The West Central Montana Avalanche Center (WCMAC) advisory area covers approximately 908,721 acres. The WCMAC advisory area includes the Bitterroot Mountains on the Bitterroot, Clearwater, and Lolo National Forest system lands from Lost Trail Pass north to Granite Pass, the Rattlesnake Mountains, the Southern Swan and Mission Mountains on Lolo National Forest lands north of Missoula and near Seeley Lake. A national avalanche advisory map is also available.
This map is an approximation of the area covered by the advisory. Weather and snowpack conditions change continuously and are highly variable throughout these areas.