Forecast Freeway Maps Weather Mile by Mile

Field notes

The interface organizes forecasts around the physical structure of a journey: route, exit, milepost, elevation, and departure time. Its stated coverage includes 64 Interstate routes, 12,856 exits, and named mountain passes such as Donner and Snoqualmie. The page also describes historical layers, including radar-measured rain checked against normals and thirty years of hourly road climatology, though the extracted homepage does not expose a sample result.