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Climate Risk in Alstonvale, New South Wales

Alstonvale, New South Wales
Medium Risk
Updated Apr 2026

Alstonvale faces moderate risks from flooding and heatwaves, with bushfire risk also a concern. Climate change is expected to exacerbate these risks, increasing the frequency and intensity of extreme weather events. Residents should prepare for hotter summers and potential flooding events.

Overall Risk Score

52/100
Medium

Confidence: Medium

Hazard Breakdown

Flood
6.5
Bushfire
4.0
Heat
6.0
Coastal
1.0

Climate Hazard Breakdown for Alstonvale

increasing

Flood

65/100

Alstonvale faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

Key drivers:

  • ·Increased rainfall intensity
  • ·Urban development
increasing

Bushfire

40/100

The bushfire risk in Alstonvale is moderate, with some areas bordering bushland. Drier conditions and higher temperatures can increase the likelihood of bushfires.

Key drivers:

  • ·Increased temperatures
  • ·Drier conditions
increasing

Heat

60/100

Alstonvale is likely to experience more frequent and intense heatwaves. Higher average temperatures can pose health risks, especially for vulnerable populations.

Key drivers:

  • ·Rising global temperatures
  • ·Urban heat island effect
stable

Coastal

10/100

Alstonvale is not directly exposed to coastal risks such as sea level rise and coastal erosion due to its inland location.

Key drivers:

  • ·Distance from the coast
stable

Wind

28/100

Moderate wind risk — East Coast Lows and gust fronts

stable

Storm

39/100

Moderate storm risk — severe thunderstorms and hail

stable

Social

21/100

Moderate social stability — mixed urban density

increasing

Energy

35/100

Moderate energy costs — climate-driven cooling demand

In-Depth Climate Risk Guides for Alstonvale

Should I Buy

Property buying guide with climate risk assessment

Flood Risk

Flood zone mapping, historical events, and projections

Bushfire Risk

BAL assessment, vegetation proximity, and fire history

Climate Safety

Multi-hazard safety assessment to 2050

Storm Risk

Severe weather, hail, and wind risk analysis

Heat Risk

Extreme heat days, urban heat island, and cooling costs

Insurance Costs

Premium estimates and insurance availability

Investment Score

Climate-adjusted property investment analysis

Detailed Hazard Analysis

heat Risk

60/100

Alstonvale is likely to experience more frequent and intense heatwaves. Higher average temperatures can pose health risks, especially for vulnerable populations.

Primary Drivers

  • ·Rising global temperatures
  • ·Urban heat island effect

Projections (RCP8.5)

2030

6.5

2050

7.0

Data source

flood Risk

65/100

Alstonvale faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to riverine and flash flooding.

Primary Drivers

  • ·Increased rainfall intensity
  • ·Urban development
  • ·Climate change

Projections (RCP8.5)

2030

7.0

2050

7.5

Data source

coastal Risk

10/100

Alstonvale is not directly exposed to coastal risks such as sea level rise and coastal erosion due to its inland location.

Primary Drivers

  • ·Distance from the coast

Projections (RCP8.5)

2030

1.0

2050

1.0

Data source

bushfire Risk

40/100

The bushfire risk in Alstonvale is moderate, with some areas bordering bushland. Drier conditions and higher temperatures can increase the likelihood of bushfires.

Primary Drivers

  • ·Increased temperatures
  • ·Drier conditions
  • ·Vegetation dryness

Projections (RCP8.5)

2030

4.5

2050

5.0

Data source

What This Means for Property Owners

Insurance Outlook

Premiums may increase due to flood and bushfire risks.

Price Impact

Properties in flood-prone areas may experience price reductions.

Buyer Checklist

  • 1.Check flood maps
  • 2.Assess bushfire risk
  • 3.Consider energy efficiency
  • 4.Review insurance options

Local Climate Evidence

Flood Evidence

Nearest Waterway
Local Creeks
Elevation Range
Varies, some low-lying areas
Flood Zone
Potentially affected areas near creeks

Historical flood data indicates past events in low-lying areas.

View council flood map

Bushfire Evidence

Distance to Bushland
Some areas adjacent to bushland
Planning Overlay
Check NSW RFS website
Bushfire Prone Area
Yes

Residents should maintain firebreaks and be aware of fire danger ratings.

