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Wildfire watch
Live thermal-anomaly detections from the VIIRS instrument aboard NOAA-20 / Suomi NPP. Each dot is a satellite-confirmed heat signature consistent with fire — moorland burns, forest fires, agricultural burns, occasionally industrial heat. Updated every few hours.
Tomorrow is the high-risk day — moderate.
Peak 21°C · min RH 40% · wind 30 km/h · 10 of the last 14 days dry. UK-tuned index — temperatures rarely reach the catastrophic tier the way Australian conditions do, so this scale compresses the lower end and caps the top.
Multi-model fire-weather treatment uses the same loop as the convective outlook on /outlook. Skill verification for the wildfire layer is on the bench — observed-level scoring for fire days requires different ground truth than storm reports.
Southern UK
0
Active · peak FRP 0.0 MW
Scotland
0
Active · peak FRP 0.0 MW
UK total
0
Active · peak FRP 0.0 MW
Map
Southern UK below the dashed line.
What FRP means
Fire Radiative Power, in megawatts. Roughly the radiant heat the satellite measured at that pixel. Higher = bigger / hotter fire.
What confidence means
VIIRS classifies each pixel as low, nominal, or high. Low = pixel passed the threshold but with caveats (cloud edge, twilight); high = strong, unambiguous heat signature.
Limits + filtering
Cloud cover blocks detection. Small surface fires under 1 MW often miss. Industrial heat sources (gas flares, kilns), solar glare on greenhouses, and hot summer farmland register as spurious low-FRP fires. By default we hide pixels with low confidence or FRP < 3 MW — show all to see them.
Stay safe
See an active fire in the open? Call 999and ask for the Fire and Rescue Service. Don't try to fight a wildfire yourself. Don't BBQ on dry moorland in summer. Read the full guidance on the heatwaves & wildfire preparedness page.
Recent detections · 0
No notable wildfire detections — only low-FRP / low-confidence background pixels right now (industrial heat, glare, hot farmland).
This isn't a guarantee of zero fire — VIIRS misses small smouldering burns and overpasses skip parts of the day. Show 1 background pixel to see what we filtered. For ground-truth, check Forestry England wildfire bulletins or call 999 if you can see a fire in the open.