Photo: Yakky97 · CC BY-SA 4.0Around McNab, 25% of tested homes have radon above the guideline
Wildfire barely registers for McNab, at 0% of the land within 25 km since 1986 (0.000% a year). Seismic risk runs low: $0.014 of expected damage per $1,000 of buildings a year, the typical town $0.030. Hazard risk gives McNab a grade of C+, from earthquakes and radon alone.
What stands out about McNab’s hazards
For McNab, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What McNab faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
McNab grades C+ for hazard risk
The grade weighs McNab’s seismic risk and radon equally, and wildfire is one-sided: a high band counts against a town, a low one earns nothing.
Its place: #74 of 104 in Saskatchewan and #2,005 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Few fires near McNab: 0% within 5 km, 0% within 25 km
Fires mapped since 1986 around where McNab’s residents live, and the fuel next to their homes.
The land within 25 km of McNab burns at 0.000% a year on average, the low band; the typical Canadian town: 0.000%.
Forest fuel is scarce around McNab: 0% of the land within 5 km, 0% within 25 km.
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 Saskatchewan · highest of 104
Of the 104 towns in Saskatchewan, 54 have a burn rate that rounds to zero, McNab among them; La Loche leads at 1.94% a year.
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.
92% of Canada’s 2,610 towns are in the low band and 7.5% above it; McNab is among the many where the yearly burn rate rounds to zero.
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.
McNab is on the flood map inventory: 2 studies, latest by Water Security Agency
Flood studies whose area touches McNab, from NRCan’s inventory, each linked to its owner.
The newest of 2 studies covering McNab is Water Security Agency’s, from 2025; open its map to see the zones.
| Study | By | Year | Status |
|---|---|---|---|
| Regina Flood Mapping Study | Water Security Agency | 2025 | final |
| Regina | Water Security Agency | 2020 | under review · not public |
Towns with a flood study on file
Flood maps are thinner in Saskatchewan, 55% of towns against 58% nationally, but McNab has one.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood studies don’t enter the grade; they are listed so you can open the official map for McNab.
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.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
Earthquakes cost buildings in McNab just $0.014 per $1,000 a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
0.5 times the typical $0.030: McNab’s $0.014 is low for Canada.
Behind earthquake risk sits data gathered across the city of Regina, with McNab one part of it.
Shaking damage a year per $1,000 of building value
McNab’s $0.014 tops the median in Saskatchewan, $0.006, though Weyburn reaches $0.033.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
73% of Canada’s 2,611 towns expect more shaking damage than McNab.
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 McNab.
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 McNab: 25% of tested homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · Radon tests for the Regina Qu'Appelle RHA
More homes than usual test high around McNab: 25% against 6.6% for the typical Canadian town.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon runs higher around McNab than in most towns in Saskatchewan: 25% over the guideline (9.1% is typical), 4.3% 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 McNab; 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.
A low area share in McNab doesn’t clear a house, nor does a high one condemn it: test.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in McNab
Alerts for McNab 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. |
Evacuation orders for McNab come from the municipality or the province, while CWFIS maps fire danger every day.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around McNab
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| McNab | Low | $0.014 | 25% | Yes |
| Rosemont/Mount Royal 10,497 · 1.6 km | Low | $0.014 | 25% | Yes |
| North Central 9,124 · 1.8 km | Low | $0.014 | 25% | Yes |
| Cathedral Village 7,311 · 1.8 km | Low | $0.014 | 25% | Yes |
| Normanview Residents Group 3,916 · 2.8 km | Low | $0.014 | 25% | Yes |
| Normanview West 2,866 · 2.8 km | Low | $0.014 | 25% | Yes |
| Downtown 4,282 · 2.9 km | Low | $0.014 | 25% | Yes |
The neighbour with the most fire is Rosemont/Mount Royal (low), still no more than McNab (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what McNab faces
What to do about the hazards McNab faces, and what to ask before you buy.
- 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?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for McNab without grading them.
- Radon is a survey. Radon figures pool the survey’s home tests by area: postal areas once their boundaries arrive, the 2007 health region around McNab until then.
- Wildfire counts one way. For McNab, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for McNab’s census subdivision (a neighbourhood shows its city’s).
Questions about flooding and hazards in McNab
Is radon a problem in McNab?
Around McNab, 94 survey homes were tested and 25% came in over 200 Bq/m³, a guide to the area, not to any one home.
How big is the earthquake risk in McNab?
Expected earthquake damage in McNab comes to $0.014 a year for each $1,000 that buildings are worth.
How is McNab’s Hazard risk Grade worked out?
McNab grades C+ for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Does McNab flood?
A flood study covers McNab on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
Is McNab at risk of wildfire?
No meaningful wildfire history near McNab: 0% of nearby land since 1986, band low.
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).