Climate Risk Profile: St Helens, Tasmania
St Helens faces a moderate overall climate risk, with coastal hazards and flooding being the primary concerns. Climate change is expected to exacerbate these risks, particularly through sea level rise and increased rainfall intensity. Residents should prepare for more frequent and intense coastal events and flooding.
Overall Risk Score
Confidence: Medium
Hazard Breakdown
Climate Hazard Breakdown for St Helens
Flood
St Helens faces a moderate risk of flooding, primarily from heavy rainfall and riverine overflow. The risk is expected to increase with climate change.
Key drivers:
- ·Increased rainfall intensity
- ·Sea level rise
Bushfire
The bushfire risk in St Helens is moderate due to surrounding vegetation. Drier conditions and higher temperatures are expected to exacerbate this risk.
Key drivers:
- ·Increased temperatures
- ·Drier vegetation
Heat
St Helens experiences a relatively low risk from heatwaves compared to other regions, but increasing temperatures are still a concern.
Key drivers:
- ·Rising average temperatures
- ·More frequent heatwaves
Coastal
St Helens is highly vulnerable to coastal hazards due to its location on the coast. Sea level rise and storm surges pose significant threats.
Key drivers:
- ·Sea level rise
- ·Increased storm frequency
Wind
Notable wind risk — westerly wind storms
Storm
Moderate storm risk — occasional severe weather
Social
Lower social stability — regional isolation
Energy
Moderate energy costs — winter heating
In-Depth Climate Risk Guides for St Helens
Property buying guide with climate risk assessment
Flood zone mapping, historical events, and projections
BAL assessment, vegetation proximity, and fire history
Multi-hazard safety assessment to 2050
Severe weather, hail, and wind risk analysis
Extreme heat days, urban heat island, and cooling costs
Premium estimates and insurance availability
Climate-adjusted property investment analysis
Detailed Hazard Analysis
heat Risk
St Helens experiences a relatively low risk from heatwaves compared to other regions, but increasing temperatures are still a concern.
Primary Drivers
- ·Rising average temperatures
- ·More frequent heatwaves
Projections (RCP8.5)
2030
3.5
2050
4.0
flood Risk
St Helens faces a moderate risk of flooding, primarily from heavy rainfall and riverine overflow. The risk is expected to increase with climate change.
Primary Drivers
- ·Increased rainfall intensity
- ·Sea level rise
- ·Inadequate drainage infrastructure
Projections (RCP8.5)
2030
7.0
2050
7.5
coastal Risk
St Helens is highly vulnerable to coastal hazards due to its location on the coast. Sea level rise and storm surges pose significant threats.
Primary Drivers
- ·Sea level rise
- ·Increased storm frequency
- ·Coastal erosion
Projections (RCP8.5)
2030
7.8
2050
8.3
bushfire Risk
The bushfire risk in St Helens is moderate due to surrounding vegetation. Drier conditions and higher temperatures are expected to exacerbate this risk.
Primary Drivers
- ·Increased temperatures
- ·Drier vegetation
- ·Stronger winds
Projections (RCP8.5)
2030
4.5
2050
5.0
What This Means for Property Owners
Insurance Outlook
Insurance premiums may increase due to climate-related risks.
Price Impact
Properties in high-risk areas may experience price reductions.
Buyer Checklist
- 1.Check flood maps and coastal inundation zones.
- 2.Assess bushfire risk and implement mitigation measures.
- 3.Consider the potential impact of sea level rise on property value.
- 4.Review insurance coverage for climate-related events.
Local Climate Evidence
Flood Evidence
- Nearest Waterway
- Georges Bay
- Elevation Range
- 0-20 meters
- Flood Zone
- Areas adjacent to Georges Bay are prone to inundation.
Historical flood events have impacted properties along the waterfront and low-lying areas.
View council flood mapBushfire Evidence
- Distance to Bushland
- Adjacent to forested areas.
- Planning Overlay
- Check with Tasmania Fire Service for current bushfire prone areas.
- Bushfire Prone Area
- Yes
The area has experienced bushfires in the past, particularly during dry summers.
Heat Evidence
- Avg January Max Temp
- 23°C
- Heat Stress Days/Year
- 1.5 days
While heatwaves are not as common as in other parts of Australia, increasing temperatures are still a concern.
Coastal Evidence
- Distance to Coast
- 0.5 km
- Sea Level Rise Exposure
- Significant exposure to sea level rise.
- Erosion Risk
- Moderate erosion risk along the coastline.
