Wildfire low, radon 12%: how Rossmere-B stands on hazards
The burned-area map is nearly blank around Rossmere-B, 0% within 25 km since 1986, 0.001% a year. Earthquakes matter little: NRCan’s model puts building losses at $0.006 a year per $1,000 of value, against $0.030 for the typical town. Rossmere-B grades B+ for hazard risk, with wildfire counted against it.
What stands out about Rossmere-B’s hazards
Four national sources, each read for Rossmere-B: earthquakes, radon, past fires and flood studies.
What Rossmere-B faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Rossmere-B grades B+ for hazard risk
For Rossmere-B, Risk will be the average of earthquakes and radon, with wildfire added only if it makes the average worse.
Its place: #10 of 185 in Manitoba and #940 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Only 66 homes were tested in the survey area, so the radon share is rough. Small fires and grass fires are largely missing from the national burned-area record.
Wildfire is rare near Rossmere-B: 0% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Rossmere-B’s residents live, and the fuel next to their homes.
Rossmere-B burns at 0.001% a year, low against 0.000% for the typical Canadian town.
The 5 km ring around Rossmere-B’s homes is clear of burns since 1986, the nearest 15 km out.
Forest makes up 0% of the land within 5 km of Rossmere-B and 0.1% within 25 km, little for a forest fire to run through.
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 189
In the top quarter in Manitoba: Rossmere-B ranks 31st of 189 at 0.001% a year, with Flin Flon (Part) first at 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.
Some fire is mapped around Rossmere-B, but not enough to leave the low band, where 92% of Canada’s 2,610 towns are; 7.5% 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 Rossmere-B
Flood studies whose area touches Rossmere-B, from NRCan’s inventory, each linked to its owner.
An empty entry for Rossmere-B on the inventory isn’t proof of safety; ask locally for flood maps.
Towns with a flood study on file
Rossmere-B has no flood study on file; only 18% of towns in Manitoba do, against 58% across Canada.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood mapping is shown for Rossmere-B to be opened and checked, never turned into a grade.
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 Rossmere-B: $0.006 a year per $1,000
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
At $0.006 per $1,000, Rossmere-B carries 0.2 times the typical Canadian town’s earthquake risk ($0.030): low.
Figures for earthquake risk are published for the city of Winnipeg as a whole, not for Rossmere-B alone.
Shaking damage a year per $1,000 of building value
Shaking damage around Rossmere-B runs at $0.006 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.
Rossmere-B is in the lower part of Canada’s range for earthquake risk; 88% of the 2,611 towns are higher.
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).
The model counts damage to Rossmere-B’s buildings and their occupants from shaking only: not liquefaction, landslides, tsunami or fires after a quake.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Radon runs high around Rossmere-B: 12% of tested homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Measured across the Winnipeg health region: radon tests
More homes than usual test high around Rossmere-B: 12% against 6.6% for the typical Canadian town.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Around Rossmere-B, 12% of tests topped the guideline, about the same as the typical town in Manitoba (12%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
More high tests than most: Rossmere-B sits in a band that only 22% of Canada’s 2,611 towns share, with 4.6% above.
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.
Basements, soil and how a house is sealed decide its radon, so in Rossmere-B only a test can say.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Rossmere-B
Alerts for Rossmere-B come from Environment and Climate Change Canada and, for emergencies, Alert Ready.
| 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. |
Alert Ready carries evacuation orders for Rossmere-B to phones; CWFIS shows the day’s fire danger.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Rossmere-B
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Rossmere-B | Low | $0.006 | 12% | None listed |
| Munroe West 2,532 · 0.9 km | Low | $0.006 | 12% | None listed |
| Kildonan Drive 5,063 · 1.0 km | Low | $0.006 | 12% | None listed |
| Rossmere-A 13,613 · 1.5 km | Low | $0.006 | 12% | None listed |
| Seven Oaks 3,244 · 2.0 km | Low | $0.006 | 12% | None listed |
| Valley Gardens 8,329 · 2.0 km | Low | $0.006 | 12% | None listed |
| Chalmers 12,384 · 2.0 km | Low | $0.006 | 12% | None listed |
Fire is no heavier anywhere nearby than around Rossmere-B (low), with Munroe West next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Rossmere-B faces
Practical steps for Rossmere-B’s hazards, most pressing first.
- 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.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Ask the municipality for flood maps.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Radon is a survey. Health Canada’s survey tested some 14,000 homes over three months; until postal-area boundaries are loaded, Rossmere-B takes its 2007 health region’s share.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Rossmere-B’s homes since 1986, a history of fire that may lower Risk but never raises it.
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Rossmere-B’s figure is its subdivision’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 Rossmere-B.
Questions about flooding and hazards in Rossmere-B
Is radon a problem in Rossmere-B?
12% of the 66 homes Health Canada tested around Rossmere-B topped the guideline; your own house needs its own test.
How is Rossmere-B’s Hazard risk Grade worked out?
Rossmere-B’s Hazard risk grade is B+, built on earthquakes and radon with a one-sided wildfire input.
Does Rossmere-B flood?
No study on Canada’s Flood Map Inventory covers Rossmere-B (0), which doesn’t mean it has never been mapped, so ask the municipality.
Is Rossmere-B at risk of wildfire?
Not much by Canadian standards: Rossmere-B’s band is low, with 0% of the land within 25 km burned since 1986 (last in 2012), so wildfire doesn’t change its grade.
How big is the earthquake risk in Rossmere-B?
Expected earthquake damage in Rossmere-B comes to $0.006 a year for each $1,000 that buildings are worth.
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).