Heat Evidence

Avg January Max Temp
31.5°C
Heat Stress Days/Year
3 days

Urban areas may experience higher temperatures due to the urban heat island effect.

Coastal Evidence

Distance to Coast
50 km
Sea Level Rise Exposure
Not directly exposed
Erosion Risk
Not applicable

Historical Climate Events

2013
floodModerate

Heavy rainfall caused localized flooding in low-lying areas of the suburb.

Source
2017
bushfireMinor

A bushfire near the suburb's outskirts threatened properties but was contained by fire services.

Source
2019
heatwaveModerate

A prolonged heatwave resulted in increased hospital admissions and strain on infrastructure.

Source
2022
floodMajor

Significant flooding event impacted multiple properties and required evacuation of residents.

Source

Climate Outlook to 2050

Projections based on CSIRO and BOM climate modelling. Scenario: RCP8.5

HazardToday20302050
flood657.0(+0.5)7.5(+1.0)
bushfire404.3(+0.3)4.5(+0.5)
heat606.7(+0.7)7.2(+1.2)
coastal101.01.0

By 2030, Alstonvale is projected to experience more frequent and intense heatwaves, with a notable increase in flood risk due to heavier rainfall events. Bushfire risk is also expected to rise slightly.

CSIRO Climate Projections

Adaptation Recommendations

Improve Flood Defenses

Near-term

Upgrade drainage systems and build flood barriers to protect properties from rising floodwaters.

Est. cost: High

Learn more

Enhance Bushfire Preparedness

Near-term

Implement vegetation management programs and create firebreaks to reduce bushfire risk.

Est. cost: Medium

Learn more

Develop Heat Action Plan

Immediate

Establish cooling centers and provide public awareness campaigns to help residents cope with extreme heat.

Est. cost: Low

Learn more

Promote Water Conservation

Long-term

Encourage water-saving measures to reduce strain on water resources during droughts and heatwaves.

Est. cost: Low

Learn more

Strengthen Building Codes

Long-term

Update building codes to ensure new constructions are resilient to climate change impacts, including floods, bushfires, and heatwaves.

Est. cost: Medium

Learn more

About Alstonvale's Climate Risk Profile

Alstonvale, NSW, is a suburb that faces a range of climate-related challenges. The primary concerns are flooding, heatwaves, and bushfire risk. Due to its location, the suburb is susceptible to flooding from intense rainfall events, which are projected to become more frequent and severe with climate change.

Heatwaves are another significant risk, with average temperatures expected to rise. This poses a threat to vulnerable populations, such as the elderly and those with chronic health conditions. The urban environment can also exacerbate the heat island effect, leading to even higher temperatures in built-up areas.

Bushfire risk is present, particularly in areas bordering bushland. Drier conditions and higher temperatures increase the likelihood of bushfires, which can pose a threat to property and human life.

While Alstonvale is not directly exposed to coastal risks, the broader impacts of climate change, such as disruptions to supply chains and increased migration, could indirectly affect the suburb. Addressing these climate risks requires a combination of mitigation and adaptation strategies, including reducing greenhouse gas emissions, improving infrastructure, and raising community awareness.

Data sources: BOM · CSIRO · NSW RFS · NSW Government

Local Government Resources

UNKNOWN

Flood MapsEmergency Services

Frequently Asked Questions

What are the main climate risks facing Alstonvale?

Alstonvale faces risks from flooding, heatwaves, and bushfires. Climate change is expected to increase the frequency and intensity of these events.

How will climate change affect property values in Alstonvale?

Properties in flood-prone areas may experience price reductions. Increased insurance premiums are also possible due to climate risks.

What can residents do to prepare for heatwaves?

Stay hydrated, seek air-conditioned environments, and check on vulnerable neighbors. Follow local health advice during heatwaves.

How can I protect my home from bushfires?

Maintain firebreaks, clear vegetation around your home, and have a bushfire survival plan. Check the NSW RFS website for more information.

Where can I find information about local flood risks?

Consult the NSW Government flood maps and contact the local council for information about flood-prone areas and emergency preparedness.

Is Alstonvale likely to experience water shortages in the future?

With increasing temperatures and potential droughts, water conservation is important. Residents should adopt water-saving measures to reduce strain on water resources.

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30-120%
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