Climate Risk in Grange, SA
Grange is a coastal suburb in South Australia facing increasing climate risks. The primary concerns are flooding, heatwaves, and coastal hazards due to sea level rise. Residents should prepare for more frequent extreme weather events.
Overall Risk Score
Confidence: Medium
Hazard Breakdown
Climate Hazard Breakdown for Grange
Flood
Grange faces a moderate risk of flooding due to its low-lying coastal location and proximity to the Patawalonga River. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.
Key drivers:
- ·Sea level rise
- ·Increased rainfall intensity
Bushfire
Bushfire risk in Grange is relatively low due to its coastal location and limited vegetation. However, dry vegetation in nearby reserves could pose a threat during extreme heat and wind conditions.
Key drivers:
- ·Dry vegetation
- ·Extreme heat
Heat
Grange experiences a high risk of heatwaves, particularly during summer. The urban environment and coastal humidity can exacerbate heat stress for vulnerable populations.
Key drivers:
- ·Rising average temperatures
- ·Increased frequency of heatwaves
Coastal
Grange is exposed to coastal hazards such as sea level rise and coastal erosion. Low-lying areas are vulnerable to inundation during storm surges and high tides.
Key drivers:
- ·Sea level rise
- ·Storm surge
Wind
Moderate wind risk — gusty northerly winds
Storm
Moderate storm risk — occasional thunderstorms
Social
Moderate social stability
Energy
Moderate energy costs — summer cooling
In-Depth Climate Risk Guides for Grange
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
Grange experiences a high risk of heatwaves, particularly during summer. The urban environment and coastal humidity can exacerbate heat stress for vulnerable populations.
Primary Drivers
- ·Rising average temperatures
- ·Increased frequency of heatwaves
- ·Urban heat island effect
Projections (RCP8.5)
2030
7.5
2050
8.0
flood Risk
Grange faces a moderate risk of flooding due to its low-lying coastal location and proximity to the Patawalonga River. Intense rainfall events can lead to stormwater runoff exceeding drainage capacity.
Primary Drivers
- ·Sea level rise
- ·Increased rainfall intensity
- ·Urban development
Projections (RCP8.5)
2030
6.5
2050
7.0
coastal Risk
Grange is exposed to coastal hazards such as sea level rise and coastal erosion. Low-lying areas are vulnerable to inundation during storm surges and high tides.
Primary Drivers
- ·Sea level rise
- ·Storm surge
- ·Coastal erosion
Projections (RCP8.5)
2030
6.5
2050
7.5
bushfire Risk
Bushfire risk in Grange is relatively low due to its coastal location and limited vegetation. However, dry vegetation in nearby reserves could pose a threat during extreme heat and wind conditions.
Primary Drivers
- ·Dry vegetation
- ·Extreme heat
- ·Wind
Projections (RCP4.5)
2030
2.2
2050
2.5
What This Means for Property Owners
Insurance Outlook
Increased premiums for properties in flood-prone areas
Price Impact
Potential for decreased property values in high-risk zones
Buyer Checklist
- 1.Check flood maps and insurance costs
- 2.Assess property's elevation and drainage
- 3.Consider heat mitigation measures
- 4.Evaluate coastal erosion risks
Local Climate Evidence
Flood Evidence
- Nearest Waterway
- Patawalonga River
- Elevation Range
- 0-5 meters
- Flood Zone
- Coastal Flood Zone
The Patawalonga River can overflow during heavy rainfall, impacting properties near the riverbanks.
View council flood mapBushfire Evidence
- Distance to Bushland
- 2 km to nearest reserve
- Planning Overlay
- No significant bushfire overlay
- Bushfire Prone Area
- No
Limited bushfire risk due to coastal location and urban development.
Heat Evidence
- Avg January Max Temp
- 29.5°C
- Heat Stress Days/Year
- 5 days
Coastal humidity can increase heat stress during summer heatwaves.
