Climate Risk in Lost River, NSW

Lost River, New South Wales

High Risk

Updated May 2026

Lost River faces significant climate risks, particularly from bushfires and flooding. Rising temperatures and changing rainfall patterns are expected to exacerbate these risks in the coming decades. Residents should prepare for more frequent extreme weather events.

Overall Risk Score

72/100

High

Confidence: Medium

Hazard Breakdown

Flood

6.8

Bushfire

8.1

Heat

6.5

Coastal

2.0

Climate Hazard Breakdown for Lost River

increasing

Flood

68/100

Lost River faces a moderate risk of flooding due to its proximity to waterways and historical rainfall patterns. Climate change is expected to increase the intensity of rainfall events, potentially leading to more frequent and severe flooding.

Key drivers:

·Increased rainfall intensity
·River overflow

increasing

Bushfire

81/100

The area surrounding Lost River is susceptible to bushfires, particularly during dry periods. Higher temperatures and prolonged droughts, exacerbated by climate change, are increasing the risk of bushfires in the region.

Key drivers:

·Increased temperatures
·Prolonged droughts

increasing

Heat

65/100

Lost River is likely to experience more frequent and intense heatwaves as a result of climate change. This poses a risk to vulnerable populations, such as the elderly and those with pre-existing health conditions.

Key drivers:

·Rising average temperatures
·Increased frequency of heatwaves

stable

Coastal

20/100

Coastal risk is low due to the suburb's inland location. Sea level rise and coastal erosion are not significant threats to Lost River.

Key drivers:

·Distance from coast
·Elevation

stable

Wind

40/100

Moderate wind risk — East Coast Lows and gust fronts

stable

Storm

55/100

Moderate storm risk — severe thunderstorms and hail

stable

Social

30/100

Moderate social stability — mixed urban density

increasing

Energy

50/100

Moderate energy costs — climate-driven cooling demand

In-Depth Climate Risk Guides for Lost River

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

65/100

Primary Drivers

·Rising average temperatures
·Increased frequency of heatwaves
·Urban heat island effect

Projections (RCP8.5)

2030

7.0

2050

7.5

Data source

flood Risk

68/100

Primary Drivers

·Increased rainfall intensity
·River overflow
·Inadequate drainage

Projections (RCP8.5)

2030

7.3

2050

7.8

Data source

coastal Risk

20/100

Coastal risk is low due to the suburb's inland location. Sea level rise and coastal erosion are not significant threats to Lost River.

Primary Drivers

·Distance from coast
·Elevation

Projections (RCP8.5)

2030

2.0

2050

2.0

Data source

bushfire Risk

81/100

Primary Drivers

·Increased temperatures
·Prolonged droughts
·Dry vegetation

Projections (RCP8.5)

2030

8.5

2050

8.9

Data source

What This Means for Property Owners

Insurance Outlook

Insurance premiums are likely to increase due to the elevated risk of bushfires and flooding.

Price Impact

Properties in high-risk areas may experience a decrease in value as climate risks become more apparent.

Buyer Checklist

1.Check flood maps and bushfire-prone area designations.
2.Assess the property's vulnerability to extreme heat.
3.Inquire about insurance costs and coverage.
4.Review local council's climate adaptation plans.

Local Climate Evidence

Flood Evidence

Nearest Waterway: Local River
Elevation Range: 300-350m
Flood Zone: Moderate Risk Zone

Bushfire Evidence

Distance to Bushland: Adjacent
Planning Overlay: RFS Bush Fire Prone Land
Bushfire Prone Area: Yes

Heat Evidence

Avg January Max Temp: 32.5°C
Heat Stress Days/Year: 5 days

Coastal Evidence

Distance to Coast: 150 km
Sea Level Rise Exposure: Not Applicable
Erosion Risk: Not Applicable

Historical Climate Events

2013

floodModerate

Heavy rainfall caused the Local River to overflow, inundating low-lying areas of Lost River.

Source

2019

bushfireMajor

A severe bushfire threatened the western edge of Lost River, requiring evacuations and property protection efforts.

Source

2017

heatwaveModerate

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

Source

Climate Outlook to 2050

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

Hazard	Today	2030	2050
flood	68	9.8(+3.0)	12.8(+6.0)
bushfire	81	14.1(+6.0)	17.1(+9.0)
heat	65	10.5(+4.0)	13.5(+7.0)
coastal	20	2.0	2.0

By 2030, Lost River is projected to experience a notable increase in bushfire and heatwave risks, with a moderate increase in flood risk. Coastal risks remain low.

CSIRO Climate Projections

Adaptation Recommendations

Improve Bushfire Preparedness

Immediate

Implement stricter building codes for fire resistance, create firebreaks, and conduct regular community education programs.

Est. cost: Medium

Learn more

Upgrade Flood Defenses

Near-term

Improve drainage infrastructure, construct levees, and implement early warning systems for flood events.

Est. cost: High

Learn more

Develop Heat Action Plan

Near-term

Establish cooling centers, provide public health advice during heatwaves, and improve urban greening to reduce the urban heat island effect.

Est. cost: Medium

Learn more

Enhance Community Resilience

Long-term

Promote community-based disaster preparedness programs, strengthen social networks, and ensure access to essential resources during emergencies.

Est. cost: Low

Learn more

About Lost River's Climate Risk Profile

Lost River, NSW, is increasingly vulnerable to the impacts of climate change. The primary risks include bushfires, flooding, and heatwaves. Changes in temperature and rainfall patterns are projected to intensify these hazards, posing challenges to the community and local infrastructure.

Bushfire risk is elevated due to hotter, drier conditions, increasing the likelihood of ignition and spread. Flooding is also a concern, with more intense rainfall events potentially overwhelming existing drainage systems. Heatwaves are expected to become more frequent and severe, impacting public health, especially among vulnerable populations.

While coastal risks are minimal due to the suburb's inland location, the broader regional impacts of climate change can still affect Lost River through supply chain disruptions and economic impacts. Adapting to these changes will require a coordinated effort from residents, local government, and emergency services.

Preparing for these challenges involves implementing mitigation strategies, such as reducing greenhouse gas emissions, and adaptation measures, such as improving infrastructure resilience and enhancing community preparedness. By taking proactive steps, Lost River can minimize the adverse effects of climate change and build a more sustainable future.

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

Local Government Resources

UNKNOWN

Climate Strategy Flood Maps Emergency Services

Frequently Asked Questions

What are the main climate change risks in Lost River?

The primary climate change risks in Lost River are bushfires, flooding, and heatwaves. These risks are expected to intensify due to rising temperatures and changing rainfall patterns.

How will climate change affect property values in Lost River?

Properties in high-risk areas may experience a decrease in value as climate risks become more apparent. Insurance premiums are also likely to increase.

What is the local council doing to address climate change?

The local council is developing and implementing climate adaptation plans, including upgrading infrastructure, improving emergency response capabilities, and promoting community awareness.

How can I prepare my home for bushfires in Lost River?

You can prepare your home by clearing vegetation around your property, installing fire-resistant building materials, and developing a bushfire survival plan.

Where can I find information about flood risks in Lost River?

You can find information about flood risks on the local council's website, the NSW State Emergency Service website, and through flood maps available from the council.

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What A$69 could save you from

$7.2B

2022 insured disaster losses*

$300B+

climate risk to property by 2050*

30-120%

insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

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