Is there a fire near Grimsby, ON right now?
Wildfires near Grimsby, ON
Updated
7 fire clusters within 80 km; nearest 20 km WNW, 36 detections in the last 48 h Latest satellite pass with a detection: Sun 1:56 pm local (2026-10-25 17:56 UTC).
Live satellite fire detections within 80 km of Grimsby, Ontario, Canada, grouped into fire clusters, with the wind direction for smoke. Times are local (America/Toronto).
- Fire clusters within 80 km
- 7 last 48 h
- Nearest fire
- 20 km WNW 4 km ENE of Hamilton
- Hotspot detections nearby
- 63 VIIRS 375 m pixels, last 48 h
- Strongest fire radiative power
- 27 MW low-intensity
- Wind now
- SSW 16 km/h gusts 20 km/h, humidity 37%
Fires near Grimsby, ON right now
NASA's VIIRS sensors detected 63 thermal hotspots in 7 separate clusters within 80 km of Grimsby, Ontario, Canada in the last 48 h. The closest is 20 km WNW of the city centre (4 km ENE of Hamilton), with 36 detections and a peak fire radiative power of 5 MW, which is low-intensity for a single 375 m pixel.
1 cluster is within 25 km, close enough that smoke, ash or road closures may affect the city. Distances are measured from the city centre to the nearest detection, not to the fire's edge.
Across Canada there are 109 fire clusters in the same window, 24 of them in Ontario.
| Fire cluster | From city | Detections | Peak FRP | First seen | Last seen |
|---|---|---|---|---|---|
| 4 km ENE of Hamilton | 20 km WNW | 36 | 5 MW | Sat 2:50 am | Sun 1:56 pm |
| 6 km NE of Oakville | 33 km N | 3 | 1 MW | Sat 2:50 am | Sun 2:31 am |
| at Thorold | 33 km ESE | 1 | 1 MW | Sat 2:50 am | Sat 2:50 am |
| 8 km N of Ancaster | 35 km WNW | 4 | 2 MW | Sat 2:50 am | Sat 4:33 am |
| 17 km E of Simcoe | 60 km SW | 15 | 13 MW | Sat 2:50 am | Sun 4:11 am |
| 5 km NNW of Simcoe | 69 km WSW | 2 | 17 MW | Sat 2:13 pm | Sat 2:13 pm |
| 6 km SSE of Simcoe | 73 km SW | 2 | 27 MW | Sat 2:13 pm | Sat 2:13 pm |
Smoke and wind
Wind at Grimsby, ON is from the SSW at 16 km/h (gusts 20 km/h), so smoke near the city drifts toward the NNE. Relative humidity is 37% and the temperature 20°C.
Grimsby, ON is not directly downwind of the nearest fire at the moment, though winds shift and plumes from larger fires can still reach the city.
Smoke shows up first as PM2.5 on air-quality monitors; the Grimsby, ON air quality page has the live reading.
Evacuations and official information
GodsView shows satellite detections only. It does not know fire perimeters, containment or evacuation zones. Always follow evacuation orders from local authorities.
CIFFC (ciffc.net) publishes the national wildfire situation; provincial fire status and evacuation alerts come from Ontario Forest Fires (ontario.ca/page/forest-fires). Alertable and local emergency alerts carry evacuation orders.
About satellite fire detections
Satellite thermal hotspots are not all wildfires: gas flares, steel works, volcanoes and planned agricultural or prescribed burns show up too. VIIRS passes over most places about twice a day, so a fire can start or grow between passes, and thick smoke or cloud can hide one.
Fire radiative power (FRP) is the heat a fire gives off, in megawatts per pixel: under 10 MW is usually a small or smouldering fire, over 100 MW an intense flaming front.
Wildfires near other cities
More for this area
Data: NASA FIRMS (VIIRS active fires), Open-Meteo, GeoNames.