Disaster data guides

Reading wildfire maps across Europe

A Europe-wide fire-danger forecast, active-fire detection and mapped burned area have different methods and timing.

Open disaster explorer

What Europe's wildfire products actually show

The European Commission's European Forest Fire Information System (EFFIS) brings together several products for Europe and neighbouring countries. Its Current Situation Viewer can display fire-danger forecasts, active fires and rapid damage assessment layers. A forecast reflects conditions under which fire may spread; an active-fire point is a thermal detection; a mapped burnt-area product attempts to describe affected land. They should not be added together as though they were counts of the same thing.

EFFIS's data and services catalogue identifies separate MODIS and VIIRS active-fire layers and other products. Read the legend, date range and product name before comparing its map with the PocketWorld wildfire layer. Two views can use different satellite products or time windows and therefore show different numbers of points without implying that fire activity changed.

Why national totals need care

A Europe-wide map crosses country borders, reporting systems and land types. EFFIS's mapped-fire statistics use their own coverage and methodology; a total on that portal is not automatically a count of every reported local incident. Likewise, a hotspot cluster is not a precise perimeter. Managed vegetation burning may appear in mapped-fire products. Compare like with like: the same geography, date window, product and unit of measurement.

NASA FIRMS offers a second way to examine active-fire detections by sensor and recent time window. Satellite pixels are observations at overpass time, and cloud or smoke may obscure activity. A burnt-area polygon is derived by a different process and may be published later. If a fresh hotspot seems outside an older polygon, check timestamps before assuming the boundary is incorrect.

How to compare maps without overstating them

Start with the PocketWorld disaster explorer for geographic context and inspect the source and freshness of the selected record. Open EFFIS to choose the question you actually have: danger forecast, active detection or mapped burnt area. Use the official provider's legend and methodological notes to interpret its symbols. When writing about a particular country, label the country and observation period rather than calling a continental aggregate a local measurement.

For a specific community or travel route, check that country's fire and civil-protection authority. EFFIS is a cross-border information service, while local warnings and access restrictions come from the competent national or regional agencies. PocketWorld does not deliver emergency alerts, and an empty or retained layer does not prove a location is safe.

Keep the source attached to the claim

When sharing a map, include whether the symbol came from NASA, EFFIS or another named provider, plus the product and date. Call a hotspot a detection rather than a fire perimeter or an evacuation area. Our hotspot guide and source registry give more context on measurement limits and data provenance.

Data sources

References are linked beside the explanations above. This evergreen guide does not report current incidents.