{
  "corridors": [
    {
      "band": "CLEAR",
      "confidence": "HIGH",
      "drivers": [
        "No closures or restrictions overnight — QEII open",
        "Mostly dry, ice in places; Highway 2 corridor: lowest minus 9°C, winds to 11 km/h",
        "No Environment Canada warnings in force as of 5:11 AM MDT (EC check via Weather Navigation)",
        "Tonight's EC forecast low minus 6°C at Calgary and minus 4°C at Edmonton — corridor low recorded as the colder endpoint, minus 6; Calgary overnight wind chill minus 12 (+8)"
      ],
      "id": "qeii",
      "low_c": -6,
      "low_source": "Environment Canada",
      "name": "QEII — Calgary ↔ Edmonton",
      "score": 8,
      "sources": [
        "Environment Canada",
        "511 Alberta (via Weather Navigation)"
      ]
    },
    {
      "band": "CLEAR",
      "confidence": "HIGH",
      "drivers": [
        "No closures or restrictions overnight — Yellowhead open",
        "Mostly dry, ice in places; Highway 16 corridor: lowest minus 10°C near Edson, winds to 14 km/h",
        "No Environment Canada warnings in force as of 5:11 AM MDT (EC check via Weather Navigation)",
        "Tonight at Jasper: a few clouds, low minus 9°C, wind chill minus 12 overnight (+8)"
      ],
      "id": "yellowhead",
      "low_c": -9,
      "low_source": "Environment Canada",
      "name": "Yellowhead — Edmonton ↔ Jasper",
      "score": 8,
      "sources": [
        "Environment Canada",
        "511 Alberta (via Weather Navigation)"
      ]
    },
    {
      "band": "CAUTION",
      "confidence": "HIGH",
      "drivers": [
        "Open to through traffic overnight — checked 4:00 AM PDT, no incidents reported",
        "Partial closure / major restriction: 1 work zone in effect, paving lane closures in both directions (+40)",
        "Winter conditions reported at the summit; M+S or 3-peak-mountain-snowflake tires required Oct 1 to Apr 30 (standing rule, not a chain-up requirement, not scored)",
        "No Environment Canada alerts shown for Merritt; Sunday night EC Merritt forecast: mainly cloudy, low plus 1°C, rain ending Sunday morning, snow level 1000 metres rising to 1400 metres"
      ],
      "id": "coquihalla",
      "low_c": 1,
      "low_source": "Environment Canada",
      "name": "Coquihalla — Hope ↔ Kamloops",
      "score": 40,
      "sources": [
        "DriveBC (via Is The Coquihalla Open)",
        "Environment Canada"
      ]
    },
    {
      "band": "CLEAR",
      "confidence": "LIMITED",
      "drivers": [
        "No corridor closure — 401 mainline open through Toronto (live traffic aggregator, 7:18 AM EDT)",
        "One overnight 401 item: collision on the 401 westbound ramp at Highway 427, Toronto, all ramp lanes closed, reported about 10:18 PM EDT Oct 24 — interchange-level, not a mainline corridor closure (not scored)",
        "Continuous construction McCowan Road to Neilson Road (moderate) and a disabled vehicle at Brock Road, Pickering (lane-level, not scored)",
        "EC Toronto-area: no alerts shown; today sunny, high 18; tonight a few clouds, low plus 9"
      ],
      "id": "on-401",
      "low_c": 9,
      "low_source": "Environment Canada",
      "name": "ON 401 — Windsor ↔ Toronto ↔ Kingston",
      "score": 0,
      "sources": [
        "routeoutlook.com (live traffic aggregator, presenting Ontario 511 data)",
        "Environment Canada"
      ]
    }
  ],
  "scored_at": "2026-10-25T05:22:00-06:00"
}