Canyon-Owyhee School Service Agency (Cossa) Snow Day Calculator
Will Canyon-Owyhee School Service Agency (Cossa) close tomorrow? Check the odds.
Powered by NOAA / National Weather ServicePowered by NOAA / National Weather ServiceWill Canyon-Owyhee School Service Agency (Cossa) close tomorrow? Check the odds.
Powered by NOAA / National Weather ServiceCanyon-Owyhee School Service Agency (Cossa) serves Wilder and the surrounding area in Idaho, covering 1 school. When winter weather threatens, the closure decision is made district-wide — which is why the forecast above is centred on the district itself rather than any single campus.
Rural districts run the longest bus routes over the least-treated roads, so they typically close at lower snowfall totals than nearby urban districts — often on forecasts that would leave a city district open.
Idaho averages about 44 inches of snow per year. Mountain communities and valley districts have very different closure thresholds. Boise closes less often than northern Idaho.
We pull the live forecast for the district's own coordinates and score the factors that drive a closure call: snowfall accumulation and its timing relative to the morning bus run, ice and freezing rain, wind chill, and forecast confidence. The result is a probability for a full closure, a two-hour delay, and an early dismissal.
Districts announce closures between roughly 5 AM and 6 AM, working from conditions on the ground rather than the previous evening's forecast. Weather models are most reliable inside 24 hours, so checking after 6 PM the night before gives you the most accurate read.
This is an independent prediction, not an announcement. Always confirm a closure with Canyon-Owyhee School Service Agency (Cossa) directly before acting on it.