Rockies.
The storm is being driven by a deep upper low crossing from the Northwest and is anticipated to churn over the northern Rockies on Thursday. Most of the significant precipitation is expected to be confined to the northern Rockies and the High Plains in Montana. There is a risk of flooding throughout northwest Montana due to several inches of rainfall, prompting a “Slight Risk” of excessive rainfall. The storm poses a potential threat to travelers, with the advisory warning to slow down and use caution while traveling. Road conditions may be hazardous, and cold temperatures could lead to hypothermia.
Overall, the early-season snowstorm in western Montana has the potential to cause major impacts in certain areas, prompting an advisory from meteorologists. Recreators and outdoor enthusiasts should prepare for winter conditions and be aware of the potential hazards associated with the storm. The system is expected to pass through the region by Saturday, bringing relief from the snow and wet conditions. Despite the unusual timing of the snowfall, the storm is part of a larger weather system that is affecting the northern U.S. and could lead to flooding in parts of Montana. Travelers are advised to stay informed of road conditions and exercise caution while traveling during the storm.