Coastal Evidence
- Distance to Coast
- 0.5 km
- Sea Level Rise Exposure
- Low-lying areas exposed to sea level rise
- Erosion Risk
- Moderate erosion risk along the coastline
Historical Climate Events
Climate Outlook to 2050
Projections based on CSIRO and BOM climate modelling. Scenario: RCP4.5
| Hazard | Today | 2030 | 2050 |
|---|---|---|---|
| flood | 60 | 6.2(+0.2) | 6.8(+0.8) |
| bushfire | 20 | 2.1(+0.1) | 2.2(+0.2) |
| heat | 70 | 7.4(+0.4) | 8.5(+1.5) |
| coastal | 60 | 6.3(+0.3) | 7.0(+1.0) |
By 2030, Grange is projected to experience a moderate increase in overall climate risk, with heatwaves and coastal flooding posing the most significant challenges. Adaptation measures are needed to protect vulnerable populations and infrastructure.
CSIRO Climate ProjectionsAdaptation Recommendations
Improve stormwater drainage
Near-termUpgrade stormwater infrastructure to handle increased rainfall intensity and reduce flood risk.
Est. cost: Medium
Learn moreImplement heatwave early warning system
ImmediateDevelop a system to alert residents of impending heatwaves and provide guidance on staying safe.
Est. cost: Low
Learn moreProtect coastal areas from erosion
Long-termImplement coastal protection measures such as seawalls and dune restoration to mitigate erosion.
Est. cost: High
Learn morePromote water conservation
Near-termEncourage residents to conserve water through rebates and education programs to reduce strain on water resources during droughts.
Est. cost: Low
Learn moreCommunity education on climate risks
ImmediateConduct workshops and distribute information to raise awareness about climate change impacts and adaptation strategies.
Est. cost: Low
Learn moreAbout Grange's Climate Risk Profile
Grange, a suburb of Adelaide, South Australia, is increasingly vulnerable to the impacts of climate change. Its coastal location makes it particularly susceptible to sea level rise, storm surges, and coastal erosion. The low-lying topography exacerbates the risk of flooding from intense rainfall events and rising sea levels.
Heatwaves are becoming more frequent and intense, posing a significant threat to public health, especially for elderly and vulnerable populations. The urban environment of Grange contributes to the urban heat island effect, further amplifying heat stress during summer months.
While bushfire risk is relatively low compared to other regions, dry vegetation in nearby reserves could still pose a threat during extreme heat and wind conditions. It is important to maintain vegetation and implement fire safety measures.
The local council and state government are working to address these challenges through adaptation strategies and infrastructure improvements. However, individual preparedness and community resilience are crucial for mitigating the impacts of climate change in Grange.
Data sources: BOM · CSIRO · SA SES · City of Charles Sturt
Local Government Resources
City of Charles Sturt
Frequently Asked Questions
What are the main climate change risks in Grange?
The main climate change risks in Grange are flooding, heatwaves, and coastal erosion due to sea level rise. These risks are projected to increase in the future.
How is the council addressing climate change in Grange?
The City of Charles Sturt is implementing various strategies to address climate change, including improving stormwater drainage, promoting water conservation, and developing a heatwave early warning system.
What can residents do to prepare for heatwaves in Grange?
Residents can prepare for heatwaves by staying hydrated, seeking air-conditioned environments, checking on vulnerable neighbors, and following advice from SA Health.
What is the risk of coastal erosion in Grange?
Grange faces a moderate risk of coastal erosion, which is projected to increase with sea level rise. The council is implementing coastal protection measures to mitigate this risk.
Where can I find more information about flood risks in Grange?
You can find more information about flood risks in Grange on the City of Charles Sturt website, including flood maps and advice on preparing for floods.
Are there any community groups working on climate change in Grange?
Yes, there are several community groups in the Charles Sturt area that focus on environmental sustainability and climate action. Check the council website for details.
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