Photo: P199 · CC BY-SA 4.0High radon around Lac du Bonnet: 21% of homes tested in the area exceed 200 Bq/m³
Some 4.1% of the land within 25 km of Lac du Bonnet has burned since 1986; at 0.10% a year that is moderate, not high. Earthquakes matter little: NRCan’s model puts building losses at $0.005 a year per $1,000 of value, against $0.030 for the typical town. Hazard risk gives Lac du Bonnet a grade of B; its wildfire band pulls it down.
What stands out about Lac du Bonnet’s hazards
For Lac du Bonnet, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Lac du Bonnet faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Lac du Bonnet grades B for hazard risk
The grade weighs Lac du Bonnet’s seismic risk and radon equally, and wildfire is one-sided: a high band counts against a town, a low one earns nothing.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Some fire around Lac du Bonnet: 4.1% of the land within 25 km since 1986, 0.6% within 5 km
Past fire around Lac du Bonnet’s homes, from the national burned-area record, with the fuel within 5 km.
The yearly burn rate around Lac du Bonnet is 0.10%, above 0.000% for the typical Canadian town but under the high band.
Within 5 km of Lac du Bonnet, 24% of the land is forest fuel; widen the ring to 25 km and it is 49%.
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in Manitoba · highest of 190
At 0.10% a year, Lac du Bonnet is near the top in Manitoba: 14th of 190, behind Flin Flon (Part) (1.68%).
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
Lac du Bonnet is in the moderate band, which holds 5.4% of Canada’s 2,610 towns; 2.1% rank higher.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
No flood study is listed for Lac du Bonnet
What Canada’s Flood Map Inventory lists for Lac du Bonnet: who studied flooding and where to see their maps.
No flood study on the national inventory covers Lac du Bonnet; ask the municipality, which is the authority for its flood maps.
Towns with a flood study on file
Mapping in Manitoba reaches 18% of towns, below the 58% across Canada, and not Lac du Bonnet.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Nothing here counts toward Risk; the studies are pointers to the maps their owners keep for Lac du Bonnet.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Little shaking expected in Lac du Bonnet: $0.005 a year per $1,000
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
0.2 times the typical $0.030: Lac du Bonnet’s $0.005 is low for Canada.
Shaking damage a year per $1,000 of building value
Shaking damage around Lac du Bonnet runs at $0.005 a year, near the $0.006 of the typical town in Manitoba; Virden has $0.007.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
At the bottom of Canada’s range, Lac du Bonnet has 96% of the 2,611 towns above it.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
What a quake does after the shaking, fire, landslides, tsunami, falls outside NRCan’s figure for Lac du Bonnet.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
21% of homes tested around Lac du Bonnet are over the radon guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Lac du Bonnet’s survey area reads 21% over the guideline, well past the typical Canadian town’s 6.6%. Behind radon tests sits data gathered across the North Eastman health region, with Lac du Bonnet one part of it.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon runs higher around Lac du Bonnet than in most towns in Manitoba: 21% over the guideline (12% is typical), 1% over 600.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
One home in five or more tests over the guideline around Lac du Bonnet; 3.1% of Canada’s 2,611 towns are in that band and 1.5% higher.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
Health Canada advises testing every home, Lac du Bonnet’s included, whatever the area’s figure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Lac du Bonnet
Environment and Climate Change Canada issues the weather alerts for Lac du Bonnet; Alert Ready carries the urgent ones to phones, radio and TV.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
For fires near Lac du Bonnet, the national fire information system maps danger and active fires daily; local authorities give any evacuation order.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Lac du Bonnet
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Lac du Bonnet | Moderate | $0.005 | 21% | None listed |
| Lac du Bonnet 3,592 · 5.1 km | Moderate | $0.004 | 21% | Yes |
| Pinawa 1,653 · 17 km | Moderate | $0.005 | 21% | None listed |
The fire record around Pinawa is a touch heavier than Lac du Bonnet’s, but the band is the same: moderate (here moderate).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Lac du Bonnet faces
What to do about the hazards Lac du Bonnet faces, and what to ask before you buy.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Has it had a radon test?
- Ask the municipality for flood maps.
- How close is the forest edge?
- Are flood and wildfire insured?
What this data can and can’t tell you
- Wildfire counts one way. For Lac du Bonnet, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Lac du Bonnet takes its 2007 health region’s share.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Lac du Bonnet’s census subdivision (a neighbourhood shows its city’s).
- Flood studies aren’t flood zones. The flood inventory points to maps; it is incomplete and not the official source, so ask the municipality about any street in Lac du Bonnet.
Questions about flooding and hazards in Lac du Bonnet
Is Lac du Bonnet at risk of wildfire?
Fire has reached 4.1% of the land around Lac du Bonnet since 1986 (last in 2025); at moderate, it neither helps nor hurts the grade.
How is Lac du Bonnet’s Hazard risk Grade worked out?
Hazard risk gives Lac du Bonnet B, weighing earthquakes and radon and counting wildfire only against it.
How big is the earthquake risk in Lac du Bonnet?
In NRCan’s seismic model, Lac du Bonnet’s buildings lose $0.005 per $1,000 of value in an average year.
Does Lac du Bonnet flood?
With 0 studies on the inventory, Lac du Bonnet’s flood risk is unmapped nationally; check with the municipality before buying.
Is radon a problem in Lac du Bonnet?
Around Lac du Bonnet, 100 survey homes were tested and 21% came in over 200 Bq/m³, a guide to the area, not to any one home.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).