Historical Climate Events
A bushfire near St Helens threatened properties but was contained by fire services.
SourceA severe storm caused damage to coastal infrastructure and properties in St Helens.
SourceSignificant rainfall led to flash flooding in low-lying areas of St Helens, impacting local businesses.
SourceClimate Outlook to 2050
Projections based on CSIRO and BOM climate modelling. Scenario: RCP8.5
| Hazard | Today | 2030 | 2050 |
|---|---|---|---|
| flood | 65 | 7.0(+0.5) | 7.5(+1.0) |
| bushfire | 40 | 4.3(+0.3) | 4.5(+0.5) |
| heat | 30 | 3.2(+0.2) | 3.4(+0.4) |
| coastal | 73 | 8.1(+0.8) | 8.8(+1.5) |
By 2030, St Helens is projected to experience a moderate increase in overall climate risk, with coastal hazards and flooding posing the greatest threats. Sea level rise and increased rainfall intensity are expected to exacerbate these risks.
CSIRO Climate ProjectionsAdaptation Recommendations
Upgrade Coastal Defenses
ImmediateInvest in seawalls and other coastal defenses to protect against sea level rise and storm surges.
Est. cost: High
Learn moreImprove Drainage Infrastructure
Near-termUpgrade drainage systems to handle increased rainfall intensity and reduce the risk of flooding.
Est. cost: Medium
Learn moreBushfire Mitigation Measures
Near-termImplement bushfire mitigation measures, such as clearing vegetation around properties and creating firebreaks.
Est. cost: Low
Learn moreCommunity Education Programs
Long-termDevelop community education programs to raise awareness about climate risks and adaptation strategies.
Est. cost: Low
Learn moreRelocate vulnerable infrastructure
Long-termMove critical infrastructure away from areas at high risk of coastal inundation.
Est. cost: Very High
Learn moreAbout St Helens's Climate Risk Profile
St Helens, located on the east coast of Tasmania, is particularly vulnerable to coastal hazards due to its low-lying geography and proximity to the ocean. Sea level rise poses a significant threat to coastal infrastructure and properties. Increased storm surges can lead to inundation and erosion, impacting the local community and economy.
Flooding is another significant risk for St Helens, with heavy rainfall events causing riverine flooding and stormwater runoff. Climate change is projected to increase rainfall intensity, leading to more frequent and severe flooding events. This can damage properties, disrupt transportation, and pose risks to public health.
Bushfire risk is moderate in St Helens, with surrounding vegetation posing a potential fire hazard. Drier conditions and higher temperatures are expected to increase the likelihood of bushfires, particularly during the summer months. Residents should be aware of bushfire safety measures and have evacuation plans in place.
While heatwaves are less frequent in St Helens compared to other regions, increasing average temperatures are still a concern. Vulnerable populations, such as the elderly and those with chronic health conditions, may be at risk during periods of extreme heat. It is important to stay hydrated and seek shelter in cool environments during hot weather.
Data sources: BOM · CSIRO · Tasmania Fire Service · Tasmania State Emergency Service · Break O'Day Council
Local Government Resources
Break O'Day Council
Frequently Asked Questions
What are the main climate risks facing St Helens?
St Helens is primarily at risk from coastal hazards, such as sea level rise and storm surges, as well as flooding from heavy rainfall events. Bushfire risk is also a concern.
How is climate change expected to impact St Helens in the future?
Climate change is projected to increase the frequency and intensity of coastal hazards and flooding events in St Helens. Average temperatures are also expected to rise, potentially leading to more frequent heatwaves.
What can I do to protect my property from climate risks in St Helens?
Consider implementing coastal defenses, such as seawalls, and improving drainage around your property. Clear vegetation around your home to reduce bushfire risk. Review your insurance coverage for climate-related events.
Where can I find more information about climate change and its impacts on St Helens?
Consult the Break O'Day Council website, the Tasmania Department of Primary Industries, Parks, Water and Environment, and the Bureau of Meteorology for more information.
Is St Helens a good place to invest in property given the climate risks?
While St Helens faces climate risks, it remains a desirable location for many. Consider the specific location of the property and its vulnerability to coastal hazards and flooding. Implement appropriate mitigation measures to protect your investment.
What is the council doing to address climate change in St Helens?
The Break O'Day Council is developing and implementing climate adaptation strategies to address the risks facing the community. This includes upgrading infrastructure, improving emergency response capabilities, and raising community awareness.
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