Official fire-weather context around Arrow Lakes
FireRadar centres Natural Resources Canada’s source-rendered Fire Weather Index layer on Arrow Lakes. FWI is an overall measure of potential fire intensity in a standard forest-fuel context; it is not an active-fire marker, ignition prediction, evacuation signal, or property-risk score.
FireRadar deliberately does not print a local “Low”, “Moderate”, “High”, or “Extreme” label from a sampled map pixel. The official raster remains visible so users can interpret the source product without a false level of point precision.
Why conditions can differ nearby
The Arrow Lakes form a long reservoir system between steep forested mountains, with communities, rural properties, forestry activity, campgrounds, boat access, ferries, and highway connections spread over a large north-south area. Fire impacts can be highly local while smoke and travel effects move across the broader lake corridor. Residents and visitors may care about the reservoir system rather than a single municipality, especially when moving between Nakusp, Castlegar, and remote shoreline destinations. FireRadar supplies official wildfire context without claiming ferry, road, or recreation access status. Fire Weather Index conditions are regional guidance rather than a property-level threat forecast. Use this focused map together with current incident, smoke, air-quality, restriction, and emergency information from the responsible authorities.
Check the other signals separately
Fire danger, active incidents, smoke forecasts and observed air quality answer different questions. Keeping them separate prevents a high fire-weather value from being mistaken for an active fire or a smoke forecast from being mistaken for measured AQHI.
Important limitations
This map is broad fire-weather guidance. Fuel type, local terrain, weather observations, suppression, restrictions and actual fire behaviour can differ from the national layer. A map colour never means travel is safe, burning is permitted, or an area is free of wildfire danger. Follow the responsible provincial, territorial, Indigenous, municipal, park and emergency authorities for operational decisions.
Official methodology and source
Natural Resources Canada publishes the Fire Weather Index through the Canadian Wildland Fire Information System. FireRadar requests that public source layer directly and preserves its symbology instead of calculating a separate local danger rating.