🇨🇦 Canada Weather Network Audit

Scope: Ontario • Quebec • Alberta • British Columbia (Full ECCC Inventory — 5,805 stations)
Methodology: ECCC 5-category classification per Minister Dabrusin's response
Key finding: Quebec remains worst at 34.1% (98 stations). British Columbia added for the first time: 49 problematic stations at 16.9% failure rate. Ontario stable at 48 stations (22.6%). Alberta unchanged at 33 stations (11.5%). All 228 classified as ACTIVE_TRANSMISSION_ISSUE — stations ECCC considers operational yet failing to deliver reliable precipitation records.

Scope: Ontario • Quebec • Alberta (Full ECCC Inventory — 4,058 stations)
Methodology: ECCC 5-category classification per Minister Dabrusin's response
Key finding: Quebec 34.1% failure — worst of three provinces. Zero improvement in Ontario (47) and Quebec (98) since February 2026. Alberta added for the first time: 33 problematic stations in the agricultural belt (Peace River, Red Deer corridor, Lethbridge). All 178 classified as ACTIVE_TRANSMISSION_ISSUE — stations ECCC considers operational yet failing to deliver reliable precipitation records.

Scope: Ontario • Quebec (Full ECCC Inventory)
Methodology: ECCC 5-category classification per Minister Dabrusin's response
Finding: Quebec 34.1% failure vs Ontario 22.3% — 145 stations referred to NIRT

Scope: Alberta • Ontario • Quebec
Finding: Initial baseline audit — Ontario at 88.9%, Alberta at 82.0%, Quebec at 75.8%
Methodology note: V1 did not separate decommissioned stations from active failures. Superseded by V2 (February 2026 onward), which applies ECCC's five-category classification framework and reports the effective failure rate across the operational network only. For current methodology and findings, see the April 2026 report above.

Scope: Ontario • Quebec
Finding: Initial audit establishing baseline — system-wide collapse documented