...WIDESPREAD WINTER WEATHER AND WIND IMPACTS... .A series of cold fronts will move through the Northern Rockies bringing wind and snow impacts beginning as early as late tonight into Friday morning. Snow squalls are possible in west-central and southwest Montana late Friday night into early Saturday morning. A push of Arctic air will move westward across the Continental Divide on Saturday bringing another uptick and change in direction of winds with much colder temperatures to follow. * WHAT...Snow expected. There is a likelihood of moderate to isolated major winter weather impacts. Total snow accumulations between 3 and 12 inches. Winds gusting as high as 50 mph. * WHERE...Polebridge, Glacier National Park, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Bad Rock Canyon. * WHEN...From 8 AM Friday to 5 PM MST Saturday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. Avoid travel in the impacted areas if possible. Widespread closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Friday evening commute, especially over higher passes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...An Arctic front will move westward across the Continental Divide on Saturday bringing an uptick in northeast winds in, and near, canyon gaps and downslope foothills. Much colder temperatures with, and behind, this Arctic front. Rapid freeze up of any wet or slushy roads is likely.
| Last Updated | |
| River Levels | 4310 cfs ( ft) |
| Percent of Normal | +100% |
| Optimal Range | 900-19000 cfs |
| Status | Too High |
| Class Level | III+ to IV+ |
| Elevation | 2,889 ft |
| Run Length | 26.0 Mi |
| Gradient | 37 FPM |
| Streamflow Discharge | 4310 cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 12369000 |