Photo: Masterhatch · CC0Weyburn is on Canada’s flood inventory: 1 listed, led by Water Security Agency
Fire has left almost no mark near Weyburn: 0% of the land within 25 km since 1986, 0.000% a year. Earthquake risk in Weyburn is ordinary: NRCan’s model puts building losses at $0.033 a year per $1,000 of value, close to the typical town’s $0.030. Radon is higher than usual: 14% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Hazard risk gives Weyburn a grade of C, from earthquakes and radon alone.
What stands out about Weyburn’s hazards
Four national sources, each read for Weyburn: earthquakes, radon, past fires and flood studies.
What Weyburn faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Weyburn: C
Earthquake risk and radon make Weyburn’s grade; wildfire can only lower it, never raise it, and flood studies are listed but not scored.
Its place: #101 of 104 in Saskatchewan and #2,198 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. Small fires and grass fires are largely missing from the national burned-area record.
Wildfire is rare near Weyburn: 0% of the land within 25 km burned since 1986, 0% within 5 km
Past fire around Weyburn’s homes, from the national burned-area record, with the fuel within 5 km.
Forty years of fire maps put Weyburn at 0.000% a year, low next to the typical Canadian town’s 0.000%.
Little near Weyburn’s homes can carry a forest fire; only 0.1% of the land within 5 km is forest fuel, and 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, Weyburn 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.
Only 7.5% of Canada’s 2,610 towns are above the low band, which holds 92%; Weyburn, at a rounded zero, is far from them.
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.
Water Security Agency has mapped flooding for Weyburn (1 study)
What Canada’s Flood Map Inventory lists for Weyburn: who studied flooding and where to see their maps.
One study on the inventory touches Weyburn, Water Security Agency’s from 2023, and its area can be large, so it says a map exists, not that the town floods.
| Study | By | Year | Status |
|---|---|---|---|
| City of Weyburn Flood Mapping Study | Water Security Agency | 2023 | final |
Towns with a flood study on file
Only 55% of towns in Saskatchewan have a flood study, short of Canada’s 58%; Weyburn is one of them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
The grade leaves flood out, since a study area says nothing about how many of Weyburn’s homes are at risk.
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 Weyburn $0.033 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
1.1 times the typical $0.030: Weyburn’s $0.033 is ordinary.
Shaking damage a year per $1,000 of building value
Weyburn has the highest shaking-damage figure in Saskatchewan, $0.033 a year per $1,000; the median is $0.006.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Middle of the pack: 48% of Canada’s 2,611 towns have more earthquake risk than Weyburn.
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 loss is to Weyburn’s buildings alone, from ground shaking; infrastructure and secondary hazards are left out.
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 Weyburn: 14% of tested homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Shared with the rest of the Sun Country RHA: radon tests
Weyburn’s area, at 14%, is above the 6.6% of the typical Canadian town, so testing is worth more here than most places.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Weyburn’s area, at 14%, is above the median in Saskatchewan (9.1%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Weyburn is in the 10–20% band, with 22% of Canada’s 2,611 towns; only 4.6% are 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 survey sample isn’t a map: any home in Weyburn can be high, and a three-month test is the only way to know.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Weyburn
Environment and Climate Change Canada issues the weather alerts for Weyburn; 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. |
In fire season, check CWFIS for danger and active fires around Weyburn, and listen to local authorities for orders.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Weyburn’s neighbours compare on hazards
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Weyburn | Low | $0.033 | 14% | Yes |
| Weyburn No. 67 1,149 · 5.1 km | Low | $0.031 | 14% | Yes |
Nowhere around Weyburn burns more: Weyburn No. 67, the closest rival, is low to its low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Weyburn faces
Practical steps for Weyburn’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?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Weyburn is its health region’s, the survey’s design unit.
- Flood studies aren’t flood zones. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Weyburn.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Weyburn’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; Weyburn’s figure is its subdivision’s.
Questions about flooding and hazards in Weyburn
How is Weyburn’s Hazard risk Grade worked out?
Weyburn’s Hazard risk grade is C, built on earthquakes and radon with a one-sided wildfire input.
How big is the earthquake risk in Weyburn?
In NRCan’s seismic model, Weyburn’s buildings lose $0.033 per $1,000 of value in an average year.
Is radon a problem in Weyburn?
The area’s survey found 14% of 116 tested homes above Health Canada’s guideline, so a three-month test is worth doing in Weyburn.
Is Weyburn at risk of wildfire?
No meaningful wildfire history near Weyburn: 0% of nearby land since 1986, band low.
Does Weyburn flood?
There is flood mapping for Weyburn on the national inventory, each study linked to its owner’s map, none of them graded.
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).