Skip to the Atlas
Regional data sources checked. Conditions can change faster than a map updates.

Place and systems instrument

Cascadia Atlas

Regional context—not address advice or instructions.

Compare current reports, observed and forecast conditions, historical events, terrain, and planning layers. The Atlas shows regional connections; it does not diagnose an address or issue instructions.

Need the responsible local source? Find it in Signals.

Checking sources Map waiting to load.

Use the map controls to zoom or restore the regional view. Keyboard users can focus the map and use arrow keys to pan. Use the Layers panel to change data and the Legend control to read active symbols.

Cascadia Atlas

Loading reports, conditions, history, terrain, and planning layers from northern California to coastal British Columbia.

Legend4 keys
Current & observed Current fire Evacuation Weather alert Road report

Source status

What the Atlas reached

Only layers switched on are checked. Each source is labeled available, partial, or unavailable—and sources this site has not connected are named as such.

Connected current-report sources

Connected reports cover Washington and Oregon current fires, southern-B.C. current fires, selected Washington weather alerts, and Chelan County mapped evacuations. Northern California is outside the current-report feed.

  • Waiting for current-report sources.

For situational awareness only. Follow local officials and evacuation orders. Reviewed July 25, 2026.

Other on-demand sources: USGS earthquake catalog, NIFC historical fire perimeters, FEMA flood zones, generalized river corridors, official U.S. and Canadian volcano references, and OpenStreetMap basemap data.

How to read the Atlas data

Current reports have different clocks and boundaries

Sources update on different schedules, and live coverage is partial across jurisdictions. A missing marker can mean no report, no connected feed, delayed geometry, or a source outage. It does not prove that a place is safe.

Observed wind is a set of points

Observed arrows come from individual stations at reported times. They are not a continuous wind field, and nearby ridges, canyons, passes, shorelines, vegetation, and structures can produce very different local wind.

Forecast wind is a model field

Forecast shading is 10 km model guidance, not an observation. Values are interpolated between model points, and the model smooths mountain terrain. Forecast timing, speed, and direction are uncertain—especially near ridges, canyons, passes, shorelines, and exposed slopes.

Fire perimeters describe a reported edge

A fire point may appear before a perimeter. Incident status, size, and mapped edges can be delayed or incomplete. A perimeter is not a forecast of fire or smoke spread.

Flood and historical layers support planning

Regional river corridors are generalized, and FEMA zones cover U.S. communities only where mapped. These layers do not show current inundation, depth, parcel-level safety, or what will happen in the next storm. Historical records show past events, not a prediction.

Volcano points are handoffs, not hazard zones

A point marks a summit or volcanic center for regional orientation. It does not show lahars, ashfall, ground hazards, closures, or current volcanic activity. Open the point and continue to the official volcano-specific map and local emergency authority.